Before you download macOS Catalina 10.15, ensure your Mac is compatible. Generally, most Macs from can run Catalina. Supported 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)
There are two ways to download macOS Catalina 10.15: download macos catalina 10.15