This version officially integrated the mandatory launcher for Steam users. Included DLC Content
As the "ultimate" version of the original game, it includes massive quality-of-life updates and new content: FГЎjl: Kerbal.Space.Program.v1.12.4.03187.Incl.A...
Fixed an issue where custom day/year lengths were ignored by the Alarm Clock app. FГЎjl: Kerbal.Space.Program.v1.12.4.03187.Incl.A...