Double-click Install macOS Catalina.app in your Applications folder. Click “Continue” and agree to the software license.
Catalina needs at least to install.
Because Apple's standard Software Update pane in High Sierra only searches for point-updates within version 10.13, . Step 1: Verify Hardware Compatibility how to update macos high sierra 10.13.6 to 10.15
Your Mac needs at least 4GB of memory and roughly 12.5GB to 18.5GB of available storage space to run the installation smoothly. Step 2: Check for 32-Bit App Compatibility Double-click Install macOS Catalina
Apple sometimes hides older OS versions. Use this direct App Store link: https://apps.apple.com/us/app/macos-catalina/id1466841314?mt=12 Because Apple's standard Software Update pane in High
Check the box for or click the Time Machine icon in the menu bar and select Back Up Now .
The following Mac models natively support macOS Catalina 10.15 : : 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 or newer Mac Pro : Late 2013 or newer