diff --git a/hadoop-common-project/hadoop-common/CHANGES.txt b/hadoop-common-project/hadoop-common/CHANGES.txt
index 6c1bd4f0c05..a008097709b 100644
--- a/hadoop-common-project/hadoop-common/CHANGES.txt
+++ b/hadoop-common-project/hadoop-common/CHANGES.txt
@@ -52,6 +52,9 @@ Trunk (unreleased changes)
     HADOOP-8078. Add capability to turn on security in unit tests. (Jaimin Jetly
     via jitendra)
 
+    HADOOP-7994. Remove getProtocolVersion and getProtocolSignature from the 
+    client side translator and server side implementation. (jitendra)
+
   BUG FIXES
 
     HADOOP-8018.  Hudson auto test for HDFS has started throwing javadoc
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/RefreshUserMappingsProtocol.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/RefreshUserMappingsProtocol.java
index 5e2a94c9994..0e1c0864f54 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/RefreshUserMappingsProtocol.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/RefreshUserMappingsProtocol.java
@@ -33,7 +33,7 @@ import org.apache.hadoop.security.KerberosInfo;
     serverPrincipal=CommonConfigurationKeys.HADOOP_SECURITY_SERVICE_USER_NAME_KEY)
 @InterfaceAudience.LimitedPrivate({"HDFS", "MapReduce"})
 @InterfaceStability.Evolving
-public interface RefreshUserMappingsProtocol extends VersionedProtocol {
+public interface RefreshUserMappingsProtocol {
   
   /**
    * Version 1: Initial version.
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/authorize/RefreshAuthorizationPolicyProtocol.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/authorize/RefreshAuthorizationPolicyProtocol.java
index 8cab51b937c..9ab6d68dafe 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/authorize/RefreshAuthorizationPolicyProtocol.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/authorize/RefreshAuthorizationPolicyProtocol.java
@@ -32,7 +32,7 @@ import org.apache.hadoop.security.KerberosInfo;
     serverPrincipal=CommonConfigurationKeys.HADOOP_SECURITY_SERVICE_USER_NAME_KEY)
 @InterfaceAudience.LimitedPrivate({"HDFS", "MapReduce"})
 @InterfaceStability.Evolving
-public interface RefreshAuthorizationPolicyProtocol extends VersionedProtocol {
+public interface RefreshAuthorizationPolicyProtocol {
   
   /**
    * Version 1: Initial version
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/tools/GetUserMappingsProtocol.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/tools/GetUserMappingsProtocol.java
index 0b483043401..0f5bf7a5130 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/tools/GetUserMappingsProtocol.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/tools/GetUserMappingsProtocol.java
@@ -29,7 +29,7 @@ import org.apache.hadoop.ipc.VersionedProtocol;
  */
 @InterfaceAudience.LimitedPrivate({"HDFS", "MapReduce"})
 @InterfaceStability.Evolving
-public interface GetUserMappingsProtocol extends VersionedProtocol {
+public interface GetUserMappingsProtocol {
   
   /**
    * Version 1: Initial version.