Current Windows Server 2012 / R2 & Windows 8 / 8.1 Update Rollups

This list is current up to January 2015. *Edit* Never say never, there is a May 2016 update for Windows Server 2012 R2, check below for details. Fixed notes for post Windows 2012 R2 April 2014 updates. There are some wikis also being maintained by MVPs: http://social.technet.microsoft.com/wiki/contents/articles/23820.list-of-rollup-updates-for-windows-8-and-windows-server-2012.aspx, http://social.technet.microsoft.com/wiki/contents/articles/23823.list-of-rollup-updates-for-windows-8-1-and-windows-server-2012-r2.aspx.
I wanted to get them all on one page formatted. The links are also changed over to support2.microsoft.com.
Remember Update Rollups are not cumulative, so later updates do not necessarily have fixes from previous updates: http://blogs.technet.com/b/askpfeplat/archive/2013/05/13/update-rollups-for-windows-server-2012-and-windows-8-explained.aspx
 
Windows Server 2012 R2 & Windows 8.1
General Availability Update Rollup – http://support2.microsoft.com/kb/2883200
October 2013 – http://support2.microsoft.com/kb/2884846
November 2013 – http://support2.microsoft.com/kb/2887595
December 2013 – http://support2.microsoft.com/kb/2903939
January 2014 – http://support2.microsoft.com/kb/2911106
February 2014 – http://support2.microsoft.com/kb/2919394
March 2014 – http://support2.microsoft.com/kb/2928680
April 2014 – http://support2.microsoft.com/kb/2919355   *See Note
May 2014 – http://support2.microsoft.com/kb/2955164   **See Note
June 2014 – http://support2.microsoft.com/kb/2962409   **See Note
July 2014 – http://support2.microsoft.com/kb/2967917   **See Note
August 2014 – http://support2.microsoft.com/kb/2975719   **See Note
September 2014 – http://support2.microsoft.com/kb/2984006   **See Note
October 2014 – http://support2.microsoft.com/kb/2995388   **See Note
November 2014 – http://support2.microsoft.com/kb/3000850   **See Note
December 2014 – http://support2.microsoft.com/kb/3013769   **See Note
May 2016 – https://support.microsoft.com/en-us/kb/3156418  **See Note
* This update includes previous fixes
** You must first install update 2919355 (http://support.microsoft.com/kb/2919355) on Windows 8.1 or Windows Server 2012 R2.
Windows Server 2012 & Windows 8
General Availability Update Rollup – http://support2.microsoft.com/kb/2756872
January 2013 – http://support2.microsoft.com/kb/2785094
February 2013 – http://support2.microsoft.com/kb/2795944
March 2013 – http://support2.microsoft.com/kb/2811660
April 2013 – http://support2.microsoft.com/kb/2822241
May 2013 – http://support2.microsoft.com/kb/2836988
June 2013 – http://support2.microsoft.com/kb/2845533
July 2013 – http://support2.microsoft.com/kb/2855336
August 2013 – http://support2.microsoft.com/kb/2862768
September 2013 – http://support2.microsoft.com/kb/2876415
October 2013 – http://support2.microsoft.com/kb/2883201
November 2013 – http://support2.microsoft.com/kb/2889784
December 2013 – http://support2.microsoft.com/kb/2903938
January 2014 – http://support2.microsoft.com/kb/2911101
February 2014 – http://support2.microsoft.com/kb/2919393
March 2014 – http://support2.microsoft.com/kb/2928678
April 2014 – http://support2.microsoft.com/kb/2934016
May 2014 – http://support2.microsoft.com/kb/2955163
June 2014 – http://support2.microsoft.com/kb/2962407
July 2014 – http://support2.microsoft.com/kb/2967916
August 2014 – http://support2.microsoft.com/kb/2975331
September 2014 – http://support2.microsoft.com/kb/2984005
October 2014 – http://support2.microsoft.com/kb/2995387
November 2014 – http://support2.microsoft.com/kb/3000853
December 2014 – http://support2.microsoft.com/kb/3013767