I have a Mac Mini late 2012 . I still run MAC Catalina . How can I upgrade to a newer version for security reasons ?
Upgrade possibilities for MAC OS on older MAC mini ?
Mac mini, macOS 10.15
You can't because 10.15 Catalina is the highest macOS that a 2012 Mac mini can run.
You can keep using the 2012 Mac mini running Catalina. However you will need to get and use a third-party web browser like FireFox, Brave or Chrome in order to access your banking and streaming services.