RichFaces 4.5.3.Final has been staged.
Version and tag: 4.5.3.Final
Testing of respin is finished. The only issue we found is [RF-13992] collapsiblePanel stops rendering of following components when placed in a4j:region - JBoss Issue Tracker but according to Michal's comment in Jira it's not a bug.
4.5.3.Final is ready to be released.