The Next Rainbow Six Siege Season: Y11S1 Release Date And Operation Tenfold Pursuit Details

The ultimate question for every dedicated player is: When does the new *Siege* season come out? As of today, December 15, 2025, the latest major update, Year 10 Season 4 (Y10S4) Operation Tenfold Pursuit, is officially live, having kicked off the game’s massive 10th Anniversary celebrations.

If you are looking ahead to the *next* completely fresh seasonal launch, the wait is not long. The next era of content, Year 11 Season 1 (Y11S1), is expected to launch in March 2026, following its full reveal at the annual Six Invitational tournament.

The Next Major Launch: Year 11 Season 1 (Y11S1) Release Window

For players who have already mastered the current season, the focus shifts entirely to the next seasonal drop: Year 11 Season 1. While Ubisoft has not yet provided a hard release date, the long-established seasonal cadence and the timing of the annual competitive event provide a highly accurate prediction.

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The new year of content is consistently revealed during the Six Invitational (SI), the *Rainbow Six Siege* World Championship.

• Full Reveal Date: The new season's content will be fully unveiled during the Six Invitational 2026 in Paris, France. The event is scheduled to run from February 2 to February 15, 2026. The reveal panel typically takes place during the final weekend of the tournament.
• Test Server (TS) Date: The new season's content hits the Test Server (TS) immediately after the Six Invitational reveal, which means players can expect to try out the new Operator and map changes in mid-to-late February 2026.
• Expected Live Release Date: Following the standard two-to-three-week Test Server period, Year 11 Season 1 is projected to launch on the live servers in March 2026. This places the release approximately three to four weeks after the Six Invitational concludes.

This Y11S1 launch will mark the true start of a brand-new year for *Siege*, introducing the first new Operator and the initial major gameplay changes for the year. This annual shift is arguably the most significant update for the game, resetting the meta and introducing fresh tactical possibilities for both Attackers and Defenders.

What is Currently Live? Operation Tenfold Pursuit (Y10S4)

If you are returning to the game right now, the most recent update you need to dive into is Operation Tenfold Pursuit. This season is a massive milestone, launching on December 2, 2025, and serving as the centerpiece for the game's 10th Anniversary celebrations.

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This update is less about introducing a new Operator and more about significant reworks, map changes, and anniversary content that fundamentally alters the current meta and celebrates *Siege* history.

Major Features of Operation Tenfold Pursuit

Operation Tenfold Pursuit introduced several key features that are crucial for all players to understand, especially those who main certain iconic Operators or maps.

The Thatcher Rework and New DMR

The most impactful change of Y10S4 is the long-awaited rework of the legendary Attacker, Thatcher. The goal was to make his EMP Grenade gadget less of an absolute counter and more of a tactical utility.

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• EMP Gadget Remaster: Thatcher's EMP now has a different area-of-effect and interaction with Defender gadgets, requiring more strategic placement and timing. This change is designed to reward tactical execution over simple area denial.
• New Primary Weapon: To compensate for the utility change, Thatcher receives a powerful new primary weapon, a Designated Marksman Rifle (DMR), giving him more fragging power and increasing his versatility in long-range engagements.

Map Rework: Fortress

The Moroccan map Fortress has received a full rework, bringing it up to competitive standards.

• Improved Flow: The rework focuses on improving the flow of rotation and making key sites more defensible.
• Clarity and Balance: Unnecessary clutter and confusing angles have been removed, making the map clearer for competitive play and a more enjoyable experience in Ranked.

10th Anniversary Celebrations and Wild Card Event

As part of the massive 10th Anniversary of *Rainbow Six Siege*, Operation Tenfold Pursuit features significant in-game events and rewards.

• Wild Cards Siege Event: A special, limited-time event in December that brings back beloved elements from *Siege*'s history, including callbacks and Easter Eggs to early versions of the game, like Night Maps.
• Free Anniversary Content: Players can expect free background cards, exclusive cosmetics, and unique challenges tied to the decade milestone.
• New Universal Primary Weapon: A new primary weapon has been introduced to the game's universal pool, offering more loadout variety for several Operators.

The Future: Year 11 and Beyond

The launch of Operation Tenfold Pursuit officially wraps up Year 10, which was a landmark year for the game, introducing the R6 Siege X evolution and major overhauls to the core experience.

The focus now shifts to the Year 11 Roadmap, which will be detailed at the Six Invitational. Players are eagerly anticipating news on the following entities and features:

• New Operators: The Y11S1 Operator and their unique gadget will be the headline reveal.
• Map Pool Updates: Further map reworks or the introduction of a completely new map are always a possibility.
• Seasonal Cadence: Ubisoft is expected to provide an update on the seasonal structure, including the timing of mid-season events and new Operator releases throughout 2026.
• Anti-Cheat and Security: Continued improvements to the anti-cheat system and player-to-player reporting mechanics are perennial priorities.
• Balancing Changes: Further tweaks to existing Operators like Jäger, Ash, and Zofia, or changes to weapon recoil and movement, are likely to be teased.

In summary, while the current season, Operation Tenfold Pursuit, is a massive update that will keep players busy through the holidays, the next true "new season" is Year 11 Season 1, which will be fully revealed in February 2026 and is expected to launch in March 2026. Keep an eye on the official *Rainbow Six Siege* channels for the exact date and time of the Six Invitational reveal.