Update release notes based on Oliver's feedback on the VOTE thread for

2.6.0 RC1.

RELEASE-NOTES.txt

@@ -5,7 +5,11 @@ The Apache Commons Pool team is pleased to announce the release of Apache Common
 Apache Commons Pool provides an object-pooling API and a number of object pool implementations.
 Version 2 contains a completely re-written pooling implementation compared to the 1.x series.
 In addition to performance and scalability improvements, version 2 includes robust instance
-tracking and pool monitoring. Version 2 requires JDK level 1.6 or above. 
+tracking and pool monitoring.  
+
+- Version 2.6.0 requires Java 7 or above.
+- Version 2.5.0 requires Java 7 or above.
+- Version 2.0 requires 6 or above.
 
 No client code changes are required to migrate from versions 2.0-2.3 to version 2.4.3.
 Users of version 1.x should consult the migration guide on the Commons Pool web site.