Rainbow Six Siege was initially released on December 1, 2015 marking its third year. We have seen numerous content be shown to us from Ubisoft. The most recent content, Year 3 Seasons 1-4, have changed the game entirely. They have changed map selection, Ubisoft changed the UI, and added 8 new operators to the roster, each with their own unique ability. Operation Chimera, Operation Para Bellum, Operation Grim Sky, and Operation Wind Bastion all came to the game in Year 3. Approaching Year 4, the community hopes to see new changes being made to make R6S more enjoyable for everyone..