8.0 to 8.5 Upgrade - Missing All My Customization.

Upgraded from 8.0.35 to 8.5.10

All my custom Workspaces are missing
Custom plugin lists missing
Preferences appear to be missing my customization

I also notice 8.5 was installed in it’s own folder rather than overwriting what was in my 8.0 folder. I can still open ver 8.0.35, so it’s like 8.5.10 was a fresh install (hence, missing all my customization) rather than installing as an upgrade. I downloaded the upgrade only…

Any advice?