I have an app which, due to some serious compatibility issues, I'm still building with the iOS 9.x SDK. Making modifications to get it to compile with the 10.x SDK would be a large undertaking. So, I've just been using Xcode 7.
The problem is that because of this, I can't effectively debug on iOS 10.x devices, as (of course) XCode 7 doesn't recognize iOS 10 devices.
Is there any way to get the best of both worlds? E.g. run XCode 8, debug on iOS 10.x devices, but build using the iOS 9.x SDK?