The latest Failover Cluster service packs, updates, and hotfixes for Windows Server 2012 are listed here in chronological order.
Windows Server 2012
Last Updated: Jan, 2013, Mar. 2013, and Feb. 2014.
Originally published: January 27, 2013
These updates and hotfixes can help avoid some known issues and may save you a support call.
A hotfix is intended to correct only the problem that is described in the article. You should not apply the hotfix if you have not seen the symptoms.
A catch 22, do you install it to try preventing the problem from occurring or do you only install it if you see the problem and have an outage?
Note: Some updates are required only under certain circumstances, as noted in the table.
Q. What's the difference between the KB Recommended hotfix article for "Failover Clusters" and this list?
2784261 Recommended hotfixes and updates for Windows Server 2012-based Failover Clusters
A. The KB 2784261 article is the official list by our Supportability Program Managers for Failover Cluster. That applies to everyone.
This technet wiki post, is every single "Failover Cluster" hotfixes that we have shipped since Windows Server 2012 RTM'ed (also known as gold or shipped).
(Replaces the hotfix that is described in KB article 2848344)
(This obsoletes KB2813630 - Superseded by KB2848344)
(This obsoletes KB2799728, that caused massive memory leaks)
(Install with 2795997 and 2795993 below)
(This supersedes KB2838669/KB2796995/KB2824600 - Superseded by KB2870270)
Also, you may want to see the: