To update to macOS Catalina 10.15 , the process depends primarily on whether your hardware is officially supported. Unlike regular point updates, this is a major system upgrade that requires a full installer from the Mac App Store. 1. Verify Hardware Compatibility
Once the upgrade finishes, you will be greeted by the macOS Catalina welcome screen. how to update macos high sierra 10.13.6 to 10.15
If you want, I can:
