when does the new rainbow season come out

The new Rainbow Six Siege season, called Operation High Stakes (Year 10 Season 3), is set to be released on September 2, 2025. The season was officially revealed on August 17, 2025, and the test server opened on August 18, 2025, allowing players to try out new features before the full launch. This season includes a new defender named Denari, new maps modernized, operator balancing changes, and other gameplay updates.