v5.7 [Nov 3, 2011] 
--Small performance optimizations
--Bug fix for the two player splitscreen mode
--Bug fixes and performance improvements for the binocular view
--Minor translation fixes
v5.5 [Dec 1, 2010] 
- Windows: Fixed a small problem with computers using older 3D drivers supporting only OpenGL 2.1
 - Mac OS X: Fixed a bug with checking for new versions from within AeroFly 5.
 - Fixes a bug with NVIDIA cards and 4D sceneries at “Ultra” quality.
 - After installing this update, the main configuration file is resetted. You have to redo a few settings again to restore your desired settings.
 - Model RareBear added
 - BK 117 tail rotor rotation direction changed
 - Added smoke to the DHC-6
 - Obesession adjusted
 - Limbo and Heli precision contests fixed
 - PC21 servo speed modifications
 - Adjustments to the control throws for the Yak-55 model
 - Auto rotation contest fixed for scenery Bendern
 - New FPS warning: This will show you a Warning message if your frame rate gets too low. You can turn this feature on or off in the Graphics menu
 - AeroFly 5.5 is a substantial update with over 35 new models, 6 new sceneries and many new features.
 - New gliders: Alpina 5001, DG-1000S, Falke SF 25-C, DFS-Reiher III
 - Helicopters: BK 117, Eagle Freya, EC-135, Hirobo SDX 50, Logo 400, Logo 600, T-Rex 600 E, T-Rex 700 E, Hirobo Turbulence D3, JR VIBE 50
 - General: C-5A Galaxy, PBY Catalina, Robin DR400, F-16, Vought F4U Corsair, Bölkow Bo 208 Junior, Fokker Dr.1, Krill Katana, Aermacchi MB339, Messerschmidt Me-163, Obsession, P-38 Lighting, Krill Spark, Boomerang Sprint, Tiger Moth DH.82, Yakovlev Yak-55
 - TrueScale: Sopwith F.1 Camel, DG-1000S, DHC-2 Beaver, Robin DR400, Mustang P-51D
 - New photo sceneries: Weldon Dynamic Soaring Site California, MSV Rottenburg, Olsen Stadium, Bendern (MFGL, Modellfluggruppe Liechtenstein), Arvada Associated Modelers (Golden Colorado USA), Wat Phra Si Sanphet Temple (Ayutthaya, Thailand)
 - Multiplayer VoiceChat support
 - Support for flybarless helicopters
 - Support for repaints (check the F-16!)
 - Improved water animation