I uninstalled my previous modded IL-2 setup just to test 4.11 and this is what ive encountered so far:
-First I ran the missions which frustrated me in 4.10.1. This german B-17 intercept mission in a FW-190 A8 over normandy for example. In the old version everytime my AI-flight saw the bombers, they attacked regardless of my orders. Now they kept the formation until I gave the orders
-After I gave the attack order, I could see my flight struggling with me to reach the altitute of the bombers

. In 4.10.1 I was pissed everytime when I saw them zooming away and reaching unbelievable speeds in a short time
-The gunners in the B-17 are much more realistic imho. Can´t hit you when you´re moving fast

. I ran a test in 4.10.1 once: Me-262 with 700km crossed the path of a B17 at 90°, roughly 800-1000m behind it. I was hit 90 percent of the time. This was ridiculous. So thumbs up here.
-The texture for the high clouds

. In the old version (especially when you had your visibility distance set to 72km) you could see this "ugly" repetitive sky texture. Now Daidalos improved this -> VERY NICE
and and and ....
It feels a little bit like a new game. Best patch ever. Period