Jeff here from the Windows SDK team. Here are the Windows hotfixes for February 2016.
KB3007507 “HTTP Error 500.19” error when you browse an IIS 8.5 website in Windows
KB3090343 Cluster service stops during the VSS backup in a Windows Server 2012 R2 or Windows Server 2012-based Hyper-V cluster
KB3123593 A multi-site failover cluster goes into a split brain situation in Windows Server 2012 R2
KB3133689 UBPM doesn’t set environmental variables correctly when you run scheduled tasks in Windows Server 2012 R2
Follow us on Twitter, www.twitter.com/WindowsSDK.