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How creative can you get with your first free checklist?Create a free accountSeasons, Updates and Patch NotesBy John Rose, Morgan Park, Nicholas Castellano, +2.3k moreUpdated: Nov 12, 2019 2:13am UTC

Rainbow Six: Siege was released on December 1, 2015. Since that date, it is had many updates, changes and new features added.

This page will catalogue all major Rainbow Six: Siege Seasons and Mid-season Reinforcements, such as updates and patch notes. Minor, or outdated, patch notes may not be listed. Click through for additional details to see how Rainbow Six: Siege has changed and expanded over the years since its release.

Ubisoft names each Season within a named year since release, for example the very first season, Operation Black Ice, was named Y1S1 (Year 1, Season 1). There have been 4 seasons each year since release.

Version/Name	Date	Major Updates
Y4S4 Operation Shifting Tides (Y4S4.0)	December 2019	New operators added (Kali and Wamai), map rework (Theme Park), QoL updates
Y4S3 Operation Ember Rise (Y4S3.0)	September 2019	New operators added (Amaru and Goyo), map rework (Kanal), Battle Passes, new playlist (Unranked)
Y4S2.3	July 22, 2019 (PC); July 24, 2019 (Console)	Balancing, bug fixes, anti-griefing update
Y4S2.2	July 9, 2019 (PC); July 16, 2019 (Console)	AFK kicking update, bug fixes, QOL updates
Y4S2.1	June 21, 2019 (PC); June 27, 2019 (Console)	Bug fixes, player comfort update
Y4S2 Operation Phantom Sight (Y4S2.0)	June 11, 2019	New operators added (Warden and Nokk), Map rework (Kafe Dostoyevsky), Reverse Friendly Fire
Y4S1.3	April 16, 2019 (PC);April 17, 2019 (Console)	Balancing, bug fixes
Y4S1.2	April 4, 2019 (PC);Not released on console	Bug fixes
Y4S1.1	March 19, 2019 (PC);Not released on console	Bug fixes
Y4S1 Operation Burnt Horizon	March 6, 2019	New operators added (Mozzie and Gridlock), new map added (Outback), Newcomer playlist
Y3S4.2	February 5, 2019 (PC);February 6, 2019 (Console)	Balancing, bug fixes
Y3S4.1	December 17, 218 (PC);December 18, 2018 (Console)	User Experience, balancing, bug fixes
Y3S4 Operation Wind Bastion	December 4, 2018	New operators added (Kaid and Nomad), new map added (Fortress)
Y3S3.2	October 29, 2018 (PC);October 31 (Console)	Balancing, bug fixes
Y3S3.1	September 18, 2018 (PC);September 19, 2018 (Console)	Bug fixes, Team Kill Ban adjustment
Y3S3 Operation Grim Sky	September 4, 2018	New operators added (Maverick and Clash), Map rework/redesign (Hereford Base), map buff (Consulate)
Y3S2.2	July 23, 2018 (PC);July 24, 2018 (Console)	Advanced Drone Deployment, balancing, bug fixes
Y3S2.1	June 20, 2018 (PC);June 28, 2018 (PS4);June 29, 2018 (Xbox One)	Bug fixes
Y3S2 Operation Para Bellum	June 7, 2018	New operators added (Maestro and Alibi), new map added (Villa), map buff (Clubhouse), balancing changes
Y3S1.2	May 1, 2018 (PC);May 2, 2018 (Console)	Balancing, bug fixes
Y3S1.1	March 20 (PC);March 22, 2018 (Console)	Bug fixes
Y3S1 Operation Chimera	March 6, 2018	New event (Outbreak), new operators added (Lion and Finka)
Y2S4.2 Mid-Season Reinforcements	January 23, 2018 (PC);January 24, 2018 (Consoles)	Balancing, operator changes, bug fixes
Y2S4.1	December 14, 2017	Bug fixes
Y2S4 Operation White Noise	December 5, 2017	New operators added (Vigil, Dokkaebi and Zofia), new map added (Tower), gameplay tweaks (pistol and grenades)
Y2S3.2 Mid-Season Reinforcements	October 27, 2017	Operator reworks (Kapkan, Blitz and Ela), network improvements, bug fixes
Y2S3.1	September 19, 2017	Bug fixes
Y2S3 Operation Blood Orchid	September 5, 2017	New operators (Ying, Lesion and Ela), new map (Theme Park), final Operation Health improvements (see Operation Health for more information)
Y2S2.2	August 9 ,2017	Added Dedicated Server support, bug fixes
Y2S2.0/1 Operation Health	June 7, 2017 (PC);June 20, 2017 (Console)	Operation Health launch; Matchmaking improvements, hitbox rework, operator tweaks, bug fixes
Y2S1.3	April 19, 2017	Bug fixes
Y2S1.2 Mid-Season Reinforcements	March 15, 2017	Operator rework (Glaz – added thermal scope), bug fixes
Y2S1.1	February 21, 2017	Bug fixes
Y2S1 Operation Velvet Shell	February 7, 2017	New operators added (Jackal and Mira), new map added (Coastline)
Y1S4.3	January 11, 2017	Bug fixes
Y1S4.2 Mid-Season Reinforcements	December 15, 2016	Operator rework (Tachanka – shield attached to LMG), Bartlett University added to multiplayer (previously only available in Situations), operator tweaks, balancing
Y1S4.1	November 22, 2016	Vote-Kick system changes, bug fixes
Y1S4 Operation Red Crow	November 17, 2016	New operators added (Hibana and Echo), new map added (Skyscraper), balancing
Y1S3.3	October 12, 2016 (PC); October 25, 2016 (Console)	Network improvements, Anti-Bullying System added, bug fixes
Y1S3.2 Mid-Season Reinforcements	September 13, 2016	Operator reworks (Twitch & Doc buffs, Blackbeard nerf), Impact Grenades, Muzzle Brake and Extended Barrel added
Y1S3.1	August 25, 2016	Pulse and Shotgun balancing, bug fixes
Y1S3 Operation Skull Rain	August 2, 2016	New operators added (Caveira and Capitao), new map added (Favela), anti-cheating system added
Y1S2.4	July 13, 2016	Balancing, bug fixes, team-killing punishments expanded
Y1S2.3	June 21, 2016	Operator tweaks (Kapkan and Mute buffs), balancing, bug fixes, team-killing punishments added
Y1S2.2	May 31, 2016 (PC);June 1, 2016	Balancing, bug fixes
Y1S2.1	May 11, 2016 (PC);May 17, 2016 (Console)	Bug fixes
Y1S2 Operation Dust Line	May 10, 2016	New operators added (Blackbeard and Valkyrie), new map added (Border), massive balancing changes/operator tweaks
Y1S1.3	March 30, 2016 (PC);April 5, 2016 (Console)	Balancing, bug fixes
Y1S1.2	March 1, 2016 (PC);March 3, 2016 (Console)	Anti-cheat countermeasures added (Report Player, kill-cam added to Ranked), spawn-killing countermeasures (spawn points adjusted), balancing, bug fixes
Y1S1.1	February 11, 2016 (PC);February 17, 2016 (Console)	Balancing, bug fixes
Y1S1 Operation Black Ice	February 2, 2016	First new operators added (Frost and Buck), first new map added (Yatch), balancing
1.3	January 13, 2016 (PC);January 21, 2016 (Console)	Hit reg improvements, anti-cheat improvement, balancing, bug fixes
1.2	January 7, 2016 (PC);January 14, 2016 (Console)	Bug fixes
1.1	December 16, 2015	Ultra-HD Textures released for PC, team-killing countermeasures added (auto-kick), balancing, bug fixes
1.0 Rainbow Six: Siege	December 1, 2016	Rainbow Six: Siege Released