Creating 2.6.2 entries in CHANGES.txt files.

(cherry picked from commit 33474939a048ac7bbe07df772f0000c84979722f)

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -817,6 +817,18 @@ Release 2.7.0 - 2015-04-20
     HADOOP-11837. AuthenticationFilter should destroy SignerSecretProvider in
     Tomcat deployments. (Bowen Zhang via wheat9)
 
+Release 2.6.2 - UNRELEASED
+
+  INCOMPATIBLE CHANGES
+
+  NEW FEATURES
+
+  IMPROVEMENTS
+
+  OPTIMIZATIONS
+
+  BUG FIXES
+
 Release 2.6.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -1166,6 +1166,18 @@ Release 2.7.0 - 2015-04-20
       HDFS-7824. GetContentSummary API and its namenode implementation for
       Storage Type Quota/Usage. (Xiaoyu Yao via Arpit Agarwal)
 
+Release 2.6.2 - UNRELEASED
+
+  INCOMPATIBLE CHANGES
+
+  NEW FEATURES
+
+  IMPROVEMENTS
+
+  OPTIMIZATIONS
+
+  BUG FIXES
+
 Release 2.6.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/CHANGES.txt

@@ -259,6 +259,18 @@ Release 2.7.0 - 2015-04-20
     MAPREDUCE-6303. Read timeout when retrying a fetch error can be fatal 
     to a reducer. (Jason Lowe via junping_du)
 
+Release 2.6.2 - UNRELEASED
+
+  INCOMPATIBLE CHANGES
+
+  NEW FEATURES
+
+  IMPROVEMENTS
+
+  OPTIMIZATIONS
+
+  BUG FIXES
+
 Release 2.6.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-yarn-project/CHANGES.txt

@@ -985,6 +985,18 @@ Release 2.7.0 - 2015-04-20
     YARN-3466. Fix RM nodes web page to sort by node HTTP-address, #containers 
     and node-label column (Jason Lowe via wangda)
 
+Release 2.6.2 - UNRELEASED
+
+  INCOMPATIBLE CHANGES
+
+  NEW FEATURES
+
+  IMPROVEMENTS
+
+  OPTIMIZATIONS
+
+  BUG FIXES
+
 Release 2.6.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES