Will Xcode 7.3.1 work on macOS 10.12?

Question

I want to install and try out the new features of macOS 10.12. Also I really want to work on Xcode 8.0. But the same time I have some client projects which should written on Swi

Answer 1

You can absolutely install Xcode 7.3.1 on macOS Sierra alongside the beta version of Xcode 8.

If you are having issues running Xcode 7.3.x or running the simulator:

1. Reinstall Xcode 7.3.x from https://developer.apple.com/downloads/.

2. Manually attach the debugger to your process as outlined in this Stack Overflow answer.