Preparing for release 2.6.1: Updating site update page.

hadoop-project/src/site/apt/index.apt.vm

@@ -19,7 +19,7 @@
 Apache Hadoop ${project.version}
 
   Apache Hadoop ${project.version} is a minor release in the 2.x.y release
-  line, building upon the previous stable release 2.4.1.
+  line, building upon the previous stable release 2.6.0.
 
   Here is a short overview of the major features and improvements.