They're still updating the actual updates/changes, but there are:
- loads of flyable aircraft that were previously AI only
- loads of altogether new aircraft (inc new Korean era jets)
- updated models and skins for 109s, spits etc
- Introduced helicopters
- new tanks
- new ships/subs
- new vehicles
- new sounds
- new weapons system ???
http://ultrapack.il2war.com/index.php/topic,3892.0.html
Going to log in again tonight and see (hope) they've added new maps.