From a7164e90bff63e5dafb3d4f28fb7b6a4ecb96755 Mon Sep 17 00:00:00 2001
From: Allen Wittenauer <aw@apache.org>
Date: Fri, 4 Mar 2016 12:23:52 -0800
Subject: [PATCH] HADOOP-12798. Update changelog and release notes (2016-03-04)
 (aw)

(cherry picked from commit 55f73a1cbd45a62774e471b7a8a1e0cc40eecdd4)
(cherry picked from commit 95d30a6ec6648ec3a3ee602d9a8e60fc6001c20e)
---
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 .../markdown/release/0.20.3/CHANGES.0.20.3.md |   8 +-
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 .../release/2.1.0-beta/CHANGES.2.1.0-beta.md  |   6 +
 .../2.1.0-beta/RELEASENOTES.2.1.0-beta.md     |   2 +-
 .../release/2.1.1-beta/CHANGES.2.1.1-beta.md  |   6 +
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 .../release/2.2.1/RELEASENOTES.2.2.1.md       |   2 +-
 .../markdown/release/2.3.0/CHANGES.2.3.0.md   |  13 +-
 .../release/2.3.0/RELEASENOTES.2.3.0.md       |   3 +-
 .../markdown/release/2.4.0/CHANGES.2.4.0.md   |   7 +
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 .../markdown/release/2.6.0/CHANGES.2.6.0.md   |  11 +-
 .../release/2.6.0/RELEASENOTES.2.6.0.md       |  37 +--
 .../markdown/release/2.6.1/CHANGES.2.6.1.md   | 228 ++++++++++++++++++
 .../release/2.6.1/RELEASENOTES.2.6.1.md       |  45 ++++
 .../markdown/release/2.6.2/CHANGES.2.6.2.md   |  83 +++++++
 .../release/2.6.2/RELEASENOTES.2.6.2.md       |  21 ++
 .../markdown/release/2.6.3/CHANGES.2.6.3.md   | 103 ++++++++
 .../release/2.6.3/RELEASENOTES.2.6.3.md       |  21 ++
 .../markdown/release/2.6.4/CHANGES.2.6.4.md   | 114 +++++++++
 .../release/2.6.4/RELEASENOTES.2.6.4.md       |  28 +++
 .../markdown/release/2.7.0/CHANGES.2.7.0.md   |  16 +-
 .../release/2.7.0/RELEASENOTES.2.7.0.md       |  83 ++-----
 .../markdown/release/2.7.1/CHANGES.2.7.1.md   |  17 +-
 .../release/2.7.1/RELEASENOTES.2.7.1.md       |   7 +-
 .../markdown/release/2.7.2/CHANGES.2.7.2.md   | 224 +++++++++++++++++
 .../release/2.7.2/RELEASENOTES.2.7.2.md       |  35 +++
 238 files changed, 1787 insertions(+), 296 deletions(-)
 create mode 100644 hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.1/CHANGES.2.6.1.md
 create mode 100644 hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.1/RELEASENOTES.2.6.1.md
 create mode 100644 hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.2/CHANGES.2.6.2.md
 create mode 100644 hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.2/RELEASENOTES.2.6.2.md
 create mode 100644 hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.3/CHANGES.2.6.3.md
 create mode 100644 hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.3/RELEASENOTES.2.6.3.md
 create mode 100644 hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.4/CHANGES.2.6.4.md
 create mode 100644 hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.4/RELEASENOTES.2.6.4.md
 create mode 100644 hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.2/CHANGES.2.7.2.md
 create mode 100644 hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.2/RELEASENOTES.2.7.2.md

diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.0/CHANGES.0.1.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.0/CHANGES.0.1.0.md
index 434d7c354f8..38c4b90c2d7 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.0/CHANGES.0.1.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.0/CHANGES.0.1.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.0/RELEASENOTES.0.1.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.0/RELEASENOTES.0.1.0.md
index d2b896d9bf2..0e4069b4446 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.0/RELEASENOTES.0.1.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.0/RELEASENOTES.0.1.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.1.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.1/CHANGES.0.1.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.1/CHANGES.0.1.1.md
index 21dfefc047b..a40faad847b 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.1/CHANGES.0.1.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.1/CHANGES.0.1.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.1/RELEASENOTES.0.1.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.1/RELEASENOTES.0.1.1.md
index 213673c05a0..b40e8ca364f 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.1/RELEASENOTES.0.1.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.1.1/RELEASENOTES.0.1.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.1.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.0/CHANGES.0.10.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.0/CHANGES.0.10.0.md
index b09a09e5af7..c0cda8926ee 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.0/CHANGES.0.10.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.0/CHANGES.0.10.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.0/RELEASENOTES.0.10.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.0/RELEASENOTES.0.10.0.md
index 63ab3480bc7..c0d13df7312 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.0/RELEASENOTES.0.10.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.0/RELEASENOTES.0.10.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.10.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.1/CHANGES.0.10.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.1/CHANGES.0.10.1.md
index dc0018d8e0a..0e97344b2d2 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.1/CHANGES.0.10.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.1/CHANGES.0.10.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.1/RELEASENOTES.0.10.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.1/RELEASENOTES.0.10.1.md
index 15a0fd5d421..a672981bb0d 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.1/RELEASENOTES.0.10.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.10.1/RELEASENOTES.0.10.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.10.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.0/CHANGES.0.11.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.0/CHANGES.0.11.0.md
index ccd45655db1..fddbe0182f0 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.0/CHANGES.0.11.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.0/CHANGES.0.11.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.0/RELEASENOTES.0.11.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.0/RELEASENOTES.0.11.0.md
index 85d59dc7272..ba004ee7f93 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.0/RELEASENOTES.0.11.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.0/RELEASENOTES.0.11.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.11.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.1/CHANGES.0.11.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.1/CHANGES.0.11.1.md
index 2a01ac441a1..87afd44c9f6 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.1/CHANGES.0.11.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.1/CHANGES.0.11.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.1/RELEASENOTES.0.11.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.1/RELEASENOTES.0.11.1.md
index 119b8d20b25..6fb40d79341 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.1/RELEASENOTES.0.11.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.1/RELEASENOTES.0.11.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.11.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.2/CHANGES.0.11.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.2/CHANGES.0.11.2.md
index 669831d8926..0f3e7cda56d 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.2/CHANGES.0.11.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.2/CHANGES.0.11.2.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.2/RELEASENOTES.0.11.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.2/RELEASENOTES.0.11.2.md
index 24da1479020..9a65d154e1b 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.2/RELEASENOTES.0.11.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.11.2/RELEASENOTES.0.11.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.11.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.0/CHANGES.0.12.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.0/CHANGES.0.12.0.md
index bcac77275e2..40e402c8d51 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.0/CHANGES.0.12.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.0/CHANGES.0.12.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.0/RELEASENOTES.0.12.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.0/RELEASENOTES.0.12.0.md
index e8d86befc15..88d6d597477 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.0/RELEASENOTES.0.12.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.0/RELEASENOTES.0.12.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.12.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.1/CHANGES.0.12.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.1/CHANGES.0.12.1.md
index 0c69aad003f..74a17c692a3 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.1/CHANGES.0.12.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.1/CHANGES.0.12.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.1/RELEASENOTES.0.12.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.1/RELEASENOTES.0.12.1.md
index 5051099f1af..46739bc6629 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.1/RELEASENOTES.0.12.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.1/RELEASENOTES.0.12.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.12.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.2/CHANGES.0.12.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.2/CHANGES.0.12.2.md
index f473cbf5bc6..e70e14ba834 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.2/CHANGES.0.12.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.2/CHANGES.0.12.2.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.2/RELEASENOTES.0.12.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.2/RELEASENOTES.0.12.2.md
index dffca2b2458..f1fa65a1c92 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.2/RELEASENOTES.0.12.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.2/RELEASENOTES.0.12.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.12.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.3/CHANGES.0.12.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.3/CHANGES.0.12.3.md
index 62a8420b8c6..0bba5ae609e 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.3/CHANGES.0.12.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.3/CHANGES.0.12.3.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.3/RELEASENOTES.0.12.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.3/RELEASENOTES.0.12.3.md
index a9cb6510cd8..923c7ccdb84 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.3/RELEASENOTES.0.12.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.12.3/RELEASENOTES.0.12.3.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.12.3 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.13.0/CHANGES.0.13.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.13.0/CHANGES.0.13.0.md
index 5dcd5c656b7..d79fb5ec336 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.13.0/CHANGES.0.13.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.13.0/CHANGES.0.13.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.13.0/RELEASENOTES.0.13.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.13.0/RELEASENOTES.0.13.0.md
index 41c18bd6a2b..f404223fcda 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.13.0/RELEASENOTES.0.13.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.13.0/RELEASENOTES.0.13.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.13.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.0/CHANGES.0.14.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.0/CHANGES.0.14.0.md
index 541f4c90c82..c432600f0b3 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.0/CHANGES.0.14.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.0/CHANGES.0.14.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.0/RELEASENOTES.0.14.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.0/RELEASENOTES.0.14.0.md
index 9d34985161a..bc985e8baa1 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.0/RELEASENOTES.0.14.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.0/RELEASENOTES.0.14.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.14.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.1/CHANGES.0.14.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.1/CHANGES.0.14.1.md
index 21b297ac45f..01cff1d2d87 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.1/CHANGES.0.14.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.1/CHANGES.0.14.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.1/RELEASENOTES.0.14.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.1/RELEASENOTES.0.14.1.md
index 40f7a45ee90..929d9d9ca48 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.1/RELEASENOTES.0.14.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.1/RELEASENOTES.0.14.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.14.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.2/CHANGES.0.14.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.2/CHANGES.0.14.2.md
index dc5382830f8..5e7d774848a 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.2/CHANGES.0.14.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.2/CHANGES.0.14.2.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.2/RELEASENOTES.0.14.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.2/RELEASENOTES.0.14.2.md
index 33e5578f68e..75b45f066fc 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.2/RELEASENOTES.0.14.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.2/RELEASENOTES.0.14.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.14.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.3/CHANGES.0.14.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.3/CHANGES.0.14.3.md
index afc35b2fe5f..e418744fd3b 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.3/CHANGES.0.14.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.3/CHANGES.0.14.3.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.3/RELEASENOTES.0.14.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.3/RELEASENOTES.0.14.3.md
index 222e0a0ea2a..249a95b18e2 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.3/RELEASENOTES.0.14.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.3/RELEASENOTES.0.14.3.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.14.3 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.4/CHANGES.0.14.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.4/CHANGES.0.14.4.md
index c2f17c5efc1..f6bf9f1a3d8 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.4/CHANGES.0.14.4.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.4/CHANGES.0.14.4.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.4/RELEASENOTES.0.14.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.4/RELEASENOTES.0.14.4.md
index 274308241e2..b149d551c40 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.4/RELEASENOTES.0.14.4.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.14.4/RELEASENOTES.0.14.4.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.14.4 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.0/CHANGES.0.15.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.0/CHANGES.0.15.0.md
index e2d136bbb28..cb857162bf2 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.0/CHANGES.0.15.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.0/CHANGES.0.15.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.0/RELEASENOTES.0.15.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.0/RELEASENOTES.0.15.0.md
index ea88f02867c..f7177ecd45c 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.0/RELEASENOTES.0.15.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.0/RELEASENOTES.0.15.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.15.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.1/CHANGES.0.15.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.1/CHANGES.0.15.1.md
index 670e22a0521..acadf7d7d44 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.1/CHANGES.0.15.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.1/CHANGES.0.15.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.1/RELEASENOTES.0.15.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.1/RELEASENOTES.0.15.1.md
index 05d175f0f7a..33b73c8a2b2 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.1/RELEASENOTES.0.15.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.1/RELEASENOTES.0.15.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.15.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.2/CHANGES.0.15.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.2/CHANGES.0.15.2.md
index 10fc49ee806..c046da153b2 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.2/CHANGES.0.15.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.2/CHANGES.0.15.2.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.2/RELEASENOTES.0.15.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.2/RELEASENOTES.0.15.2.md
index 801d958ea52..3dfa438bf6a 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.2/RELEASENOTES.0.15.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.2/RELEASENOTES.0.15.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.15.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.3/CHANGES.0.15.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.3/CHANGES.0.15.3.md
index 9c15db6c64f..4967b9f839e 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.3/CHANGES.0.15.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.3/CHANGES.0.15.3.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.3/RELEASENOTES.0.15.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.3/RELEASENOTES.0.15.3.md
index c5e628d8d9d..7fe66fa65bf 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.3/RELEASENOTES.0.15.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.3/RELEASENOTES.0.15.3.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.15.3 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.4/CHANGES.0.15.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.4/CHANGES.0.15.4.md
index 41aa5f003cb..8cd31609f45 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.4/CHANGES.0.15.4.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.4/CHANGES.0.15.4.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop Changelog
 
-## Release 0.15.4 - Unreleased
+## Release 0.15.4 - Unreleased (as of 2016-03-04)
 
 ### INCOMPATIBLE CHANGES:
 
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.4/RELEASENOTES.0.15.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.4/RELEASENOTES.0.15.4.md
index 679f0d39d99..1bdd2ab4aab 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.4/RELEASENOTES.0.15.4.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.15.4/RELEASENOTES.0.15.4.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.15.4 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.0/CHANGES.0.16.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.0/CHANGES.0.16.0.md
index 1422bdc5598..4be7a96f781 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.0/CHANGES.0.16.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.0/CHANGES.0.16.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.0/RELEASENOTES.0.16.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.0/RELEASENOTES.0.16.0.md
index e0ee47922ea..377a6c20dba 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.0/RELEASENOTES.0.16.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.0/RELEASENOTES.0.16.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.16.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.1/CHANGES.0.16.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.1/CHANGES.0.16.1.md
index 4c403be3d75..c989fd725e7 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.1/CHANGES.0.16.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.1/CHANGES.0.16.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.1/RELEASENOTES.0.16.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.1/RELEASENOTES.0.16.1.md
index 39257cc0b99..51019be2f18 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.1/RELEASENOTES.0.16.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.1/RELEASENOTES.0.16.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.16.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.2/CHANGES.0.16.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.2/CHANGES.0.16.2.md
index 1c528f4056a..dee3d74d145 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.2/CHANGES.0.16.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.2/CHANGES.0.16.2.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.2/RELEASENOTES.0.16.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.2/RELEASENOTES.0.16.2.md
index 2ba4ee46c9d..a63c10f5088 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.2/RELEASENOTES.0.16.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.2/RELEASENOTES.0.16.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.16.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.3/CHANGES.0.16.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.3/CHANGES.0.16.3.md
index 955623bccdf..b4552bbf02a 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.3/CHANGES.0.16.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.3/CHANGES.0.16.3.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.3/RELEASENOTES.0.16.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.3/RELEASENOTES.0.16.3.md
index ae7811035d5..0b5814cb3dc 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.3/RELEASENOTES.0.16.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.3/RELEASENOTES.0.16.3.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.16.3 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.4/CHANGES.0.16.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.4/CHANGES.0.16.4.md
index ae027ce8b0b..3eac7ed717c 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.4/CHANGES.0.16.4.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.4/CHANGES.0.16.4.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.4/RELEASENOTES.0.16.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.4/RELEASENOTES.0.16.4.md
index fb5fc834b9d..a3d4c8c5e49 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.4/RELEASENOTES.0.16.4.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.16.4/RELEASENOTES.0.16.4.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.16.4 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.0/CHANGES.0.17.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.0/CHANGES.0.17.0.md
index bf0fd321951..bbf3d233860 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.0/CHANGES.0.17.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.0/CHANGES.0.17.0.md
@@ -61,6 +61,12 @@
 | [HADOOP-771](https://issues.apache.org/jira/browse/HADOOP-771) | Namenode should return error when trying to delete non-empty directory |  Major | . | Milind Bhandarkar | Mahadev konar |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.0/RELEASENOTES.0.17.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.0/RELEASENOTES.0.17.0.md
index 467f2ac62a6..c8c27943bdf 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.0/RELEASENOTES.0.17.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.0/RELEASENOTES.0.17.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.17.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -416,7 +416,7 @@ Change DFS block placement to allocate the first replica locally, the second off
 
 * [HADOOP-2551](https://issues.apache.org/jira/browse/HADOOP-2551) | *Blocker* | **hadoop-env.sh needs finer granularity**
 
-New environment variables were introduced to allow finer grained control of Java options passed to server and client JVMs.  See the new *\_OPTS variables in conf/hadoop-env.sh.
+New environment variables were introduced to allow finer grained control of Java options passed to server and client JVMs.  See the new \*\_OPTS variables in conf/hadoop-env.sh.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.1/CHANGES.0.17.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.1/CHANGES.0.17.1.md
index 991cbd7ef56..f69eb786ed4 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.1/CHANGES.0.17.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.1/CHANGES.0.17.1.md
@@ -27,6 +27,12 @@
 | [HADOOP-3565](https://issues.apache.org/jira/browse/HADOOP-3565) | JavaSerialization can throw java.io.StreamCorruptedException |  Major | . | Tom White | Tom White |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.1/RELEASENOTES.0.17.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.1/RELEASENOTES.0.17.1.md
index 7cc43a3a183..ee48400e72d 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.1/RELEASENOTES.0.17.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.1/RELEASENOTES.0.17.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.17.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.2/CHANGES.0.17.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.2/CHANGES.0.17.2.md
index 2ee5df69c58..db3eac40b84 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.2/CHANGES.0.17.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.2/CHANGES.0.17.2.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.2/RELEASENOTES.0.17.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.2/RELEASENOTES.0.17.2.md
index 22c90b81d2a..27e492464e1 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.2/RELEASENOTES.0.17.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.2/RELEASENOTES.0.17.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.17.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.3/CHANGES.0.17.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.3/CHANGES.0.17.3.md
index 1b8a3ed2864..4b7b7b1d83b 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.3/CHANGES.0.17.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.3/CHANGES.0.17.3.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop Changelog
 
-## Release 0.17.3 - Unreleased
+## Release 0.17.3 - Unreleased (as of 2016-03-04)
 
 ### INCOMPATIBLE CHANGES:
 
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.3/RELEASENOTES.0.17.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.3/RELEASENOTES.0.17.3.md
index dd019268ecb..ada8b271f52 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.3/RELEASENOTES.0.17.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.17.3/RELEASENOTES.0.17.3.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.17.3 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.0/CHANGES.0.18.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.0/CHANGES.0.18.0.md
index 7df47c0b83e..202f4348faf 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.0/CHANGES.0.18.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.0/CHANGES.0.18.0.md
@@ -65,6 +65,12 @@
 | [HADOOP-544](https://issues.apache.org/jira/browse/HADOOP-544) | Replace the job, tip and task ids with objects. |  Major | . | Owen O'Malley | Enis Soztutar |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.0/RELEASENOTES.0.18.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.0/RELEASENOTES.0.18.0.md
index 81278d16780..f57c6025c42 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.0/RELEASENOTES.0.18.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.0/RELEASENOTES.0.18.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.18.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.1/CHANGES.0.18.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.1/CHANGES.0.18.1.md
index 8fa57cbef58..dec3ae16dcf 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.1/CHANGES.0.18.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.1/CHANGES.0.18.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.1/RELEASENOTES.0.18.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.1/RELEASENOTES.0.18.1.md
index 136744359d6..e9d1c067df8 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.1/RELEASENOTES.0.18.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.1/RELEASENOTES.0.18.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.18.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.2/CHANGES.0.18.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.2/CHANGES.0.18.2.md
index 774cfca1e09..d7e6ac7737c 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.2/CHANGES.0.18.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.2/CHANGES.0.18.2.md
@@ -27,6 +27,12 @@
 | [HADOOP-4228](https://issues.apache.org/jira/browse/HADOOP-4228) | dfs datanode metrics, bytes\_read, bytes\_written overflows due to incorrect type used. |  Blocker | metrics | Eric Yang | Eric Yang |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.2/RELEASENOTES.0.18.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.2/RELEASENOTES.0.18.2.md
index a9ec7c35c6f..e808cd3efd7 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.2/RELEASENOTES.0.18.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.2/RELEASENOTES.0.18.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.18.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.3/CHANGES.0.18.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.3/CHANGES.0.18.3.md
index 97d64768a29..7c33c5efdf3 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.3/CHANGES.0.18.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.3/CHANGES.0.18.3.md
@@ -29,6 +29,12 @@
 | [HADOOP-4061](https://issues.apache.org/jira/browse/HADOOP-4061) | Large number of decommission freezes the Namenode |  Major | . | Koji Noguchi | Tsz Wo Nicholas Sze |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.3/RELEASENOTES.0.18.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.3/RELEASENOTES.0.18.3.md
index 7c767da261b..4dd9c06a7d9 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.3/RELEASENOTES.0.18.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.3/RELEASENOTES.0.18.3.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.18.3 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.4/CHANGES.0.18.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.4/CHANGES.0.18.4.md
index b5cb699d0c1..da4f4c10a5d 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.4/CHANGES.0.18.4.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.4/CHANGES.0.18.4.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop Changelog
 
-## Release 0.18.4 - Unreleased
+## Release 0.18.4 - Unreleased (as of 2016-03-04)
 
 ### INCOMPATIBLE CHANGES:
 
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.4/RELEASENOTES.0.18.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.4/RELEASENOTES.0.18.4.md
index 725c5c45ca2..732ff7f738d 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.4/RELEASENOTES.0.18.4.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.18.4/RELEASENOTES.0.18.4.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.18.4 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.0/CHANGES.0.19.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.0/CHANGES.0.19.0.md
index 7b62b094d36..29e9ab9b898 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.0/CHANGES.0.19.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.0/CHANGES.0.19.0.md
@@ -51,6 +51,12 @@
 | [HADOOP-1700](https://issues.apache.org/jira/browse/HADOOP-1700) | Append to files in HDFS |  Major | . | stack | dhruba borthakur |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.0/RELEASENOTES.0.19.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.0/RELEASENOTES.0.19.0.md
index 2348e76166c..187b087ce3a 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.0/RELEASENOTES.0.19.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.0/RELEASENOTES.0.19.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.19.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -304,7 +304,7 @@ Adds a new contrib, bash-tab-completion, which enables bash tab completion for t
 
 * [HADOOP-3702](https://issues.apache.org/jira/browse/HADOOP-3702) | *Major* | **add support for chaining Maps in a single Map and after a Reduce [M\*/RM\*]**
 
-Introduced ChainMapper and the ChainReducer classes to allow composing chains of Maps and Reduces in a single Map/Reduce job, something like MAP+ REDUCE MAP*.
+Introduced ChainMapper and the ChainReducer classes to allow composing chains of Maps and Reduces in a single Map/Reduce job, something like MAP+ REDUCE MAP\*.
 
 
 ---
@@ -474,7 +474,7 @@ Introduced LZOP codec.
 
 * [HADOOP-2411](https://issues.apache.org/jira/browse/HADOOP-2411) | *Major* | **Add support for larger EC2 instance types**
 
-Added support for c1.* instance types and associated kernels for EC2.
+Added support for c1.\* instance types and associated kernels for EC2.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.1/CHANGES.0.19.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.1/CHANGES.0.19.1.md
index 275ea5b2c09..fcc53f1aff6 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.1/CHANGES.0.19.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.1/CHANGES.0.19.1.md
@@ -29,6 +29,12 @@
 | [HADOOP-4061](https://issues.apache.org/jira/browse/HADOOP-4061) | Large number of decommission freezes the Namenode |  Major | . | Koji Noguchi | Tsz Wo Nicholas Sze |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.1/RELEASENOTES.0.19.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.1/RELEASENOTES.0.19.1.md
index 25984a4bb73..f2367108782 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.1/RELEASENOTES.0.19.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.1/RELEASENOTES.0.19.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.19.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.2/CHANGES.0.19.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.2/CHANGES.0.19.2.md
index 0a823a22566..2071806324b 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.2/CHANGES.0.19.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.2/CHANGES.0.19.2.md
@@ -27,6 +27,12 @@
 | [HADOOP-5332](https://issues.apache.org/jira/browse/HADOOP-5332) | Make support for file append API configurable |  Blocker | . | Nigel Daley | dhruba borthakur |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.2/RELEASENOTES.0.19.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.2/RELEASENOTES.0.19.2.md
index 5cf2ebf6819..862304e0a7b 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.2/RELEASENOTES.0.19.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.19.2/RELEASENOTES.0.19.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.19.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.0/CHANGES.0.2.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.0/CHANGES.0.2.0.md
index 9769965386b..72e7d428c85 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.0/CHANGES.0.2.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.0/CHANGES.0.2.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.0/RELEASENOTES.0.2.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.0/RELEASENOTES.0.2.0.md
index 75182d19b40..a61abcf2967 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.0/RELEASENOTES.0.2.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.0/RELEASENOTES.0.2.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.2.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.1/CHANGES.0.2.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.1/CHANGES.0.2.1.md
index 19e53c2c1f7..f236e844698 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.1/CHANGES.0.2.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.1/CHANGES.0.2.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.1/RELEASENOTES.0.2.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.1/RELEASENOTES.0.2.1.md
index 0e5f0337d3d..903c9924ee1 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.1/RELEASENOTES.0.2.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.2.1/RELEASENOTES.0.2.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.2.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.0/CHANGES.0.20.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.0/CHANGES.0.20.0.md
index 2e03f9e95a5..4c1dd51c5b3 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.0/CHANGES.0.20.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.0/CHANGES.0.20.0.md
@@ -52,6 +52,12 @@
 | [HADOOP-1650](https://issues.apache.org/jira/browse/HADOOP-1650) | Upgrade Jetty to 6.x |  Major | . | Devaraj Das | Chris Douglas |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.0/RELEASENOTES.0.20.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.0/RELEASENOTES.0.20.0.md
index 339d7abbd25..4e1395904e0 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.0/RELEASENOTES.0.20.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.0/RELEASENOTES.0.20.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.20.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -306,7 +306,7 @@ Removed deprecated method parseArgs from org.apache.hadoop.fs.FileSystem.
 
 * [HADOOP-3497](https://issues.apache.org/jira/browse/HADOOP-3497) | *Major* | **File globbing with a PathFilter is too restrictive**
 
-Changed the semantics of file globbing with a PathFilter (using the globStatus method of FileSystem). Previously, the filtering was too restrictive, so that a glob of /*/* and a filter that only accepts /a/b would not have matched /a/b. With this change /a/b does match.
+Changed the semantics of file globbing with a PathFilter (using the globStatus method of FileSystem). Previously, the filtering was too restrictive, so that a glob of /\*/\* and a filter that only accepts /a/b would not have matched /a/b. With this change /a/b does match.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.1/CHANGES.0.20.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.1/CHANGES.0.20.1.md
index 59af3f2ce60..45ca0d7487c 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.1/CHANGES.0.20.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.1/CHANGES.0.20.1.md
@@ -28,6 +28,12 @@
 | [HADOOP-5726](https://issues.apache.org/jira/browse/HADOOP-5726) | Remove pre-emption from the capacity scheduler code base |  Major | . | Hemanth Yamijala | rahul k singh |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.1/RELEASENOTES.0.20.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.1/RELEASENOTES.0.20.1.md
index afe74f186a8..953c10063e0 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.1/RELEASENOTES.0.20.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.1/RELEASENOTES.0.20.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.20.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -46,7 +46,7 @@ Post HADOOP-4372, empty job history files caused NPE. This issues fixes that by
 
 * [HADOOP-5921](https://issues.apache.org/jira/browse/HADOOP-5921) | *Major* | **JobTracker does not come up because of NotReplicatedYetException**
 
-Jobtracker crashes if it fails to create jobtracker.info file (i.e if sufficient datanodes are not up). With this patch it keeps on retrying on IOExceptions assuming IOExceptions in jobtracker.info creation implies that the hdfs is not in *ready *state.
+Jobtracker crashes if it fails to create jobtracker.info file (i.e if sufficient datanodes are not up). With this patch it keeps on retrying on IOExceptions assuming IOExceptions in jobtracker.info creation implies that the hdfs is not in \*ready \*state.
 
 
 ---
@@ -142,7 +142,7 @@ Job initialization process was changed to not change (run) states during initial
 - this can lead to deadlock as state changes require circular locking (i.e JobInProgress requires JobTracker lock)
 - events were not raised as these state changes were not informed/propogated back to the JobTracker
 
-Now the JobTracker takes care of initializing/failing/killing the job and raising appropriate events. The simple rule that was enforced was that "The JobTracker lock is *must* before changing the run-state of a job".
+Now the JobTracker takes care of initializing/failing/killing the job and raising appropriate events. The simple rule that was enforced was that "The JobTracker lock is \*must\* before changing the run-state of a job".
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.2/CHANGES.0.20.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.2/CHANGES.0.20.2.md
index fb21db9fbde..3ca5bdb7554 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.2/CHANGES.0.20.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.2/CHANGES.0.20.2.md
@@ -27,6 +27,12 @@
 | [HDFS-793](https://issues.apache.org/jira/browse/HDFS-793) | DataNode should first receive the whole packet ack message before it constructs and sends its own ack message for the packet |  Blocker | datanode | Hairong Kuang | Hairong Kuang |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.2/RELEASENOTES.0.20.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.2/RELEASENOTES.0.20.2.md
index f363e0a7fc5..2ebfdc04f77 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.2/RELEASENOTES.0.20.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.2/RELEASENOTES.0.20.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.20.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.0/CHANGES.0.20.203.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.0/CHANGES.0.20.203.0.md
index d951eefc1fb..b45f75afeb9 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.0/CHANGES.0.20.203.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.0/CHANGES.0.20.203.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.0/RELEASENOTES.0.20.203.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.0/RELEASENOTES.0.20.203.0.md
index 1c1dd4c392f..4138475c725 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.0/RELEASENOTES.0.20.203.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.0/RELEASENOTES.0.20.203.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.20.203.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -73,10 +73,10 @@ Configuration changes:
 
 This patch does four things:
 
-    * it changes the directory structure of the done directory that holds history logs for jobs that are completed,
-    * it builds toy databases for completed jobs, so we no longer have to scan 2N files on DFS to find out facts about the N jobs that have completed since the job tracker started [which can be hundreds of thousands of files in practical cases],
-    * it changes the job history browser to display more information and allow more filtering criteria, and
-    * it creates a new programmatic interface for finding files matching user-chosen criteria. This allows users to no longer be concerned with our methods of storing them, in turn allowing us to change those at will.
+\* it changes the directory structure of the done directory that holds history logs for jobs that are completed,
+\* it builds toy databases for completed jobs, so we no longer have to scan 2N files on DFS to find out facts about the N jobs that have completed since the job tracker started [which can be hundreds of thousands of files in practical cases],
+\* it changes the job history browser to display more information and allow more filtering criteria, and
+\* it creates a new programmatic interface for finding files matching user-chosen criteria. This allows users to no longer be concerned with our methods of storing them, in turn allowing us to change those at will.
 
 The new API described above, which can be used to programmatically obtain history file PATHs given search criteria, is described below:
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.1/CHANGES.0.20.203.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.1/CHANGES.0.20.203.1.md
index def258c98c2..a288a36114d 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.1/CHANGES.0.20.203.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.1/CHANGES.0.20.203.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop Changelog
 
-## Release 0.20.203.1 - Unreleased
+## Release 0.20.203.1 - Unreleased (as of 2016-03-04)
 
 ### INCOMPATIBLE CHANGES:
 
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.1/RELEASENOTES.0.20.203.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.1/RELEASENOTES.0.20.203.1.md
index 5827567e144..97f4784fe46 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.1/RELEASENOTES.0.20.203.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.203.1/RELEASENOTES.0.20.203.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.20.203.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.204.0/CHANGES.0.20.204.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.204.0/CHANGES.0.20.204.0.md
index b7eb2b997a1..a9d18ef719d 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.204.0/CHANGES.0.20.204.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.204.0/CHANGES.0.20.204.0.md
@@ -27,6 +27,12 @@
 | [HADOOP-6255](https://issues.apache.org/jira/browse/HADOOP-6255) | Create an rpm integration project |  Major | . | Owen O'Malley | Eric Yang |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.204.0/RELEASENOTES.0.20.204.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.204.0/RELEASENOTES.0.20.204.0.md
index 7a5f56093ba..ae774bde329 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.204.0/RELEASENOTES.0.20.204.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.204.0/RELEASENOTES.0.20.204.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.20.204.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.205.0/CHANGES.0.20.205.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.205.0/CHANGES.0.20.205.0.md
index f032539a6ee..1e26cb4ee73 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.205.0/CHANGES.0.20.205.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.205.0/CHANGES.0.20.205.0.md
@@ -29,6 +29,12 @@
 | [HDFS-630](https://issues.apache.org/jira/browse/HDFS-630) | In DFSOutputStream.nextBlockOutputStream(), the client can exclude specific datanodes when locating the next block. |  Major | hdfs-client, namenode | Ruyue Ma | Cosmin Lehene |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.205.0/RELEASENOTES.0.20.205.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.205.0/RELEASENOTES.0.20.205.0.md
index 269401a2cfe..c70b653130d 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.205.0/RELEASENOTES.0.20.205.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.205.0/RELEASENOTES.0.20.205.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.20.205.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/CHANGES.0.20.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/CHANGES.0.20.3.md
index 1bac3d5522b..3a5e7492c90 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/CHANGES.0.20.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/CHANGES.0.20.3.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop Changelog
 
-## Release 0.20.3 - Unreleased
+## Release 0.20.3 - Unreleased (as of 2016-03-04)
 
 ### INCOMPATIBLE CHANGES:
 
@@ -29,6 +29,12 @@
 | [HDFS-132](https://issues.apache.org/jira/browse/HDFS-132) | Namenode in Safemode reports to Simon non-zero number of deleted files during startup |  Minor | namenode | Hairong Kuang | Suresh Srinivas |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/RELEASENOTES.0.20.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/RELEASENOTES.0.20.3.md
index 5e71d303751..4f48cfccb4a 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/RELEASENOTES.0.20.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.20.3/RELEASENOTES.0.20.3.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.20.3 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.0/CHANGES.0.21.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.0/CHANGES.0.21.0.md
index da203dcb4ad..75c62a14374 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.0/CHANGES.0.21.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.0/CHANGES.0.21.0.md
@@ -107,6 +107,12 @@
 | [MAPREDUCE-157](https://issues.apache.org/jira/browse/MAPREDUCE-157) | Job History log file format is not friendly for external tools. |  Major | . | Owen O'Malley | Jothi Padmanabhan |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.0/RELEASENOTES.0.21.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.0/RELEASENOTES.0.21.0.md
index 97016b2b4a9..9f341c1e637 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.0/RELEASENOTES.0.21.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.0/RELEASENOTES.0.21.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.21.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -503,7 +503,7 @@ Jars passed to the -libjars option of hadoop jars are no longer unpacked inside
 
 * [HADOOP-5144](https://issues.apache.org/jira/browse/HADOOP-5144) | *Major* | **manual way of turning on restore of failed storage replicas for namenode**
 
-New DFSAdmin command -restoreFailedStorage true|false|check sets policy for restoring failed fsimage/editslog volumes.
+New DFSAdmin command -restoreFailedStorage true\|false\|check sets policy for restoring failed fsimage/editslog volumes.
 
 
 ---
@@ -1624,7 +1624,7 @@ Fixed TaskTracker and related classes so as to set correct and most restrictive
 $mapred.local.dir
    `-- taskTracker
         `-- $user
-               |- distcache
+               \|- distcache
                `-- jobcache
  - Distributed cache files/archives are now user-owned by the job-owner and the group-owned by the special group-owner of the task-controller binary. The files/archives are set most private permissions possible, and as soon as possible, immediately after the files/dirs are first localized on the TT.
  - As depicted by the new directory structure, a directory corresponding to each user is created on each TT when that particular user's first task are assigned to the corresponding TT. These user directories remain on the TT forever are not cleaned when unused, which is targeted to be fixed via MAPREDUCE-1019.
@@ -1951,7 +1951,7 @@ Added a new target 'test-commit' to the build.xml file which runs tests specifie
 
 * [MAPREDUCE-656](https://issues.apache.org/jira/browse/MAPREDUCE-656) | *Major* | **Change org.apache.hadoop.mapred.SequenceFile\* classes to use new api**
 
-Ports the SequenceFile* classes to the new Map/Reduce API
+Ports the SequenceFile\* classes to the new Map/Reduce API
 
 
 ---
@@ -2224,7 +2224,7 @@ Only one MR cluster is brought up and hence there is no scope of jobid clashing.
 
 * [MAPREDUCE-144](https://issues.apache.org/jira/browse/MAPREDUCE-144) | *Major* | **TaskMemoryManager should log process-tree's status while killing tasks.**
 
-Modified TaskMemoryManager so that it logs a map/reduce task's process-tree's status just before it is killed when it grows out of its configured memory limits. The log dump is in the format " |- PID PPID PGRPID SESSID CMD\_NAME VMEM\_USAGE(BYTES) FULL\_CMD\_LINE".
+Modified TaskMemoryManager so that it logs a map/reduce task's process-tree's status just before it is killed when it grows out of its configured memory limits. The log dump is in the format " \|- PID PPID PGRPID SESSID CMD\_NAME VMEM\_USAGE(BYTES) FULL\_CMD\_LINE".
 
 This is useful for debugging the cause for a map/reduce task and it's corresponding process-tree to be killed by the TaskMemoryManager.
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.1/CHANGES.0.21.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.1/CHANGES.0.21.1.md
index 7acc4fc4b1f..c5e4468a856 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.1/CHANGES.0.21.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.1/CHANGES.0.21.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop Changelog
 
-## Release 0.21.1 - Unreleased
+## Release 0.21.1 - Unreleased (as of 2016-03-04)
 
 ### INCOMPATIBLE CHANGES:
 
@@ -27,6 +27,12 @@
 | [MAPREDUCE-1905](https://issues.apache.org/jira/browse/MAPREDUCE-1905) | Context.setStatus() and progress() api are ignored |  Blocker | task | Amareshwari Sriramadasu | Amareshwari Sriramadasu |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.1/RELEASENOTES.0.21.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.1/RELEASENOTES.0.21.1.md
index 1d88d20ea93..0e2a4e87a88 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.1/RELEASENOTES.0.21.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.21.1/RELEASENOTES.0.21.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.21.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -32,7 +32,7 @@ Updated the help for the touchz command.
 
 * [HADOOP-7117](https://issues.apache.org/jira/browse/HADOOP-7117) | *Major* | **Move secondary namenode checkpoint configs from core-default.xml to hdfs-default.xml**
 
-Removed references to the older fs.checkpoint.* properties that resided in core-site.xml
+Removed references to the older fs.checkpoint.\* properties that resided in core-site.xml
 
 
 ---
@@ -53,7 +53,7 @@ I have just committed this to 0.21 and trunk. Thanks Vinay.
 
 * [HDFS-1596](https://issues.apache.org/jira/browse/HDFS-1596) | *Major* | **Move secondary namenode checkpoint configs from core-default.xml to hdfs-default.xml**
 
-Removed references to the older fs.checkpoint.* properties that resided in core-site.xml
+Removed references to the older fs.checkpoint.\* properties that resided in core-site.xml
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.0/CHANGES.0.22.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.0/CHANGES.0.22.0.md
index 2869b09fe26..40de51c1f7c 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.0/CHANGES.0.22.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.0/CHANGES.0.22.0.md
@@ -49,6 +49,12 @@
 | [MAPREDUCE-1664](https://issues.apache.org/jira/browse/MAPREDUCE-1664) | Job Acls affect Queue Acls |  Major | security | Ravi Gummadi | Ravi Gummadi |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.0/RELEASENOTES.0.22.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.0/RELEASENOTES.0.22.0.md
index 30368cc60a0..41ffd778bd1 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.0/RELEASENOTES.0.22.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.0/RELEASENOTES.0.22.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.22.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -74,7 +74,7 @@ I have just committed this to trunk and branch-0.22. Thanks Roman!
 
 * [HADOOP-7117](https://issues.apache.org/jira/browse/HADOOP-7117) | *Major* | **Move secondary namenode checkpoint configs from core-default.xml to hdfs-default.xml**
 
-Removed references to the older fs.checkpoint.* properties that resided in core-site.xml
+Removed references to the older fs.checkpoint.\* properties that resided in core-site.xml
 
 
 ---
@@ -208,7 +208,7 @@ Removed thriftfs contrib component.
 
 * [HDFS-1596](https://issues.apache.org/jira/browse/HDFS-1596) | *Major* | **Move secondary namenode checkpoint configs from core-default.xml to hdfs-default.xml**
 
-Removed references to the older fs.checkpoint.* properties that resided in core-site.xml
+Removed references to the older fs.checkpoint.\* properties that resided in core-site.xml
 
 
 ---
@@ -510,6 +510,7 @@ Added a metric to track number of heartbeats processed by the JobTracker.
 
 * [MAPREDUCE-1664](https://issues.apache.org/jira/browse/MAPREDUCE-1664) | *Major* | **Job Acls affect Queue Acls**
 
+<!-- markdown -->
 * Removed aclsEnabled flag from queues configuration files.
 * Removed the configuration property mapreduce.cluster.job-authorization-enabled.
 * Added mapreduce.cluster.acls.enabled as the single configuration property in mapred-default.xml that enables the authorization checks for all job level and queue level operations.
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.1/CHANGES.0.22.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.1/CHANGES.0.22.1.md
index f77dab8c450..ac195f0d864 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.1/CHANGES.0.22.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.1/CHANGES.0.22.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop Changelog
 
-## Release 0.22.1 - Unreleased
+## Release 0.22.1 - Unreleased (as of 2016-03-04)
 
 ### INCOMPATIBLE CHANGES:
 
@@ -27,6 +27,12 @@
 | [HADOOP-6453](https://issues.apache.org/jira/browse/HADOOP-6453) | Hadoop wrapper script shouldn't ignore an existing JAVA\_LIBRARY\_PATH |  Minor | scripts | Chad Metcalf |  |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.1/RELEASENOTES.0.22.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.1/RELEASENOTES.0.22.1.md
index 32b973d6efa..f08f5017c55 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.1/RELEASENOTES.0.22.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.22.1/RELEASENOTES.0.22.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.22.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -32,7 +32,7 @@ Adding support for Kerberos HTTP SPNEGO authentication to the Hadoop web-console
 
 * [HADOOP-6995](https://issues.apache.org/jira/browse/HADOOP-6995) | *Minor* | **Allow wildcards to be used in ProxyUsers configurations**
 
-When configuring proxy users and hosts, the special wildcard value "*" may be specified to match any host or any user.
+When configuring proxy users and hosts, the special wildcard value "\*" may be specified to match any host or any user.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.0/CHANGES.0.23.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.0/CHANGES.0.23.0.md
index e7a65068ec0..cefa86dcb0d 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.0/CHANGES.0.23.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.0/CHANGES.0.23.0.md
@@ -69,6 +69,12 @@
 | [MAPREDUCE-1738](https://issues.apache.org/jira/browse/MAPREDUCE-1738) | MapReduce portion of HADOOP-6728 (ovehaul metrics framework) |  Major | . | Luke Lu | Luke Lu |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.0/RELEASENOTES.0.23.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.0/RELEASENOTES.0.23.0.md
index ffe52ab025d..69e364f27b1 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.0/RELEASENOTES.0.23.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.0/RELEASENOTES.0.23.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.23.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -238,7 +238,7 @@ Adding support for Kerberos HTTP SPNEGO authentication to the Hadoop web-console
 
 * [HADOOP-7117](https://issues.apache.org/jira/browse/HADOOP-7117) | *Major* | **Move secondary namenode checkpoint configs from core-default.xml to hdfs-default.xml**
 
-Removed references to the older fs.checkpoint.* properties that resided in core-site.xml
+Removed references to the older fs.checkpoint.\* properties that resided in core-site.xml
 
 
 ---
@@ -464,7 +464,7 @@ Removed the deprecated fields in DataTransferProtocol.
 
 * [HDFS-1939](https://issues.apache.org/jira/browse/HDFS-1939) | *Major* | **ivy: test conf should not extend common conf**
 
-* Removed duplicated jars in test class path.
+\* Removed duplicated jars in test class path.
 
 
 ---
@@ -562,7 +562,7 @@ Added two configuration properties, dfs.client.block.write.replace-datanode-on-f
 
 * [HDFS-1596](https://issues.apache.org/jira/browse/HDFS-1596) | *Major* | **Move secondary namenode checkpoint configs from core-default.xml to hdfs-default.xml**
 
-Removed references to the older fs.checkpoint.* properties that resided in core-site.xml
+Removed references to the older fs.checkpoint.\* properties that resided in core-site.xml
 
 
 ---
@@ -1064,9 +1064,9 @@ Adds cpu, physical memory, virtual memory and heap usages to TraceBuilder's outp
 * [MAPREDUCE-2037](https://issues.apache.org/jira/browse/MAPREDUCE-2037) | *Major* | **Capturing interim progress times, CPU usage, and memory usage, when tasks reach certain progress thresholds**
 
 Capture intermediate task resource consumption information:
-* Time taken so far
-* CPU load [either at the time the data are taken, or exponentially smoothed]
-* Memory load [also either at the time the data are taken, or exponentially smoothed]
+\* Time taken so far
+\* CPU load [either at the time the data are taken, or exponentially smoothed]
+\* Memory load [also either at the time the data are taken, or exponentially smoothed]
 
 This would be taken at intervals that depend on the task progress plateaus. For example, reducers have three progress ranges - [0-1/3], (1/3-2/3], and (2/3-3/3] - where fundamentally different activities happen. Mappers have different boundaries that are not symmetrically placed [0-9/10], (9/10-1]. Data capture boundaries should coincide with activity boundaries. For the state information capture [CPU and memory] we should average over the covered interval.
 
@@ -1157,8 +1157,8 @@ MapReduce has undergone a complete re-haul in hadoop-0.23 and we now have, what
 The fundamental idea of MRv2 is to split up the two major functionalities of the JobTracker, resource management and job scheduling/monitoring, into separate daemons. The idea is to have a global ResourceManager (RM) and per-application ApplicationMaster (AM).  An application is either a single job in the classical sense of Map-Reduce jobs or a DAG of jobs. The ResourceManager and per-node slave, the NodeManager (NM), form the data-computation framework. The ResourceManager is the ultimate authority that arbitrates resources among all the applications in the system. The per-application ApplicationMaster is, in effect, a framework specific library and is tasked with negotiating resources from the ResourceManager and working with the NodeManager(s) to execute and monitor the tasks.
 
 The ResourceManager has two main components:
-* Scheduler (S)
-* ApplicationsManager (ASM)
+\* Scheduler (S)
+\* ApplicationsManager (ASM)
 
 The Scheduler is responsible for allocating resources to the various running applications subject to familiar constraints of capacities, queues etc. The Scheduler is pure scheduler in the sense that it performs no monitoring or tracking of status for the application. Also, it offers no guarantees on restarting failed tasks either due to application failure or hardware failures. The Scheduler performs its scheduling function based the resource requirements of the applications; it does so based on the abstract notion of a Resource Container which incorporates elements such as memory, cpu, disk, network etc. 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.1/CHANGES.0.23.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.1/CHANGES.0.23.1.md
index 1d69f4e59a2..dd317692922 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.1/CHANGES.0.23.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.1/CHANGES.0.23.1.md
@@ -30,6 +30,12 @@
 | [MAPREDUCE-3720](https://issues.apache.org/jira/browse/MAPREDUCE-3720) | Command line listJobs should not visit each AM |  Major | client, mrv2 | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.1/RELEASENOTES.0.23.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.1/RELEASENOTES.0.23.1.md
index 08c9df02def..569e1edb2a1 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.1/RELEASENOTES.0.23.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.1/RELEASENOTES.0.23.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.23.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -46,7 +46,7 @@ Adding config for MapReduce History Server protocol in hadoop-policy.xml for ser
 
 * [HADOOP-7963](https://issues.apache.org/jira/browse/HADOOP-7963) | *Blocker* | **test failures: TestViewFileSystemWithAuthorityLocalFileSystem and TestViewFileSystemLocalFileSystem**
 
-Fix ViewFS to catch a null canonical service-name and pass tests TestViewFileSystem*
+Fix ViewFS to catch a null canonical service-name and pass tests TestViewFileSystem\*
 
 
 ---
@@ -308,7 +308,7 @@ Fixed TaskHeartbeatHandler to not hold a global lock for all task-updates.
 
 * [MAPREDUCE-3597](https://issues.apache.org/jira/browse/MAPREDUCE-3597) | *Major* | **Provide a way to access other info of history file from Rumentool**
 
-Rumen now provides {{Parsed*}} objects. These objects provide extra information that are not provided by {{Logged*}} objects.
+Rumen now provides {{Parsed\*}} objects. These objects provide extra information that are not provided by {{Logged\*}} objects.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.10/CHANGES.0.23.10.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.10/CHANGES.0.23.10.md
index 82bef03ce6e..75b818f1ce4 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.10/CHANGES.0.23.10.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.10/CHANGES.0.23.10.md
@@ -27,6 +27,12 @@
 | [YARN-707](https://issues.apache.org/jira/browse/YARN-707) | Add user info in the YARN ClientToken |  Blocker | . | Bikas Saha | Jason Lowe |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.10/RELEASENOTES.0.23.10.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.10/RELEASENOTES.0.23.10.md
index f1388d0a7a3..be5dc419101 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.10/RELEASENOTES.0.23.10.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.10/RELEASENOTES.0.23.10.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.23.10 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.11/CHANGES.0.23.11.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.11/CHANGES.0.23.11.md
index 3259d86bc4b..8313a69ce40 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.11/CHANGES.0.23.11.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.11/CHANGES.0.23.11.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.11/RELEASENOTES.0.23.11.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.11/RELEASENOTES.0.23.11.md
index 7fb4718e9cd..a44802ec8bc 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.11/RELEASENOTES.0.23.11.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.11/RELEASENOTES.0.23.11.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.23.11 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.2/CHANGES.0.23.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.2/CHANGES.0.23.2.md
index cd1c26aebf6..37b85a52f5a 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.2/CHANGES.0.23.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.2/CHANGES.0.23.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop Changelog
 
-## Release 0.23.2 - Unreleased
+## Release 0.23.2 - Unreleased (as of 2016-03-04)
 
 ### INCOMPATIBLE CHANGES:
 
@@ -29,6 +29,12 @@
 | [HDFS-2887](https://issues.apache.org/jira/browse/HDFS-2887) | Define a FSVolume interface |  Major | datanode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.2/RELEASENOTES.0.23.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.2/RELEASENOTES.0.23.2.md
index 65915656942..ed372ba0f68 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.2/RELEASENOTES.0.23.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.2/RELEASENOTES.0.23.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.23.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -32,7 +32,7 @@ FsShell mkdir now accepts a -p flag.  Like unix, mkdir -p will not fail if the d
 
 * [HADOOP-8164](https://issues.apache.org/jira/browse/HADOOP-8164) | *Major* | **Handle paths using back slash as path separator for windows only**
 
-This jira only allows providing paths using back slash as separator on Windows. The back slash on *nix system will be used as escape character. The support for paths using back slash as path separator will be removed in HADOOP-8139 in release 23.3.
+This jira only allows providing paths using back slash as separator on Windows. The back slash on \*nix system will be used as escape character. The support for paths using back slash as path separator will be removed in HADOOP-8139 in release 23.3.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.3/CHANGES.0.23.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.3/CHANGES.0.23.3.md
index e997154e617..9b50eafe621 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.3/CHANGES.0.23.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.3/CHANGES.0.23.3.md
@@ -31,6 +31,12 @@
 | [MAPREDUCE-3812](https://issues.apache.org/jira/browse/MAPREDUCE-3812) | Lower default allocation sizes, fix allocation configurations and document them |  Major | mrv2, performance | Vinod Kumar Vavilapalli | Harsh J |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.3/RELEASENOTES.0.23.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.3/RELEASENOTES.0.23.3.md
index b003778a7bc..48e447361b0 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.3/RELEASENOTES.0.23.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.3/RELEASENOTES.0.23.3.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.23.3 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.4/CHANGES.0.23.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.4/CHANGES.0.23.4.md
index eeba2cbbf4a..b9b7eee443f 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.4/CHANGES.0.23.4.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.4/CHANGES.0.23.4.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.4/RELEASENOTES.0.23.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.4/RELEASENOTES.0.23.4.md
index ec7073dd14e..29453f4a0cd 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.4/RELEASENOTES.0.23.4.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.4/RELEASENOTES.0.23.4.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.23.4 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.5/CHANGES.0.23.5.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.5/CHANGES.0.23.5.md
index 56568ab8fb4..0e76124b9e7 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.5/CHANGES.0.23.5.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.5/CHANGES.0.23.5.md
@@ -27,6 +27,12 @@
 | [HDFS-4080](https://issues.apache.org/jira/browse/HDFS-4080) | Add a separate logger for block state change logs to enable turning off those logs |  Major | namenode | Kihwal Lee | Kihwal Lee |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.5/RELEASENOTES.0.23.5.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.5/RELEASENOTES.0.23.5.md
index d8efa4021fd..0d292e9f6bd 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.5/RELEASENOTES.0.23.5.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.5/RELEASENOTES.0.23.5.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.23.5 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/CHANGES.0.23.6.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/CHANGES.0.23.6.md
index 2a34ad72750..6ac205fce14 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/CHANGES.0.23.6.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/CHANGES.0.23.6.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/RELEASENOTES.0.23.6.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/RELEASENOTES.0.23.6.md
index 5038bad8a67..34a87077530 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/RELEASENOTES.0.23.6.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.6/RELEASENOTES.0.23.6.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.23.6 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.7/CHANGES.0.23.7.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.7/CHANGES.0.23.7.md
index ff0352f72ca..d67a6b74b3c 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.7/CHANGES.0.23.7.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.7/CHANGES.0.23.7.md
@@ -27,6 +27,12 @@
 | [HDFS-395](https://issues.apache.org/jira/browse/HDFS-395) | DFS Scalability: Incremental block reports |  Major | datanode, namenode | dhruba borthakur | Tomasz Nykiel |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.7/RELEASENOTES.0.23.7.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.7/RELEASENOTES.0.23.7.md
index 17ff954b881..e367c5d398c 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.7/RELEASENOTES.0.23.7.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.7/RELEASENOTES.0.23.7.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.23.7 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.8/CHANGES.0.23.8.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.8/CHANGES.0.23.8.md
index 707f411a45d..04e8036e392 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.8/CHANGES.0.23.8.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.8/CHANGES.0.23.8.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.8/RELEASENOTES.0.23.8.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.8/RELEASENOTES.0.23.8.md
index b3f8e71779c..719d885661d 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.8/RELEASENOTES.0.23.8.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.8/RELEASENOTES.0.23.8.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.23.8 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.9/CHANGES.0.23.9.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.9/CHANGES.0.23.9.md
index 6d02d85848a..fed8832c0ae 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.9/CHANGES.0.23.9.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.9/CHANGES.0.23.9.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.9/RELEASENOTES.0.23.9.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.9/RELEASENOTES.0.23.9.md
index 81a267fdd34..f4ff14dd8e4 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.9/RELEASENOTES.0.23.9.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.23.9/RELEASENOTES.0.23.9.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.23.9 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.24.0/CHANGES.0.24.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.24.0/CHANGES.0.24.0.md
index 13f09582581..919f4ddecde 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.24.0/CHANGES.0.24.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.24.0/CHANGES.0.24.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop Changelog
 
-## Release 0.24.0 - Unreleased
+## Release 0.24.0 - Unreleased (as of 2016-03-04)
 
 ### INCOMPATIBLE CHANGES:
 
@@ -28,6 +28,12 @@
 | [HADOOP-7507](https://issues.apache.org/jira/browse/HADOOP-7507) | jvm metrics all use the same namespace |  Major | metrics | Jeff Bean | Alejandro Abdelnur |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.24.0/RELEASENOTES.0.24.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.24.0/RELEASENOTES.0.24.0.md
index 7aa2984c867..6c43809e9f3 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.24.0/RELEASENOTES.0.24.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.24.0/RELEASENOTES.0.24.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.24.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.0/CHANGES.0.3.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.0/CHANGES.0.3.0.md
index db6218fc240..a2da3ed68e7 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.0/CHANGES.0.3.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.0/CHANGES.0.3.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.0/RELEASENOTES.0.3.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.0/RELEASENOTES.0.3.0.md
index e648a8ec3a1..50a29956337 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.0/RELEASENOTES.0.3.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.0/RELEASENOTES.0.3.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.3.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.1/CHANGES.0.3.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.1/CHANGES.0.3.1.md
index ba7aebfd170..9bf1d6680ca 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.1/CHANGES.0.3.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.1/CHANGES.0.3.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.1/RELEASENOTES.0.3.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.1/RELEASENOTES.0.3.1.md
index de4e1cd3466..1df1d5e23cc 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.1/RELEASENOTES.0.3.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.1/RELEASENOTES.0.3.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.3.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.2/CHANGES.0.3.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.2/CHANGES.0.3.2.md
index 6b67b0ad05e..dd30d8c9113 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.2/CHANGES.0.3.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.2/CHANGES.0.3.2.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.2/RELEASENOTES.0.3.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.2/RELEASENOTES.0.3.2.md
index de9320f3ed7..38d49ebd44a 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.2/RELEASENOTES.0.3.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.3.2/RELEASENOTES.0.3.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.3.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.4.0/CHANGES.0.4.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.4.0/CHANGES.0.4.0.md
index c5a6a5d19b6..ac6b87d39db 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.4.0/CHANGES.0.4.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.4.0/CHANGES.0.4.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.4.0/RELEASENOTES.0.4.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.4.0/RELEASENOTES.0.4.0.md
index 36576ddef4b..8907b39858f 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.4.0/RELEASENOTES.0.4.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.4.0/RELEASENOTES.0.4.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.4.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.5.0/CHANGES.0.5.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.5.0/CHANGES.0.5.0.md
index 1aeccf97ee9..e7c82447b03 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.5.0/CHANGES.0.5.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.5.0/CHANGES.0.5.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.5.0/RELEASENOTES.0.5.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.5.0/RELEASENOTES.0.5.0.md
index 3fe30f53c35..cc7674a12c2 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.5.0/RELEASENOTES.0.5.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.5.0/RELEASENOTES.0.5.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.5.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.0/CHANGES.0.6.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.0/CHANGES.0.6.0.md
index 5cd65677c90..0e2b7610ed8 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.0/CHANGES.0.6.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.0/CHANGES.0.6.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.0/RELEASENOTES.0.6.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.0/RELEASENOTES.0.6.0.md
index ca86d839ded..105599bd6d4 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.0/RELEASENOTES.0.6.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.0/RELEASENOTES.0.6.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.6.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.1/CHANGES.0.6.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.1/CHANGES.0.6.1.md
index 031aa7fcb65..d044e63e58f 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.1/CHANGES.0.6.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.1/CHANGES.0.6.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.1/RELEASENOTES.0.6.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.1/RELEASENOTES.0.6.1.md
index 39da5b8a7e1..8c6d6664387 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.1/RELEASENOTES.0.6.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.1/RELEASENOTES.0.6.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.6.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.2/CHANGES.0.6.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.2/CHANGES.0.6.2.md
index 858c777ca7f..630387433f3 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.2/CHANGES.0.6.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.2/CHANGES.0.6.2.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.2/RELEASENOTES.0.6.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.2/RELEASENOTES.0.6.2.md
index cd13ea2675b..0adfa37db7a 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.2/RELEASENOTES.0.6.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.6.2/RELEASENOTES.0.6.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.6.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.0/CHANGES.0.7.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.0/CHANGES.0.7.0.md
index 95657c8d4ce..ec979372a61 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.0/CHANGES.0.7.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.0/CHANGES.0.7.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.0/RELEASENOTES.0.7.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.0/RELEASENOTES.0.7.0.md
index 55530fea6f0..e9d43c0a596 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.0/RELEASENOTES.0.7.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.0/RELEASENOTES.0.7.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.7.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.1/CHANGES.0.7.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.1/CHANGES.0.7.1.md
index 9fdf922ea7a..a0a134b0bcf 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.1/CHANGES.0.7.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.1/CHANGES.0.7.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.1/RELEASENOTES.0.7.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.1/RELEASENOTES.0.7.1.md
index b4660b8e94d..5e46d2e27ca 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.1/RELEASENOTES.0.7.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.1/RELEASENOTES.0.7.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.7.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.2/CHANGES.0.7.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.2/CHANGES.0.7.2.md
index 49b17dcbeca..6c84a2aa00a 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.2/CHANGES.0.7.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.2/CHANGES.0.7.2.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.2/RELEASENOTES.0.7.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.2/RELEASENOTES.0.7.2.md
index 747f6dad93c..a93c6b9606b 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.2/RELEASENOTES.0.7.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.7.2/RELEASENOTES.0.7.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.7.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.8.0/CHANGES.0.8.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.8.0/CHANGES.0.8.0.md
index 4e2e9ea66eb..4db1e35d191 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.8.0/CHANGES.0.8.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.8.0/CHANGES.0.8.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.8.0/RELEASENOTES.0.8.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.8.0/RELEASENOTES.0.8.0.md
index 120f6a5f386..a0980d43c9c 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.8.0/RELEASENOTES.0.8.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.8.0/RELEASENOTES.0.8.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.8.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.0/CHANGES.0.9.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.0/CHANGES.0.9.0.md
index d0247a55751..2b0e48c008f 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.0/CHANGES.0.9.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.0/CHANGES.0.9.0.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.0/RELEASENOTES.0.9.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.0/RELEASENOTES.0.9.0.md
index e031d5b18fd..735385d5cc3 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.0/RELEASENOTES.0.9.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.0/RELEASENOTES.0.9.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.9.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.1/CHANGES.0.9.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.1/CHANGES.0.9.1.md
index 925918f9eb6..8a3de806d20 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.1/CHANGES.0.9.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.1/CHANGES.0.9.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.1/RELEASENOTES.0.9.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.1/RELEASENOTES.0.9.1.md
index fad93aeae02..d3c2c3bf222 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.1/RELEASENOTES.0.9.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.1/RELEASENOTES.0.9.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.9.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.2/CHANGES.0.9.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.2/CHANGES.0.9.2.md
index e24821060c6..ab1426fd6df 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.2/CHANGES.0.9.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.2/CHANGES.0.9.2.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.2/RELEASENOTES.0.9.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.2/RELEASENOTES.0.9.2.md
index 5e91e58d774..0d86cbf3d77 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.2/RELEASENOTES.0.9.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/0.9.2/RELEASENOTES.0.9.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  0.9.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.0/CHANGES.1.0.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.0/CHANGES.1.0.0.md
index 3b3542015a0..eb9a3828d33 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.0/CHANGES.1.0.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.0/CHANGES.1.0.0.md
@@ -27,6 +27,12 @@
 | [HDFS-617](https://issues.apache.org/jira/browse/HDFS-617) | Support for non-recursive create() in HDFS |  Major | hdfs-client, namenode | Kan Zhang | Kan Zhang |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.0/RELEASENOTES.1.0.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.0/RELEASENOTES.1.0.0.md
index 0ec8c49b5f9..1aa12cb4417 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.0/RELEASENOTES.1.0.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.0/RELEASENOTES.1.0.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  1.0.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.1/CHANGES.1.0.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.1/CHANGES.1.0.1.md
index 161abc0936f..912958b4f46 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.1/CHANGES.1.0.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.1/CHANGES.1.0.1.md
@@ -28,6 +28,12 @@
 | [HADOOP-7470](https://issues.apache.org/jira/browse/HADOOP-7470) | move up to Jackson 1.8.8 |  Minor | util | Steve Loughran | Enis Soztutar |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.1/RELEASENOTES.1.0.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.1/RELEASENOTES.1.0.1.md
index 1745f2bfb8a..01a464c2a9a 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.1/RELEASENOTES.1.0.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.1/RELEASENOTES.1.0.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  1.0.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.2/CHANGES.1.0.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.2/CHANGES.1.0.2.md
index 7c2cfab475e..7854534c9ed 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.2/CHANGES.1.0.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.2/CHANGES.1.0.2.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.2/RELEASENOTES.1.0.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.2/RELEASENOTES.1.0.2.md
index 5352f62e663..d09f290cc86 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.2/RELEASENOTES.1.0.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.2/RELEASENOTES.1.0.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  1.0.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.3/CHANGES.1.0.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.3/CHANGES.1.0.3.md
index f12cd21ec5b..49b0172db10 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.3/CHANGES.1.0.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.3/CHANGES.1.0.3.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.3/RELEASENOTES.1.0.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.3/RELEASENOTES.1.0.3.md
index 7652dbf157e..e94bbf954f9 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.3/RELEASENOTES.1.0.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.3/RELEASENOTES.1.0.3.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  1.0.3 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.4/CHANGES.1.0.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.4/CHANGES.1.0.4.md
index 6325e46a6bd..bcda2d03654 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.4/CHANGES.1.0.4.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.4/CHANGES.1.0.4.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.4/RELEASENOTES.1.0.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.4/RELEASENOTES.1.0.4.md
index fa14781da61..aaab6637fa0 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.4/RELEASENOTES.1.0.4.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.0.4/RELEASENOTES.1.0.4.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  1.0.4 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.0/CHANGES.1.1.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.0/CHANGES.1.1.0.md
index c4caca7de22..a475bb3e874 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.0/CHANGES.1.1.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.0/CHANGES.1.1.0.md
@@ -35,6 +35,12 @@
 | [HDFS-2617](https://issues.apache.org/jira/browse/HDFS-2617) | Replaced Kerberized SSL for image transfer and fsck with SPNEGO-based solution |  Major | security | Jakob Homan | Jakob Homan |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.0/RELEASENOTES.1.1.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.0/RELEASENOTES.1.1.0.md
index 6caadbff84d..53c7939a266 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.0/RELEASENOTES.1.1.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.0/RELEASENOTES.1.1.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  1.1.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -60,7 +60,7 @@ Append is not supported in Hadoop 1.x. Please upgrade to 2.x if you need append.
 
 * [HADOOP-6995](https://issues.apache.org/jira/browse/HADOOP-6995) | *Minor* | **Allow wildcards to be used in ProxyUsers configurations**
 
-When configuring proxy users and hosts, the special wildcard value "*" may be specified to match any host or any user.
+When configuring proxy users and hosts, the special wildcard value "\*" may be specified to match any host or any user.
 
 
 ---
@@ -87,7 +87,7 @@ Please see hdfs-default.xml for detailed description.
 
 This jira adds a new DataNode state called "stale" at the NameNode. DataNodes are marked as stale if it does not send heartbeat message to NameNode within the timeout configured using the configuration parameter "dfs.namenode.stale.datanode.interval" in seconds (default value is 30 seconds). NameNode picks a stale datanode as the last target to read from when returning block locations for reads.
 
-This feature is by default turned * off *. To turn on the feature, set the HDFS configuration "dfs.namenode.check.stale.datanode" to true.
+This feature is by default turned \* off \*. To turn on the feature, set the HDFS configuration "dfs.namenode.check.stale.datanode" to true.
 
 
 ---
@@ -182,7 +182,7 @@ Fixes the issue of GenerateDistCacheData  job slowness.
 
 * [MAPREDUCE-3597](https://issues.apache.org/jira/browse/MAPREDUCE-3597) | *Major* | **Provide a way to access other info of history file from Rumentool**
 
-Rumen now provides {{Parsed*}} objects. These objects provide extra information that are not provided by {{Logged*}} objects.
+Rumen now provides {{Parsed\*}} objects. These objects provide extra information that are not provided by {{Logged\*}} objects.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.1/CHANGES.1.1.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.1/CHANGES.1.1.1.md
index f2685d4a56b..315a43a1ba4 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.1/CHANGES.1.1.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.1/CHANGES.1.1.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.1/RELEASENOTES.1.1.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.1/RELEASENOTES.1.1.1.md
index c1523c33812..2f0a88a2791 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.1/RELEASENOTES.1.1.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.1/RELEASENOTES.1.1.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  1.1.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.2/CHANGES.1.1.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.2/CHANGES.1.1.2.md
index ab774fb6489..100f23a6f29 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.2/CHANGES.1.1.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.2/CHANGES.1.1.2.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.2/RELEASENOTES.1.1.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.2/RELEASENOTES.1.1.2.md
index 0570d73e6a8..b55f17d37eb 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.2/RELEASENOTES.1.1.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.2/RELEASENOTES.1.1.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  1.1.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.3/CHANGES.1.1.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.3/CHANGES.1.1.3.md
index 8765b233866..86aeb5da0df 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.3/CHANGES.1.1.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.3/CHANGES.1.1.3.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop Changelog
 
-## Release 1.1.3 - Unreleased
+## Release 1.1.3 - Unreleased (as of 2016-03-04)
 
 ### INCOMPATIBLE CHANGES:
 
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.3/RELEASENOTES.1.1.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.3/RELEASENOTES.1.1.3.md
index dfce0e86910..1e229d3e47c 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.3/RELEASENOTES.1.1.3.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.1.3/RELEASENOTES.1.1.3.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  1.1.3 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.0/CHANGES.1.2.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.0/CHANGES.1.2.0.md
index 6c82ffbbf69..ceb86d0ad8a 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.0/CHANGES.1.2.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.0/CHANGES.1.2.0.md
@@ -31,6 +31,12 @@
 | [MAPREDUCE-4629](https://issues.apache.org/jira/browse/MAPREDUCE-4629) | Remove JobHistory.DEBUG\_MODE |  Major | . | Karthik Kambatla | Karthik Kambatla |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.0/RELEASENOTES.1.2.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.0/RELEASENOTES.1.2.0.md
index 9f1e70599e3..3fa573c8361 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.0/RELEASENOTES.1.2.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.0/RELEASENOTES.1.2.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  1.2.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -46,7 +46,7 @@ This patch should be checked in together (or after) with JIRA Hadoop-8469: https
 
 * [HADOOP-8164](https://issues.apache.org/jira/browse/HADOOP-8164) | *Major* | **Handle paths using back slash as path separator for windows only**
 
-This jira only allows providing paths using back slash as separator on Windows. The back slash on *nix system will be used as escape character. The support for paths using back slash as path separator will be removed in HADOOP-8139 in release 23.3.
+This jira only allows providing paths using back slash as separator on Windows. The back slash on \*nix system will be used as escape character. The support for paths using back slash as path separator will be removed in HADOOP-8139 in release 23.3.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.1/CHANGES.1.2.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.1/CHANGES.1.2.1.md
index 84a10aa446d..603e2355e2a 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.1/CHANGES.1.2.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.1/CHANGES.1.2.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.1/RELEASENOTES.1.2.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.1/RELEASENOTES.1.2.1.md
index 8835bae1615..162d1536558 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.1/RELEASENOTES.1.2.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.1/RELEASENOTES.1.2.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  1.2.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.2/CHANGES.1.2.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.2/CHANGES.1.2.2.md
index 936cd811f54..08cf273ecda 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.2/CHANGES.1.2.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.2/CHANGES.1.2.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop Changelog
 
-## Release 1.2.2 - Unreleased
+## Release 1.2.2 - Unreleased (as of 2016-03-04)
 
 ### INCOMPATIBLE CHANGES:
 
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.2/RELEASENOTES.1.2.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.2/RELEASENOTES.1.2.2.md
index 9ecfb2d54d4..55a7f6cd691 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.2/RELEASENOTES.1.2.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.2.2/RELEASENOTES.1.2.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  1.2.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.3.0/CHANGES.1.3.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.3.0/CHANGES.1.3.0.md
index 04f639fa70e..1a126465ef8 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.3.0/CHANGES.1.3.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.3.0/CHANGES.1.3.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop Changelog
 
-## Release 1.3.0 - Unreleased
+## Release 1.3.0 - Unreleased (as of 2016-03-04)
 
 ### INCOMPATIBLE CHANGES:
 
@@ -27,6 +27,12 @@
 | [MAPREDUCE-5777](https://issues.apache.org/jira/browse/MAPREDUCE-5777) | Support utf-8 text with BOM (byte order marker) |  Major | . | bc Wong | zhihai xu |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.3.0/RELEASENOTES.1.3.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.3.0/RELEASENOTES.1.3.0.md
index 76800689d35..a6cf8f80119 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/1.3.0/RELEASENOTES.1.3.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/1.3.0/RELEASENOTES.1.3.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  1.3.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.0-alpha/CHANGES.2.0.0-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.0-alpha/CHANGES.2.0.0-alpha.md
index 52aa432ded5..13179e4820b 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.0-alpha/CHANGES.2.0.0-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.0-alpha/CHANGES.2.0.0-alpha.md
@@ -40,6 +40,12 @@
 | [HDFS-395](https://issues.apache.org/jira/browse/HDFS-395) | DFS Scalability: Incremental block reports |  Major | datanode, namenode | dhruba borthakur | Tomasz Nykiel |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.0-alpha/RELEASENOTES.2.0.0-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.0-alpha/RELEASENOTES.2.0.0-alpha.md
index e013b64b1c4..06edd6d028f 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.0-alpha/RELEASENOTES.2.0.0-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.0-alpha/RELEASENOTES.2.0.0-alpha.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.0.0-alpha Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.1-alpha/CHANGES.2.0.1-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.1-alpha/CHANGES.2.0.1-alpha.md
index acd6e8f9fae..4f2d9ff8397 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.1-alpha/CHANGES.2.0.1-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.1-alpha/CHANGES.2.0.1-alpha.md
@@ -27,6 +27,12 @@
 | [HADOOP-8552](https://issues.apache.org/jira/browse/HADOOP-8552) | Conflict: Same security.log.file for multiple users. |  Major | conf, security | Karthik Kambatla | Karthik Kambatla |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.1-alpha/RELEASENOTES.2.0.1-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.1-alpha/RELEASENOTES.2.0.1-alpha.md
index ca573635493..fc34b58819b 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.1-alpha/RELEASENOTES.2.0.1-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.1-alpha/RELEASENOTES.2.0.1-alpha.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.0.1-alpha Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.2-alpha/CHANGES.2.0.2-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.2-alpha/CHANGES.2.0.2-alpha.md
index a9bbab806e6..1d032c71085 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.2-alpha/CHANGES.2.0.2-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.2-alpha/CHANGES.2.0.2-alpha.md
@@ -44,6 +44,12 @@
 | [MAPREDUCE-3812](https://issues.apache.org/jira/browse/MAPREDUCE-3812) | Lower default allocation sizes, fix allocation configurations and document them |  Major | mrv2, performance | Vinod Kumar Vavilapalli | Harsh J |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.2-alpha/RELEASENOTES.2.0.2-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.2-alpha/RELEASENOTES.2.0.2-alpha.md
index 91d0ddc9fc1..7073417a100 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.2-alpha/RELEASENOTES.2.0.2-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.2-alpha/RELEASENOTES.2.0.2-alpha.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.0.2-alpha Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.3-alpha/CHANGES.2.0.3-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.3-alpha/CHANGES.2.0.3-alpha.md
index 88437955c97..6ec5fbb9edd 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.3-alpha/CHANGES.2.0.3-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.3-alpha/CHANGES.2.0.3-alpha.md
@@ -39,6 +39,12 @@
 | [MAPREDUCE-4123](https://issues.apache.org/jira/browse/MAPREDUCE-4123) | ./mapred groups gives NoClassDefFoundError |  Critical | mrv2 | Nishan Shetty | Devaraj K |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.3-alpha/RELEASENOTES.2.0.3-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.3-alpha/RELEASENOTES.2.0.3-alpha.md
index e8aaca661de..f924b91ad0b 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.3-alpha/RELEASENOTES.2.0.3-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.3-alpha/RELEASENOTES.2.0.3-alpha.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.0.3-alpha Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -167,7 +167,7 @@ Please see hdfs-default.xml documentation corresponding to ""dfs.namenode.stale.
 
 This jira adds a new DataNode state called "stale" at the NameNode. DataNodes are marked as stale if it does not send heartbeat message to NameNode within the timeout configured using the configuration parameter "dfs.namenode.stale.datanode.interval" in seconds (default value is 30 seconds). NameNode picks a stale datanode as the last target to read from when returning block locations for reads.
 
-This feature is by default turned * off *. To turn on the feature, set the HDFS configuration "dfs.namenode.check.stale.datanode" to true.
+This feature is by default turned \* off \*. To turn on the feature, set the HDFS configuration "dfs.namenode.check.stale.datanode" to true.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.4-alpha/CHANGES.2.0.4-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.4-alpha/CHANGES.2.0.4-alpha.md
index ff53af93708..0f1db1efe57 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.4-alpha/CHANGES.2.0.4-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.4-alpha/CHANGES.2.0.4-alpha.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.4-alpha/RELEASENOTES.2.0.4-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.4-alpha/RELEASENOTES.2.0.4-alpha.md
index 453d2a1b4ae..988dbe1c6ec 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.4-alpha/RELEASENOTES.2.0.4-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.4-alpha/RELEASENOTES.2.0.4-alpha.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.0.4-alpha Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.5-alpha/CHANGES.2.0.5-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.5-alpha/CHANGES.2.0.5-alpha.md
index 09e191b0b82..2aab255f46d 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.5-alpha/CHANGES.2.0.5-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.5-alpha/CHANGES.2.0.5-alpha.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.5-alpha/RELEASENOTES.2.0.5-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.5-alpha/RELEASENOTES.2.0.5-alpha.md
index 5ba1cbc597a..9ad4b510444 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.5-alpha/RELEASENOTES.2.0.5-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.5-alpha/RELEASENOTES.2.0.5-alpha.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.0.5-alpha Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.6-alpha/CHANGES.2.0.6-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.6-alpha/CHANGES.2.0.6-alpha.md
index 5047be88939..2383d4aa6cf 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.6-alpha/CHANGES.2.0.6-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.6-alpha/CHANGES.2.0.6-alpha.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.6-alpha/RELEASENOTES.2.0.6-alpha.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.6-alpha/RELEASENOTES.2.0.6-alpha.md
index 6ecfaa99213..8bb549f7834 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.6-alpha/RELEASENOTES.2.0.6-alpha.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.0.6-alpha/RELEASENOTES.2.0.6-alpha.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.0.6-alpha Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.0-beta/CHANGES.2.1.0-beta.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.0-beta/CHANGES.2.1.0-beta.md
index 13c97f8334a..192229f22c0 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.0-beta/CHANGES.2.1.0-beta.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.0-beta/CHANGES.2.1.0-beta.md
@@ -109,6 +109,12 @@
 | [YARN-387](https://issues.apache.org/jira/browse/YARN-387) | Fix inconsistent protocol naming |  Blocker | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.0-beta/RELEASENOTES.2.1.0-beta.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.0-beta/RELEASENOTES.2.1.0-beta.md
index 0dbd6bdfeae..639afd9774c 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.0-beta/RELEASENOTES.2.1.0-beta.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.0-beta/RELEASENOTES.2.1.0-beta.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.1.0-beta Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.1-beta/CHANGES.2.1.1-beta.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.1-beta/CHANGES.2.1.1-beta.md
index 245bdd46cf7..1e7747ef6c2 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.1-beta/CHANGES.2.1.1-beta.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.1-beta/CHANGES.2.1.1-beta.md
@@ -29,6 +29,12 @@
 | [YARN-707](https://issues.apache.org/jira/browse/YARN-707) | Add user info in the YARN ClientToken |  Blocker | . | Bikas Saha | Jason Lowe |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.1-beta/RELEASENOTES.2.1.1-beta.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.1-beta/RELEASENOTES.2.1.1-beta.md
index db2f17012c0..c1dd56801dd 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.1-beta/RELEASENOTES.2.1.1-beta.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.1.1-beta/RELEASENOTES.2.1.1-beta.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.1.1-beta Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.0/CHANGES.2.2.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.0/CHANGES.2.2.0.md
index e70a79a3239..e47ecd8c36b 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.0/CHANGES.2.2.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.0/CHANGES.2.2.0.md
@@ -29,6 +29,12 @@
 | [YARN-1228](https://issues.apache.org/jira/browse/YARN-1228) | Clean up Fair Scheduler configuration loading |  Major | scheduler | Sandy Ryza | Sandy Ryza |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.0/RELEASENOTES.2.2.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.0/RELEASENOTES.2.2.0.md
index 301e0c6324b..5132927d845 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.0/RELEASENOTES.2.2.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.0/RELEASENOTES.2.2.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.2.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.1/CHANGES.2.2.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.1/CHANGES.2.2.1.md
index 1f7eb2c927a..45844860013 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.1/CHANGES.2.2.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.1/CHANGES.2.2.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop Changelog
 
-## Release 2.2.1 - Unreleased
+## Release 2.2.1 - Unreleased (as of 2016-03-04)
 
 ### INCOMPATIBLE CHANGES:
 
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.1/RELEASENOTES.2.2.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.1/RELEASENOTES.2.2.1.md
index b4d1b73c925..ae5b29c72b4 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.1/RELEASENOTES.2.2.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.2.1/RELEASENOTES.2.2.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.2.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.3.0/CHANGES.2.3.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.3.0/CHANGES.2.3.0.md
index bf50e3224fc..71d6e772455 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.3.0/CHANGES.2.3.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.3.0/CHANGES.2.3.0.md
@@ -27,6 +27,12 @@
 | [HDFS-4997](https://issues.apache.org/jira/browse/HDFS-4997) | libhdfs doesn't return correct error codes in most cases |  Major | libhdfs | Colin Patrick McCabe | Colin Patrick McCabe |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
@@ -34,7 +40,7 @@
 | [HADOOP-10047](https://issues.apache.org/jira/browse/HADOOP-10047) | Add a directbuffer Decompressor API to hadoop |  Major | io | Gopal V | Gopal V |
 | [HADOOP-9848](https://issues.apache.org/jira/browse/HADOOP-9848) | Create a MiniKDC for use with security testing |  Major | security, test | Wei Yan | Wei Yan |
 | [HADOOP-9618](https://issues.apache.org/jira/browse/HADOOP-9618) | Add thread which detects JVM pauses |  Major | util | Todd Lipcon | Todd Lipcon |
-| [HADOOP-9432](https://issues.apache.org/jira/browse/HADOOP-9432) | Add support for markdown .md files in site documentation |  Minor | build, documentation | Steve Loughran |  |
+| [HADOOP-9432](https://issues.apache.org/jira/browse/HADOOP-9432) | Add support for markdown .md files in site documentation |  Minor | build, documentation | Steve Loughran | Steve Loughran |
 | [HADOOP-8545](https://issues.apache.org/jira/browse/HADOOP-8545) | Filesystem Implementation for OpenStack Swift |  Major | fs | Tim Miller | Dmitry Mezhensky |
 | [HDFS-5703](https://issues.apache.org/jira/browse/HDFS-5703) | Add support for HTTPS and swebhdfs to HttpFS |  Major | webhdfs | Alejandro Abdelnur | Alejandro Abdelnur |
 | [HDFS-5260](https://issues.apache.org/jira/browse/HDFS-5260) | Merge zero-copy memory-mapped HDFS client reads to trunk and branch-2. |  Major | hdfs-client, libhdfs | Chris Nauroth | Chris Nauroth |
@@ -428,6 +434,7 @@
 | [YARN-1454](https://issues.apache.org/jira/browse/YARN-1454) | TestRMRestart.testRMDelegationTokenRestoredOnRMRestart is failing intermittently |  Critical | . | Jian He | Karthik Kambatla |
 | [YARN-1451](https://issues.apache.org/jira/browse/YARN-1451) | TestResourceManager relies on the scheduler assigning multiple containers in a single node update |  Minor | . | Sandy Ryza | Sandy Ryza |
 | [YARN-1450](https://issues.apache.org/jira/browse/YARN-1450) | TestUnmanagedAMLauncher#testDSShell fails on trunk |  Major | applications/distributed-shell | Akira AJISAKA | Binglin Chang |
+| [YARN-1438](https://issues.apache.org/jira/browse/YARN-1438) | When a container fails, the text of the exception isn't included in the diagnostics |  Major | nodemanager | Steve Loughran | Steve Loughran |
 | [YARN-1435](https://issues.apache.org/jira/browse/YARN-1435) | Distributed Shell should not run other commands except "sh", and run the custom script at the same time. |  Major | applications/distributed-shell | Tassapol Athiapinya | Xuan Gong |
 | [YARN-1425](https://issues.apache.org/jira/browse/YARN-1425) | TestRMRestart fails because MockRM.waitForState(AttemptId) uses current attempt instead of the attempt passed as argument |  Major | . | Omkar Vinit Joshi | Omkar Vinit Joshi |
 | [YARN-1419](https://issues.apache.org/jira/browse/YARN-1419) | TestFifoScheduler.testAppAttemptMetrics fails intermittently under jdk7 |  Minor | scheduler | Jonathan Eagles | Jonathan Eagles |
@@ -648,8 +655,8 @@
 | [YARN-427](https://issues.apache.org/jira/browse/YARN-427) | Coverage fix for org.apache.hadoop.yarn.server.api.\* |  Major | . | Aleksey Gorshkov | Aleksey Gorshkov |
 | [YARN-425](https://issues.apache.org/jira/browse/YARN-425) | coverage fix for yarn api |  Major | . | Aleksey Gorshkov | Aleksey Gorshkov |
 | [YARN-353](https://issues.apache.org/jira/browse/YARN-353) | Add Zookeeper-based store implementation for RMStateStore |  Major | resourcemanager | Hitesh Shah | Karthik Kambatla |
-| [YARN-312](https://issues.apache.org/jira/browse/YARN-312) | Add updateNodeResource in ResourceManagerAdministrationProtocol |  Major | api | Junping Du | Junping Du |
-| [YARN-311](https://issues.apache.org/jira/browse/YARN-311) | Dynamic node resource configuration: core scheduler changes |  Major | resourcemanager, scheduler | Junping Du | Junping Du |
+| [YARN-312](https://issues.apache.org/jira/browse/YARN-312) | Add updateNodeResource in ResourceManagerAdministrationProtocol |  Major | api, graceful | Junping Du | Junping Du |
+| [YARN-311](https://issues.apache.org/jira/browse/YARN-311) | Dynamic node resource configuration: core scheduler changes |  Major | graceful, resourcemanager, scheduler | Junping Du | Junping Du |
 | [YARN-7](https://issues.apache.org/jira/browse/YARN-7) | Add support for DistributedShell to ask for CPUs along with memory |  Major | . | Arun C Murthy | Junping Du |
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.3.0/RELEASENOTES.2.3.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.3.0/RELEASENOTES.2.3.0.md
index 103cf9641c9..43dc922cfc5 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.3.0/RELEASENOTES.2.3.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.3.0/RELEASENOTES.2.3.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.3.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -39,6 +39,7 @@ The 'du' (disk usage command from Unix) script refresh monitor is now configurab
 
 * [HADOOP-8545](https://issues.apache.org/jira/browse/HADOOP-8545) | *Major* | **Filesystem Implementation for OpenStack Swift**
 
+<!-- markdown -->
 Added file system implementation for OpenStack Swift.
 There are two implementation: block and native (similar to Amazon S3 integration).
 Data locality issue solved by patch in Swift, commit procedure to OpenStack is in progress.
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.0/CHANGES.2.4.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.0/CHANGES.2.4.0.md
index 78bc092b981..06e9c9b23f0 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.0/CHANGES.2.4.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.0/CHANGES.2.4.0.md
@@ -33,6 +33,12 @@
 | [MAPREDUCE-5036](https://issues.apache.org/jira/browse/MAPREDUCE-5036) | Default shuffle handler port should not be 8080 |  Major | . | Sandy Ryza | Sandy Ryza |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
@@ -392,6 +398,7 @@
 | [YARN-1719](https://issues.apache.org/jira/browse/YARN-1719) | ATSWebServices produces jersey warnings |  Major | . | Billie Rinaldi | Billie Rinaldi |
 | [YARN-1717](https://issues.apache.org/jira/browse/YARN-1717) | Enable offline deletion of entries in leveldb timeline store |  Major | . | Billie Rinaldi | Billie Rinaldi |
 | [YARN-1706](https://issues.apache.org/jira/browse/YARN-1706) | Create an utility function to dump timeline records to json |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-1705](https://issues.apache.org/jira/browse/YARN-1705) | Reset cluster-metrics on transition to standby |  Major | resourcemanager | Karthik Kambatla | Rohith Sharma K S |
 | [YARN-1704](https://issues.apache.org/jira/browse/YARN-1704) | Review LICENSE and NOTICE to reflect new levelDB releated libraries being used |  Blocker | . | Billie Rinaldi | Billie Rinaldi |
 | [YARN-1698](https://issues.apache.org/jira/browse/YARN-1698) | Replace MemoryApplicationTimelineStore with LeveldbApplicationTimelineStore as default |  Major | . | Zhijie Shen | Zhijie Shen |
 | [YARN-1690](https://issues.apache.org/jira/browse/YARN-1690) | Sending timeline entities+events from Distributed shell |  Major | . | Mayank Bansal | Mayank Bansal |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.0/RELEASENOTES.2.4.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.0/RELEASENOTES.2.4.0.md
index 63fbfe4ae54..a86f1e04295 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.0/RELEASENOTES.2.4.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.0/RELEASENOTES.2.4.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.4.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.1/CHANGES.2.4.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.1/CHANGES.2.4.1.md
index 48d94802b98..9ad16977d52 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.1/CHANGES.2.4.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.1/CHANGES.2.4.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.1/RELEASENOTES.2.4.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.1/RELEASENOTES.2.4.1.md
index 0425a58eee9..ad1b358065d 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.1/RELEASENOTES.2.4.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.1/RELEASENOTES.2.4.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.4.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.0/CHANGES.2.5.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.0/CHANGES.2.5.0.md
index 82f8878cc4c..f62f96b3d82 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.0/CHANGES.2.5.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.0/CHANGES.2.5.0.md
@@ -31,6 +31,12 @@
 | [YARN-2107](https://issues.apache.org/jira/browse/YARN-2107) | Refactor timeline classes into server.timeline package |  Major | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
@@ -467,7 +473,7 @@
 | [HADOOP-10426](https://issues.apache.org/jira/browse/HADOOP-10426) | CreateOpts.getOpt(..) should declare with generic type argument |  Minor | fs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
 | [HADOOP-10279](https://issues.apache.org/jira/browse/HADOOP-10279) | Create multiplexer, a requirement for the fair queue |  Major | . | Chris Li | Chris Li |
 | [HADOOP-10104](https://issues.apache.org/jira/browse/HADOOP-10104) | Update jackson to 1.9.13 |  Minor | build | Steve Loughran | Akira AJISAKA |
-| [HADOOP-9712](https://issues.apache.org/jira/browse/HADOOP-9712) | Write contract tests for FTP filesystem, fix places where it breaks |  Minor | fs/s3 | Steve Loughran |  |
+| [HADOOP-9712](https://issues.apache.org/jira/browse/HADOOP-9712) | Write contract tests for FTP filesystem, fix places where it breaks |  Minor | fs/s3 | Steve Loughran | Steve Loughran |
 | [HADOOP-9711](https://issues.apache.org/jira/browse/HADOOP-9711) | Write contract tests for S3Native; fix places where it breaks |  Minor | fs/s3 | Steve Loughran | Steve Loughran |
 | [HADOOP-9371](https://issues.apache.org/jira/browse/HADOOP-9371) | Define Semantics of FileSystem more rigorously |  Major | fs | Steve Loughran | Steve Loughran |
 | [HDFS-6562](https://issues.apache.org/jira/browse/HDFS-6562) | Refactor rename() in FSDirectory |  Minor | namenode | Haohui Mai | Haohui Mai |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.0/RELEASENOTES.2.5.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.0/RELEASENOTES.2.5.0.md
index 6f243580c1c..43fb3fa793f 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.0/RELEASENOTES.2.5.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.0/RELEASENOTES.2.5.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.5.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -57,20 +57,6 @@ Add getUGIFromSubject to leverage an external kerberos authentication
 Remove MRv1 settings from hadoop-metrics2.properties, add YARN settings instead.
 
 
----
-
-* [HDFS-6471](https://issues.apache.org/jira/browse/HDFS-6471) | *Major* | **Make moveFromLocal CLI testcases to be non-disruptive**
-
-Committed to trunk and merged into branch-2. Thanks Dasha!
-
-
----
-
-* [HDFS-6297](https://issues.apache.org/jira/browse/HDFS-6297) | *Major* | **Add CLI testcases to reflect new features of dfs and dfsadmin**
-
-Committed to the trunk and branch-2. Thanks Dasha!
-
-
 ---
 
 * [HDFS-6293](https://issues.apache.org/jira/browse/HDFS-6293) | *Blocker* | **Issues with OIV processing PB-based fsimages**
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.1/CHANGES.2.5.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.1/CHANGES.2.5.1.md
index 9c8e4b72c1a..ee536493ad8 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.1/CHANGES.2.5.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.1/CHANGES.2.5.1.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.1/RELEASENOTES.2.5.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.1/RELEASENOTES.2.5.1.md
index ea5e7506355..1eb0b2a4908 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.1/RELEASENOTES.2.5.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.1/RELEASENOTES.2.5.1.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.5.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.2/CHANGES.2.5.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.2/CHANGES.2.5.2.md
index 34063598e29..426a1074fef 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.2/CHANGES.2.5.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.2/CHANGES.2.5.2.md
@@ -26,6 +26,12 @@
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.2/RELEASENOTES.2.5.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.2/RELEASENOTES.2.5.2.md
index 7348c5298bb..4734acfb9ff 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.2/RELEASENOTES.2.5.2.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.5.2/RELEASENOTES.2.5.2.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.5.2 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.0/CHANGES.2.6.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.0/CHANGES.2.6.0.md
index 85098fec9c9..c4ce70e0ea7 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.0/CHANGES.2.6.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.0/CHANGES.2.6.0.md
@@ -30,6 +30,12 @@
 | [YARN-668](https://issues.apache.org/jira/browse/YARN-668) | TokenIdentifier serialization should consider Unknown fields |  Blocker | . | Siddharth Seth | Junping Du |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
@@ -120,7 +126,6 @@
 | [HADOOP-10696](https://issues.apache.org/jira/browse/HADOOP-10696) | Add optional attributes to KeyProvider Options and Metadata |  Major | security | Alejandro Abdelnur | Alejandro Abdelnur |
 | [HADOOP-10695](https://issues.apache.org/jira/browse/HADOOP-10695) | KMSClientProvider should respect a configurable timeout. |  Major | . | Andrew Wang | Mike Yoder |
 | [HADOOP-10675](https://issues.apache.org/jira/browse/HADOOP-10675) | Add server-side encryption functionality to s3a |  Major | fs/s3 | David S. Wang | David S. Wang |
-| [HADOOP-10620](https://issues.apache.org/jira/browse/HADOOP-10620) | /docs/current doesn't point to the latest version 2.4.0 |  Major | documentation | Jacek Laskowski |  |
 | [HADOOP-10610](https://issues.apache.org/jira/browse/HADOOP-10610) | Upgrade S3n fs.s3.buffer.dir to support multi directories |  Minor | fs/s3 | Ted Malaska | Ted Malaska |
 | [HADOOP-10433](https://issues.apache.org/jira/browse/HADOOP-10433) | Key Management Server based on KeyProvider API |  Major | security | Alejandro Abdelnur | Alejandro Abdelnur |
 | [HADOOP-10432](https://issues.apache.org/jira/browse/HADOOP-10432) | Refactor SSLFactory to expose static method to determine HostnameVerifier |  Major | security | Alejandro Abdelnur | Alejandro Abdelnur |
@@ -132,7 +137,7 @@
 | [HADOOP-10373](https://issues.apache.org/jira/browse/HADOOP-10373) | create tools/hadoop-amazon for aws/EMR support |  Major | fs/s3 | Steve Loughran | Steve Loughran |
 | [HADOOP-10335](https://issues.apache.org/jira/browse/HADOOP-10335) | An ip whilelist based implementation to resolve Sasl properties per connection |  Major | . | Benoy Antony | Benoy Antony |
 | [HADOOP-10231](https://issues.apache.org/jira/browse/HADOOP-10231) | Add some components in Native Libraries document |  Minor | documentation | Akira AJISAKA | Akira AJISAKA |
-| [HADOOP-9540](https://issues.apache.org/jira/browse/HADOOP-9540) | Expose the InMemoryS3 and S3N FilesystemStores implementations for Unit testing. |  Minor | fs/s3, test | Hari |  |
+| [HADOOP-9540](https://issues.apache.org/jira/browse/HADOOP-9540) | Expose the InMemoryS3 and S3N FilesystemStores implementations for Unit testing. |  Minor | fs/s3, test | Hari | Hari |
 | [HADOOP-9457](https://issues.apache.org/jira/browse/HADOOP-9457) | add an SCM-ignored XML filename to keep secrets in (auth-keys.xml?) |  Minor | build | Steve Loughran |  |
 | [HADOOP-8896](https://issues.apache.org/jira/browse/HADOOP-8896) | Javadoc points to Wrong Reader and Writer classes in SequenceFile |  Trivial | documentation, io | Timothy Mann | Ray Chiang |
 | [HADOOP-8815](https://issues.apache.org/jira/browse/HADOOP-8815) | RandomDatum overrides equals(Object) but no hashCode() |  Minor | test | Brandon Li | Brandon Li |
@@ -234,7 +239,7 @@
 | [YARN-1954](https://issues.apache.org/jira/browse/YARN-1954) | Add waitFor to AMRMClient(Async) |  Major | client | Zhijie Shen | Tsuyoshi Ozawa |
 | [YARN-1918](https://issues.apache.org/jira/browse/YARN-1918) | Typo in description and error message for 'yarn.resourcemanager.cluster-id' |  Trivial | . | Devaraj K | Anandha L Ranganathan |
 | [YARN-1769](https://issues.apache.org/jira/browse/YARN-1769) | CapacityScheduler:  Improve reservations |  Major | capacityscheduler | Thomas Graves | Thomas Graves |
-| [YARN-666](https://issues.apache.org/jira/browse/YARN-666) | [Umbrella] Support rolling upgrades in YARN |  Major | . | Siddharth Seth |  |
+| [YARN-666](https://issues.apache.org/jira/browse/YARN-666) | [Umbrella] Support rolling upgrades in YARN |  Major | graceful, rolling upgrade | Siddharth Seth |  |
 
 
 ### BUG FIXES:
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.0/RELEASENOTES.2.6.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.0/RELEASENOTES.2.6.0.md
index 756938e5445..064d74d1529 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.0/RELEASENOTES.2.6.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.0/RELEASENOTES.2.6.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.6.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -42,13 +42,6 @@ The MetricsSystem abstract class has added a new abstract method, unregisterSour
 Remove unnecessary synchronized blocks from Snappy/Zlib codecs.
 
 
----
-
-* [HADOOP-10620](https://issues.apache.org/jira/browse/HADOOP-10620) | *Major* | **/docs/current doesn't point to the latest version 2.4.0**
-
-Verified http://hadoop.apache.org/docs/current/ link now point to current release (v2.6.0).
-
-
 ---
 
 * [HADOOP-10583](https://issues.apache.org/jira/browse/HADOOP-10583) | *Minor* | **bin/hadoop key throws NPE with no args and assorted other fixups**
@@ -64,13 +57,6 @@ with no args would throw an NPE.
 Fix of inappropriate test of delete functionality.
 
 
----
-
-* [HADOOP-10201](https://issues.apache.org/jira/browse/HADOOP-10201) | *Major* | **Add Listing Support to Key Management APIs**
-
-I just committed this. Thanks, Larry!
-
-
 ---
 
 * [HADOOP-8944](https://issues.apache.org/jira/browse/HADOOP-8944) | *Trivial* | **Shell command fs -count should include human readable option**
@@ -104,20 +90,6 @@ The maximum number of arrays allowed for each array length.  Default is 2048.
 The time period in milliseconds that the allocation count for each array length is reset to zero if there is no increment.  Default is 10,000ms, i.e. 10 seconds.
 
 
----
-
-* [HDFS-7091](https://issues.apache.org/jira/browse/HDFS-7091) | *Minor* | **Add forwarding constructor for INodeFile for existing callers**
-
-Thanks Nicholas! Revised title and committed to the feature branch.
-
-
----
-
-* [HDFS-7046](https://issues.apache.org/jira/browse/HDFS-7046) | *Critical* | **HA NN can NPE upon transition to active**
-
-Thanks for the reviews, gentlemen. It's been committed to trunk and branch-2.
-
-
 ---
 
 * [HDFS-6606](https://issues.apache.org/jira/browse/HDFS-6606) | *Major* | **Optimize HDFS Encrypted Transport performance**
@@ -153,13 +125,6 @@ SASL now can be used to secure the DataTransferProtocol, which transfers file bl
 The libhdfs C API is now supported on Windows.
 
 
----
-
-* [YARN-2830](https://issues.apache.org/jira/browse/YARN-2830) | *Blocker* | **Add backwords compatible ContainerId.newInstance constructor for use within Tez Local Mode**
-
-I just committed this. Thanks [~jeagles] for the patch and [~ozawa] for the reviews!
-
-
 ---
 
 * [YARN-2615](https://issues.apache.org/jira/browse/YARN-2615) | *Blocker* | **ClientToAMTokenIdentifier and DelegationTokenIdentifier should allow extended fields**
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.1/CHANGES.2.6.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.1/CHANGES.2.6.1.md
new file mode 100644
index 00000000000..c5820aab33f
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.1/CHANGES.2.6.1.md
@@ -0,0 +1,228 @@
+
+<!---
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+-->
+# Apache Hadoop Changelog
+
+## Release 2.6.1 - 2015-09-23
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-12280](https://issues.apache.org/jira/browse/HADOOP-12280) | Skip unit tests based on maven profile rather than NativeCodeLoader.isNativeCodeLoaded |  Minor | test | Masatake Iwasaki | Masatake Iwasaki |
+| [HADOOP-11812](https://issues.apache.org/jira/browse/HADOOP-11812) | Implement listLocatedStatus for ViewFileSystem to speed up split calculation |  Blocker | fs | Gera Shegalov | Gera Shegalov |
+| [HADOOP-11506](https://issues.apache.org/jira/browse/HADOOP-11506) | Configuration variable expansion regex expensive for long values |  Major | conf | Dmitriy V. Ryaboy | Gera Shegalov |
+| [HADOOP-11466](https://issues.apache.org/jira/browse/HADOOP-11466) | FastByteComparisons: do not use UNSAFE\_COMPARER on the SPARC architecture because it is slower there |  Minor | io, performance, util | Suman Somasundar | Suman Somasundar |
+| [HADOOP-7139](https://issues.apache.org/jira/browse/HADOOP-7139) | Allow appending to existing SequenceFiles |  Major | io | Stephen Rose | Kanaka Kumar Avvaru |
+| [HDFS-8384](https://issues.apache.org/jira/browse/HDFS-8384) | Allow NN to startup if there are files having a lease but are not under construction |  Minor | namenode | Tsz Wo Nicholas Sze | Jing Zhao |
+| [HDFS-7579](https://issues.apache.org/jira/browse/HDFS-7579) | Improve log reporting during block report rpc failure |  Minor | datanode | Charles Lamb | Charles Lamb |
+| [HDFS-7531](https://issues.apache.org/jira/browse/HDFS-7531) | Improve the concurrent access on FsVolumeList |  Major | datanode | Lei (Eddy) Xu | Lei (Eddy) Xu |
+| [HDFS-7446](https://issues.apache.org/jira/browse/HDFS-7446) | HDFS inotify should have the ability to determine what txid it has read up to |  Major | hdfs-client | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-7314](https://issues.apache.org/jira/browse/HDFS-7314) | When the DFSClient lease cannot be renewed, abort open-for-write files rather than the entire DFSClient |  Major | . | Ming Ma | Ming Ma |
+| [HDFS-7278](https://issues.apache.org/jira/browse/HDFS-7278) | Add a command that allows sysadmins to manually trigger full block reports from a DN |  Major | datanode | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-7182](https://issues.apache.org/jira/browse/HDFS-7182) | JMX metrics aren't accessible when NN is busy |  Major | . | Ming Ma | Ming Ma |
+| [MAPREDUCE-6267](https://issues.apache.org/jira/browse/MAPREDUCE-6267) | Refactor JobSubmitter#copyAndConfigureFiles into it's own class |  Minor | . | Chris Trezzo | Chris Trezzo |
+| [YARN-3978](https://issues.apache.org/jira/browse/YARN-3978) | Configurably turn off the saving of container info in Generic AHS |  Major | timelineserver, yarn | Eric Payne | Eric Payne |
+| [YARN-3249](https://issues.apache.org/jira/browse/YARN-3249) | Add a "kill application" button to Resource Manager's Web UI |  Minor | resourcemanager | Ryu Kobayashi | Ryu Kobayashi |
+| [YARN-3248](https://issues.apache.org/jira/browse/YARN-3248) | Display count of nodes blacklisted by apps in the web UI |  Major | capacityscheduler, resourcemanager | Varun Vasudev | Varun Vasudev |
+| [YARN-3230](https://issues.apache.org/jira/browse/YARN-3230) | Clarify application states on the web UI |  Major | . | Jian He | Jian He |
+| [YARN-2301](https://issues.apache.org/jira/browse/YARN-2301) | Improve yarn container command |  Major | . | Jian He | Naganarasimha G R |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-11934](https://issues.apache.org/jira/browse/HADOOP-11934) | Use of JavaKeyStoreProvider in LdapGroupsMapping causes infinite loop |  Blocker | security | Mike Yoder | Larry McCay |
+| [HADOOP-11932](https://issues.apache.org/jira/browse/HADOOP-11932) |  MetricsSinkAdapter hangs when being stopped |  Critical | . | Jian He | Brahma Reddy Battula |
+| [HADOOP-11802](https://issues.apache.org/jira/browse/HADOOP-11802) | DomainSocketWatcher thread terminates sometimes after there is an I/O error during requestShortCircuitShm |  Major | . | Eric Payne | Colin Patrick McCabe |
+| [HADOOP-11730](https://issues.apache.org/jira/browse/HADOOP-11730) | Regression: s3n read failure recovery broken |  Major | fs/s3 | Takenori Sato | Takenori Sato |
+| [HADOOP-11674](https://issues.apache.org/jira/browse/HADOOP-11674) | oneByteBuf in CryptoInputStream and CryptoOutputStream should be non static |  Critical | io | Sean Busbey | Sean Busbey |
+| [HADOOP-11604](https://issues.apache.org/jira/browse/HADOOP-11604) | Prevent ConcurrentModificationException while closing domain sockets during shutdown of DomainSocketWatcher thread. |  Critical | net | Liang Xie | Chris Nauroth |
+| [HADOOP-11491](https://issues.apache.org/jira/browse/HADOOP-11491) | HarFs incorrectly declared as requiring an authority |  Critical | fs | Gera Shegalov | Brahma Reddy Battula |
+| [HADOOP-11482](https://issues.apache.org/jira/browse/HADOOP-11482) | Use correct UGI when KMSClientProvider is called by a proxy user |  Major | . | Arun Suresh | Arun Suresh |
+| [HADOOP-11368](https://issues.apache.org/jira/browse/HADOOP-11368) | Fix SSLFactory truststore reloader thread leak in KMSClientProvider |  Major | kms | Arun Suresh | Arun Suresh |
+| [HADOOP-11350](https://issues.apache.org/jira/browse/HADOOP-11350) | The size of header buffer of HttpServer is too small when HTTPS is enabled |  Major | security | Benoy Antony | Benoy Antony |
+| [HADOOP-11343](https://issues.apache.org/jira/browse/HADOOP-11343) | Overflow is not properly handled in caclulating final iv for AES CTR |  Blocker | security | Jerry Chen | Jerry Chen |
+| [HADOOP-11333](https://issues.apache.org/jira/browse/HADOOP-11333) | Fix deadlock in DomainSocketWatcher when the notification pipe is full |  Major | . | zhaoyunjiong | zhaoyunjiong |
+| [HADOOP-11316](https://issues.apache.org/jira/browse/HADOOP-11316) | "mvn package -Pdist,docs -DskipTests -Dtar" fails because of non-ascii characters |  Blocker | . | Tsuyoshi Ozawa | Tsuyoshi Ozawa |
+| [HADOOP-11295](https://issues.apache.org/jira/browse/HADOOP-11295) | RPC Server Reader thread can't shutdown if RPCCallQueue is full |  Major | . | Ming Ma | Ming Ma |
+| [HADOOP-11238](https://issues.apache.org/jira/browse/HADOOP-11238) | Update the NameNode's Group Cache in the background when possible |  Minor | . | Chris Li | Chris Li |
+| [HADOOP-10786](https://issues.apache.org/jira/browse/HADOOP-10786) | Fix UGI#reloginFromKeytab on Java 8 |  Major | security | Tobi Vollebregt | Stephen Chu |
+| [HADOOP-8151](https://issues.apache.org/jira/browse/HADOOP-8151) | Error handling in snappy decompressor throws invalid exceptions |  Major | io, native | Todd Lipcon | Matt Foley |
+| [HDFS-8863](https://issues.apache.org/jira/browse/HDFS-8863) | The remaining space check in BlockPlacementPolicyDefault is flawed |  Critical | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-8846](https://issues.apache.org/jira/browse/HDFS-8846) | Add a unit test for INotify functionality across a layout version upgrade |  Major | namenode | Zhe Zhang | Zhe Zhang |
+| [HDFS-8486](https://issues.apache.org/jira/browse/HDFS-8486) | DN startup may cause severe data loss |  Blocker | datanode | Daryn Sharp | Daryn Sharp |
+| [HDFS-8480](https://issues.apache.org/jira/browse/HDFS-8480) | Fix performance and timeout issues in HDFS-7929 by using hard-links to preserve old edit logs instead of copying them |  Critical | . | Zhe Zhang | Zhe Zhang |
+| [HDFS-8431](https://issues.apache.org/jira/browse/HDFS-8431) | hdfs crypto class not found in Windows |  Critical | scripts | Sumana Sathish | Anu Engineer |
+| [HDFS-8404](https://issues.apache.org/jira/browse/HDFS-8404) | Pending block replication can get stuck using older genstamp |  Major | namenode | Nathan Roberts | Nathan Roberts |
+| [HDFS-8270](https://issues.apache.org/jira/browse/HDFS-8270) | create() always retried with hardcoded timeout when file already exists with open lease |  Major | hdfs-client | Andrey Stepachev | J.Andreina |
+| [HDFS-8245](https://issues.apache.org/jira/browse/HDFS-8245) | Standby namenode doesn't process DELETED\_BLOCK if the add block request is in edit log. |  Major | . | Rushabh S Shah | Rushabh S Shah |
+| [HDFS-8219](https://issues.apache.org/jira/browse/HDFS-8219) | setStoragePolicy with folder behavior is different after cluster restart |  Major | . | Peter Shi | Surendra Singh Lilhore |
+| [HDFS-8127](https://issues.apache.org/jira/browse/HDFS-8127) | NameNode Failover during HA upgrade can cause DataNode to finalize upgrade |  Blocker | ha | Jing Zhao | Jing Zhao |
+| [HDFS-8072](https://issues.apache.org/jira/browse/HDFS-8072) | Reserved RBW space is not released if client terminates while writing block |  Major | datanode | Arpit Agarwal | Arpit Agarwal |
+| [HDFS-8070](https://issues.apache.org/jira/browse/HDFS-8070) | Pre-HDFS-7915 DFSClient cannot use short circuit on post-HDFS-7915 DataNode |  Blocker | caching | Gopal V | Colin Patrick McCabe |
+| [HDFS-8046](https://issues.apache.org/jira/browse/HDFS-8046) | Allow better control of getContentSummary |  Major | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-7999](https://issues.apache.org/jira/browse/HDFS-7999) | FsDatasetImpl#createTemporary sometimes holds the FSDatasetImpl lock for a very long time |  Major | . | zhouyingchao | zhouyingchao |
+| [HDFS-7980](https://issues.apache.org/jira/browse/HDFS-7980) | Incremental BlockReport will dramatically slow down the startup of  a namenode |  Major | . | Hui Zheng | Walter Su |
+| [HDFS-7960](https://issues.apache.org/jira/browse/HDFS-7960) | The full block report should prune zombie storages even if they're not empty |  Critical | . | Lei (Eddy) Xu | Colin Patrick McCabe |
+| [HDFS-7930](https://issues.apache.org/jira/browse/HDFS-7930) | commitBlockSynchronization() does not remove locations |  Blocker | namenode | Konstantin Shvachko | Yi Liu |
+| [HDFS-7929](https://issues.apache.org/jira/browse/HDFS-7929) | inotify unable fetch pre-upgrade edit log segments once upgrade starts |  Major | . | Zhe Zhang | Zhe Zhang |
+| [HDFS-7915](https://issues.apache.org/jira/browse/HDFS-7915) | The DataNode can sometimes allocate a ShortCircuitShm slot and fail to tell the DFSClient about it because of a network error |  Major | . | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-7894](https://issues.apache.org/jira/browse/HDFS-7894) | Rolling upgrade readiness is not updated in jmx until query command is issued. |  Critical | . | Kihwal Lee | Brahma Reddy Battula |
+| [HDFS-7885](https://issues.apache.org/jira/browse/HDFS-7885) | Datanode should not trust the generation stamp provided by client |  Critical | datanode | vitthal (Suhas) Gogate | Tsz Wo Nicholas Sze |
+| [HDFS-7884](https://issues.apache.org/jira/browse/HDFS-7884) | NullPointerException in BlockSender |  Blocker | datanode | Tsz Wo Nicholas Sze | Brahma Reddy Battula |
+| [HDFS-7871](https://issues.apache.org/jira/browse/HDFS-7871) | NameNodeEditLogRoller can keep printing "Swallowing exception" message |  Critical | . | Jing Zhao | Jing Zhao |
+| [HDFS-7830](https://issues.apache.org/jira/browse/HDFS-7830) | DataNode does not release the volume lock when adding a volume fails. |  Major | datanode | Lei (Eddy) Xu | Lei (Eddy) Xu |
+| [HDFS-7788](https://issues.apache.org/jira/browse/HDFS-7788) | Post-2.6 namenode may not start up with an image containing inodes created with an old release. |  Blocker | . | Kihwal Lee | Rushabh S Shah |
+| [HDFS-7763](https://issues.apache.org/jira/browse/HDFS-7763) | fix zkfc hung issue due to not catching exception in a corner case |  Major | ha | Liang Xie | Liang Xie |
+| [HDFS-7742](https://issues.apache.org/jira/browse/HDFS-7742) | favoring decommissioning node for replication can cause a block to stay underreplicated for long periods |  Major | namenode | Nathan Roberts | Nathan Roberts |
+| [HDFS-7733](https://issues.apache.org/jira/browse/HDFS-7733) | NFS: readdir/readdirplus return null directory attribute on failure |  Major | nfs | Arpit Agarwal | Arpit Agarwal |
+| [HDFS-7714](https://issues.apache.org/jira/browse/HDFS-7714) | Simultaneous restart of HA NameNodes and DataNode can cause DataNode to register successfully with only one NameNode. |  Major | datanode | Chris Nauroth | Vinayakumar B |
+| [HDFS-7707](https://issues.apache.org/jira/browse/HDFS-7707) | Edit log corruption due to delayed block removal again |  Major | namenode | Yongjun Zhang | Yongjun Zhang |
+| [HDFS-7610](https://issues.apache.org/jira/browse/HDFS-7610) | Fix removal of dynamically added DN volumes |  Major | datanode | Lei (Eddy) Xu | Lei (Eddy) Xu |
+| [HDFS-7609](https://issues.apache.org/jira/browse/HDFS-7609) | Avoid retry cache collision when Standby NameNode loading edits |  Critical | namenode | Carrey Zhan | Ming Ma |
+| [HDFS-7596](https://issues.apache.org/jira/browse/HDFS-7596) | NameNode should prune dead storages from storageMap |  Major | namenode | Arpit Agarwal | Arpit Agarwal |
+| [HDFS-7587](https://issues.apache.org/jira/browse/HDFS-7587) | Edit log corruption can happen if append fails with a quota violation |  Blocker | namenode | Kihwal Lee | Jing Zhao |
+| [HDFS-7575](https://issues.apache.org/jira/browse/HDFS-7575) | Upgrade should generate a unique storage ID for each volume |  Critical | . | Lars Francke | Arpit Agarwal |
+| [HDFS-7552](https://issues.apache.org/jira/browse/HDFS-7552) | change FsVolumeList toString() to fix TestDataNodeVolumeFailureToleration |  Major | datanode, test | Liang Xie | Liang Xie |
+| [HDFS-7533](https://issues.apache.org/jira/browse/HDFS-7533) | Datanode sometimes does not shutdown on receiving upgrade shutdown command |  Major | . | Kihwal Lee | Eric Payne |
+| [HDFS-7503](https://issues.apache.org/jira/browse/HDFS-7503) | Namenode restart after large deletions can cause slow processReport (due to logging) |  Major | namenode | Arpit Agarwal | Arpit Agarwal |
+| [HDFS-7489](https://issues.apache.org/jira/browse/HDFS-7489) | Incorrect locking in FsVolumeList#checkDirs can hang datanodes |  Critical | datanode | Noah Lorang | Noah Lorang |
+| [HDFS-7470](https://issues.apache.org/jira/browse/HDFS-7470) | SecondaryNameNode need twice memory when calling reloadFromImageFile |  Major | namenode | zhaoyunjiong | zhaoyunjiong |
+| [HDFS-7443](https://issues.apache.org/jira/browse/HDFS-7443) | Datanode upgrade to BLOCKID\_BASED\_LAYOUT fails if duplicate block files are present in the same volume |  Blocker | . | Kihwal Lee | Colin Patrick McCabe |
+| [HDFS-7425](https://issues.apache.org/jira/browse/HDFS-7425) | NameNode block deletion logging uses incorrect appender. |  Minor | namenode | Chris Nauroth | Chris Nauroth |
+| [HDFS-7263](https://issues.apache.org/jira/browse/HDFS-7263) | Snapshot read can reveal future bytes for appended files. |  Major | hdfs-client | Konstantin Shvachko | Tao Luo |
+| [HDFS-7235](https://issues.apache.org/jira/browse/HDFS-7235) | DataNode#transferBlock should report blocks that don't exist using reportBadBlock |  Major | datanode, namenode | Yongjun Zhang | Yongjun Zhang |
+| [HDFS-7225](https://issues.apache.org/jira/browse/HDFS-7225) | Remove stale block invalidation work when DN re-registers with different UUID |  Major | namenode | Zhe Zhang | Zhe Zhang |
+| [HDFS-7213](https://issues.apache.org/jira/browse/HDFS-7213) | processIncrementalBlockReport performance degradation |  Critical | namenode | Daryn Sharp | Eric Payne |
+| [HDFS-7009](https://issues.apache.org/jira/browse/HDFS-7009) | Active NN and standby NN have different live nodes |  Major | datanode | Ming Ma | Ming Ma |
+| [HDFS-4882](https://issues.apache.org/jira/browse/HDFS-4882) | Prevent the Namenode's LeaseManager from looping forever in checkLeases |  Critical | hdfs-client, namenode | Zesheng Wu | Ravi Prakash |
+| [HDFS-3443](https://issues.apache.org/jira/browse/HDFS-3443) | Fix NPE when namenode transition to active during startup by adding checkNNStartup() in NameNodeRpcServer |  Major | auto-failover, ha | suja s | Vinayakumar B |
+| [MAPREDUCE-6361](https://issues.apache.org/jira/browse/MAPREDUCE-6361) | NPE issue in shuffle caused by concurrent issue between copySucceeded() in one thread and copyFailed() in another thread on the same host |  Critical | . | Junping Du | Junping Du |
+| [MAPREDUCE-6324](https://issues.apache.org/jira/browse/MAPREDUCE-6324) | Uber jobs fail to update AMRM token when it rolls over |  Blocker | mr-am | Jason Lowe | Jason Lowe |
+| [MAPREDUCE-6303](https://issues.apache.org/jira/browse/MAPREDUCE-6303) | Read timeout when retrying a fetch error can be fatal to a reducer |  Blocker | . | Jason Lowe | Jason Lowe |
+| [MAPREDUCE-6300](https://issues.apache.org/jira/browse/MAPREDUCE-6300) | Task list sort by task id broken |  Minor | . | Siqi Li | Siqi Li |
+| [MAPREDUCE-6238](https://issues.apache.org/jira/browse/MAPREDUCE-6238) | MR2 can't run local jobs with -libjars command options which is a regression from MR1 |  Critical | mrv2 | zhihai xu | zhihai xu |
+| [MAPREDUCE-6237](https://issues.apache.org/jira/browse/MAPREDUCE-6237) | Multiple mappers with DBInputFormat don't work because of reusing conections |  Major | mrv2 | Kannan Rajah | Kannan Rajah |
+| [MAPREDUCE-6230](https://issues.apache.org/jira/browse/MAPREDUCE-6230) | MR AM does not survive RM restart if RM activated a new AMRM secret key |  Blocker | mr-am | Jason Lowe | Jason Lowe |
+| [MAPREDUCE-6166](https://issues.apache.org/jira/browse/MAPREDUCE-6166) | Reducers do not validate checksum of map outputs when fetching directly to disk |  Major | mrv2 | Eric Payne | Eric Payne |
+| [MAPREDUCE-5649](https://issues.apache.org/jira/browse/MAPREDUCE-5649) | Reduce cannot use more than 2G memory  for the final merge |  Major | mrv2 | stanley shi | Gera Shegalov |
+| [YARN-4047](https://issues.apache.org/jira/browse/YARN-4047) | ClientRMService getApplications has high scheduler lock contention |  Major | resourcemanager | Jason Lowe | Jason Lowe |
+| [YARN-3999](https://issues.apache.org/jira/browse/YARN-3999) | RM hangs on draining events |  Major | . | Jian He | Jian He |
+| [YARN-3990](https://issues.apache.org/jira/browse/YARN-3990) | AsyncDispatcher may overloaded with RMAppNodeUpdateEvent when Node is connected/disconnected |  Critical | resourcemanager | Rohith Sharma K S | Bibin A Chundatt |
+| [YARN-3850](https://issues.apache.org/jira/browse/YARN-3850) | NM fails to read files from full disks which can lead to container logs being lost and other issues |  Blocker | log-aggregation, nodemanager | Varun Saxena | Varun Saxena |
+| [YARN-3832](https://issues.apache.org/jira/browse/YARN-3832) | Resource Localization fails on a cluster due to existing cache directories |  Critical | nodemanager | Ranga Swamy | Brahma Reddy Battula |
+| [YARN-3733](https://issues.apache.org/jira/browse/YARN-3733) | Fix DominantRC#compare() does not work as expected if cluster resource is empty |  Blocker | resourcemanager | Bibin A Chundatt | Rohith Sharma K S |
+| [YARN-3725](https://issues.apache.org/jira/browse/YARN-3725) | App submission via REST API is broken in secure mode due to Timeline DT service address is empty |  Blocker | resourcemanager, timelineserver | Zhijie Shen | Zhijie Shen |
+| [YARN-3585](https://issues.apache.org/jira/browse/YARN-3585) | NodeManager cannot exit on SHUTDOWN event triggered and NM recovery is enabled |  Critical | . | Peng Zhang | Rohith Sharma K S |
+| [YARN-3526](https://issues.apache.org/jira/browse/YARN-3526) | ApplicationMaster tracking URL is incorrectly redirected on a QJM cluster |  Major | resourcemanager, webapp | Weiwei Yang | Weiwei Yang |
+| [YARN-3493](https://issues.apache.org/jira/browse/YARN-3493) | RM fails to come up with error "Failed to load/recover state" when  mem settings are changed |  Critical | yarn | Sumana Sathish | Jian He |
+| [YARN-3464](https://issues.apache.org/jira/browse/YARN-3464) | Race condition in LocalizerRunner kills localizer before localizing all resources |  Critical | nodemanager | zhihai xu | zhihai xu |
+| [YARN-3393](https://issues.apache.org/jira/browse/YARN-3393) | Getting application(s) goes wrong when app finishes before starting the attempt |  Critical | timelineserver | Zhijie Shen | Zhijie Shen |
+| [YARN-3369](https://issues.apache.org/jira/browse/YARN-3369) | Missing NullPointer check in AppSchedulingInfo causes RM to die |  Blocker | resourcemanager | Giovanni Matteo Fumarola | Brahma Reddy Battula |
+| [YARN-3287](https://issues.apache.org/jira/browse/YARN-3287) | TimelineClient kerberos authentication failure uses wrong login context. |  Major | . | Jonathan Eagles | Daryn Sharp |
+| [YARN-3267](https://issues.apache.org/jira/browse/YARN-3267) | Timelineserver applies the ACL rules after applying the limit on the number of records |  Major | . | Prakash Ramachandran | Chang Li |
+| [YARN-3251](https://issues.apache.org/jira/browse/YARN-3251) | Fix CapacityScheduler deadlock when computing absolute max avail capacity (short term fix for 2.6.1) |  Blocker | . | Jason Lowe | Craig Welch |
+| [YARN-3242](https://issues.apache.org/jira/browse/YARN-3242) | Asynchrony in ZK-close can lead to ZKRMStateStore watcher receiving events for old client |  Critical | resourcemanager | zhihai xu | zhihai xu |
+| [YARN-3239](https://issues.apache.org/jira/browse/YARN-3239) | WebAppProxy does not support a final tracking url which has query fragments and params |  Major | . | Hitesh Shah | Jian He |
+| [YARN-3238](https://issues.apache.org/jira/browse/YARN-3238) | Connection timeouts to nodemanagers are retried at multiple levels |  Blocker | . | Jason Lowe | Jason Lowe |
+| [YARN-3231](https://issues.apache.org/jira/browse/YARN-3231) | FairScheduler: Changing queueMaxRunningApps interferes with pending jobs |  Critical | . | Siqi Li | Siqi Li |
+| [YARN-3227](https://issues.apache.org/jira/browse/YARN-3227) | Timeline renew delegation token fails when RM user's TGT is expired |  Critical | . | Jonathan Eagles | Zhijie Shen |
+| [YARN-3222](https://issues.apache.org/jira/browse/YARN-3222) | RMNodeImpl#ReconnectNodeTransition should send scheduler events in sequential order |  Critical | resourcemanager | Rohith Sharma K S | Rohith Sharma K S |
+| [YARN-3207](https://issues.apache.org/jira/browse/YARN-3207) | secondary filter matches entites which do not have the key being filtered for. |  Major | timelineserver | Prakash Ramachandran | Zhijie Shen |
+| [YARN-3103](https://issues.apache.org/jira/browse/YARN-3103) | AMRMClientImpl does not update AMRM token properly |  Blocker | client | Jason Lowe | Jason Lowe |
+| [YARN-3094](https://issues.apache.org/jira/browse/YARN-3094) | reset timer for liveness monitors after RM recovery |  Major | resourcemanager | Jun Gong | Jun Gong |
+| [YARN-3055](https://issues.apache.org/jira/browse/YARN-3055) | The token is not renewed properly if it's shared by jobs (oozie) in DelegationTokenRenewer |  Blocker | security | Yi Liu | Daryn Sharp |
+| [YARN-3024](https://issues.apache.org/jira/browse/YARN-3024) | LocalizerRunner should give DIE action when all resources are localized |  Major | nodemanager | Chengbing Liu | Chengbing Liu |
+| [YARN-2997](https://issues.apache.org/jira/browse/YARN-2997) | NM keeps sending already-sent completed containers to RM until containers are removed from context |  Major | nodemanager | Chengbing Liu | Chengbing Liu |
+| [YARN-2992](https://issues.apache.org/jira/browse/YARN-2992) | ZKRMStateStore crashes due to session expiry |  Blocker | resourcemanager | Karthik Kambatla | Karthik Kambatla |
+| [YARN-2978](https://issues.apache.org/jira/browse/YARN-2978) | ResourceManager crashes with NPE while getting queue info |  Critical | . | Jason Tufo | Varun Saxena |
+| [YARN-2964](https://issues.apache.org/jira/browse/YARN-2964) | RM prematurely cancels tokens for jobs that submit jobs (oozie) |  Blocker | resourcemanager | Daryn Sharp | Jian He |
+| [YARN-2952](https://issues.apache.org/jira/browse/YARN-2952) | Incorrect version check in RMStateStore |  Major | . | Jian He | Rohith Sharma K S |
+| [YARN-2922](https://issues.apache.org/jira/browse/YARN-2922) | ConcurrentModificationException in CapacityScheduler's LeafQueue |  Major | capacityscheduler, resourcemanager, scheduler | Jason Tufo | Rohith Sharma K S |
+| [YARN-2917](https://issues.apache.org/jira/browse/YARN-2917) | Potential deadlock in AsyncDispatcher when system.exit called in AsyncDispatcher#dispatch and AsyscDispatcher#serviceStop from shutdown hook |  Critical | resourcemanager | Rohith Sharma K S | Rohith Sharma K S |
+| [YARN-2910](https://issues.apache.org/jira/browse/YARN-2910) | FSLeafQueue can throw ConcurrentModificationException |  Major | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg |
+| [YARN-2906](https://issues.apache.org/jira/browse/YARN-2906) | CapacitySchedulerPage shows HTML tags for a queue's Active Users |  Major | capacityscheduler | Jason Lowe | Jason Lowe |
+| [YARN-2905](https://issues.apache.org/jira/browse/YARN-2905) | AggregatedLogsBlock page can infinitely loop if the aggregated log file is corrupted |  Blocker | . | Jason Lowe | Varun Saxena |
+| [YARN-2894](https://issues.apache.org/jira/browse/YARN-2894) | When ACL's are enabled, if RM switches then application can not be viewed from web. |  Major | resourcemanager | Rohith Sharma K S | Rohith Sharma K S |
+| [YARN-2890](https://issues.apache.org/jira/browse/YARN-2890) | MiniYarnCluster should turn on timeline service if configured to do so |  Major | . | Mit Desai | Mit Desai |
+| [YARN-2874](https://issues.apache.org/jira/browse/YARN-2874) | Dead lock in "DelegationTokenRenewer" which blocks RM to execute any further apps |  Blocker | resourcemanager | Naganarasimha G R | Naganarasimha G R |
+| [YARN-2865](https://issues.apache.org/jira/browse/YARN-2865) | Application recovery continuously fails with "Application with id already present. Cannot duplicate" |  Critical | resourcemanager | Rohith Sharma K S | Rohith Sharma K S |
+| [YARN-2856](https://issues.apache.org/jira/browse/YARN-2856) | Application recovery throw InvalidStateTransitonException: Invalid event: ATTEMPT\_KILLED at ACCEPTED |  Critical | resourcemanager | Rohith Sharma K S | Rohith Sharma K S |
+| [YARN-2816](https://issues.apache.org/jira/browse/YARN-2816) | NM fail to start with NPE during container recovery |  Major | nodemanager | zhihai xu | zhihai xu |
+| [YARN-2637](https://issues.apache.org/jira/browse/YARN-2637) | maximum-am-resource-percent could be respected for both LeafQueue/User when trying to activate applications. |  Critical | resourcemanager | Wangda Tan | Craig Welch |
+| [YARN-2414](https://issues.apache.org/jira/browse/YARN-2414) | RM web UI: app page will crash if app is failed before any attempt has been created |  Major | webapp | Zhijie Shen | Wangda Tan |
+| [YARN-2340](https://issues.apache.org/jira/browse/YARN-2340) | NPE thrown when RM restart after queue is STOPPED. There after RM can not recovery application's and remain in standby |  Critical | resourcemanager, scheduler | Nishan Shetty | Rohith Sharma K S |
+| [YARN-2246](https://issues.apache.org/jira/browse/YARN-2246) | Job History Link in RM UI is redirecting to the URL which contains Job Id twice |  Major | webapp | Devaraj K | Devaraj K |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-11710](https://issues.apache.org/jira/browse/HADOOP-11710) | Make CryptoOutputStream behave like DFSOutputStream wrt synchronization |  Critical | fs | Sean Busbey | Sean Busbey |
+| [HDFS-7035](https://issues.apache.org/jira/browse/HDFS-7035) | Make adding a new data directory to the DataNode an atomic operation and improve error handling |  Major | datanode | Lei (Eddy) Xu | Lei (Eddy) Xu |
+| [YARN-3740](https://issues.apache.org/jira/browse/YARN-3740) | Fixed the typo with the configuration name: APPLICATION\_HISTORY\_PREFIX\_MAX\_APPS |  Major | resourcemanager, webapp, yarn | Xuan Gong | Xuan Gong |
+| [YARN-3700](https://issues.apache.org/jira/browse/YARN-3700) | ATS Web Performance issue at load time when large number of jobs |  Major | resourcemanager, webapp, yarn | Xuan Gong | Xuan Gong |
+| [YARN-3544](https://issues.apache.org/jira/browse/YARN-3544) | AM logs link missing in the RM UI for a completed app |  Blocker | . | Hitesh Shah | Xuan Gong |
+| [YARN-3487](https://issues.apache.org/jira/browse/YARN-3487) | CapacityScheduler scheduler lock obtained unnecessarily when calling getQueue |  Critical | capacityscheduler | Jason Lowe | Jason Lowe |
+| [YARN-3171](https://issues.apache.org/jira/browse/YARN-3171) | Sort by Application id, AppAttempt & ContainerID doesn't work in ATS / RM web ui |  Minor | timelineserver | Jeff Zhang | Naganarasimha G R |
+| [YARN-3124](https://issues.apache.org/jira/browse/YARN-3124) | Capacity Scheduler LeafQueue/ParentQueue should use QueueCapacities to track capacities-by-label |  Major | api, client, resourcemanager | Wangda Tan | Wangda Tan |
+| [YARN-3099](https://issues.apache.org/jira/browse/YARN-3099) | Capacity Scheduler LeafQueue/ParentQueue should use ResourceUsage to track used-resources-by-label. |  Major | api, client, resourcemanager | Wangda Tan | Wangda Tan |
+| [YARN-3098](https://issues.apache.org/jira/browse/YARN-3098) | Create common QueueCapacities class in Capacity Scheduler to track capacities-by-labels of queues |  Major | capacityscheduler | Wangda Tan | Wangda Tan |
+| [YARN-3092](https://issues.apache.org/jira/browse/YARN-3092) | Create common ResourceUsage class to track labeled resource usages in Capacity Scheduler |  Major | api, client, resourcemanager | Wangda Tan | Wangda Tan |
+| [YARN-3011](https://issues.apache.org/jira/browse/YARN-3011) | NM dies because of the failure of resource localization |  Major | nodemanager | Wang Hao | Varun Saxena |
+| [YARN-2920](https://issues.apache.org/jira/browse/YARN-2920) | CapacityScheduler should be notified when labels on nodes changed |  Major | . | Wangda Tan | Wangda Tan |
+| [YARN-2918](https://issues.apache.org/jira/browse/YARN-2918) | Don't fail RM if queue's configured labels are not existed in cluster-node-labels |  Major | resourcemanager | Rohith Sharma K S | Wangda Tan |
+| [YARN-2900](https://issues.apache.org/jira/browse/YARN-2900) | Application (Attempt and Container) Not Found in AHS results in Internal Server Error (500) |  Major | timelineserver | Jonathan Eagles | Mit Desai |
+| [YARN-2766](https://issues.apache.org/jira/browse/YARN-2766) |  ApplicationHistoryManager is expected to return a sorted list of apps/attempts/containers |  Major | timelineserver | Robert Kanter | Robert Kanter |
+| [YARN-2694](https://issues.apache.org/jira/browse/YARN-2694) | Ensure only single node labels specified in resource request / host, and node label expression only specified when resourceName=ANY |  Major | capacityscheduler, resourcemanager | Wangda Tan | Wangda Tan |
+| [YARN-1984](https://issues.apache.org/jira/browse/YARN-1984) | LeveldbTimelineStore does not handle db exceptions properly |  Major | . | Jason Lowe | Varun Saxena |
+| [YARN-1884](https://issues.apache.org/jira/browse/YARN-1884) | ContainerReport should have nodeHttpAddress |  Major | . | Zhijie Shen | Xuan Gong |
+| [YARN-1809](https://issues.apache.org/jira/browse/YARN-1809) | Synchronize RM and Generic History Service Web-UIs |  Major | . | Zhijie Shen | Xuan Gong |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.1/RELEASENOTES.2.6.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.1/RELEASENOTES.2.6.1.md
new file mode 100644
index 00000000000..a38ca6084ad
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.1/RELEASENOTES.2.6.1.md
@@ -0,0 +1,45 @@
+
+<!---
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+-->
+# Apache Hadoop  2.6.1 Release Notes
+
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
+
+
+---
+
+* [HADOOP-7139](https://issues.apache.org/jira/browse/HADOOP-7139) | *Major* | **Allow appending to existing SequenceFiles**
+
+Existing sequence files can be appended.
+
+
+---
+
+* [HDFS-8486](https://issues.apache.org/jira/browse/HDFS-8486) | *Blocker* | **DN startup may cause severe data loss**
+
+<!-- markdown -->
+Public service notice:
+* Every restart of a 2.6.x or 2.7.0 DN incurs a risk of unwanted block deletion.
+* Apply this patch if you are running a pre-2.7.1 release.
+
+
+---
+
+* [HDFS-8270](https://issues.apache.org/jira/browse/HDFS-8270) | *Major* | **create() always retried with hardcoded timeout when file already exists with open lease**
+
+Proxy level retries will not be done on AlreadyBeingCreatedExeption for create() op.
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.2/CHANGES.2.6.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.2/CHANGES.2.6.2.md
new file mode 100644
index 00000000000..0ebba50cb6d
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.2/CHANGES.2.6.2.md
@@ -0,0 +1,83 @@
+
+<!---
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+-->
+# Apache Hadoop Changelog
+
+## Release 2.6.2 - 2015-10-28
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [YARN-3727](https://issues.apache.org/jira/browse/YARN-3727) | For better error recovery, check if the directory exists before using it for localization. |  Major | nodemanager | zhihai xu | zhihai xu |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [MAPREDUCE-6497](https://issues.apache.org/jira/browse/MAPREDUCE-6497) | Fix wrong value of JOB\_FINISHED event in JobHistoryEventHandler |  Major | . | Shinichi Yamashita | Shinichi Yamashita |
+| [MAPREDUCE-6454](https://issues.apache.org/jira/browse/MAPREDUCE-6454) | MapReduce doesn't set the HADOOP\_CLASSPATH for jar lib in distributed cache. |  Critical | . | Junping Du | Junping Du |
+| [MAPREDUCE-6334](https://issues.apache.org/jira/browse/MAPREDUCE-6334) | Fetcher#copyMapOutput is leaking usedMemory upon IOException during InMemoryMapOutput shuffle handler |  Blocker | . | Eric Payne | Eric Payne |
+| [YARN-4087](https://issues.apache.org/jira/browse/YARN-4087) | Followup fixes after YARN-2019 regarding RM behavior when state-store error occurs |  Major | . | Jian He | Jian He |
+| [YARN-4005](https://issues.apache.org/jira/browse/YARN-4005) | Completed container whose app is finished is not removed from NMStateStore |  Major | . | Jun Gong | Jun Gong |
+| [YARN-3896](https://issues.apache.org/jira/browse/YARN-3896) | RMNode transitioned from RUNNING to REBOOTED because its response id had not been reset synchronously |  Major | resourcemanager | Jun Gong | Jun Gong |
+| [YARN-3802](https://issues.apache.org/jira/browse/YARN-3802) | Two RMNodes for the same NodeId are used in RM sometimes after NM is reconnected. |  Major | resourcemanager | zhihai xu | zhihai xu |
+| [YARN-3798](https://issues.apache.org/jira/browse/YARN-3798) | ZKRMStateStore shouldn't create new session without occurrance of SESSIONEXPIED |  Blocker | resourcemanager | Bibin A Chundatt | Varun Saxena |
+| [YARN-3780](https://issues.apache.org/jira/browse/YARN-3780) | Should use equals when compare Resource in RMNodeImpl#ReconnectNodeTransition |  Minor | resourcemanager | zhihai xu | zhihai xu |
+| [YARN-3554](https://issues.apache.org/jira/browse/YARN-3554) | Default value for maximum nodemanager connect wait time is too high |  Major | . | Jason Lowe | Naganarasimha G R |
+| [YARN-3194](https://issues.apache.org/jira/browse/YARN-3194) | RM should handle NMContainerStatuses sent by NM while registering if NM is Reconnected node |  Blocker | resourcemanager | Rohith Sharma K S | Rohith Sharma K S |
+| [YARN-2019](https://issues.apache.org/jira/browse/YARN-2019) | Retrospect on decision of making RM crashed if any exception throw in ZKRMStateStore |  Critical | . | Junping Du | Jian He |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [YARN-4101](https://issues.apache.org/jira/browse/YARN-4101) | RM should print alert messages if Zookeeper and Resourcemanager gets connection issue |  Critical | yarn | Yesha Vora | Xuan Gong |
+| [YARN-4092](https://issues.apache.org/jira/browse/YARN-4092) | RM HA UI redirection needs to be fixed when both RMs are in standby mode |  Major | resourcemanager | Xuan Gong | Xuan Gong |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.2/RELEASENOTES.2.6.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.2/RELEASENOTES.2.6.2.md
new file mode 100644
index 00000000000..584ffa0bbc0
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.2/RELEASENOTES.2.6.2.md
@@ -0,0 +1,21 @@
+
+<!---
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+-->
+# Apache Hadoop  2.6.2 Release Notes
+
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.3/CHANGES.2.6.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.3/CHANGES.2.6.3.md
new file mode 100644
index 00000000000..e0c4f1c41bd
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.3/CHANGES.2.6.3.md
@@ -0,0 +1,103 @@
+
+<!---
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+-->
+# Apache Hadoop Changelog
+
+## Release 2.6.3 - 2015-12-17
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-12413](https://issues.apache.org/jira/browse/HADOOP-12413) | AccessControlList should avoid calling getGroupNames in isUserInList with empty groups. |  Major | security | zhihai xu | zhihai xu |
+| [HDFS-9434](https://issues.apache.org/jira/browse/HDFS-9434) | Recommission a datanode with 500k blocks may pause NN for 30 seconds |  Major | namenode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-12577](https://issues.apache.org/jira/browse/HADOOP-12577) | Bump up commons-collections version to 3.2.2 to address a security flaw |  Blocker | build, security | Wei-Chiu Chuang | Wei-Chiu Chuang |
+| [HADOOP-12526](https://issues.apache.org/jira/browse/HADOOP-12526) | [Branch-2] there are duplicate dependency definitions in pom's |  Major | build | Sangjin Lee | Sangjin Lee |
+| [HADOOP-12230](https://issues.apache.org/jira/browse/HADOOP-12230) | hadoop-project declares duplicate, conflicting curator dependencies |  Minor | build | Steve Loughran | Rakesh R |
+| [HADOOP-11267](https://issues.apache.org/jira/browse/HADOOP-11267) | TestSecurityUtil fails when run with JDK8 because of empty principal names |  Minor | security, test | Stephen Chu | Stephen Chu |
+| [HADOOP-10134](https://issues.apache.org/jira/browse/HADOOP-10134) | [JDK8] Fix Javadoc errors caused by incorrect or illegal tags in doc comments |  Minor | . | Andrew Purtell | Andrew Purtell |
+| [HADOOP-9242](https://issues.apache.org/jira/browse/HADOOP-9242) | Duplicate surefire plugin config in hadoop-common |  Major | test | Andrey Klochkov | Andrey Klochkov |
+| [HDFS-9470](https://issues.apache.org/jira/browse/HDFS-9470) | Encryption zone on root not loaded from fsimage after NN restart |  Critical | . | Xiao Chen | Xiao Chen |
+| [HDFS-9431](https://issues.apache.org/jira/browse/HDFS-9431) | DistributedFileSystem#concat fails if the target path is relative. |  Major | hdfs-client | Kazuho Fujii | Kazuho Fujii |
+| [HDFS-9289](https://issues.apache.org/jira/browse/HDFS-9289) | Make DataStreamer#block thread safe and verify genStamp in commitBlock |  Critical | . | Chang Li | Chang Li |
+| [HDFS-9273](https://issues.apache.org/jira/browse/HDFS-9273) | ACLs on root directory may be lost after NN restart |  Critical | namenode | Xiao Chen | Xiao Chen |
+| [HDFS-9083](https://issues.apache.org/jira/browse/HDFS-9083) | Replication violates block placement policy. |  Blocker | namenode | Rushabh S Shah | Rushabh S Shah |
+| [HDFS-8615](https://issues.apache.org/jira/browse/HDFS-8615) | Correct HTTP method in WebHDFS document |  Major | documentation | Akira AJISAKA | Brahma Reddy Battula |
+| [MAPREDUCE-6549](https://issues.apache.org/jira/browse/MAPREDUCE-6549) | multibyte delimiters with LineRecordReader cause duplicate records |  Major | mrv1, mrv2 | Dustin Cote | Wilfred Spiegelenburg |
+| [MAPREDUCE-6540](https://issues.apache.org/jira/browse/MAPREDUCE-6540) | TestMRTimelineEventHandling fails |  Major | test | Sangjin Lee | Sangjin Lee |
+| [MAPREDUCE-6528](https://issues.apache.org/jira/browse/MAPREDUCE-6528) | Memory leak for HistoryFileManager.getJobSummary() |  Critical | jobhistoryserver | Junping Du | Junping Du |
+| [MAPREDUCE-6481](https://issues.apache.org/jira/browse/MAPREDUCE-6481) | LineRecordReader may give incomplete record and wrong position/key information for uncompressed input sometimes. |  Critical | mrv2 | zhihai xu | zhihai xu |
+| [MAPREDUCE-6377](https://issues.apache.org/jira/browse/MAPREDUCE-6377) | JHS sorting on state column not working in webUi |  Minor | jobhistoryserver | Bibin A Chundatt | zhihai xu |
+| [MAPREDUCE-6273](https://issues.apache.org/jira/browse/MAPREDUCE-6273) | HistoryFileManager should check whether summaryFile exists to avoid FileNotFoundException causing HistoryFileInfo into MOVE\_FAILED state |  Minor | jobhistoryserver | zhihai xu | zhihai xu |
+| [MAPREDUCE-5948](https://issues.apache.org/jira/browse/MAPREDUCE-5948) | org.apache.hadoop.mapred.LineRecordReader does not handle multibyte record delimiters well |  Critical | . | Kris Geusebroek | Akira AJISAKA |
+| [MAPREDUCE-5883](https://issues.apache.org/jira/browse/MAPREDUCE-5883) | "Total megabyte-seconds" in job counters is slightly misleading |  Minor | . | Nathan Roberts | Nathan Roberts |
+| [YARN-4434](https://issues.apache.org/jira/browse/YARN-4434) | NodeManager Disk Checker parameter documentation is not correct |  Minor | documentation, nodemanager | Takashi Ohnishi | Weiwei Yang |
+| [YARN-4424](https://issues.apache.org/jira/browse/YARN-4424) | Fix deadlock in RMAppImpl |  Blocker | . | Yesha Vora | Jian He |
+| [YARN-4365](https://issues.apache.org/jira/browse/YARN-4365) | FileSystemNodeLabelStore should check for root dir existence on startup |  Major | resourcemanager | Jason Lowe | Kuhu Shukla |
+| [YARN-4348](https://issues.apache.org/jira/browse/YARN-4348) | ZKRMStateStore.syncInternal shouldn't wait for sync completion for avoiding blocking ZK's event thread |  Blocker | . | Tsuyoshi Ozawa | Tsuyoshi Ozawa |
+| [YARN-4344](https://issues.apache.org/jira/browse/YARN-4344) | NMs reconnecting with changed capabilities can lead to wrong cluster resource calculations |  Critical | resourcemanager | Varun Vasudev | Varun Vasudev |
+| [YARN-4326](https://issues.apache.org/jira/browse/YARN-4326) | Fix TestDistributedShell timeout as AHS in MiniYarnCluster no longer binds to default port 8188 |  Major | . | MENG DING | MENG DING |
+| [YARN-4320](https://issues.apache.org/jira/browse/YARN-4320) | TestJobHistoryEventHandler fails as AHS in MiniYarnCluster no longer binds to default port 8188 |  Major | . | Varun Saxena | Varun Saxena |
+| [YARN-4312](https://issues.apache.org/jira/browse/YARN-4312) | TestSubmitApplicationWithRMHA fails on branch-2.7 and branch-2.6 as some of the test cases time out |  Major | . | Varun Saxena | Varun Saxena |
+| [YARN-4241](https://issues.apache.org/jira/browse/YARN-4241) | Fix typo of property name in yarn-default.xml |  Major | documentation | Anthony Rojas | Anthony Rojas |
+| [YARN-3925](https://issues.apache.org/jira/browse/YARN-3925) | ContainerLogsUtils#getContainerLogFile fails to read container log files from full disks. |  Critical | nodemanager | zhihai xu | zhihai xu |
+| [YARN-3878](https://issues.apache.org/jira/browse/YARN-3878) | AsyncDispatcher can hang while stopping if it is configured for draining events on stop |  Critical | . | Varun Saxena | Varun Saxena |
+| [YARN-2859](https://issues.apache.org/jira/browse/YARN-2859) | ApplicationHistoryServer binds to default port 8188 in MiniYARNCluster |  Critical | timelineserver | Hitesh Shah | Vinod Kumar Vavilapalli |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-10668](https://issues.apache.org/jira/browse/HADOOP-10668) | TestZKFailoverControllerStress#testExpireBackAndForth occasionally fails |  Major | test | Ted Yu | Ming Ma |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.3/RELEASENOTES.2.6.3.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.3/RELEASENOTES.2.6.3.md
new file mode 100644
index 00000000000..e2625458b98
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.3/RELEASENOTES.2.6.3.md
@@ -0,0 +1,21 @@
+
+<!---
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+-->
+# Apache Hadoop  2.6.3 Release Notes
+
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.4/CHANGES.2.6.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.4/CHANGES.2.6.4.md
new file mode 100644
index 00000000000..e38a93a8050
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.4/CHANGES.2.6.4.md
@@ -0,0 +1,114 @@
+
+<!---
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+-->
+# Apache Hadoop Changelog
+
+## Release 2.6.4 - 2016-02-11
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [YARN-3154](https://issues.apache.org/jira/browse/YARN-3154) | Should not upload partial logs for MR jobs or other "short-running' applications |  Blocker | nodemanager, resourcemanager | Xuan Gong | Xuan Gong |
+
+
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-9415](https://issues.apache.org/jira/browse/HDFS-9415) | Document dfs.cluster.administrators and dfs.permissions.superusergroup |  Major | documentation | Arpit Agarwal | Xiaobing Zhou |
+| [HDFS-9314](https://issues.apache.org/jira/browse/HDFS-9314) | Improve BlockPlacementPolicyDefault's picking of excess replicas |  Major | . | Ming Ma | Xiao Chen |
+| [HDFS-8722](https://issues.apache.org/jira/browse/HDFS-8722) | Optimize datanode writes for small writes and flushes |  Critical | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-8647](https://issues.apache.org/jira/browse/HDFS-8647) | Abstract BlockManager's rack policy into BlockPlacementPolicy |  Major | . | Ming Ma | Brahma Reddy Battula |
+| [HDFS-7694](https://issues.apache.org/jira/browse/HDFS-7694) | FSDataInputStream should support "unbuffer" |  Major | . | Colin Patrick McCabe | Colin Patrick McCabe |
+| [MAPREDUCE-6436](https://issues.apache.org/jira/browse/MAPREDUCE-6436) | JobHistory cache issue |  Blocker | . | Ryu Kobayashi | Kai Sasaki |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-12706](https://issues.apache.org/jira/browse/HADOOP-12706) | TestLocalFsFCStatistics#testStatisticsThreadLocalDataCleanUp times out occasionally |  Major | test | Jason Lowe | Sangjin Lee |
+| [HADOOP-12107](https://issues.apache.org/jira/browse/HADOOP-12107) | long running apps may have a huge number of StatisticsData instances under FileSystem |  Critical | fs | Sangjin Lee | Sangjin Lee |
+| [HADOOP-11252](https://issues.apache.org/jira/browse/HADOOP-11252) | RPC client does not time out by default |  Critical | ipc | Wilfred Spiegelenburg | Masatake Iwasaki |
+| [HDFS-9600](https://issues.apache.org/jira/browse/HDFS-9600) | do not check replication if the block is under construction |  Critical | . | Phil Yang | Phil Yang |
+| [HDFS-9574](https://issues.apache.org/jira/browse/HDFS-9574) | Reduce client failures during datanode restart |  Major | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-9445](https://issues.apache.org/jira/browse/HDFS-9445) | Datanode may deadlock while handling a bad volume |  Blocker | . | Kihwal Lee | Walter Su |
+| [HDFS-9313](https://issues.apache.org/jira/browse/HDFS-9313) | Possible NullPointerException in BlockManager if no excess replica can be chosen |  Major | . | Ming Ma | Ming Ma |
+| [HDFS-9294](https://issues.apache.org/jira/browse/HDFS-9294) | DFSClient  deadlock when close file and failed to renew lease |  Blocker | hdfs-client | DENG FEI | Brahma Reddy Battula |
+| [HDFS-9220](https://issues.apache.org/jira/browse/HDFS-9220) | Reading small file (\< 512 bytes) that is open for append fails due to incorrect checksum |  Blocker | . | Bogdan Raducanu | Jing Zhao |
+| [HDFS-9178](https://issues.apache.org/jira/browse/HDFS-9178) | Slow datanode I/O can cause a wrong node to be marked bad |  Critical | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-8767](https://issues.apache.org/jira/browse/HDFS-8767) | RawLocalFileSystem.listStatus() returns null for UNIX pipefile |  Critical | . | Haohui Mai | Kanaka Kumar Avvaru |
+| [HDFS-6945](https://issues.apache.org/jira/browse/HDFS-6945) | BlockManager should remove a block from excessReplicateMap and decrement ExcessBlocks metric when the block is removed |  Critical | namenode | Akira AJISAKA | Akira AJISAKA |
+| [HDFS-4660](https://issues.apache.org/jira/browse/HDFS-4660) | Block corruption can happen during pipeline recovery |  Blocker | datanode | Peng Zhang | Kihwal Lee |
+| [MAPREDUCE-6621](https://issues.apache.org/jira/browse/MAPREDUCE-6621) | Memory Leak in JobClient#submitJobInternal() |  Major | . | Xuan Gong | Xuan Gong |
+| [MAPREDUCE-6619](https://issues.apache.org/jira/browse/MAPREDUCE-6619) | HADOOP\_CLASSPATH is overwritten in MR container |  Major | mrv2 | shanyu zhao | Junping Du |
+| [MAPREDUCE-6618](https://issues.apache.org/jira/browse/MAPREDUCE-6618) | YarnClientProtocolProvider leaking the YarnClient thread. |  Major | . | Xuan Gong | Xuan Gong |
+| [MAPREDUCE-6577](https://issues.apache.org/jira/browse/MAPREDUCE-6577) | MR AM unable to load native library without MR\_AM\_ADMIN\_USER\_ENV set |  Critical | mr-am | Sangjin Lee | Sangjin Lee |
+| [MAPREDUCE-6554](https://issues.apache.org/jira/browse/MAPREDUCE-6554) | MRAppMaster servicestart failing  with NPE in MRAppMaster#parsePreviousJobHistory |  Critical | . | Bibin A Chundatt | Bibin A Chundatt |
+| [MAPREDUCE-6492](https://issues.apache.org/jira/browse/MAPREDUCE-6492) | AsyncDispatcher exit with NPE on TaskAttemptImpl#sendJHStartEventForAssignedFailTask |  Critical | . | Bibin A Chundatt | Bibin A Chundatt |
+| [MAPREDUCE-6363](https://issues.apache.org/jira/browse/MAPREDUCE-6363) | [NNBench] Lease mismatch error when running with multiple mappers |  Critical | benchmarks | Brahma Reddy Battula | Bibin A Chundatt |
+| [MAPREDUCE-5982](https://issues.apache.org/jira/browse/MAPREDUCE-5982) | Task attempts that fail from the ASSIGNED state can disappear |  Major | mr-am | Jason Lowe | Chang Li |
+| [YARN-4598](https://issues.apache.org/jira/browse/YARN-4598) | Invalid event: RESOURCE\_FAILED at CONTAINER\_CLEANEDUP\_AFTER\_KILL |  Major | nodemanager | tangshangwen | tangshangwen |
+| [YARN-4581](https://issues.apache.org/jira/browse/YARN-4581) | AHS writer thread leak makes RM crash while RM is recovering |  Major | resourcemanager | sandflee | sandflee |
+| [YARN-4546](https://issues.apache.org/jira/browse/YARN-4546) | ResourceManager crash due to scheduling opportunity overflow |  Critical | resourcemanager | Jason Lowe | Jason Lowe |
+| [YARN-4452](https://issues.apache.org/jira/browse/YARN-4452) | NPE when submit Unmanaged application |  Critical | . | Naganarasimha G R | Naganarasimha G R |
+| [YARN-4414](https://issues.apache.org/jira/browse/YARN-4414) | Nodemanager connection errors are retried at multiple levels |  Major | nodemanager | Jason Lowe | Chang Li |
+| [YARN-4380](https://issues.apache.org/jira/browse/YARN-4380) | TestResourceLocalizationService.testDownloadingResourcesOnContainerKill fails intermittently |  Major | test | Tsuyoshi Ozawa | Varun Saxena |
+| [YARN-4354](https://issues.apache.org/jira/browse/YARN-4354) | Public resource localization fails with NPE |  Blocker | nodemanager | Jason Lowe | Jason Lowe |
+| [YARN-4180](https://issues.apache.org/jira/browse/YARN-4180) | AMLauncher does not retry on failures when talking to NM |  Critical | resourcemanager | Anubhav Dhoot | Anubhav Dhoot |
+| [YARN-3857](https://issues.apache.org/jira/browse/YARN-3857) | Memory leak in ResourceManager with SIMPLE mode |  Critical | resourcemanager | mujunchao | mujunchao |
+| [YARN-3849](https://issues.apache.org/jira/browse/YARN-3849) | Too much of preemption activity causing continuos killing of containers across queues |  Critical | capacityscheduler | Sunil G | Sunil G |
+| [YARN-3842](https://issues.apache.org/jira/browse/YARN-3842) | NMProxy should retry on NMNotYetReadyException |  Critical | . | Karthik Kambatla | Robert Kanter |
+| [YARN-3697](https://issues.apache.org/jira/browse/YARN-3697) | FairScheduler: ContinuousSchedulingThread can fail to shutdown |  Critical | fairscheduler | zhihai xu | zhihai xu |
+| [YARN-3695](https://issues.apache.org/jira/browse/YARN-3695) | ServerProxy (NMProxy, etc.) shouldn't retry forever for non network exception. |  Major | . | Junping Du | Raju Bairishetti |
+| [YARN-3535](https://issues.apache.org/jira/browse/YARN-3535) | Scheduler must re-request container resources when RMContainer transitions from ALLOCATED to KILLED |  Critical | capacityscheduler, fairscheduler, resourcemanager | Peng Zhang | Peng Zhang |
+| [YARN-2975](https://issues.apache.org/jira/browse/YARN-2975) | FSLeafQueue app lists are accessed without required locks |  Blocker | . | Karthik Kambatla | Karthik Kambatla |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-12736](https://issues.apache.org/jira/browse/HADOOP-12736) | TestTimedOutTestsListener#testThreadDumpAndDeadlocks sometimes times out |  Major | . | Xiao Chen | Xiao Chen |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [YARN-3893](https://issues.apache.org/jira/browse/YARN-3893) | Both RM in active state when Admin#transitionToActive failure from refeshAll() |  Critical | resourcemanager | Bibin A Chundatt | Bibin A Chundatt |
+| [YARN-2902](https://issues.apache.org/jira/browse/YARN-2902) | Killing a container that is localizing can orphan resources in the DOWNLOADING state |  Major | nodemanager | Jason Lowe | Varun Saxena |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.4/RELEASENOTES.2.6.4.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.4/RELEASENOTES.2.6.4.md
new file mode 100644
index 00000000000..3eee62b10ff
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.4/RELEASENOTES.2.6.4.md
@@ -0,0 +1,28 @@
+
+<!---
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+-->
+# Apache Hadoop  2.6.4 Release Notes
+
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
+
+
+---
+
+* [YARN-3154](https://issues.apache.org/jira/browse/YARN-3154) | *Blocker* | **Should not upload partial logs for MR jobs or other "short-running' applications**
+
+Applications which made use of the LogAggregationContext in their application will need to revisit this code in order to make sure that their logs continue to get rolled out.
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.0/CHANGES.2.7.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.0/CHANGES.2.7.0.md
index 81ff61e1e22..3e2713894b1 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.0/CHANGES.2.7.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.0/CHANGES.2.7.0.md
@@ -24,17 +24,24 @@
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
 |:---- |:---- | :--- |:---- |:---- |:---- |
-| [HADOOP-11498](https://issues.apache.org/jira/browse/HADOOP-11498) | Bump the version of HTrace to 3.1.0-incubating |  Major | . | Masatake Iwasaki | Masatake Iwasaki |
+| [HADOOP-11498](https://issues.apache.org/jira/browse/HADOOP-11498) | Bump the version of HTrace to 3.1.0-incubating |  Major | tracing | Masatake Iwasaki | Masatake Iwasaki |
 | [HADOOP-11492](https://issues.apache.org/jira/browse/HADOOP-11492) | Bump up curator version to 2.7.1 |  Major | . | Karthik Kambatla | Arun Suresh |
 | [HADOOP-11385](https://issues.apache.org/jira/browse/HADOOP-11385) | Prevent cross site scripting attack on JMXJSONServlet |  Critical | . | Haohui Mai | Haohui Mai |
 | [HADOOP-11311](https://issues.apache.org/jira/browse/HADOOP-11311) | Restrict uppercase key names from being created with JCEKS |  Major | security | Andrew Wang | Andrew Wang |
 | [HADOOP-10530](https://issues.apache.org/jira/browse/HADOOP-10530) | Make hadoop trunk build on Java7+ only |  Blocker | build | Steve Loughran | Steve Loughran |
+| [HDFS-7210](https://issues.apache.org/jira/browse/HDFS-7210) | Avoid two separate RPC's namenode.append() and namenode.getFileInfo() for an append call from DFSClient |  Major | hdfs-client, namenode | Vinayakumar B | Vinayakumar B |
 | [HDFS-6651](https://issues.apache.org/jira/browse/HDFS-6651) | Deletion failure can leak inodes permanently |  Critical | . | Kihwal Lee | Jing Zhao |
 | [HDFS-6252](https://issues.apache.org/jira/browse/HDFS-6252) | Phase out the old web UI in HDFS |  Minor | namenode | Fengdong Yu | Haohui Mai |
 | [YARN-3217](https://issues.apache.org/jira/browse/YARN-3217) | Remove httpclient dependency from hadoop-yarn-server-web-proxy |  Major | . | Akira AJISAKA | Brahma Reddy Battula |
 | [YARN-3154](https://issues.apache.org/jira/browse/YARN-3154) | Should not upload partial logs for MR jobs or other "short-running' applications |  Blocker | nodemanager, resourcemanager | Xuan Gong | Xuan Gong |
 
 
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
 ### NEW FEATURES:
 
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
@@ -125,7 +132,6 @@
 | [HADOOP-10976](https://issues.apache.org/jira/browse/HADOOP-10976) | moving the source code of hadoop-tools docs to the directory under hadoop-tools |  Minor | documentation | Masatake Iwasaki | Masatake Iwasaki |
 | [HADOOP-10847](https://issues.apache.org/jira/browse/HADOOP-10847) | Remove the usage of sun.security.x509.\* in testing code |  Minor | security | Kai Zheng | pascal oliva |
 | [HADOOP-10809](https://issues.apache.org/jira/browse/HADOOP-10809) | hadoop-azure: page blob support |  Major | tools | Mike Liddell | Eric Hanson |
-| [HADOOP-10786](https://issues.apache.org/jira/browse/HADOOP-10786) | Fix UGI#reloginFromKeytab on Java 8 |  Major | security | Tobi Vollebregt | Stephen Chu |
 | [HADOOP-10670](https://issues.apache.org/jira/browse/HADOOP-10670) | Allow AuthenticationFilters to load secret from signature secret files |  Minor | security | Kai Zheng | Kai Zheng |
 | [HADOOP-10626](https://issues.apache.org/jira/browse/HADOOP-10626) | Limit Returning Attributes for LDAP search |  Major | security | Jason Hubbard | Jason Hubbard |
 | [HADOOP-10563](https://issues.apache.org/jira/browse/HADOOP-10563) | Remove the dependency of jsp in trunk |  Major | . | Haohui Mai | Haohui Mai |
@@ -221,7 +227,6 @@
 | [HDFS-7252](https://issues.apache.org/jira/browse/HDFS-7252) | small refinement to the use of isInAnEZ in FSNamesystem |  Trivial | . | Yi Liu | Yi Liu |
 | [HDFS-7242](https://issues.apache.org/jira/browse/HDFS-7242) | Code improvement for FSN#checkUnreadableBySuperuser |  Minor | namenode | Yi Liu | Yi Liu |
 | [HDFS-7223](https://issues.apache.org/jira/browse/HDFS-7223) | Tracing span description of IPC client is too long |  Minor | . | Masatake Iwasaki | Masatake Iwasaki |
-| [HDFS-7210](https://issues.apache.org/jira/browse/HDFS-7210) | Avoid two separate RPC's namenode.append() and namenode.getFileInfo() for an append call from DFSClient |  Major | hdfs-client, namenode | Vinayakumar B | Vinayakumar B |
 | [HDFS-7190](https://issues.apache.org/jira/browse/HDFS-7190) | Bad use of Preconditions in startFileInternal() |  Major | namenode | Konstantin Shvachko | Dawson Choong |
 | [HDFS-7186](https://issues.apache.org/jira/browse/HDFS-7186) | Document the "hadoop trace" command. |  Minor | documentation | Masatake Iwasaki | Masatake Iwasaki |
 | [HDFS-7182](https://issues.apache.org/jira/browse/HDFS-7182) | JMX metrics aren't accessible when NN is busy |  Major | . | Ming Ma | Ming Ma |
@@ -231,7 +236,7 @@
 | [HDFS-6741](https://issues.apache.org/jira/browse/HDFS-6741) | Improve permission denied message when FSPermissionChecker#checkOwner fails |  Trivial | . | Stephen Chu | Harsh J |
 | [HDFS-6735](https://issues.apache.org/jira/browse/HDFS-6735) | A minor optimization to avoid pread() be blocked by read() inside the same DFSInputStream |  Major | hdfs-client | Liang Xie | Lars Hofhansl |
 | [HDFS-6565](https://issues.apache.org/jira/browse/HDFS-6565) | Use jackson instead jetty json in hdfs-client |  Major | . | Haohui Mai | Akira AJISAKA |
-| [HDFS-6133](https://issues.apache.org/jira/browse/HDFS-6133) | Make Balancer support exclude specified path |  Major | balancer & mover, datanode | zhaoyunjiong | zhaoyunjiong |
+| [HDFS-6133](https://issues.apache.org/jira/browse/HDFS-6133) | Add a feature for replica pinning so that a pinned replica will not be moved by Balancer/Mover. |  Major | balancer & mover, datanode | zhaoyunjiong | zhaoyunjiong |
 | [HDFS-5853](https://issues.apache.org/jira/browse/HDFS-5853) | Add "hadoop.user.group.metrics.percentiles.intervals" to hdfs-default.xml |  Minor | documentation, namenode | Akira AJISAKA | Akira AJISAKA |
 | [HDFS-3342](https://issues.apache.org/jira/browse/HDFS-3342) | SocketTimeoutException in BlockSender.sendChunks could have a better error message |  Minor | datanode | Todd Lipcon | Yongjun Zhang |
 | [HDFS-2219](https://issues.apache.org/jira/browse/HDFS-2219) | Fsck should work with fully qualified file paths. |  Minor | tools | Jitendra Nath Pandey | Tsz Wo Nicholas Sze |
@@ -449,6 +454,7 @@
 | [HADOOP-10953](https://issues.apache.org/jira/browse/HADOOP-10953) | NetworkTopology#add calls NetworkTopology#toString without holding the netlock |  Minor | net | Liang Xie | Liang Xie |
 | [HADOOP-10852](https://issues.apache.org/jira/browse/HADOOP-10852) | NetgroupCache is not thread-safe |  Major | security | Benoy Antony | Benoy Antony |
 | [HADOOP-10840](https://issues.apache.org/jira/browse/HADOOP-10840) | Fix OutOfMemoryError caused by metrics system in Azure File System |  Major | metrics | shanyu zhao | shanyu zhao |
+| [HADOOP-10786](https://issues.apache.org/jira/browse/HADOOP-10786) | Fix UGI#reloginFromKeytab on Java 8 |  Major | security | Tobi Vollebregt | Stephen Chu |
 | [HADOOP-10748](https://issues.apache.org/jira/browse/HADOOP-10748) | HttpServer2 should not load JspServlet |  Major | . | Haohui Mai | Haohui Mai |
 | [HADOOP-10717](https://issues.apache.org/jira/browse/HADOOP-10717) | HttpServer2 should load jsp DTD from local jars instead of going remote |  Blocker | . | Dapeng Sun | Dapeng Sun |
 | [HADOOP-10714](https://issues.apache.org/jira/browse/HADOOP-10714) | AmazonS3Client.deleteObjects() need to be limited to 1000 entries per call |  Critical | fs/s3 | David S. Wang | Juan Yu |
@@ -479,7 +485,7 @@
 | [HDFS-7960](https://issues.apache.org/jira/browse/HDFS-7960) | The full block report should prune zombie storages even if they're not empty |  Critical | . | Lei (Eddy) Xu | Colin Patrick McCabe |
 | [HDFS-7957](https://issues.apache.org/jira/browse/HDFS-7957) | Truncate should verify quota before making changes |  Critical | namenode | Jing Zhao | Jing Zhao |
 | [HDFS-7956](https://issues.apache.org/jira/browse/HDFS-7956) | Improve logging for DatanodeRegistration. |  Major | namenode | Konstantin Shvachko | Plamen Jeliazkov |
-| [HDFS-7953](https://issues.apache.org/jira/browse/HDFS-7953) | NN Web UI fails to navigate to paths that contain # |  Minor | namenode | kanaka kumar avvaru | kanaka kumar avvaru |
+| [HDFS-7953](https://issues.apache.org/jira/browse/HDFS-7953) | NN Web UI fails to navigate to paths that contain # |  Minor | namenode | Kanaka Kumar Avvaru | Kanaka Kumar Avvaru |
 | [HDFS-7945](https://issues.apache.org/jira/browse/HDFS-7945) | The WebHdfs system on DN does not honor the length parameter |  Blocker | . | Haohui Mai | Haohui Mai |
 | [HDFS-7943](https://issues.apache.org/jira/browse/HDFS-7943) | Append cannot handle the last block with length greater than the preferred block size |  Blocker | . | Jing Zhao | Jing Zhao |
 | [HDFS-7942](https://issues.apache.org/jira/browse/HDFS-7942) | NFS: support regexp grouping in nfs.exports.allowed.hosts |  Major | nfs | Brandon Li | Brandon Li |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.0/RELEASENOTES.2.7.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.0/RELEASENOTES.2.7.0.md
index e429b224a54..d8c4b7cae09 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.0/RELEASENOTES.2.7.0.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.0/RELEASENOTES.2.7.0.md
@@ -18,7 +18,7 @@
 -->
 # Apache Hadoop  2.7.0 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
@@ -28,13 +28,6 @@ These release notes cover new developer and user-facing incompatibilities, featu
 ProtocolBuffer is packaged in Ubuntu
 
 
----
-
-* [HADOOP-11729](https://issues.apache.org/jira/browse/HADOOP-11729) | *Minor* | **Fix link to cgroups doc in site.xml**
-
-Committed this to trunk, branch-2, and branch-2.7. Thanks Masatake for your contribution!
-
-
 ---
 
 * [HADOOP-11498](https://issues.apache.org/jira/browse/HADOOP-11498) | *Major* | **Bump the version of HTrace to 3.1.0-incubating**
@@ -42,23 +35,18 @@ Committed this to trunk, branch-2, and branch-2.7. Thanks Masatake for your cont
 **WARNING: No release note provided for this incompatible change.**
 
 
----
-
-* [HADOOP-11497](https://issues.apache.org/jira/browse/HADOOP-11497) | *Major* | **Fix typo in ClusterSetup.html#Hadoop\_Startup**
-
-Correct startup command for cluster data nodes
-
-
 ---
 
 * [HADOOP-11492](https://issues.apache.org/jira/browse/HADOOP-11492) | *Major* | **Bump up curator version to 2.7.1**
 
+<!-- markdown -->
 Apache Curator version change: Apache Hadoop has updated the version of Apache Curator used from 2.6.0 to 2.7.1. This change should be binary and source compatible for the majority of downstream users. Notable exceptions:
-# Binary incompatible change: org.apache.curator.utils.PathUtils.validatePath(String) changed return types. Downstream users of this method will need to recompile.
-# Source incompatible change: org.apache.curator.framework.recipes.shared.SharedCountReader added a method to its interface definition. Downstream users with custom implementations of this interface can continue without binary compatibility problems but will need to modify their source code to recompile.
-# Source incompatible change: org.apache.curator.framework.recipes.shared.SharedValueReader added a method to its interface definition. Downstream users with custom implementations of this interface can continue without binary compatibility problems but will need to modify their source code to recompile.
 
-Downstream users are reminded that while the Hadoop community will attempt to avoid egregious incompatible dependency changes, there is currently no policy around when Hadoop's exposed dependencies will change across versions (ref http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/Compatibility.html#Java\_Classpath).
+* Binary incompatible change: org.apache.curator.utils.PathUtils.validatePath(String) changed return types. Downstream users of this method will need to recompile.
+* Source incompatible change: org.apache.curator.framework.recipes.shared.SharedCountReader added a method to its interface definition. Downstream users with custom implementations of this interface can continue without binary compatibility problems but will need to modify their source code to recompile.
+* Source incompatible change: org.apache.curator.framework.recipes.shared.SharedValueReader added a method to its interface definition. Downstream users with custom implementations of this interface can continue without binary compatibility problems but will need to modify their source code to recompile.
+
+Downstream users are reminded that while the Hadoop community will attempt to avoid egregious incompatible dependency changes, there is currently no policy around when Hadoop's exposed dependencies will change across versions (ref http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/Compatibility.html#Java_Classpath ).
 
 
 ---
@@ -86,13 +74,6 @@ fs.s3a.max.total.tasks:    the maximum number of tasks that the LinkedBlockingQu
 **WARNING: No release note provided for this incompatible change.**
 
 
----
-
-* [HADOOP-11348](https://issues.apache.org/jira/browse/HADOOP-11348) | *Minor* | **Remove unused variable from CMake error message for finding openssl**
-
-Test failure is unrelated.  Committed to 2.7.  Thanks, Dian.
-
-
 ---
 
 * [HADOOP-11311](https://issues.apache.org/jira/browse/HADOOP-11311) | *Major* | **Restrict uppercase key names from being created with JCEKS**
@@ -146,13 +127,6 @@ Updated the required packages / version numbers from the trunk branch version of
 New fs -find command
 
 
----
-
-* [HDFS-8001](https://issues.apache.org/jira/browse/HDFS-8001) | *Trivial* | **RpcProgramNfs3 : wrong parsing of dfs.blocksize**
-
-patch is fully backward compatible.
-
-
 ---
 
 * [HDFS-7806](https://issues.apache.org/jira/browse/HDFS-7806) | *Minor* | **Refactor: move StorageType from hadoop-hdfs to hadoop-common**
@@ -175,13 +149,6 @@ LibHDFS now supports 32-bit build targets on Windows.
 2. Added {{SetQuotaByStorageType}} API and {{-storagetype}} option for  {{hdfs dfsadmin -setSpaceQuota/-clrSpaceQuota}} commands to allow set/clear quota by storage type under the target directory.
 
 
----
-
-* [HDFS-7457](https://issues.apache.org/jira/browse/HDFS-7457) | *Major* | **DatanodeID generates excessive garbage**
-
-Thanks for the reviews, gentlemen. I've committed this to trunk and branch-2. Thanks for identifying and working on the issue, Daryn.
-
-
 ---
 
 * [HDFS-7411](https://issues.apache.org/jira/browse/HDFS-7411) | *Major* | **Refactor and improve decommissioning logic into DecommissionManager**
@@ -191,17 +158,16 @@ This change introduces a new configuration key used to throttle decommissioning
 
 ---
 
-* [HDFS-7326](https://issues.apache.org/jira/browse/HDFS-7326) | *Minor* | **Add documentation for hdfs debug commands**
+* [HDFS-7270](https://issues.apache.org/jira/browse/HDFS-7270) | *Major* | **Add congestion signaling capability to DataNode write protocol**
 
-Added documentation for the hdfs debug commands to the following URL in the documentation website.
+Introduced a new configuration dfs.pipeline.ecn. When the configuration is turned on, DataNodes will signal in the writing pipelines when they are overloaded. The client can back off based on this congestion signal to avoid overloading the system.
 
-hadoop-project-dist/hadoop-hdfs/HDFSCommands.html
 
-In order to view the new documentation, build the website in a staging area:
-$ mvn clean site; mvn site:stage -DstagingDirectory=/tmp/hadoop-site
+---
 
-Point your browser to 
-file:///tmp/hadoop-site/hadoop-project/hadoop-project-dist/hadoop-hdfs/HDFSCommands.html
+* [HDFS-7210](https://issues.apache.org/jira/browse/HDFS-7210) | *Major* | **Avoid two separate RPC's namenode.append() and namenode.getFileInfo() for an append call from DFSClient**
+
+**WARNING: No release note provided for this incompatible change.**
 
 
 ---
@@ -220,9 +186,9 @@ file:///tmp/hadoop-site/hadoop-project/hadoop-project-dist/hadoop-hdfs/HDFSComma
 
 ---
 
-* [HDFS-6133](https://issues.apache.org/jira/browse/HDFS-6133) | *Major* | **Make Balancer support exclude specified path**
+* [HDFS-6133](https://issues.apache.org/jira/browse/HDFS-6133) | *Major* | **Add a feature for replica pinning so that a pinned replica will not be moved by Balancer/Mover.**
 
-Add a feature for replica pinning so that when a replica is pinned in a datanode, it will not be moved by Balancer/Mover.  The replica pinning feature can be enabled/disabled by "dfs.datanode.block-pinning.enabled", where the default is false.
+Add a feature for replica pinning so that when a replica is pinned in a datanode, it will not be moved by Balancer/Mover. The replica pinning feature can be enabled/disabled by "dfs.datanode.block-pinning.enabled", where the default is false.
 
 
 ---
@@ -252,6 +218,7 @@ Based on the reconfiguration framework provided by HADOOP-7001, enable reconfigu
 
 * [MAPREDUCE-5583](https://issues.apache.org/jira/browse/MAPREDUCE-5583) | *Major* | **Ability to limit running map and reduce tasks**
 
+<!-- markdown -->
 This introduces two new MR2 job configs, mentioned below, which allow users to control the maximum simultaneously-running tasks of the submitted job, across the cluster:
 
 * mapreduce.job.running.map.limit (default: 0, for no limit)
@@ -274,22 +241,4 @@ Removed commons-httpclient dependency from hadoop-yarn-server-web-proxy module.
 Applications which made use of the LogAggregationContext in their application will need to revisit this code in order to make sure that their logs continue to get rolled out.
 
 
----
-
-* [YARN-2230](https://issues.apache.org/jira/browse/YARN-2230) | *Minor* | **Fix description of yarn.scheduler.maximum-allocation-vcores in yarn-default.xml (or code)**
-
-I have modified the description of the yarn.scheduler.maximum-allocation-vcores setting in yarn-default.xml to be reflective of the actual behavior (throw InvalidRequestException when the limit is crossed).
-
-Since this is a documentation change, I have not added any test cases.
-
-Please review the patch, thanks!
-
-
----
-
-* [YARN-1904](https://issues.apache.org/jira/browse/YARN-1904) | *Major* | **Uniform the XXXXNotFound messages from ClientRMService and ApplicationHistoryClientService**
-
-I just committed this. Thanks Zhijie!
-
-
 
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.1/CHANGES.2.7.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.1/CHANGES.2.7.1.md
index ed9100e6fa4..114b266fc35 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.1/CHANGES.2.7.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.1/CHANGES.2.7.1.md
@@ -22,6 +22,13 @@
 
 ### INCOMPATIBLE CHANGES:
 
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-8226](https://issues.apache.org/jira/browse/HDFS-8226) | Non-HA rollback compatibility broken |  Blocker | . | J.Andreina | J.Andreina |
+
+
+### IMPORTANT ISSUES:
+
 | JIRA | Summary | Priority | Component | Reporter | Contributor |
 |:---- |:---- | :--- |:---- |:---- |:---- |
 
@@ -67,10 +74,10 @@
 | [HADOOP-11663](https://issues.apache.org/jira/browse/HADOOP-11663) | Remove description about Java 6 from docs |  Minor | documentation | Masatake Iwasaki | Masatake Iwasaki |
 | [HADOOP-9658](https://issues.apache.org/jira/browse/HADOOP-9658) | SnappyCodec#checkNativeCodeLoaded may unexpectedly fail when native code is not loaded |  Major | . | Zhijie Shen | Zhijie Shen |
 | [HDFS-8681](https://issues.apache.org/jira/browse/HDFS-8681) | BlockScanner is incorrectly disabled by default |  Blocker | datanode | Andrew Wang | Arpit Agarwal |
-| [HDFS-8633](https://issues.apache.org/jira/browse/HDFS-8633) | Fix setting of dfs.datanode.readahead.bytes in hdfs-default.xml to match DFSConfigKeys |  Minor | HDFS | Ray Chiang | Ray Chiang |
-| [HDFS-8626](https://issues.apache.org/jira/browse/HDFS-8626) | Reserved RBW space is not released if creation of RBW File fails |  Blocker | . | kanaka kumar avvaru | kanaka kumar avvaru |
+| [HDFS-8633](https://issues.apache.org/jira/browse/HDFS-8633) | Fix setting of dfs.datanode.readahead.bytes in hdfs-default.xml to match DFSConfigKeys |  Minor | datanode | Ray Chiang | Ray Chiang |
+| [HDFS-8626](https://issues.apache.org/jira/browse/HDFS-8626) | Reserved RBW space is not released if creation of RBW File fails |  Blocker | . | Kanaka Kumar Avvaru | Kanaka Kumar Avvaru |
 | [HDFS-8600](https://issues.apache.org/jira/browse/HDFS-8600) | TestWebHdfsFileSystemContract.testGetFileBlockLocations fails in branch-2.7 |  Major | webhdfs | Arpit Agarwal | Arpit Agarwal |
-| [HDFS-8596](https://issues.apache.org/jira/browse/HDFS-8596) | TestDistributedFileSystem et al tests are broken in branch-2 due to incorrect setting of "datanode" attribute |  Blocker | HDFS | Yongjun Zhang | Yongjun Zhang |
+| [HDFS-8596](https://issues.apache.org/jira/browse/HDFS-8596) | TestDistributedFileSystem et al tests are broken in branch-2 due to incorrect setting of "datanode" attribute |  Blocker | datanode | Yongjun Zhang | Yongjun Zhang |
 | [HDFS-8595](https://issues.apache.org/jira/browse/HDFS-8595) | TestCommitBlockSynchronization fails in branch-2.7 |  Major | test | Arpit Agarwal | Arpit Agarwal |
 | [HDFS-8583](https://issues.apache.org/jira/browse/HDFS-8583) | Document that NFS gateway does not work with rpcbind on SLES 11 |  Major | documentation | Arpit Agarwal | Arpit Agarwal |
 | [HDFS-8576](https://issues.apache.org/jira/browse/HDFS-8576) |  Lease recovery should return true if the lease can be released and the file can be closed |  Major | namenode | J.Andreina | J.Andreina |
@@ -89,7 +96,6 @@
 | [HDFS-8270](https://issues.apache.org/jira/browse/HDFS-8270) | create() always retried with hardcoded timeout when file already exists with open lease |  Major | hdfs-client | Andrey Stepachev | J.Andreina |
 | [HDFS-8269](https://issues.apache.org/jira/browse/HDFS-8269) | getBlockLocations() does not resolve the .reserved path and generates incorrect edit logs when updating the atime |  Blocker | . | Yesha Vora | Haohui Mai |
 | [HDFS-8245](https://issues.apache.org/jira/browse/HDFS-8245) | Standby namenode doesn't process DELETED\_BLOCK if the add block request is in edit log. |  Major | . | Rushabh S Shah | Rushabh S Shah |
-| [HDFS-8226](https://issues.apache.org/jira/browse/HDFS-8226) | Non-HA rollback compatibility broken |  Blocker | . | J.Andreina | J.Andreina |
 | [HDFS-8213](https://issues.apache.org/jira/browse/HDFS-8213) | DFSClient should use hdfs.client.htrace HTrace configuration prefix rather than hadoop.htrace |  Critical | . | Billie Rinaldi | Colin Patrick McCabe |
 | [HDFS-8179](https://issues.apache.org/jira/browse/HDFS-8179) | DFSClient#getServerDefaults returns null within 1 hour of system start |  Blocker | . | Xiaoyu Yao | Xiaoyu Yao |
 | [HDFS-8163](https://issues.apache.org/jira/browse/HDFS-8163) | Using monotonicNow for block report scheduling causes test failures on recently restarted systems |  Blocker | datanode | Arpit Agarwal | Arpit Agarwal |
@@ -98,7 +104,7 @@
 | [HDFS-8149](https://issues.apache.org/jira/browse/HDFS-8149) | The footer of the Web UI "Hadoop, 2014" is old |  Major | . | Akira AJISAKA | Brahma Reddy Battula |
 | [HDFS-8147](https://issues.apache.org/jira/browse/HDFS-8147) | Mover should not schedule two replicas to the same DN storage |  Major | balancer & mover | Surendra Singh Lilhore | Surendra Singh Lilhore |
 | [HDFS-8127](https://issues.apache.org/jira/browse/HDFS-8127) | NameNode Failover during HA upgrade can cause DataNode to finalize upgrade |  Blocker | ha | Jing Zhao | Jing Zhao |
-| [HDFS-8091](https://issues.apache.org/jira/browse/HDFS-8091) | ACLStatus and XAttributes not properly presented to INodeAttributesProvider before returning to client |  Major | HDFS | Arun Suresh | Arun Suresh |
+| [HDFS-8091](https://issues.apache.org/jira/browse/HDFS-8091) | ACLStatus and XAttributes not properly presented to INodeAttributesProvider before returning to client |  Major | namenode | Arun Suresh | Arun Suresh |
 | [HDFS-8081](https://issues.apache.org/jira/browse/HDFS-8081) | Split getAdditionalBlock() into two methods. |  Major | . | Konstantin Shvachko | Konstantin Shvachko |
 | [HDFS-8070](https://issues.apache.org/jira/browse/HDFS-8070) | Pre-HDFS-7915 DFSClient cannot use short circuit on post-HDFS-7915 DataNode |  Blocker | caching | Gopal V | Colin Patrick McCabe |
 | [HDFS-7980](https://issues.apache.org/jira/browse/HDFS-7980) | Incremental BlockReport will dramatically slow down the startup of  a namenode |  Major | . | Hui Zheng | Walter Su |
@@ -181,6 +187,7 @@
 | [YARN-3609](https://issues.apache.org/jira/browse/YARN-3609) | Move load labels from storage from serviceInit to serviceStart to make it works with RM HA case. |  Major | resourcemanager | Wangda Tan | Wangda Tan |
 | [YARN-3544](https://issues.apache.org/jira/browse/YARN-3544) | AM logs link missing in the RM UI for a completed app |  Blocker | . | Hitesh Shah | Xuan Gong |
 | [YARN-3487](https://issues.apache.org/jira/browse/YARN-3487) | CapacityScheduler scheduler lock obtained unnecessarily when calling getQueue |  Critical | capacityscheduler | Jason Lowe | Jason Lowe |
+| [YARN-3301](https://issues.apache.org/jira/browse/YARN-3301) | Fix the format issue of the new RM web UI and AHS web UI after YARN-3272 / YARN-3262 |  Major | resourcemanager | Xuan Gong | Xuan Gong |
 | [YARN-3006](https://issues.apache.org/jira/browse/YARN-3006) | Improve the error message when attempting manual failover with auto-failover enabled |  Minor | . | Akira AJISAKA | Akira AJISAKA |
 | [YARN-2918](https://issues.apache.org/jira/browse/YARN-2918) | Don't fail RM if queue's configured labels are not existed in cluster-node-labels |  Major | resourcemanager | Rohith Sharma K S | Wangda Tan |
 | [YARN-2900](https://issues.apache.org/jira/browse/YARN-2900) | Application (Attempt and Container) Not Found in AHS results in Internal Server Error (500) |  Major | timelineserver | Jonathan Eagles | Mit Desai |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.1/RELEASENOTES.2.7.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.1/RELEASENOTES.2.7.1.md
index 2b62c13002a..1645e0803f9 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.1/RELEASENOTES.2.7.1.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.1/RELEASENOTES.2.7.1.md
@@ -18,16 +18,17 @@
 -->
 # Apache Hadoop  2.7.1 Release Notes
 
-These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
 
 
 ---
 
 * [HDFS-8486](https://issues.apache.org/jira/browse/HDFS-8486) | *Blocker* | **DN startup may cause severe data loss**
 
+<!-- markdown -->
 Public service notice:
-- Every restart of a 2.6.x or 2.7.0 DN incurs a risk of unwanted block deletion.
-- Apply this patch if you are running a pre-2.7.1 release.
+* Every restart of a 2.6.x or 2.7.0 DN incurs a risk of unwanted block deletion.
+* Apply this patch if you are running a pre-2.7.1 release.
 
 
 ---
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.2/CHANGES.2.7.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.2/CHANGES.2.7.2.md
new file mode 100644
index 00000000000..2ece330dc40
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.2/CHANGES.2.7.2.md
@@ -0,0 +1,224 @@
+
+<!---
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+-->
+# Apache Hadoop Changelog
+
+## Release 2.7.2 - 2016-01-25
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-7645](https://issues.apache.org/jira/browse/HDFS-7645) | Rolling upgrade is restoring blocks from trash multiple times |  Major | datanode | Nathan Roberts | Keisuke Ogiwara |
+
+
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-12825](https://issues.apache.org/jira/browse/HADOOP-12825) | Log slow name resolutions |  Major | . | Sidharta Seethana | Sidharta Seethana |
+| [HADOOP-12413](https://issues.apache.org/jira/browse/HADOOP-12413) | AccessControlList should avoid calling getGroupNames in isUserInList with empty groups. |  Major | security | zhihai xu | zhihai xu |
+| [HADOOP-12280](https://issues.apache.org/jira/browse/HADOOP-12280) | Skip unit tests based on maven profile rather than NativeCodeLoader.isNativeCodeLoaded |  Minor | test | Masatake Iwasaki | Masatake Iwasaki |
+| [HADOOP-12232](https://issues.apache.org/jira/browse/HADOOP-12232) | Upgrade Tomcat dependency to 6.0.44. |  Major | build | Chris Nauroth | Chris Nauroth |
+| [HADOOP-11812](https://issues.apache.org/jira/browse/HADOOP-11812) | Implement listLocatedStatus for ViewFileSystem to speed up split calculation |  Blocker | fs | Gera Shegalov | Gera Shegalov |
+| [HADOOP-7139](https://issues.apache.org/jira/browse/HADOOP-7139) | Allow appending to existing SequenceFiles |  Major | io | Stephen Rose | Kanaka Kumar Avvaru |
+| [HADOOP-5323](https://issues.apache.org/jira/browse/HADOOP-5323) | Trash documentation should describe its directory structure and configurations |  Minor | documentation | Suman Sehgal | Weiwei Yang |
+| [HDFS-9434](https://issues.apache.org/jira/browse/HDFS-9434) | Recommission a datanode with 500k blocks may pause NN for 30 seconds |  Major | namenode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HDFS-9221](https://issues.apache.org/jira/browse/HDFS-9221) | HdfsServerConstants#ReplicaState#getState should avoid calling values() since it creates a temporary array |  Major | performance | Staffan Friberg | Staffan Friberg |
+| [HDFS-8722](https://issues.apache.org/jira/browse/HDFS-8722) | Optimize datanode writes for small writes and flushes |  Critical | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-8659](https://issues.apache.org/jira/browse/HDFS-8659) | Block scanner INFO message is spamming logs |  Major | datanode | Yongjun Zhang | Yongjun Zhang |
+| [HDFS-8384](https://issues.apache.org/jira/browse/HDFS-8384) | Allow NN to startup if there are files having a lease but are not under construction |  Minor | namenode | Tsz Wo Nicholas Sze | Jing Zhao |
+| [HDFS-7314](https://issues.apache.org/jira/browse/HDFS-7314) | When the DFSClient lease cannot be renewed, abort open-for-write files rather than the entire DFSClient |  Major | . | Ming Ma | Ming Ma |
+| [YARN-4158](https://issues.apache.org/jira/browse/YARN-4158) | Remove duplicate close for LogWriter in AppLogAggregatorImpl#uploadLogsForContainers |  Minor | nodemanager | zhihai xu | zhihai xu |
+| [YARN-3978](https://issues.apache.org/jira/browse/YARN-3978) | Configurably turn off the saving of container info in Generic AHS |  Major | timelineserver, yarn | Eric Payne | Eric Payne |
+| [YARN-3727](https://issues.apache.org/jira/browse/YARN-3727) | For better error recovery, check if the directory exists before using it for localization. |  Major | nodemanager | zhihai xu | zhihai xu |
+| [YARN-3248](https://issues.apache.org/jira/browse/YARN-3248) | Display count of nodes blacklisted by apps in the web UI |  Major | capacityscheduler, resourcemanager | Varun Vasudev | Varun Vasudev |
+| [YARN-3170](https://issues.apache.org/jira/browse/YARN-3170) | YARN architecture document needs updating |  Major | documentation | Allen Wittenauer | Brahma Reddy Battula |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-12577](https://issues.apache.org/jira/browse/HADOOP-12577) | Bump up commons-collections version to 3.2.2 to address a security flaw |  Blocker | build, security | Wei-Chiu Chuang | Wei-Chiu Chuang |
+| [HADOOP-12526](https://issues.apache.org/jira/browse/HADOOP-12526) | [Branch-2] there are duplicate dependency definitions in pom's |  Major | build | Sangjin Lee | Sangjin Lee |
+| [HADOOP-12465](https://issues.apache.org/jira/browse/HADOOP-12465) | Incorrect javadoc in WritableUtils.java |  Minor | documentation | Martin Petricek | Jagadesh Kiran N |
+| [HADOOP-12464](https://issues.apache.org/jira/browse/HADOOP-12464) | Interrupted client may try to fail-over and retry |  Major | ipc | Kihwal Lee | Kihwal Lee |
+| [HADOOP-12451](https://issues.apache.org/jira/browse/HADOOP-12451) | [Branch-2] Setting HADOOP\_HOME explicitly should be allowed |  Blocker | scripts | Karthik Kambatla | Karthik Kambatla |
+| [HADOOP-12415](https://issues.apache.org/jira/browse/HADOOP-12415) | hdfs and nfs builds broken on -missing compile-time dependency on netty |  Major | nfs | Konstantin Boudnik | Tom Zeng |
+| [HADOOP-12359](https://issues.apache.org/jira/browse/HADOOP-12359) | hadoop fs -getmerge doc is wrong |  Major | documentation | Daniel Templeton | Jagadesh Kiran N |
+| [HADOOP-12304](https://issues.apache.org/jira/browse/HADOOP-12304) | Applications using FileContext fail with the default file system configured to be wasb/s3/etc. |  Blocker | fs | Chris Nauroth | Chris Nauroth |
+| [HADOOP-12230](https://issues.apache.org/jira/browse/HADOOP-12230) | hadoop-project declares duplicate, conflicting curator dependencies |  Minor | build | Steve Loughran | Rakesh R |
+| [HADOOP-12213](https://issues.apache.org/jira/browse/HADOOP-12213) | Interrupted exception can occur when Client#stop is called |  Minor | . | Oleg Zhurakousky | Kuhu Shukla |
+| [HADOOP-12191](https://issues.apache.org/jira/browse/HADOOP-12191) | Bzip2Factory is not thread safe |  Major | io | Jason Lowe | Brahma Reddy Battula |
+| [HADOOP-12186](https://issues.apache.org/jira/browse/HADOOP-12186) | ActiveStandbyElector shouldn't call monitorLockNodeAsync multiple times |  Major | ha | zhihai xu | zhihai xu |
+| [HADOOP-12006](https://issues.apache.org/jira/browse/HADOOP-12006) | Remove unimplemented option for `hadoop fs -ls` from document in branch-2.7 |  Major | . | Akira AJISAKA | Akira AJISAKA |
+| [HADOOP-11932](https://issues.apache.org/jira/browse/HADOOP-11932) |  MetricsSinkAdapter hangs when being stopped |  Critical | . | Jian He | Brahma Reddy Battula |
+| [HADOOP-11491](https://issues.apache.org/jira/browse/HADOOP-11491) | HarFs incorrectly declared as requiring an authority |  Critical | fs | Gera Shegalov | Brahma Reddy Battula |
+| [HADOOP-10365](https://issues.apache.org/jira/browse/HADOOP-10365) | BufferedOutputStream in FileUtil#unpackEntries() should be closed in finally block |  Minor | util | Ted Yu | Kiran Kumar M R |
+| [HADOOP-9242](https://issues.apache.org/jira/browse/HADOOP-9242) | Duplicate surefire plugin config in hadoop-common |  Major | test | Andrey Klochkov | Andrey Klochkov |
+| [HADOOP-8151](https://issues.apache.org/jira/browse/HADOOP-8151) | Error handling in snappy decompressor throws invalid exceptions |  Major | io, native | Todd Lipcon | Matt Foley |
+| [HDFS-9574](https://issues.apache.org/jira/browse/HDFS-9574) | Reduce client failures during datanode restart |  Major | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-9470](https://issues.apache.org/jira/browse/HDFS-9470) | Encryption zone on root not loaded from fsimage after NN restart |  Critical | . | Xiao Chen | Xiao Chen |
+| [HDFS-9445](https://issues.apache.org/jira/browse/HDFS-9445) | Datanode may deadlock while handling a bad volume |  Blocker | . | Kihwal Lee | Walter Su |
+| [HDFS-9431](https://issues.apache.org/jira/browse/HDFS-9431) | DistributedFileSystem#concat fails if the target path is relative. |  Major | hdfs-client | Kazuho Fujii | Kazuho Fujii |
+| [HDFS-9426](https://issues.apache.org/jira/browse/HDFS-9426) | Rollingupgrade finalization is not backward compatible |  Blocker | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-9413](https://issues.apache.org/jira/browse/HDFS-9413) | getContentSummary() on standby should throw StandbyException |  Critical | . | Brahma Reddy Battula | Brahma Reddy Battula |
+| [HDFS-9317](https://issues.apache.org/jira/browse/HDFS-9317) | Document fsck -blockId and -storagepolicy options in branch-2.7 |  Major | documentation | Akira AJISAKA | Akira AJISAKA |
+| [HDFS-9305](https://issues.apache.org/jira/browse/HDFS-9305) | Delayed heartbeat processing causes storm of subsequent heartbeats |  Major | datanode | Chris Nauroth | Arpit Agarwal |
+| [HDFS-9294](https://issues.apache.org/jira/browse/HDFS-9294) | DFSClient  deadlock when close file and failed to renew lease |  Blocker | hdfs-client | DENG FEI | Brahma Reddy Battula |
+| [HDFS-9290](https://issues.apache.org/jira/browse/HDFS-9290) | DFSClient#callAppend() is not backward compatible for slightly older NameNodes |  Blocker | . | Tony Wu | Tony Wu |
+| [HDFS-9289](https://issues.apache.org/jira/browse/HDFS-9289) | Make DataStreamer#block thread safe and verify genStamp in commitBlock |  Critical | . | Chang Li | Chang Li |
+| [HDFS-9273](https://issues.apache.org/jira/browse/HDFS-9273) | ACLs on root directory may be lost after NN restart |  Critical | namenode | Xiao Chen | Xiao Chen |
+| [HDFS-9220](https://issues.apache.org/jira/browse/HDFS-9220) | Reading small file (\< 512 bytes) that is open for append fails due to incorrect checksum |  Blocker | . | Bogdan Raducanu | Jing Zhao |
+| [HDFS-9178](https://issues.apache.org/jira/browse/HDFS-9178) | Slow datanode I/O can cause a wrong node to be marked bad |  Critical | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-9106](https://issues.apache.org/jira/browse/HDFS-9106) | Transfer failure during pipeline recovery causes permanent write failures |  Critical | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-9083](https://issues.apache.org/jira/browse/HDFS-9083) | Replication violates block placement policy. |  Blocker | namenode | Rushabh S Shah | Rushabh S Shah |
+| [HDFS-9043](https://issues.apache.org/jira/browse/HDFS-9043) | Doc updation for commands in HDFS Federation |  Minor | documentation | J.Andreina | J.Andreina |
+| [HDFS-9042](https://issues.apache.org/jira/browse/HDFS-9042) | Update document for the Storage policy name |  Minor | documentation | J.Andreina | J.Andreina |
+| [HDFS-9033](https://issues.apache.org/jira/browse/HDFS-9033) | dfsadmin -metasave prints "NaN" for cache used% |  Major | . | Archana T | Brahma Reddy Battula |
+| [HDFS-8995](https://issues.apache.org/jira/browse/HDFS-8995) | Flaw in registration bookeeping can make DN die on reconnect |  Critical | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-8950](https://issues.apache.org/jira/browse/HDFS-8950) | NameNode refresh doesn't remove DataNodes that are no longer in the allowed list |  Major | datanode, namenode | Daniel Templeton | Daniel Templeton |
+| [HDFS-8891](https://issues.apache.org/jira/browse/HDFS-8891) | HDFS concat should keep srcs order |  Blocker | . | Yong Zhang | Yong Zhang |
+| [HDFS-8879](https://issues.apache.org/jira/browse/HDFS-8879) | Quota by storage type usage incorrectly initialized upon namenode restart |  Major | namenode | Kihwal Lee | Xiaoyu Yao |
+| [HDFS-8867](https://issues.apache.org/jira/browse/HDFS-8867) | Enable optimized block reports |  Major | . | Rushabh S Shah | Daryn Sharp |
+| [HDFS-8863](https://issues.apache.org/jira/browse/HDFS-8863) | The remaining space check in BlockPlacementPolicyDefault is flawed |  Critical | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-8852](https://issues.apache.org/jira/browse/HDFS-8852) | HDFS architecture documentation of version 2.x is outdated about append write support |  Major | documentation | Hong Dai Thanh | Ajith S |
+| [HDFS-8850](https://issues.apache.org/jira/browse/HDFS-8850) | VolumeScanner thread exits with exception if there is no block pool to be scanned but there are suspicious blocks |  Major | datanode | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-8846](https://issues.apache.org/jira/browse/HDFS-8846) | Add a unit test for INotify functionality across a layout version upgrade |  Major | namenode | Zhe Zhang | Zhe Zhang |
+| [HDFS-8806](https://issues.apache.org/jira/browse/HDFS-8806) | Inconsistent metrics: number of missing blocks with replication factor 1 not properly cleared |  Major | . | Zhe Zhang | Zhe Zhang |
+| [HDFS-8767](https://issues.apache.org/jira/browse/HDFS-8767) | RawLocalFileSystem.listStatus() returns null for UNIX pipefile |  Critical | . | Haohui Mai | Kanaka Kumar Avvaru |
+| [HDFS-8676](https://issues.apache.org/jira/browse/HDFS-8676) | Delayed rolling upgrade finalization can cause heartbeat expiration and write failures |  Critical | . | Kihwal Lee | Walter Su |
+| [HDFS-8656](https://issues.apache.org/jira/browse/HDFS-8656) | Preserve compatibility of ClientProtocol#rollingUpgrade after finalization |  Critical | rolling upgrades | Andrew Wang | Andrew Wang |
+| [HDFS-8615](https://issues.apache.org/jira/browse/HDFS-8615) | Correct HTTP method in WebHDFS document |  Major | documentation | Akira AJISAKA | Brahma Reddy Battula |
+| [HDFS-8431](https://issues.apache.org/jira/browse/HDFS-8431) | hdfs crypto class not found in Windows |  Critical | scripts | Sumana Sathish | Anu Engineer |
+| [HDFS-8219](https://issues.apache.org/jira/browse/HDFS-8219) | setStoragePolicy with folder behavior is different after cluster restart |  Major | . | Peter Shi | Surendra Singh Lilhore |
+| [HDFS-8099](https://issues.apache.org/jira/browse/HDFS-8099) | Change "DFSInputStream has been closed already" message to debug log level |  Minor | hdfs-client | Charles Lamb | Charles Lamb |
+| [HDFS-8046](https://issues.apache.org/jira/browse/HDFS-8046) | Allow better control of getContentSummary |  Major | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-7725](https://issues.apache.org/jira/browse/HDFS-7725) | Incorrect "nodes in service" metrics caused all writes to fail |  Major | . | Ming Ma | Ming Ma |
+| [HDFS-7609](https://issues.apache.org/jira/browse/HDFS-7609) | Avoid retry cache collision when Standby NameNode loading edits |  Critical | namenode | Carrey Zhan | Ming Ma |
+| [HDFS-6945](https://issues.apache.org/jira/browse/HDFS-6945) | BlockManager should remove a block from excessReplicateMap and decrement ExcessBlocks metric when the block is removed |  Critical | namenode | Akira AJISAKA | Akira AJISAKA |
+| [MAPREDUCE-6549](https://issues.apache.org/jira/browse/MAPREDUCE-6549) | multibyte delimiters with LineRecordReader cause duplicate records |  Major | mrv1, mrv2 | Dustin Cote | Wilfred Spiegelenburg |
+| [MAPREDUCE-6540](https://issues.apache.org/jira/browse/MAPREDUCE-6540) | TestMRTimelineEventHandling fails |  Major | test | Sangjin Lee | Sangjin Lee |
+| [MAPREDUCE-6528](https://issues.apache.org/jira/browse/MAPREDUCE-6528) | Memory leak for HistoryFileManager.getJobSummary() |  Critical | jobhistoryserver | Junping Du | Junping Du |
+| [MAPREDUCE-6518](https://issues.apache.org/jira/browse/MAPREDUCE-6518) | Set SO\_KEEPALIVE on shuffle connections |  Major | mrv2, nodemanager | Nathan Roberts | Chang Li |
+| [MAPREDUCE-6497](https://issues.apache.org/jira/browse/MAPREDUCE-6497) | Fix wrong value of JOB\_FINISHED event in JobHistoryEventHandler |  Major | . | Shinichi Yamashita | Shinichi Yamashita |
+| [MAPREDUCE-6492](https://issues.apache.org/jira/browse/MAPREDUCE-6492) | AsyncDispatcher exit with NPE on TaskAttemptImpl#sendJHStartEventForAssignedFailTask |  Critical | . | Bibin A Chundatt | Bibin A Chundatt |
+| [MAPREDUCE-6481](https://issues.apache.org/jira/browse/MAPREDUCE-6481) | LineRecordReader may give incomplete record and wrong position/key information for uncompressed input sometimes. |  Critical | mrv2 | zhihai xu | zhihai xu |
+| [MAPREDUCE-6474](https://issues.apache.org/jira/browse/MAPREDUCE-6474) | ShuffleHandler can possibly exhaust nodemanager file descriptors |  Major | mrv2, nodemanager | Nathan Roberts | Kuhu Shukla |
+| [MAPREDUCE-6472](https://issues.apache.org/jira/browse/MAPREDUCE-6472) | MapReduce AM should have java.io.tmpdir=./tmp to be consistent with tasks |  Major | mr-am | Jason Lowe | Naganarasimha G R |
+| [MAPREDUCE-6454](https://issues.apache.org/jira/browse/MAPREDUCE-6454) | MapReduce doesn't set the HADOOP\_CLASSPATH for jar lib in distributed cache. |  Critical | . | Junping Du | Junping Du |
+| [MAPREDUCE-6451](https://issues.apache.org/jira/browse/MAPREDUCE-6451) | DistCp has incorrect chunkFilePath for multiple jobs when strategy is dynamic |  Major | distcp | Kuhu Shukla | Kuhu Shukla |
+| [MAPREDUCE-6442](https://issues.apache.org/jira/browse/MAPREDUCE-6442) | Stack trace is missing when error occurs in client protocol provider's constructor |  Major | client | Chang Li | Chang Li |
+| [MAPREDUCE-6439](https://issues.apache.org/jira/browse/MAPREDUCE-6439) | AM may fail instead of retrying if RM shuts down during the allocate call |  Critical | . | Anubhav Dhoot | Anubhav Dhoot |
+| [MAPREDUCE-6426](https://issues.apache.org/jira/browse/MAPREDUCE-6426) | TestShuffleHandler#testGetMapOutputInfo is failing |  Major | test | Devaraj K | zhihai xu |
+| [MAPREDUCE-6425](https://issues.apache.org/jira/browse/MAPREDUCE-6425) | ShuffleHandler passes wrong "base" parameter to getMapOutputInfo if mapId is not in the cache. |  Major | mrv2, nodemanager | zhihai xu | zhihai xu |
+| [MAPREDUCE-6377](https://issues.apache.org/jira/browse/MAPREDUCE-6377) | JHS sorting on state column not working in webUi |  Minor | jobhistoryserver | Bibin A Chundatt | zhihai xu |
+| [MAPREDUCE-6273](https://issues.apache.org/jira/browse/MAPREDUCE-6273) | HistoryFileManager should check whether summaryFile exists to avoid FileNotFoundException causing HistoryFileInfo into MOVE\_FAILED state |  Minor | jobhistoryserver | zhihai xu | zhihai xu |
+| [MAPREDUCE-5982](https://issues.apache.org/jira/browse/MAPREDUCE-5982) | Task attempts that fail from the ASSIGNED state can disappear |  Major | mr-am | Jason Lowe | Chang Li |
+| [MAPREDUCE-5948](https://issues.apache.org/jira/browse/MAPREDUCE-5948) | org.apache.hadoop.mapred.LineRecordReader does not handle multibyte record delimiters well |  Critical | . | Kris Geusebroek | Akira AJISAKA |
+| [MAPREDUCE-5883](https://issues.apache.org/jira/browse/MAPREDUCE-5883) | "Total megabyte-seconds" in job counters is slightly misleading |  Minor | . | Nathan Roberts | Nathan Roberts |
+| [MAPREDUCE-5649](https://issues.apache.org/jira/browse/MAPREDUCE-5649) | Reduce cannot use more than 2G memory  for the final merge |  Major | mrv2 | stanley shi | Gera Shegalov |
+| [YARN-4434](https://issues.apache.org/jira/browse/YARN-4434) | NodeManager Disk Checker parameter documentation is not correct |  Minor | documentation, nodemanager | Takashi Ohnishi | Weiwei Yang |
+| [YARN-4424](https://issues.apache.org/jira/browse/YARN-4424) | Fix deadlock in RMAppImpl |  Blocker | . | Yesha Vora | Jian He |
+| [YARN-4365](https://issues.apache.org/jira/browse/YARN-4365) | FileSystemNodeLabelStore should check for root dir existence on startup |  Major | resourcemanager | Jason Lowe | Kuhu Shukla |
+| [YARN-4354](https://issues.apache.org/jira/browse/YARN-4354) | Public resource localization fails with NPE |  Blocker | nodemanager | Jason Lowe | Jason Lowe |
+| [YARN-4348](https://issues.apache.org/jira/browse/YARN-4348) | ZKRMStateStore.syncInternal shouldn't wait for sync completion for avoiding blocking ZK's event thread |  Blocker | . | Tsuyoshi Ozawa | Tsuyoshi Ozawa |
+| [YARN-4344](https://issues.apache.org/jira/browse/YARN-4344) | NMs reconnecting with changed capabilities can lead to wrong cluster resource calculations |  Critical | resourcemanager | Varun Vasudev | Varun Vasudev |
+| [YARN-4326](https://issues.apache.org/jira/browse/YARN-4326) | Fix TestDistributedShell timeout as AHS in MiniYarnCluster no longer binds to default port 8188 |  Major | . | MENG DING | MENG DING |
+| [YARN-4321](https://issues.apache.org/jira/browse/YARN-4321) | Incessant retries if NoAuthException is thrown by Zookeeper in non HA mode |  Major | resourcemanager | Varun Saxena | Varun Saxena |
+| [YARN-4320](https://issues.apache.org/jira/browse/YARN-4320) | TestJobHistoryEventHandler fails as AHS in MiniYarnCluster no longer binds to default port 8188 |  Major | . | Varun Saxena | Varun Saxena |
+| [YARN-4313](https://issues.apache.org/jira/browse/YARN-4313) | Race condition in MiniMRYarnCluster when getting history server address |  Major | . | Jian He | Jian He |
+| [YARN-4312](https://issues.apache.org/jira/browse/YARN-4312) | TestSubmitApplicationWithRMHA fails on branch-2.7 and branch-2.6 as some of the test cases time out |  Major | . | Varun Saxena | Varun Saxena |
+| [YARN-4281](https://issues.apache.org/jira/browse/YARN-4281) | 2.7 RM app page is broken |  Blocker | . | Chang Li | Chang Li |
+| [YARN-4241](https://issues.apache.org/jira/browse/YARN-4241) | Fix typo of property name in yarn-default.xml |  Major | documentation | Anthony Rojas | Anthony Rojas |
+| [YARN-4209](https://issues.apache.org/jira/browse/YARN-4209) | RMStateStore FENCED state doesn’t work due to updateFencedState called by stateMachine.doTransition |  Critical | resourcemanager | zhihai xu | zhihai xu |
+| [YARN-4180](https://issues.apache.org/jira/browse/YARN-4180) | AMLauncher does not retry on failures when talking to NM |  Critical | resourcemanager | Anubhav Dhoot | Anubhav Dhoot |
+| [YARN-4127](https://issues.apache.org/jira/browse/YARN-4127) | RM fail with noAuth error if switched from failover mode to non-failover mode |  Major | resourcemanager | Jian He | Varun Saxena |
+| [YARN-4105](https://issues.apache.org/jira/browse/YARN-4105) | Capacity Scheduler headroom for DRF is wrong |  Major | capacityscheduler | Chang Li | Chang Li |
+| [YARN-4103](https://issues.apache.org/jira/browse/YARN-4103) | RM WebServices missing scheme for appattempts logLinks |  Major | . | Jonathan Eagles | Jonathan Eagles |
+| [YARN-4096](https://issues.apache.org/jira/browse/YARN-4096) | App local logs are leaked if log aggregation fails to initialize for the app |  Major | log-aggregation, nodemanager | Jason Lowe | Jason Lowe |
+| [YARN-4087](https://issues.apache.org/jira/browse/YARN-4087) | Followup fixes after YARN-2019 regarding RM behavior when state-store error occurs |  Major | . | Jian He | Jian He |
+| [YARN-4047](https://issues.apache.org/jira/browse/YARN-4047) | ClientRMService getApplications has high scheduler lock contention |  Major | resourcemanager | Jason Lowe | Jason Lowe |
+| [YARN-4041](https://issues.apache.org/jira/browse/YARN-4041) | Slow delegation token renewal can severely prolong RM recovery |  Major | resourcemanager | Jason Lowe | Sunil G |
+| [YARN-4009](https://issues.apache.org/jira/browse/YARN-4009) | CORS support for ResourceManager REST API |  Major | . | Prakash Ramachandran | Varun Vasudev |
+| [YARN-4005](https://issues.apache.org/jira/browse/YARN-4005) | Completed container whose app is finished is not removed from NMStateStore |  Major | . | Jun Gong | Jun Gong |
+| [YARN-4000](https://issues.apache.org/jira/browse/YARN-4000) | RM crashes with NPE if leaf queue becomes parent queue during restart |  Major | capacityscheduler, resourcemanager | Jason Lowe | Varun Saxena |
+| [YARN-3999](https://issues.apache.org/jira/browse/YARN-3999) | RM hangs on draining events |  Major | . | Jian He | Jian He |
+| [YARN-3990](https://issues.apache.org/jira/browse/YARN-3990) | AsyncDispatcher may overloaded with RMAppNodeUpdateEvent when Node is connected/disconnected |  Critical | resourcemanager | Rohith Sharma K S | Bibin A Chundatt |
+| [YARN-3975](https://issues.apache.org/jira/browse/YARN-3975) | WebAppProxyServlet should not redirect to RM page if AHS is enabled |  Major | . | Mit Desai | Mit Desai |
+| [YARN-3967](https://issues.apache.org/jira/browse/YARN-3967) | Fetch the application report from the AHS if the RM does not know about it |  Major | . | Mit Desai | Mit Desai |
+| [YARN-3925](https://issues.apache.org/jira/browse/YARN-3925) | ContainerLogsUtils#getContainerLogFile fails to read container log files from full disks. |  Critical | nodemanager | zhihai xu | zhihai xu |
+| [YARN-3905](https://issues.apache.org/jira/browse/YARN-3905) | Application History Server UI NPEs when accessing apps run after RM restart |  Major | timelineserver | Eric Payne | Eric Payne |
+| [YARN-3896](https://issues.apache.org/jira/browse/YARN-3896) | RMNode transitioned from RUNNING to REBOOTED because its response id had not been reset synchronously |  Major | resourcemanager | Jun Gong | Jun Gong |
+| [YARN-3878](https://issues.apache.org/jira/browse/YARN-3878) | AsyncDispatcher can hang while stopping if it is configured for draining events on stop |  Critical | . | Varun Saxena | Varun Saxena |
+| [YARN-3857](https://issues.apache.org/jira/browse/YARN-3857) | Memory leak in ResourceManager with SIMPLE mode |  Critical | resourcemanager | mujunchao | mujunchao |
+| [YARN-3802](https://issues.apache.org/jira/browse/YARN-3802) | Two RMNodes for the same NodeId are used in RM sometimes after NM is reconnected. |  Major | resourcemanager | zhihai xu | zhihai xu |
+| [YARN-3798](https://issues.apache.org/jira/browse/YARN-3798) | ZKRMStateStore shouldn't create new session without occurrance of SESSIONEXPIED |  Blocker | resourcemanager | Bibin A Chundatt | Varun Saxena |
+| [YARN-3793](https://issues.apache.org/jira/browse/YARN-3793) | Several NPEs when deleting local files on NM recovery |  Major | nodemanager | Karthik Kambatla | Varun Saxena |
+| [YARN-3780](https://issues.apache.org/jira/browse/YARN-3780) | Should use equals when compare Resource in RMNodeImpl#ReconnectNodeTransition |  Minor | resourcemanager | zhihai xu | zhihai xu |
+| [YARN-3697](https://issues.apache.org/jira/browse/YARN-3697) | FairScheduler: ContinuousSchedulingThread can fail to shutdown |  Critical | fairscheduler | zhihai xu | zhihai xu |
+| [YARN-3690](https://issues.apache.org/jira/browse/YARN-3690) | [JDK8] 'mvn site' fails |  Major | api, site | Akira AJISAKA | Brahma Reddy Battula |
+| [YARN-3624](https://issues.apache.org/jira/browse/YARN-3624) | ApplicationHistoryServer reverses the order of the filters it gets |  Major | timelineserver | Mit Desai | Mit Desai |
+| [YARN-3619](https://issues.apache.org/jira/browse/YARN-3619) | ContainerMetrics unregisters during getMetrics and leads to ConcurrentModificationException |  Major | nodemanager | Jason Lowe | zhihai xu |
+| [YARN-3535](https://issues.apache.org/jira/browse/YARN-3535) | Scheduler must re-request container resources when RMContainer transitions from ALLOCATED to KILLED |  Critical | capacityscheduler, fairscheduler, resourcemanager | Peng Zhang | Peng Zhang |
+| [YARN-3508](https://issues.apache.org/jira/browse/YARN-3508) | Prevent processing preemption events on the main RM dispatcher |  Major | resourcemanager, scheduler | Jason Lowe | Varun Saxena |
+| [YARN-2890](https://issues.apache.org/jira/browse/YARN-2890) | MiniYarnCluster should turn on timeline service if configured to do so |  Major | . | Mit Desai | Mit Desai |
+| [YARN-2859](https://issues.apache.org/jira/browse/YARN-2859) | ApplicationHistoryServer binds to default port 8188 in MiniYARNCluster |  Critical | timelineserver | Hitesh Shah | Vinod Kumar Vavilapalli |
+| [YARN-2019](https://issues.apache.org/jira/browse/YARN-2019) | Retrospect on decision of making RM crashed if any exception throw in ZKRMStateStore |  Critical | . | Junping Du | Jian He |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [YARN-3580](https://issues.apache.org/jira/browse/YARN-3580) | [JDK 8] TestClientRMService.testGetLabelsToNodes fails |  Major | test | Robert Kanter | Robert Kanter |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [YARN-4101](https://issues.apache.org/jira/browse/YARN-4101) | RM should print alert messages if Zookeeper and Resourcemanager gets connection issue |  Critical | yarn | Yesha Vora | Xuan Gong |
+| [YARN-4092](https://issues.apache.org/jira/browse/YARN-4092) | RM HA UI redirection needs to be fixed when both RMs are in standby mode |  Major | resourcemanager | Xuan Gong | Xuan Gong |
+| [YARN-3969](https://issues.apache.org/jira/browse/YARN-3969) | Allow jobs to be submitted to reservation that is active but does not have any allocations |  Major | capacityscheduler, fairscheduler, resourcemanager | Subru Krishnan | Subru Krishnan |
+| [YARN-3893](https://issues.apache.org/jira/browse/YARN-3893) | Both RM in active state when Admin#transitionToActive failure from refeshAll() |  Critical | resourcemanager | Bibin A Chundatt | Bibin A Chundatt |
+| [YARN-3740](https://issues.apache.org/jira/browse/YARN-3740) | Fixed the typo with the configuration name: APPLICATION\_HISTORY\_PREFIX\_MAX\_APPS |  Major | resourcemanager, webapp, yarn | Xuan Gong | Xuan Gong |
+| [YARN-3700](https://issues.apache.org/jira/browse/YARN-3700) | ATS Web Performance issue at load time when large number of jobs |  Major | resourcemanager, webapp, yarn | Xuan Gong | Xuan Gong |
+| [YARN-3136](https://issues.apache.org/jira/browse/YARN-3136) | getTransferredContainers can be a bottleneck during AM registration |  Major | scheduler | Jason Lowe | Sunil G |
+| [YARN-2902](https://issues.apache.org/jira/browse/YARN-2902) | Killing a container that is localizing can orphan resources in the DOWNLOADING state |  Major | nodemanager | Jason Lowe | Varun Saxena |
+| [YARN-2801](https://issues.apache.org/jira/browse/YARN-2801) | Add documentation for node labels feature |  Major | documentation | Gururaj Shetty | Wangda Tan |
+| [YARN-2513](https://issues.apache.org/jira/browse/YARN-2513) | Host framework UIs in YARN for use with the ATS |  Major | timelineserver | Jonathan Eagles | Jonathan Eagles |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.2/RELEASENOTES.2.7.2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.2/RELEASENOTES.2.7.2.md
new file mode 100644
index 00000000000..57cf8e74683
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.7.2/RELEASENOTES.2.7.2.md
@@ -0,0 +1,35 @@
+
+<!---
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+-->
+# Apache Hadoop  2.7.2 Release Notes
+
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
+
+
+---
+
+* [HADOOP-7139](https://issues.apache.org/jira/browse/HADOOP-7139) | *Major* | **Allow appending to existing SequenceFiles**
+
+Existing sequence files can be appended.
+
+
+---
+
+* [HDFS-7645](https://issues.apache.org/jira/browse/HDFS-7645) | *Major* | **Rolling upgrade is restoring blocks from trash multiple times**
+
+**WARNING: No release note provided for this incompatible change.**