<A target="_blank" href="http://www-01.ibm.com/support/docview.wss?rs=463&context=SSKTMJ&dc=DB560&dc=DB520&uid=swg21375392">This Interim Fix has been released</A> to fix 2 problems:
#1 - a regression bug related to renaming and deleting users where group memberships aren't updated.
#2 - an IMAP task can crash the Domino server in certain cases.