Quick answer: Rainbow Six Siege Operation Vital Signal, the final season of Year 11, launches on December 1, 2026. It remasters Doc with a new E-Heal Monitor, adds the MBZ-19 submachine gun for Jäger, Warden and Thunderbird, and splits Ranked into separate Solo/Duo and Flex playlists. Current as of Ubisoft’s official season page and Nov 15 press release.
Ubisoft revealed Operation Vital Signal at the BLAST R6 Major Osaka on November 14, right before FaZe Clan swept DarkZero in the grand final. The official Rainbow Six account confirmed the season lands on December 1. Here is everything Ubisoft has confirmed so far.
Doc’s remaster: the E-Heal Monitor
Doc is the final Operator remaster of Year 11, and the Stim Pistol is gone. Teammates deployed with Doc carry a patch that he can trigger remotely with the E-Heal Monitor, either to heal them over time or to pick them up when they are downed. Only one patch can be active at a time, but Doc can still use the monitor on himself while it is running on an ally. That lets Doc support a roamer from a safe spot instead of chasing them across the map.
Ranked splits into Solo/Duo and Flex
- Ranked Solo/Duo: for solo players and pairs, with its own rank and progression.
- Ranked Flex: the continuation of current Ranked for solo players and squads of 2, 3 or 5.
- Cross-queue matchmaking: duos may be moved into Flex lobbies to keep queues short. Ubisoft says they get a Ranked Points bonus for a win, or lose fewer points for a loss.
- Lower unlock: Ranked now opens at Clearance Level 30, down from 50.
New gun and balance changes
- MBZ-19: a 9mm SMG with a 64-round magazine, 33 damage per round and 750 rounds per minute, for Jäger, Warden and Thunderbird.
- Thunderbird: starts with 4 Kóna Stations (up from 3) on a 10 second cooldown (down from 15). Stations now cleanse stun and concussion, prioritizing that over healing.
- ACS12: damage drops to 45 (from 69) and the magazine to 20 rounds (from 30), but you now carry 6 magazines instead of 4.
- TCSG12: damage drops to 50 (from 75).
Maps, events and every date we know
- December 1: season launch. Winter Daily Rewards run from December 1 to January 15, with 20 login rewards, including 5 Celebration Packs with a chance at the Gold Dust and Glacier skins.
- December 22: a DOOM Slayer Elite set arrives, per Ubisoft’s press release.
- January 19 to February 2: Half Reinforcements on the Testing Grounds playlist, for Alibi, Frost, Sentry, Tachanka and Thunderbird.
- Events: Freeze for All runs for 3 weeks in the first half of the season, with Sledge, Rauora and Aruni joining. Grand Larceny returns in February for 3 weeks.
- Maps: Bank gets a new attacker entry with extra cover near the Alley Access spawn, and Yacht, Favela and Tower are modernized.
Also coming: a Social Hub with Invite by Code, opening up to 10 Alpha Packs at once, and Hostage and Secure the Area back in Quick Match. Ubisoft has not posted a Test Server date on its official season page, so we are not listing one.
Our take
The Ranked split is the change most players will feel every night. Solo players have wanted protection from five-stacks for years. Doc trading a pistol you can miss for a remote heal is the right fix for a medic, and the Thunderbird buff makes her a real anchor pick. Watch the shotgun nerfs and Doc’s new kit first when the season goes live on December 1.
