I currently run MM3.0 based on the old bundle installation. It seems
to work just fine although with a number of minor and major annoyances
that probably have been fixed now.
What is the rekommended way to upgrade to the newest version? (newest
_usable_ version, of course)? Is it docker-only with a migration from
the current solution to a docker based? If so, any ideas or pointers
on how to go about this?