An update to Visual Studio 2013 is now available for download.
For more details see Visual Studio Team Blog, Brian Harry’s blog, and Somasegar’s blog.
Official KB article 2911573
Note: The version of compiler (18.00.21005.1) and C/C++ Runtime (12.0.21005.1) are the same ones that shipped with VS 2013 RTM. There is an updated Remote Debugging Tools package for VS 2013 Update 1.
Related: Visual Studio 2013 RTM, VS 2013 Update 2, VS 2013 Update 3, VS 2013 Update 4