Why goes Gamestop list a later version number than the downloads page here at Stardock for Galactic Civ Ultimate Edition? Stardock has 2.04.017 and Gamestop has 2.04.019. I would have thought the most recent source would come from Stardock directly (and I hate dealing with Gamestop). Is the Gamestop version somehow specific to them but not more current? They are different file sizes too (Gamestop's being listed as larger).
Which should I be using? Any help is appreciated.