https://www.gamespot.com/articles/rainbow-six-sieges-new-dlc-announced-as-operation-/1100-6454595/

More recently, Rainbow Six Siege received a big update that changed a bunch of operators: Kapkan's traps have been completely reworked, while Blitz can now sprint without lowering his shield. For more, read the full Rainbow Six Siege Mid-Season Reinforcements patch notes.