Firaxis Games, Aspyr Media and 2K today put out a rather large update to Civilization VI, the June 2019 for Gathering Storm adds in some new features and comes with plenty of balance changes and bug fixes.
Unlike the situation with the new Borderlands 2 DLC, Aspyr Media were able to get Civ VI for Linux updated and ready to go so the Linux version of Sid Meier's Civilization VI is fully up to date, which is fantastic and exactly how it should be done! For a rundown of what's new and changed, their official video is below:
There's a huge amount that's changed and one that's particularly interesting which is a fix to a rather amusing exploit. Previously, you could gift negative resources to an AI, which the developers said had you "essentially giving a gift that grants their stuff back to you"—oh my! Not all of it is for Gathering Storm though, there's quite a bit of polish and updates for those without the DLC too. If you're interested, the full patch notes are here.