Bit the bullet and updated firmware to 2.2.3.
Only have been able to try it indoors since it's raining hard here. Flies similar to 2.1.16, maybe a bit more snappy and stable. No altitude drops as expected using indoor hull.
Video seems to be sharper but maybe because I also re-focused the lens.
No change in battery consumption - roughly 8.5 minutes till auto land (indoor hull, orig batt and recording to iDevice the whole time)
Will try outdoor flight when the rains stop.
DJI Phantom | DJI F330 | NAZA M V1 | NAZA M Lite