I just found the answer myself. On the red hat site there is a release document that contains some (or all?) of the fixes: https://access.redhat.com/site/documentation/en-US/JBoss_Enterprise_Application_Platform/6.1/html-single/6.1.1_Release_Notes/index.html#sect-changes
Micro releases are usually just bug-fix releases with no new features.
So in short that release notes should be correct list of changes.