This is just a quick update for the game, designed to fix the issues with all the civilians being hostile and all the aliens spawning as Androns (which meant they didn't have the correct sprites and didn't drop Plasma Pistols, which are an important part of the tech tree). Both these were effectively making the game unplayable.
Changelog:
Civilians will no longer appear as aliens on ground combat missions.
Pressing the hotkey for crouching will no longer execute the action twice
The combat GUI is raised from the bottom of the screen, allowing it to be used as scroll area.
Xenonaut soldiers can now be healed even when standing on alien corpses