macOS Catalina dropped support for many older Mac models because it requires graphics hardware that supports Apple's Metal technology. Before downloading anything, verify that your Mac is on the official compatibility list.

Once the installer finishes preparation, your Mac will automatically restart.

Apple provides a direct link to the Catalina installer, but it can be tricky to find via search.

. Check your critical apps for 64-bit compatibility before proceeding. Apple Support Community Step 2: Prepare Your Mac

How To Update Macos High — Sierra 10.13.6 To 10.15 |verified|

macOS Catalina dropped support for many older Mac models because it requires graphics hardware that supports Apple's Metal technology. Before downloading anything, verify that your Mac is on the official compatibility list.

Once the installer finishes preparation, your Mac will automatically restart. how to update macos high sierra 10.13.6 to 10.15

Apple provides a direct link to the Catalina installer, but it can be tricky to find via search. macOS Catalina dropped support for many older Mac

. Check your critical apps for 64-bit compatibility before proceeding. Apple Support Community Step 2: Prepare Your Mac how to update macos high sierra 10.13.6 to 10.15