Tom Clancy’s Rainbow Six Siege was officially released worldwide on December 1, 2015. Developed by Ubisoft Montreal, the game initially launched on Microsoft Windows, PlayStation 4, and Xbox One. Over nearly a decade, the title has evolved from a struggling tactical shooter into a cornerstone of the live-service industry, expanding to next-generation consoles and cloud platforms.

While the primary release date marks the game's birth, its ongoing "release" structure via a quarterly seasonal model means there is always a new date for players to track. This guide details the complete release history, from the original 2015 launch to the latest updates in Year 9.

Original Launch and Platform Expansion Timeline

The journey of Rainbow Six Siege began long before its 2015 debut, originating from the ashes of the canceled Rainbow 6: Patriots project. When it finally arrived, it redefined environmental destruction in the first-person shooter (FPS) genre.

Initial Global Release (2015)

On December 1, 2015, the game launched simultaneously across three major platforms. At the time, it featured a modest roster of 20 Operators from five classic counter-terrorism units: the SAS, FBI SWAT, GIGN, GSG 9, and Spetsnaz. Unlike its predecessors, it lacked a traditional story campaign, focusing instead on the "Situations" tutorial mode and the core 5v5 multiplayer experience.

Next-Gen Console Launch (2020)

As the hardware cycle progressed, Ubisoft released a dedicated next-generation upgrade on December 1, 2020. This version brought Rainbow Six Siege to the PlayStation 5 and Xbox Series X|S.

From a technical perspective, this was a significant leap. Players on these consoles gained access to:

  • Performance Mode: Targeting 120 FPS with 4K dynamic resolution scaling.
  • Resolution Mode: Native 4K at 60 FPS.
  • SSD Optimization: Drastically reduced loading times for maps and operator selection screens.

Cloud and Mobile Integration

In June 2021, the game expanded to Google Stadia (now defunct), and it remains available on Amazon Luna. While a mobile version titled Rainbow Six Mobile has been in various testing phases throughout 2023 and 2024, its official global release date remains distinct from the mainline HD game.

Rainbow Six Siege Year 9 Release Schedule

Ubisoft utilizes a "Year" and "Season" system to deliver fresh content. Each year consists of four seasons, typically lasting about 90 days each. For 2024, Year 9 introduces significant overhauls to core mechanics and legacy characters.

Year 9 Season 1: Operation Deadly Omen

  • Release Date: March 12, 2024
  • Major Addition: Deimos (Attacker).
  • Key Features: Introduction of the Deathmark Tracker gadget, a complete overhaul of the attachments and ADS (Aim Down Sights) system, and the implementation of new shield mechanics that allow for more aggressive tactical play.

Year 9 Season 2: Operation New Blood

  • Release Date: June 11, 2024
  • Major Addition: Recruit Remaster (Striker and Sentry).
  • Key Features: Instead of a brand-new character, this season focused on refining the "Recruit" experience for competitive play. Striker (Attacker) and Sentry (Defender) were introduced as customizable options for all players. This season also marked the full release of the R6S Marketplace and the introduction of the monthly membership program.

Year 9 Season 3 and Season 4 Forecast

Based on the established 90-day cycle:

  • Year 9 Season 3: Expected September 2024. This season is slated to introduce a new Greek Operator and long-awaited improvements to the "Siege Cup" competitive system.
  • Year 9 Season 4: Expected December 2024. This update usually includes a major map rework or a new map, alongside a new Operator from a yet-to-be-revealed region.

Historical Season Release Dates (Year 1 to Year 8)

For archival purposes and to understand the game's growth, here are the pivotal release dates for past major operations:

The Early Years (2016–2018)

  • Year 1 Season 1 (Operation Black Ice): February 2, 2016. Introduced the JTF2 (Buck and Frost) and the first post-launch map, Yacht.
  • Year 2 Season 2 (Operation Health): June 6, 2017. A controversial but necessary "technical" season that delayed content to fix server stability and hit registration.
  • Year 3 Season 1 (Operation Chimera): March 6, 2018. Introduced the "Outbreak" PvE event and global ability Operators like Lion and Finka.

The Modern Era (2021–2023)

  • Year 6 Season 1 (Crimson Heist): March 16, 2021. Introduced Flores and the Gonne-6 secondary weapon.
  • Year 7 Season 4 (Solar Raid): December 6, 2022. A landmark update that added Cross-Play and Cross-Progression between consoles.
  • Year 8 Season 4 (Operation Deep Freeze): December 5, 2023. Introduced the defender Tubarão and the new map, Lair.

Technical Milestones and Version History

The release of Rainbow Six Siege isn't just about dates on a calendar; it's about the technical versions that changed how the game plays.

Vulkan API Release (2020)

In early 2020, Ubisoft released a Vulkan API version of the game for PC. This was a critical update for players with mid-range hardware. In our testing, the Vulkan executable consistently provided better CPU utilization and access to features like Nvidia Reflex, which reduced input lag—a vital factor in a game with a "one-shot headshot" mechanic.

Data Center Updates

Over the years, the "release" of new server regions has expanded the player base. The addition of Middle East (UAE) servers and South African servers in Years 5 and 6 allowed players in those regions to finally experience the game with sub-50ms latency, which is the baseline for competitive integrity in Siege.

Release Dates for "The Siege" (Films)

While most users searching for "Siege release date" are looking for the Ubisoft game, there are two notable films that share the name or are frequently associated with it:

  1. The Siege (1998): Directed by Edward Zwick and starring Denzel Washington and Bruce Willis. This political action thriller was released in the United States on November 6, 1998.
  2. Siege (Asedio) (2023): A Spanish-Mexican thriller directed by Miguel Ángel Vivas. It premiered at the Málaga Film Festival in March 2023 and had its wide theatrical release in Spain on May 5, 2023, followed by a Mexico release on September 21, 2023.

What is the Rainbow Six Siege Year 9 Season 3 release date?

The official release date for Year 9 Season 3 of Rainbow Six Siege has not been set in stone by Ubisoft, but based on the current Battle Pass timer for Operation New Blood, the update is projected to launch during the week of September 9, 2024.

Typically, Ubisoft reveals the new season during a major esports tournament (the BLAST R6 Major) and then runs the Test Server for approximately three weeks. If the reveal happens in mid-August, the September launch is almost certain. This season is expected to bring a new Operator from Greece and further refinements to the player reputation system.

How to check for upcoming Rainbow Six Siege updates?

To stay current with the latest release dates and patch notes, players should monitor the following channels:

  • The In-Game News Tab: Displays the remaining days on the current Battle Pass.
  • The Rainbow Six Siege Social Media: Usually provides a "pre-load" announcement 24 hours before a major season launch.
  • Platform Stores: The PlayStation Store and Xbox Marketplace often update their "Coming Soon" or "Latest Updates" sections on Tuesdays, which is the traditional launch day for Ubisoft patches.

Summary

The core release date for Rainbow Six Siege is December 1, 2015. However, the game operates on a persistent seasonal model. The most recent major release was Operation New Blood on June 11, 2024, with the next major update, Year 9 Season 3, expected in September 2024. Whether you are a returning player from the 2015 launch or a new recruit on a PlayStation 5, understanding this calendar is essential for keeping up with the tactical meta.

FAQ

Is Rainbow Six Siege 2 coming out? Ubisoft has repeatedly stated they have no plans for a "Siege 2." Instead, they intend to support the current game for at least 10 years, focusing on engine updates and seasonal content releases rather than a sequel.

What time do Siege seasons usually launch? Major seasons typically launch on Tuesdays. Maintenance usually begins at 9:00 AM EDT (13:00 UTC) for PC, followed by Xbox and PlayStation. The game is usually back online with the new content by 12:00 PM EDT.

When did the Rainbow Six Siege Marketplace release? The Marketplace entered its Beta phase in late 2023 and had its full public release on June 11, 2024, coinciding with the launch of Operation New Blood.

Are the release dates different for different regions? No, Rainbow Six Siege uses a global release model. Once the maintenance is complete, the update is available worldwide simultaneously across all supported time zones.