@GodIsNull
Thanks, and yes, the idea folders inside the projects still existed, so did the general config folder of intellij.
I downgraded and got my configs back. So not too much lost.
What bothered me that, all sdk’s, virtualenv, color settings, themes, plugins, everything was back at the defaults.
Some projects require several different virtual envs because of library versions.
It took days to get that configured the way it suited me. And then see it all gone by a simple upgrade…