My Dev Desktop installation seems to be buggy:
1. When I try to launch my site's database from the DevDesktop Control Panel, I get the following message:
MySQL said: Documentation
#1273 - Unknown collation: 'utf8mb4_bin'
2. Dev Desktop keeps trying to push install upgrades at me. When I attempt to download and run them, (having quit Dev Desktop first), the install fails during the phase where it attempts to back up my existing sites.
I'm not sure how to proceed from here, since I don't know what collation should be set for my DB's or how to set them, or how to upgrade Dev Desktop without losing my existing work.