Knights of the Old Republic II has just received a major update on Steam
as it's now available for Windows, Mac, Linux, and Steam OS. The update brings 37 Steam Achievements, Steam Cloud saves. Steam Workshop mods (the Restored Content Mod is now available straight through Steamworks), native widescreen resolution support, resolution support up to 4k and 5K, and gamepad support.
An employee of Aspyr, the company responsible for the ports of the game, stated on the Steam forums that they are working with GOG and Disney to try to get these changes on GOG.com as well, and that they should know more after Gamescom.