title: Is the Visual Studio 2012 RC Diff Utility Compare-Only?
body: <p>I swear that in earlier versions of the preview/beta/whatever I was not only able to view the difference between two files, but also merge/update.  Now I'm looking at a diff window and as far as I can tell there is no way to move lines from left to right, or right to left.</p>
  
  <p><img src="https://i.stack.imgur.com/nqK8m.png" alt="Screenshot of Diff UI"></p>
  
  <p>The window has a "Help" link at the bottom, leading to this <a href="http://msdn.microsoft.com/en-us/library/tfs/bb385990%28v=vs.110%29.aspx" rel="nofollow noreferrer">page</a> which, unfortunately has no coverage of any kind of merge.  The only way I can do it at the moment is to manually copy and paste, or type the text on the left into the pane on the right.</p>
  
  <p>Did Microsoft remove these features opting for a "compare-only" diff utility?  </p>
  
  <p>Are these tools available somewhere I'm not looking?</p>
  
  <p>Is it possible my installation is corrupted?  Can anyone confirm that they can not only compare, but also update using the RC.</p>