Winter Update

Winter Update was an update for Halo Infinite's multiplayer and campaign. Functioning as an interim season, the Winter Update debuted on November 8, 2022, and ended on March 7, 2023 with the release of Season 03: Echoes Within.

Ancillary materials

 * Halo Waypoint Story & Intel: Story and Intel released on Halo Waypoint to expand upon the characters, events, and miscellaneous details of the season.
 * Winter Contention: A short story following NOBLE Team during the Defense of Concord.

Season content

 * Free 30-tier battle pass, based on Mark V(B) armor core
 * New multiplayer arena maps: Detachment, Argyle, and Empyrean
 * New multiplayer mode: Covert One Flag
 * New features
 * Campaign network co-operative play
 * Campaign mission replay
 * Forge open beta
 * New Forge canvases: Arid, Mires, Institute, Seafloor, Ecliptic, and Void
 * Match XP beta
 * 24 new Achievements inspired by Mission Replay and Co-op, worth 400 Gamerscore
 * New unlockables by achieving 100% completion on campaign
 * Custom Game Browser
 * Various quality of life improvements
 * Yoroi, Eaglestrike, and Rakshasa armor cores made free for all players
 * 10 Cadet armor coatings available for all armor cores
 * Red reticle for PC players
 * High Dynamic Range Toggle
 * Mute and report players during matches
 * December event: Winter Contingency II
 * January event: Joint Fire
 * February event: Noble Intention

XP Boosts

 * 5 XP Boosts

General Customization

 * 1 Nameplate: Brooch
 * 1 Armor Emblem: Brooch
 * 1 Weapon Emblem: Brooch
 * 1 Vehicle Emblem: Brooch
 * 2 Visors: Sardonic, Bullfrog

Mark V(B) Core

 * 1 Armor Core: Mark V[B]
 * 3 Helmets: Mark V, CQB, CQC
 * 1 Helmet Attachment: UA/Type C1
 * 4 Shoulder Pads: SAP/GND, SAP/CQC, SAP/SEC, SAP/SEC[K]
 * 3 Chests: TAC/Kukri Machete, UA/SIMA, UA/TAAP
 * 1 Knee Pad: UA/Type GR
 * 1 Utility: UA/TYPE CHOBHAM
 * 1 Armor Coating: Moa Assault

Events
Please see the respective event pages for their Event Passes.

Trivia

 * The Winter Update is also known as "Season 2001" on Halo Waypoint's service records, likely referencing the year of Halo: Combat Evolved's release.