I haven't updated my app to the Swift 2 because I'm afraid the debugging will delay things too much with the current development process. As such, I'm using Xcode 6.4 right now which uses old version of Swift. The El Capitan is due to be released soon, and I was wondering if older Xcode versions will still run on the El Capitan. I read different opinions about it, and some suggested some fixes, but I'm not sure if it has changed for the GM or not. Any ideas?