Wow, they are DEPRECATING OpenGL from both macOS and iOS: https://developer.apple.com/macos/whats-new/ This is in addition to last year's announcement that "macOS High Sierra is the last version of macOS to run 32bit apps without compromise " I wonder if we will soon see a new lineage of Macbooks fitted with Apple-specific arm64 chips. The most scary thought is if UIKit-on-macOS starts requiring Developer ID entitlem…
The writing was on the wall since they stopped updating it (OpenGL) 5 years ago.
Edit: and XQuartz (X11) with OpenGL comes in handy once in a while too...