Recent version updates:
v1.12.6.1:
-Fixed the "Starting out on a journey" achievement and a few others for players who started playing the game before the recent achievements update was released
-Training achievements are now always unlocked for achievements done at higher difficulties
-Fixed the "Below the surface" achievement
v1.12.6.2:
-Fixed the simple model set
-Tweaked model memory allocation
-Added sound/music and controller/keyboard options to the config program
2/28/2015 update:
-Several updates to mission level designs; Made Training difficulty more fun to play, Pilot difficulty more intuitive to read in some areas and gave all difficulties better bullet patterns in some areas