Ah yes, it seems I overlooked that when I deactivated all the plugins and only reactivated the persona theme.
Seems to be working to a fashion, just need to get some plugins I rely on updated.
While on 0.9 i made a few changes to the nodebb\public\templates\partials\post.tpl (nothing major). This worked fine on 0.9 - but after upgrading to 0.9.1 and re applying the changes they disappear after starting nodebb. The template file reverts back - has something changed in 0.9.1 that is recreating these files? Should i be changing another file now?
Those files ain't made for customization.
You're supposed to edit template files within your theme (or plugins for specific ones).
I'm not sure whether it didn't overwrite those within
0.9.0, but it was supposed to do I guess.
Best approach is to build a new theme, based on your current one.
This way you only have to create the template files you want to overwrite and it's the clean way.