Update Rollup 3 for System Center 2012 Service Pack 1

Here is the link to the latest rollup for App Controller, VMM, SCOM and DPM

Recommended hotfixes and updates for Windows Server 2012-based Failover Clusters

Recommended hotfixes and updates for Windows Server 2012-based Failover Clusters

The list of currently available hotfixes and updates to failover cluster based on Server 2012