Microsoft System Center 2012 R2 components are supported for the April 2014 Windows Server 2012 R2 Update (KB 2919355). This update can be applied to the latest System Center 2012 R2 workloads that are deployed either before or after the update is offered through Windows Update. Or, you can install this update by using your preferred distribution channels.
The System Center 2012 R2 products that are listed in the "Applies to" section support the Windows Server 2012 R2 Update (KB 2919355). For more information about the Windows Server 2012 R2 Update, click the following article number to view the article in the Microsoft Knowledge Base:
2919355 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 Update: April 2014