I can now confirm that also fixed all my tons of errors after the upgrade.
I just reinstalled the bindings which i havent all listed within the addons.cfg file.
It is the case that after upgrading this file is not getting migrated but getting completely overwritten. i just activated necessary lines (everything was commented out).
Now everything works again and being on #1088.
Maybe someone can look into it why addons.cfg is not “migrated” properly when doing an upgrade - this saves a lot of time to people 
hooray