Visual Studio 2013 Update 1
Visual Studio 2013 Update 1 is now available to download and is primarily focused on bug fixes.
“This is a targeted update, addressing some key areas of customer feedback since the Visual Studio 2013 release. For example, we heard your feedback about running Visual Studio in environments without IE10+, and have made several improvements to this experience in Update 1.” – S. Somasegar
You can find a detailed list of included fixes in the associated Support article.
You can download VS2013.1 now or wait for it to show up in the Visual Studio Notifications.
References
http://blogs.msdn.com/b/somasegar/archive/2014/01/20/visual-studio-2013-update-1.aspx
http://support.microsoft.com/kb/2911573