First problem i noticed is that my calendar is somewhat broken.

1. The Calendar Widget only displays january not the enties from feb. (could be related to 2.)
2. I have a entry on feb the first and in the calendar monthly view it will be shown with a marker if i click on the day the entry is missing.

i tried exporting and importing the calendar again but the buggy feb the first is still there.

This does not happen with the old firmware.