Yesterday, Microsoft released a new update for VS 2012. In this first update for VS 2012, They included a lot of enhancements in terms of TFS services, SharePoint Development ALM, .NET Framework enhancements, Mobile development Enhancements and IDE fixes.
The complete list of all the updates in details are listed here:
So, if you are developing using VS 2012, it is strongly recommended to install this update, this is the download link:
Hope this helps.