Hey I ran into the same issue with Xcode 8 breaking all my existing iOS projects. If you go to developer.apple.com and find the downloads section you can downlo

Hey I ran into the same issue with Xcode 8 breaking all my existing iOS projects. If you go to developer.apple.com and find the downloads section you can download older versions of Xcode. You can have multiple Xcode versions installed on a single machine. I have Xcode 7 and Xcode 8 sitting right next to each other in my applications folder.