I do believe the manual prop pitch issue in the E4 is fixed now, didn't try auto pitch, but I flew for about 90 minutes now and I cannot see the dial continuing to advance by itself when I put the prop pitch to the middle position, dial speed seems to be ok now as well.
Other than that maybe the sounds are a little better, no performance issues here, can't tell yet if performance is better (got to try my test mission with lots of planes and clouds)but it's certainly not worse.
Oh and maybe I can mention this here, we not only got an official patch but IL2DCE has gotten an update today as well
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