Earlier I posted about FIM 2010 support for AD 2008 R2 and the fact that the updates were available by using windows updates or the update catalog: FIM 2010 update (KB978864) install issue

Seems like finally the official KB got through: Update Package 1 for Microsoft Forefront Identity Manager (FIM) 2010

I’m a bit disappointed about the details given. The explanation given by Markus Vilcinskas on TechNet forums: What’s New in FIM update 1 has some interesting extra information:

• A new prerequisite for Update 1: The FIM Synchronization Service is now using SQL Native Agent, so be sure to install it before you install the update
• FIM Synchronization Service changes:
• Added support for Recycle Bin in Active Directory.
  To get the correct result, install the Active Directory Recycle Bin fix 979214 on the DC used by FIM Synchronization Service.
• Added a new feature called “Resume Full Sync”.
  If a full sync is not completed the next time the same run profile is attempted a new option in Run Management Agent will allow the administrator to continue the Full Sync from the point that it stopped.
• Addressed an issue to detect Exchange Server 2010 in the AD MA.

In my opinion the update is really advised, especially if you’re using Exchange 2010 and/or Active Directory based on Windows 2008 R2