Can I update Yosemite to Catalina?
My MacBook Pro is from 2009 and currently has Yosemite. Found Catalina in the app store but said it was unable to be downloaded....
MacBook, OS X 10.10
No your mac does not meet the hardware requirements for macOS Catalina, as Neil says you can upgrade to
Mac OS X El Capitan, read and follow the instructions in this Apple article,
How to upgrade to OS X El Capitan – Apple Support
Make a full back up of your mac before upgrading.
Mac OS X El Capitan is the last OS you can upgrade to.
