The 12.x releases of Homestead bring Ubuntu 20.04 to the primary
release branch. If you've previously been using Homestead 11.x, vagrant box 10.x this is a very minor upgrade.
If you have been using the
release branch note this is a major version bump. Homestead is now built on Ubuntu 20.04 with defaults: MySQL 8.0, PHP 8.0, Node 14. You should review the Homestead v11.0.0 Release notes.