title: How to downgrade Xcode to previous version?
body: <p>I have to use Xcode occasionally, and have now come across a problem where I've upgraded to Xcode 4.6, but another piece of software I'm using doesn't support it, so I need to go back to Xcode 4.5.</p>
  
  <p>I'm not used to the way Macs work in general, so if the answers provided could be written with that in mind, that'd be helpful. :)</p>