+New in 0.7.3
+* May 18, 2000
+* Added a radio stack 2 VOR/ILS and an ADF to the instrument panel.
+ You can change the frequencies by clicking on the knobs on the
+ instrument panels. You can now navigate with VOR/ADF/DME and fly
+ ILS approaches.
+* Added a chronometer to the instrument panel.
+* Added a "wet" compass to the top of the instrument panel.
+* Compass, vsi, and altitute instruments and vacuum system are more
+ accurately modeled.
+* Added a magnetic variation model.
+* Added navaid database management and query code.
+* Added magvar offset to VOR radials.
+* Heading bug now display magnetic heading rather than true heading.
+* Autopilot now has modes to track a VOR and GS.
+* Added custom joystick client support so sim can be flown from a
+ remote joystick connected to another machine. This is in support of
+ some custom hardware located in the human factors research lab of the
+ university of minnesota.
+* HUD controls are a bit different "h" toggles through day/night/off
+ modes and "H" cycles through brightness levels.
+* Norman Vine contributed code to optionally do antialiased hud lines
+ on hardware that supports this. Norman also contributed additional
+ hud cleanups and updates.
+* Updates to JSBsim flight dynamics code that includes a generic
+ reconfigurable flight control system, a initial state trimming routine,
+ support for wind and weather, support for flaps, independent trim control,
+ config files changes
+* Updates to LaRCsim flight dynamcis code contributed by UIUC that
+ allows loading aircraft specifications at runtime from config files.
+ UIUC is using flightgear as a platform to do icing research. The UIUC
+ aircraft use the c172 gear model for now which causes some weirdness
+ on the ground for some of the larger aircraft.
+* Flight model no longer has to be chosen at compile time.
+* Separated ephemeris code from the actual sky rendering code and gave
+ this whole section a big overhaul. The moon should now consistantly
+ have the correct phase.
+* Rebuilt the sky dome using ssg.
+* Removed dependencies on mat3.h and friends (old srgp support lib)
+* Airport lookups now done through gdbm (a light weight embedded database.)
+* Converted ssgVTable's to ssgVtxTables which do proper memory
+ management and should facilitate use of compiled vertex arrays once
+ ssg add support for these.
+* Overhauled autopilot internals, separated out the gui controls from
+ the actual autopilot code.
+* Cygwin32 build fixes
+* MSVC++ build fixes
+* Mac build fixes
+
+New in 0.7.2
+* February 17, 2000
+* Lots of code reorganizations
+* Build requires plib-1.1.x
+* Build requires SimGear-0.0.x
+* LaRCsim/c172 is now the default aircraft model.
+* Added flaps support to control model.
+* Lots of updates and tweaks for the LaRCsim/c172 model.
+* Use a more standard texture/blend mode combination for sun/moon halos to
+ avoid render path that's not supported by all cards/drivers.
+* Change reported speed on hud from V_equiv_kts to V_calibrated_kts
+* Instrument panel rewrite by David Megginson. This isn't quite as flashy
+ as the first pass, but is much more functional, plays much better with
+ opengl, and it should be relatively easy for someone with graphical skills
+ to make it look more spiffy.
+* MacOS fixes contributed by Darrell Walisser.
+* Many JSBsim updates.
+* Added a screen snapshot facility (F3).
+* Added a load/save state function contributed by David Megginson.
+* Added support for various I/O protocols and channels so that flightgear
+ can communicate with itself and other programs through a variety of means.
+* Bug fix: The aircraft model used for external views was being included in
+ the height above terrain check so when the view position and the aircraft
+ model collided the current altitude kept getting pushed up to compensate,
+ but of course the aircraft model would get pushed up as well because it
+ tracks the current aircraft position and orientation. Thus you had a never
+ ending cycle ...
+* Oliver's multiplayer network code now moved to his own subdirectory:
+ NetworkOLK
+* Added simulated cloud puffs as we pass through the cloud layer.
+* Cleaned up some memory leaks occuring between ssg and flightgear.
+* Update to Christian's weather data base code.
+
+New in 0.7.1
+* Durk Talsma added a nifty cloud layer.
+* Default to Christian Mayer's new weather system.
+* Added routines to do screen printing contributed by Mark Vallevand.
+* Added routines to do screen shots to ppm graphics file (all platforms)
+ contributed Rich Kaszeta.
+* Added a magic carpet (aka slew) mode.
+* Added a hot air balloon simulator mode. (alpha)
+* Added a simple (direct lincage) autocoordation feature.
+* Added a mode to control view (side to side and up and down) with the mouse.
+* Fixed a DEM decoding problem which caused most of the terrain to be 256
+ meter too high (and regenerated the world scenery with proper elevations.)
+* Updates to JSBsim.
+* Added support for a pilot view offset from the center of gravity.
+* Various platform portability fixes.
+* Updated time-offset/syncing command line options.
+* Updated the FDM <==> Flight Gear interface to be more object oriented.
+ This should hopefully pave the way for being able to simulate several
+ concurrent entities.
+* Removed unimplemented menu entries.
+* Various scenery tools changes and enhancements in preparation for adding
+ runways (hopefully for the next release.)
+
New in 0.7.0
* Autopilot can now fly great circle routes.
* Incorporated a first stab at some networking code contributed by Oliver