Back in March I posted links to two TechNet Wiki Pages where all the available Failover Cluster and Hyper-V hotfixes were listed (List of Hyper-V and Failover Cluster Hotfixes for Windows Server 2012). Now the Microsoft Cluster team created an offical knowledge base article (KB2784261) for recommended hotfixes and updates for Windows Server 2012-based Failover Clusters. Make sure you check this list of hotfixes before you go in production with your Windows Server 2012 cluster.
There are some really important fixes especially if you are running a Windows Server 2012 Hyper-V cluster and you are using Cluster Shared Volumes.
You can find more information on KB2784261 – Recommended hotfixes and updates for Windows Server 2012-based Failover Clusters.