https://www.gamespot.com/articles/rainbow-six-sieges-42-update-is-out-here-are-the-p/1100-6456314/

Ubisoft has rolled out the latest update for Rainbow Six Siege this week, and it's a significant one. The 4.2 patch, which serves as the Mid-Season Reinforcement patch for the current season, is now live on PC, PS4, and Xbox One, introducing a variety of buffs and nerfs to individual Operators.