System Center 2012 has only been generally available for the last few weeks but already the first set of updates has been released.
These updates target Operations Manager, Virtual Machine Manager and App Controller.
The four updates contained in Update Rollup 1:
- Virtual Machine Manager Server Update (KB2663959)
- Virtual Machine Manager Console Update (KB2663960)
- Virtual Machine Manager Self-Service Portal Update (KB2663961)
- App Controller Update (KB2677596)
Personally I am looking forward to applying the App Controller Update since it fixes a problem where the user is prompted for password even if single sign-on is enabled. But in general the issues seems relevant enough.
You can read more and download at http://support.microsoft.com/kb/2686249