My macbook won’t update
How does my macbook update to macOS Catalina even if it’s on High Sierra?
MacBook Pro 13", macOS 10.12
Question marked as
Top-ranking reply
OK, that is an Upgrade instead of an Update, but are you sure you want Catalina even if it can update?
See if you can upgrade to 10.14, or 10.15, see sys requirements...
https://support.apple.com/kb/SP777?locale=en_US
https://itunes.apple.com/us/app/macos-mojave/id1398502828?mt=12
macOS Catalina - Technical Specifications
General Requirements
▪ OS X 10.9 or later
▪ 4GB of memory
▪ 12.5GB of available storage (OS X El Capitan 10.11.5 or later)*
▪ Some features require an Apple ID; terms apply.
▪ Some features require a compatible internet service provider; fees may apply.
Mac Hardware Requirements
For details about your Mac model, click the Apple icon at the top left of your screen and choose About This Mac. These Mac models are compatible with macOS Catalina:
▪ 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)
https://support.apple.com/en-us/HT210190
How to upgrade to macOS Catalina – Apple Support
And caution on 10.15, to see which Apps will no longer work in 10.15 get Go64...
https://www.stclairsoft.com/Go64/