Played a few rounds and noticed especially with fighters that my shots didn't seem to be registering...after a while I found out that even though my bullets would hit the plane no damage was inflicted I could even see the sparks and the impacts hitting a bf 109 to no avail.
It would seem that in order to hit a plane you now need to "miss" all of my shots were well in front of the plane obviously missing but I was getting normal damage done so fighters are obviously bugged now. Bombers to a much lesser extent. Stukas seem to be affected as well. I have yet to fly on the German side since the update but I would assume the British planes are also bugged as I had an AA tank shooting directly at me hitting my plane with no damage done.