I'm on version 12.1 and for the past few months have been periodically installing 12.0.1 to work on a particular project, then reinstalling if I need a more up-to-date version for other work. It's a large, complex project and I've had nightmares updating it in the past, so I've been studiously trying to avoid that.
Anyhow, it was working fine until this week, when it seems that 12.0.1 disappeared from my 'Other Versions' menu - see screenshot below:
I'm sure there's something I'm missing, but can't figure it out! Any help gratefully received.
It seems they have all gone.
Only thing left are the latest build of that particular version.
I will ask around.