title: How can I compile old Swift code with Xcode 7 beta?
body: <p>I am newbie to iOS development in Swift. Just started one day ago.</p>
  
  <p>Currently I just tried the recent Xcode 7 Beta. Before I was installing Xcode 6.3, then I removed or uninstalled it because I was curious with Xcode 7 beta and its Swift version 2. </p>
  
  <p>Having said that, I have a project which use old Swift code. The code base is pretty large, attempting to convert the old Swift 1.2 to Swift 2.0 is breaking the code heavily. I am wondering if there is a way to compile or build my old project using Xcode 7 beta which support Swift 2?</p>
  
  <p>I also would like to know if there is a way to back port current Xcode. Or Should I install back Xcode 6.3?</p>