To update your Mac from macOS High Sierra 10.13.6 macOS Catalina 10.15
Before starting, ensure your Mac model officially supports Catalina. Because Catalina requires a Metal-capable GPU, some older machines that ran High Sierra cannot move forward to 10.15. Compatible Models: MacBook: Early 2015 or newer MacBook Air: Mid 2012 or newer MacBook Pro: Mid 2012 or newer Mac mini: Late 2012 or newer iMac: Late 2012 or newer iMac Pro: 2017 Mac Pro: Late 2013 or newer Minimum System Requirements: Memory: At least 4GB of RAM. how to update macos high sierra 10.13.6 to 10.15
How to Upgrade Your Mac from High Sierra (10.13.6) to Catalina (10.15) To update your Mac from macOS High Sierra 10
To update your Mac from macOS High Sierra 10.13.6 to macOS Catalina 10.15, you must use the Mac App Store rather than the standard "Software Update" menu, as 10.15 is considered a major version upgrade rather than a minor patch. Step 1: Check Compatibility How to Upgrade Your Mac from High Sierra (10