Hi,
I have same issue now… I was running Virtualmin in CentOS 6 for years… and last month I started migrating to a temporal server I already had running CentOS7, and after starting this thing I said “Ok, lets continue an migrate to CentOS 8 no avoid doing this till 2029”… i finished this last week… and now I see this 
… Murphy’s law!
What options do we have now? I see a better solution moving to Ubuntu 20.04 LTS that has extended support till 2030… than Debian that has it for fewer years… any contraints or suggestions? Or any easier way to avoid migrating again from my fancy new CentOS 8 that I was super proud of
Thanks!