Configuration Manager 2012 R2 Hotfixes
This post will be continuously updated as new hotfixes become available. I do not recommend installing each and every single one of these. I recommend only installing them if you are experiencing the problem described.
Last Updated: 7/3/2014
RTM
2905002 An update is available for the “Operating System Deployment” feature of System Center 2012 R2 Configuration Manager
2907591 Per-computer variables for imported computers are not read in System Center 2012 R2 Configuration Manager
2907566 November 2013 anti-malware platform update for Endpoint Protection clients
2916611 Automatic Deployment Rules do not work when you use specific proxy authentication on a site server that is running Microsoft System Center 2012 R2 Configuration Manager
2910552 You cannot deploy Windows 8.1 to a Windows XP-based computer after you upgrade to System Center 2012 R2 Configuration Manager
2928122 Application contents are duplicated in stand-alone media in System Center 2012 R2 Configuration Manager
R2CU1 with Post R2CU1 Hotfixes
2938441 Description of Cumulative Update 1 for System Center 2012 R2 Configuration Manager
R2 CU2 with Post CU2 Hotfixes
2970177 Description of Cumulative Update 2 for System Center 2012 R2 Configuration Manager