Revamped collision detection (again) by adding a DisplacementGrid resulting in a fairly large performance boost, slowed down the minimum frame time to compensate for this boost, tried to prevent crashes by altering the SunderBlast to make only one sound at a time instead of multiple, added a maximum mech velocity, altered mech animation to make it actually stop when it should stop
Various improvements to collision detection and prop management with an axis-sorting collision routine for a big performance boost, non-rectangular collideable props, tinkering with the launch position to keep mechs from firing from their crotches, some new weapon icons, and various other tweaks.
A switch from ClanLib 0.2.x to 0.4.x, a new autoconf-generated Makefile, particle based explosions, a particle-based flamer weapon, improved graphics, improved drawing of tiled sprites, and a complete workover of the game's internals to rely less on class inheritance and more on object composition.
