diff --git a/CHANGES.txt b/CHANGES.txt
index ee19517b11f..17b703b252d 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -606,6 +606,7 @@ Other Changes
 22. SOLR-489: Added in deprecation comments.  (Sean Timm, Lars Kothoff via gsingers)
 
 23. SOLR-692: Migrated to stable released builds of StAX API 1.0.1 and StAX 1.2.0 (shalin)
+19. Upgraded to Lucene 2.4-dev (r686801) (yonik)
 
 Build
  1. SOLR-411.  Changed the names of the Solr JARs to use the defacto standard JAR names based on
diff --git a/lib/lucene-analyzers-2.4-dev.jar b/lib/lucene-analyzers-2.4-dev.jar
index 17cc1644ea2..0f648c2a466 100644
--- a/lib/lucene-analyzers-2.4-dev.jar
+++ b/lib/lucene-analyzers-2.4-dev.jar
@@ -1,2 +1,2 @@
-AnyObjectId[630ded90301495ffdb2d5a69d656c697b54eae4a] was removed in git history.
+AnyObjectId[49f81564babf39ad5380f3192d721277eef47012] was removed in git history.
 Apache SVN contains full history.
\ No newline at end of file
diff --git a/lib/lucene-core-2.4-dev.jar b/lib/lucene-core-2.4-dev.jar
index c97ff89ac46..b5a339f95de 100644
--- a/lib/lucene-core-2.4-dev.jar
+++ b/lib/lucene-core-2.4-dev.jar
@@ -1,2 +1,2 @@
-AnyObjectId[b7de7debdb89fb00ddcd969e6459059de38a0066] was removed in git history.
+AnyObjectId[f83af4f740bdeee5a225a83d7191c19e60b5f0dc] was removed in git history.
 Apache SVN contains full history.
\ No newline at end of file
diff --git a/lib/lucene-highlighter-2.4-dev.jar b/lib/lucene-highlighter-2.4-dev.jar
index 5179dfd8861..06e18d0a40a 100644
--- a/lib/lucene-highlighter-2.4-dev.jar
+++ b/lib/lucene-highlighter-2.4-dev.jar
@@ -1,2 +1,2 @@
-AnyObjectId[7ac77ded12c4e71ebb2dd8c7d8b5d49372823b59] was removed in git history.
+AnyObjectId[d0b2bac5ed0f2431cd3b0ab4ac00ddd9869fedda] was removed in git history.
 Apache SVN contains full history.
\ No newline at end of file
diff --git a/lib/lucene-queries-2.4-dev.jar b/lib/lucene-queries-2.4-dev.jar
index 257aac49326..c5c6230213e 100644
--- a/lib/lucene-queries-2.4-dev.jar
+++ b/lib/lucene-queries-2.4-dev.jar
@@ -1,2 +1,2 @@
-AnyObjectId[5b27a2cc32d635fdd8477a878f4c04eacd6df812] was removed in git history.
+AnyObjectId[1a26615978c7099f431f022f26c5e8a4fbdca886] was removed in git history.
 Apache SVN contains full history.
\ No newline at end of file
diff --git a/lib/lucene-snowball-2.4-dev.jar b/lib/lucene-snowball-2.4-dev.jar
index 4d8d0818817..306779e9f8b 100644
--- a/lib/lucene-snowball-2.4-dev.jar
+++ b/lib/lucene-snowball-2.4-dev.jar
@@ -1,2 +1,2 @@
-AnyObjectId[c5b004d8a86cd3d702634fe02e75ab95939ef4a6] was removed in git history.
+AnyObjectId[88b4c000edbceddaef0568b5ba7605eb40e9842b] was removed in git history.
 Apache SVN contains full history.
\ No newline at end of file
diff --git a/lib/lucene-spellchecker-2.4-dev.jar b/lib/lucene-spellchecker-2.4-dev.jar
index f4212127a38..1f823f54bd1 100644
--- a/lib/lucene-spellchecker-2.4-dev.jar
+++ b/lib/lucene-spellchecker-2.4-dev.jar
@@ -1,2 +1,2 @@
-AnyObjectId[eaf9f26f79727c84b0c28cdc7a3b52534e543eaf] was removed in git history.
+AnyObjectId[a4d694074e8728accc27251cdcf0b4bdd82d8571] was removed in git history.
 Apache SVN contains full history.
\ No newline at end of file