Updated the 2.6.2 final release date.

(cherry picked from commit a4a6b5b4b470b1e7a3c5e2d38433429c455bc709)

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

@@ -18,7 +18,7 @@ Release 2.6.3 - UNRELEASED
     HADOOP-9242. Duplicate surefire plugin config in hadoop-common.
     (Andrey Klochkov via suresh)
 
-Release 2.6.2 - 2015-10-21
+Release 2.6.2 - 2015-10-28
 
   INCOMPATIBLE CHANGES
 

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

@@ -12,7 +12,7 @@ Release 2.6.3 - UNRELEASED
 
   BUG FIXES
 
-Release 2.6.2 - 2015-10-21
+Release 2.6.2 - 2015-10-28
 
   INCOMPATIBLE CHANGES
 

hadoop-mapreduce-project/CHANGES.txt

@@ -19,7 +19,7 @@ Release 2.6.3 - UNRELEASED
     MAPREDUCE-6528. Memory leak for HistoryFileManager.getJobSummary()
     (Junping Du via jlowe)
 
-Release 2.6.2 - 2015-10-21
+Release 2.6.2 - 2015-10-28
 
   INCOMPATIBLE CHANGES
 

hadoop-yarn-project/CHANGES.txt

@@ -15,7 +15,7 @@ Release 2.6.3 - UNRELEASED
     YARN-2859. ApplicationHistoryServer binds to default port 8188 in MiniYARNCluster.
     (Vinod Kumar Vavilapalli via xgong)
 
-Release 2.6.2 - 2015-10-21
+Release 2.6.2 - 2015-10-28
 
   INCOMPATIBLE CHANGES