Today the RU (Rollup) package 3 for System Center 2012 was released.
Improvements for the different products in the suite included minor fixes for DPM / SCOM and SCSM.
All the RU packages are cumulative so if you install RU3 the previous fixes are also included.
An overview per product:
Source the official mom team blog (=> bookmark this valuable blog!) http://blogs.technet.com/b/momteam/archive/2012/10/10/system-center-2012-update-rollup-3-ur3-released.aspx
You can find more details and instructions for obtaining and installing the update rollup on the associated KB article here:
Update Rollup 3 for System Center Data Protection Manager 2012 (KB2751230)
After you upgrade System Center Data Protection Manager 2010 to System Center Data Protection Manager 2012, the tape management report does not display overdue tapes.
System Center Data Protection Manager 2012 Client Protection does not scale to the limits that are expected.
When you try to specify a client computer name in the DPMServerName attribute by using Windows PowerShell, Windows PowerShell crashes.
When the name of a Microsoft SharePoint site collection contains a space, and you perform a SharePoint item-level recovery operation in System Center Data Protection Manager 2012, the operation fails.
After you rename a SharePoint site in System Center Data Protection Manager 2012, you cannot restore the site.
The SharePoint Recovery Point Status Report displays incorrect data in System Center Data Protection Manager 2012.
A bare metal recovery fails in certain situations.
Update Rollup 3 for System Center Operations Manager 2012 (KB2750631)
When you use the 32-bit version of Windows Internet Explorer to start a web console, the Microsoft.EnterpriseManagement.Presentation.Controls.SpeedometerGaugeUIController controller does not work correctly.
When you run a Windows PowerShell cmdlet, you receive the following error message:
Get-BPAModel is not recognized as the name of a cmdlet.
When you try to change a URL in the “web application availability monitoring” template instance, the change is not applied.
Update Rollup 3 for System Center Service Manager 2012 (KB2750615)
When you open or close the Incident form in the System Center Service Manager 2012 console, a memory leak occurs.
When form control objects are rooted in the Garbage-Collected (GC) Heap, the System Center Service Manager 2012 console crashes, and you receive an OutOfMemoryException exception.
After you change the SharePoint site language to Turkish in the System Center Service Manager 2012 portal, the display strings are displayed in English unexpectedly.
When you open the System Center Service Manager 2012 console by using a Citrix application, and then you open the Incident form, you experience slow performance.
Check out the blog post of kevin Greene on how to deploy this update: http://kevingreeneitblog.blogspot.ie/2012/10/scom-2012-deploying-cumulative-update.html