Black text = current and announced versions of macOS (e.g., Monterey).The text colour associated with each model indicates the last supported operating system that Mac can run: Since I didn't have a current copy of OmniGraffle handy at the time, I made a 1920×1080 slide in Keynote! That was 2012 I have regularly updated it since then. In trying to sort out what Mac hardware supported which operating systems and what new features, it became useful to create a chart to help visualize it.