patch · September 23, 2026

Tom Clancy's Rainbow Six Siege Y11S3.1 Patch Notes

Tom Clancy's Rainbow Six Siege update Y11S3.1 refines several operators, including Buck, Castle, and Sledge. The patch also tackles a lengthy list of bug fixes for maps, operators, and the user interface.

Tom Clancy's Rainbow Six Siege has received patch Y11S3.1, bringing a round of quality-of-life tweaks and refinement changes to select operators. The update adjusts weapon damage, gadget response times, and ammo counts without attempting to overhaul the existing meta. Alongside these operator adjustments, developers deployed dozens of fixes addressing map navigation, user interface glitches, and interactions involving Noor's Horus Lance.

Operator Refinements and Weapon Buffs

Buck receives a total skeleton key ammo increase to 36, up from 31, allowing for extended vertical play. Castle's Armor Panel now requires 10 melee hits to destroy instead of 9, increasing the time needed for attackers to break through. Fenrir's F-Natt Dread Mine gas reaches maximum range slightly faster at 1.9 seconds, down from 2 seconds. Maestro's Evil Eye battery life increases to 9 seconds from 8. Thermite's Exothermic Charge damage rises to 220 hp, up from 200 hp, making it more lethal against defenders near reinforced surfaces. Sledge's Breaching Hammer swing time drops from 1 second to 0.8 seconds. Additionally, the M1014 shotgun base damage increases to 30 hp, and the SPAS-15 base damage increases to 26 hp, improving their close-quarters consistency.

Horus Lance and Operator Bug Fixes

A substantial portion of the patch addresses interactions with Noor's Horus Lance. Fixes ensure that Montagne's Le Roc Shield no longer auto-retracts or prevents device throwing when hit by the lance, and shield operators now take proper damage when pressing the embedded lance against a wall. Other fixes resolve issues where operators could remove the lance while holding secondary gadgets, cancel animations to instantly remove the lance from back shields, or continue moving when hit. Alibi's Prisma decoys and Ying's Candela deployment bugs are also resolved.

Map and Interface Fixes

Several map and UI errors are corrected in this update. The erroneous 'Remove Horus Lance to perform action' prompt no longer appears randomly. Attacker spawn locations on the House map now scale and align correctly on the tactical map. The Villa map no longer displays a blank screen on cameras at the Basement bomb site at round end, and the Consulate map fixes an incorrect compass location for the 2F Manager's Office. In the user interface, entering and exiting match replay no longer resets custom team colors to default, the C4 detonator displays correctly, and disconnected players can now successfully reconnect to ongoing sessions.

Why this patch matters

Patch Y11S3.1 is a targeted maintenance update that gives slight power bumps to several underperforming or rigid operators while cleaning up a massive backlog of gadget and map bugs.