I just did order a new board revision. There were not much changes:
- added connection between DTR and PA15 (for reset over uart -> bootloader)
- changes wrong label (see errata)
- added revision number
- changes solder jumper to bigger ones
- some minor optimisations

And for ~2$ it was quite worth for me to test a for me unknown board house (perhaps you can guess it on the silkscreen color and plating)

I will share the new boards when I have tested them.