The update launched simultaneously across all platforms at . A maintenance period followed, during which servers were down for approximately 3 hours to facilitate the implementation of cross-progression. Patch Sizes

According to the official Ubisoft patch notes addendum , the download sizes for the initial seasonal release were: 5.44 GB Steam: 5.1 GB Xbox Series X: 4.44 GB Xbox One: 4.01 GB PlayStation 5: 4.31 GB PlayStation 4: 4.59 GB Key Season Features

Operation Solar Raid (Year 7 Season 4) for Tom Clancy's Rainbow Six Siege was released on . Release Times

Solis , a Colombian Defender equipped with the SPEC-IO Electro-Sensor for detecting attacker gadgets.

Normalized ADS movement speed for all operators and transitioned the Battle Pass to a non-linear, branching path system. Y7S4 Solar Raid Patch Notes Addendum - Ubisoft

Nighthaven Labs , a Singapore-based research facility that was unbannable during its debut season.