- Login data was lost for several android apps.
- I had to re-run the media indexer (via settings → helpers), since neither the gallery nor the android apps could recognize the pictures on sd anymore.
- The sailfish shape for the android app icons wasn’t applied for some apps (e.g. the cantanmen carsharing app, signature spoofing app, Eufy clean app).
- app folders in the drawer menu were partially lost and had to be filled again.
To me these are minor issues, I had worse 
Very feature-rich update, it’s great!