Galactic Civilizations II 1.2 is a significant free update to all GalCiv II owners because it has a LOT more content than what an update normally would have. Besides a significant change in the combat system, lots of UI changes, and AI enhancements, v1.2 includes advanced modding support including a Stardock developed mod featuring a new set of alien races, custom planets, new technology tree, new UI, etc., all for the "example" mods.