Oddly Sierra has been the easiest MacOS upgrade I've ever had. Barely noticed it other than having to rerun xcode-select --install; even some of the obscurer li

Oddly Sierra has been the easiest MacOS upgrade I've ever had. Barely noticed it other than having to rerun xcode-select --install; even some of the obscurer libraries I'd installed are still working. (I haven't moved to High Sierra yet.)