New batch of updates available for the server and client side for OCS 2007 R2.
So far so good, I will update this blog post over the weekend after I patch all of our servers.
Links below for Server and for Client. Biggest fix seems to be the annoyance with the CWA Dial In Conferencing Page and PIN number issues:
978373 The Dial-in Conferencing Settings page in Office Communicator Web Access 2007 R2 prompts you to enter a PIN that is at least 5 digits even if the PIN length policy is set to use a PIN that is less than 5 digits
Server Side Updates: http://support.microsoft.com/?kbid=968802
Communicator Client: http://support.microsoft.com/kb/978564
Just an update from running the updates over this past weekend. Everything seems to work just fine, your front end server may not prompt for a reboot, but I would advise rebooting. A couple people have reported some issues with group expansion. My fix was to cycle the application pool in IIS,however a reboot is suggested.