The new Rainbow Six Siege season, called Operation High Stakes (Year 10 Season 3 of Siege X), is set to be released on September 2, 2025. This season was revealed on August 17, 2025, and includes a new defender, Denari, the modernization of maps like Consulate, Nighthaven Labs, and Lair, plus various balance and gameplay updates. Players can start trying out the new features on the test server from August 18, 2025.
Prior to this, Siege X—a major overhaul for the game's 10th anniversary—was launched worldwide on June 10, 2025. The season following that release is the one coming in September.
To summarize in timeline order:
- Siege X launched June 10, 2025
- Operation High Stakes (Year 10 Season 3) announced August 17, 2025
- Operation High Stakes release date: September 2, 2025
This September date is the confirmed next new Siege season release.
