The SibWings retail site is still up and running, but there are no updates listed on that site. The support forums are dead and when I run the updater program for the AN2, it also comes up with nothing.
The air file I have that came with the aircraft installer is Antonov_AN2_v2.1.air and is dated 6/5/2013.
I imagine that the 2.2 and 2.3 air files are just tweaking some of the settings inside the air file itself that controls how the model reacts. Correct me if I'm wrong, but I don't think that repaints are affected by data changes inside the air file. I just have to make sure that all the repaints reflect the same air file name in the model line of the aircraft.cfg file that represents each repaint.
If anyone can send me an updated version of the air file, pm me and I'll send my email. I don't think that would violate any copyright rules as I do have the complete model, just not the air update.
Thanks, for any assistance
Rick