The JOPR/RHQ plugin now works in multi cache manager environments (ISPN-675) and thanks to ISPN-754, cache manager instances can be easily identified when using the JOPR/RHQ management GUI. As a result of ISPN-754, JMX object names follow best practices as set up by Sun/Oracle and so this means that object names exported to JMX have changed from this version onwards. See this wiki page for detailed information.
For a list of all fixes since Alpha5, have a look at the release notes in JIRA, and as always, download the release here, and let us know what you think using the user forums.
Onward to release candidate and final release phases! :-)