Season

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Seasons are a feature of Halo: Reach, Halo 5: Guardians, Halo Wars 2, Halo: The Master Chief Collection, and Halo Infinite, primarily focused on their games' respective competitive modes. Seasons have typically accompanied new ranked settings, a handful of title updates and patches and accompanied the release of DLC. Leaderboards on Halo Waypoint are additionally organised by season, with a new season seeing the reset of leaderboards and new matchmaking playlists.

Seasons were introduced to Halo: The Master Chief Collection following the 2019 release of Halo: Reach and the collection for PC, serving as the game's ongoing post-launch support with each new season bringing new cosmetic customization unlocks and gameplay improvements.

Halo: Reach

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Halo 5: Guardians

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Halo Wars 2

Seasons are present in Halo Wars 2. During the first year of the game's life cycle, seasons were released roughly once a month to coincide with downloadable content releases or other events such as the launch of Xbox One X. Since then, the output of Seasons has slowed to as little as one per-year. Seasons are a fixture of the game's ranked multiplayer, used for leaderboard and rank resets. Season refreshes are typically accompanied by a Title Update, and may have several mid-season patches.

For a full list of seasons, click show below;

Halo: The Master Chief Collection

Seasons were first introduced to Halo: The Master Chief Collection with the addition of Halo: Reach to the collection in December 2019. Players can earn Spartan Points and spend them in any Season of their choice to claim its rewards. Initially, 343 Industries intended to support the game with seasonal content roughly every two months, planning to give the game ten total seasons. Later in Halo: The Master Chief Collection's lifespan, it was announced that Season 8 will be its last update on a seasonal model, however the game will still receive more updates that are smaller in scope, with additional features, fixes and content, which are going to be released in 2022 and 2023 as they become ready.

List of Seasons
Season	Description	Start Date
Series 1: Noble	The first season implemented within The Master Chief Collection. Titled "Noble" after NOBLE Team, this season focuses on Halo: Reach, including the game's armor customization system.	December 3, 2019
Series 2: Spark	This season was launched following the release of Halo 3 for PC. Titled after 343 Guilty Spark, this season focuses on Halo: Combat Evolved, adding vehicle and weapon skins, visor colors, and nameplates.	July 14, 2020
Series 3: Recon	The third season was launched with the release of Halo 3: ODST for PC. Titled after Halo 3: ODST's original title (Halo 3: Recon), this season focuses on Halo 3 and Halo 3: ODST, adding weapon skins and visor colors to Halo 3, while reintroducing ODST's playable Firefight characters, and also adding nameplates.	September 21, 2020
Series 4: Reclaimer	Season 4 was launched with the release of Halo 4 for PC. Titled after the Forerunner term for humanity reclaiming the Mantle, this season brings additional cosmetic customization options to Halo 3 and Halo 4, and nameplates.	November 16, 2020
Series 5: Anvil	Titled after both the Anvil Initiative and ANVIL Station, Season 5 added the AKIS and Mariner helmets into Halo: Reach, years after being teased in promotional material for the Defiant Map Pack in 2011, alongside nameplates and additional cosmetic customization options to Halo: Reach and Halo 3, including 12 armors from the cancelled Halo Online for the latter.	January 27, 2021
Series 6: Raven	Season 6 succeeded Season 5, in April 2021. Named after the ODST team Fireteam Raven, this season included new customization options for Halo 3, including animated visors and nameplates, back accessories, and new armor permutations from Halo: Online, as well as the four ODST armors used by Fireteam Raven in the namesake game. It also added a new map for Halo 3, Waterfall.	April 7, 2021
Series 7: Elite	Season 7 succeeded Season 6, in June 2021. Named after the human designation for the Sangheili, the season included seven new armor permutations from Halo Online for the Elites as well as skins for the Type-1 energy sword for Halo 3, alongside vehicle skins and graphical updates for Halo: Combat Evolved, and the Champions Bundle content, weapon skins, armor effects, and the KEYSTONE helmet for Halo 4. It also added a new map for Halo 3, Edge.	June 23, 2021
Series 8: Mythic	Season 8 succeeded Season 7, in October 2021. It included new non-canon armors, a new map, new collectibles, and Custom Game Browser support for Halo: Combat Evolved and Halo 3.	October 13, 2021
Series 9	Series 9 was the first Series featuring the new non-seasonal model. It included five new non-canon armor sets and weapons skins for Halo 2: Anniversary, the addition of Poses and in-game subtitles in multiple titles, and other QoL and gameplay content for Halo: Combat Evolved, Halo: Reach, and Halo 4. It also features the addition of Theater Mode for both Halo 4's Campaign and Spartan Ops.	August 31, 2022

Halo Infinite

Seasonal content for Halo Infinite multiplayer will include armor permutations. Four seasons have been mentioned for the game, though due to its pre-release nature these aspects are subject to change. Like The Master Chief Collection, seasons are expected to last and release every 2–3 months. Unlike The Master Chief Collection, Halo Infinite's Seasonal progress will be based on earning XP via the completion of daily and weekly challenges or spending credits; each unlock across the 100-tier Pass will require the same amount of XP.

List of Seasons
Season	Description	Start Date
Season 00: For Our Tomorrow	The season used for Halo Infinite flighting.	July 29, 2021
Season 01: Heroes of Reach	The first season of Halo Infinite. It saw the addition of the Mark VII, Mark V(B), and Yoroi armor cores, and the Attrition gamemode.	November 15, 2021
Season 02: Lone Wolves	The second season of Halo Infinite. It saw the addition of the Rakshasa and Eaglestrike armor cores, the cross-core visors, and King of the Hill, Last Spartan Standing, and Land Grab gamemodes. It also featured Infinite's first narrative events.	May 3, 2022
Winter Update	An interim season for Halo Infinite. It saw the addition of Mission Replay and Campaign Network Co-op, Forge and Custom Grame Browser as QoL improvements, and the inclusion of a new gamemode: Covert One Flag. It also included new armor pieces for the Mark V(B) armor core.	November 8, 2022
Season 03: Echoes Within	The third season of Halo Infinite. It brings a new gamemode (Escalation), and two new sandbox items: the M392 Bandit and the Shroud Screen. It also includes the Mirage IIC and Chimera armor cores, and two narrative events.	March 7, 2023
Season 04: Infection	The fourth season of Halo Infinite. It brings a new gamemode (Infection), Career Rank progress, and two new sandbox items: the Threat Seeker and the Quantum Translocator. In addition, it includes the HAZMAT armor core, and it brings new armor pieces to the Yoroi armor core.	June 20, 2023
Season 05: Reckoning	The fifth season of Halo Infinite. It brings two new gamesmodes (Extraction and Firefight), cross-core helmets, and two new sandbox items: the M392 Bandit EVO and the Repair Field. In adittion, it brings new armor pieces for the Mark V[B], Mark VII, and Rakshasa armor cores, and three new armor kits: the Infinite Mark VI and CE Mark V kits for the Mark VII, and the Rusalka kit for the Mark V[B].	October 17, 2023