Exactly what just happened to me: I was planning to stay on 10.12 for some more time, but now I need to do some testing on the new iPad 6, which is provided wit

Exactly what just happened to me: I was planning to stay on 10.12 for some more time, but now I need to do some testing on the new iPad 6, which is provided with iOS 11.3 in the box, which is only supported by the new xcode 9.3, which only works on macOS 10.13... #damnit