+ Sound
+ * Complete overhaul of the sound code
+ * doppler effects
+ * distance attenuation
+ * 3D positional sound sources
+ * assignment of sound sources to external objects (i.e. AI controlled
+ aircraft)
+ * User selection of the sound device
+
+ Visual Effects
+ * Use of Shaders for dynamic textures
+ * Use of Effects files
+ * Improved 3D clouds
+ * Color changes based on humidity and other weather effects allow for very
+ dramatic lighting conditions
+ * Dynamic water textures
+ * Text animation based on OSGText
+
+ Usability
+ * Allow screenshots in more common file formats
+ * User selectable sound device
+ * More intuitive selection of the weather settings through the GUI and/or
+ commandline
+
+ Infrastructure
+ * Airport geometry data can be read from the scenery, allowing for more
+ flexible regeneration of terrain tiles
+
+ Internals
+ * Improved efficiency of the property tree
+ * A more efficient ground cache
+ * Many improvements to the route management code
+ * Removed many compiler warnings
+ * More realistic atmosphere model
+
+ Behavior
+ * More realistic ILS behavior
+ * Autopilot improvements
+ * A generic autobrake function
+ * Winds over mountainous areas cause up- and downdrafts that can be used
+ for gliding
+ * More realistic behavior of the route manager
+ * Wild fires, which can be extinguished by firefighter aircraft operating
+ across the multplayer server
+ * Navaid frequencies and radials can be transmitted to Atlas
+
+ Utilities
+ * A python script to visualize Yasim configuration files in Blender
+
+ AI
+ * Allow traffic departing and arriving at the same airport
+ * Add Ground Vehicles - including automobiles, trucks, articulated trucks,
+ trains (including high speed trains)
+ * ATC interactions between AI aircraft and ground controllers
+ * Performance characteristics of AI aircraft can be specified in a
+ performance database
+ * Push-back vehicles are available for a selected number of aircraft
+ * Add escorts for AI carrier - frigates, guided missile cruiser, amphibious
+ warfare ships now make up the Vinson Battle Group
+ * Improved radar functionality - now detects AI escorts etc.
+ * AI objects are now solid (i.e. users can collide with them)
+ * Some preliminary support for SID/STAR procedures for AI aircraft
+
+Version 1.9.0
+* December 20, 2008 (source code snapshot release)
+
+
+New in 0.9.10
+* April 5, 2006
+
+* Many improvements to the multi-player mode. Other airplanes are now
+ updated smoothly. There is a really nifty google maps based moving
+ map that anyone can use to track all online activity.
+* AI planes have improved ground following and are smarter about
+ selecting the active runway.
+* Include the ability to send ATC and AI aircraft communication to a
+ local festival server to be converted to spoken speech output.
+* Added a detailed model of the Honeywell MK VIII EGPWS ground
+ proximity warning system.
+* Complete overhaul/redo of terrain textures based on USGS satellite imagery.
+* Added background ATC chatter.
+* Updated/improved rain cone rendering.
+* Updated manual.