+Pre-Release Version 2.2.0rc2 [?? ??? ????]
+------------------------------------------
+ - added support for stereo WAV sound files
+
+Pre-Release Version 2.2.0rc1 [31 DEC 2002]
+------------------------------------------
+ - level series artwork now configurable via level series config file
+ - single graphics and animations can now be replaced with different
+ ones (independantly from default image files which may be larger)
+ by defining and using additional image files
+ - element animation length, speed and mode now freely configurable
+ - automatic tape playing function for game engine and level testing
+ - missing steel wall graphic added (thanks to Equinox Tetrachloride)
+ - added new contributed levels from the following players:
+ + Abby King (14 levels)
+ + Andreas Buschbeck (80 levels with complete artwork set)
+ + David Hutchinson (25 levels with graphics set)
+ + Equinox Tetrachloride (150 levels guaranteed to be solvable)
+ + Sylvan Hancock (39 levels)
+
+Release Version 2.1.1 [13 AUG 2002]