How to Upgrade to Linux Mint 20.3

You can upgrade Linux Mint 20.1 or 20.2 to Linux Mint 20.3. If you’re on an older 19.x release you will need to upgrade to Mint 20 first in order to upgrade to the latest point release.

But before you upgrade anything you need to be sensible: backup all important files. You should also use the Timeshift utility (it comes with Linux Mint) to create a system snapshot. This way you can quickly restore to a working version of the OS should anything go wrong during the upgrade process (though don’t panic: it rarely does).