Microsoft published an article that documents the hotfixes that are currently available for Windows Server 2012-based Failover Clusters.
Failover Clustering allows multiple servers to provide high availability of server roles. Failover Clustering is often used for File Services, Virtual Machines, Database Applications, and Mail Applications.
The recommended hotfixes and updates for Windows Server 2012-based Failover Clusters : http://support.microsoft.com/kb/2784261
Tagged: Failover Cluster, Hotfix, Hyper-V, update, Windows 2012
