The second update to Visual Studio 2012 is now available for download. For full details, see the following blog posts: Visual Studio team blog, Somasegar's blog, and Visual Studio ALM + Team Foundation Server blog.
See KB 2797912
VS 2012 Update 2 includes a new version of the compiler (17.00.60315).
The C/C++ Runtime was not updated, so you should continue to use the VS 2012 Update 1 version (11.0.51106).
VS 2012 Update 2 includes stability and performance improvements for the Graphics Diagnostics feature. This includes improved support for KB 2680838.
Windows XP developers: There have been some reported issues with using the "v110_xp" Platform Target with Update 2. This is fixed in Visual Studio 2012 Update 3.
Related: Visual Studio 2012 Update 1, Visual Studio 2012 Update 4