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[Dreamscape of Wind and Snow] Event Schedule & Update Notes — Every Event, Date & Reward (Sept–Oct 2026)

The [Dreamscape of Wind and Snow] version of Arknights: Endfield is now live — the update landed September 1 on Americas/Europe and September 2 on Asia — and every event and challenge-mode window is confirmed. This guide digests the official [Dreamscape of Wind and Snow] Version Update Notes (Sept. 2, 2026): what was added, every dated event with its rewards, the headhunting timeline through October, and the system changes that matter. For pull planning, see our [Winter Hunt] banner guide; for the RE-Factor rules announced ahead of launch, see the version preview.

Maintenance ran Sept. 2, 2026, 06:00–12:00 (UTC+8) on Asia and Sept. 1, 2026, 17:00–23:00 (UTC-5) on Americas/Europe. The update is mandatory and requires re-downloading the game client (PC via GRYPHLINK, PS5 via Check for Update, iOS/Android via store). Compensation is two separate mails of Oroberyl ×900 each — update and bug fixes, 1,800 Oroberyl total — for accounts with a character created before the update. Both expire at the next version's maintenance, so claim them once the Mail feature unlocks.

New content: Wuling areas, Typhoeus & Purrchena, new weapons

New areas: [Wuling - Snowy Forest] and [Wuling - Suiming] open up the region, the Wuling Regional Development level cap rises, and the [Xiranflow Cloudseeder Station] outpost cap in [Wuling - Yinglung Pass] increases too.
New stories: three Exploration Missions — [OD Project: Cloudseeder STN III], [Cliffbottom Archery Range] and [Bell of Recollection] — plus Side Missions [A Winter Dream Fogged Deep in the Woods] (Typhoeus's narrative event), [Endeavor of a Lifetime] and [Illumination of Fate].
New operators: 6★ Typhoeus debuts as the [Winter Hunt] rate-up, and 5★ Purrchena arrives as a free giveaway via [Purry Big Feline! RAWR!]. Neither is in our character database yet — we refresh it from official data, which lags new releases.
New weapons: 6★ Arts Units [Umbra of Frigid Eventide] (the [Deep Cold Issue] rate-up) and [Suffering's End], plus the 5★ Sword [Dessert Moment], which the Purrchena giveaway hands out.
New enemies: [Woodcraft Slug], [Woodcraft Wanderer] and [Gloomwald's Rage].
New gear & content: gear set [Deep Rampart] debuts, with new pieces added to [AIC Fieldwork], [Tide Surge] and [Eternal Xiranite]; new content types ([Operator Guide], [Energy Alluvium], [Crisis Fragment], [Database Entry] and more) unlock gradually as you progress.
Protocol Pass & bundles: [Protocol Pass: Gloomwald] runs all version (Basic Supply tier unlocked by default; level-ups grant [Basic HH Permit], Oroberyls, [Exchange Crate-o-Surprise] and progression materials). The Acquisition Center adds [Protocol Flow Bundle] and [Winter Hunt HH Bundle], and the [Value Arsenal Ticket Pack] purchase limit resets.

September–October event calendar: dates & rewards

All times are server time, quoted from the official update notes:

[Snow Over Deep Woods] Guide Event — version release to Sept. 30, 12:00: missions in the [Snowy Forest] area of Wuling for Oroberyl ×1,200 and [Mark of Perseverance].
[A Winter Dream Fogged Deep in the Woods] (Typhoeus narrative) — all version: clear the Side Mission for Oroberyl ×600 and an [Elementary Cognitive Carrier]. After the event page is removed, the mission stays playable from [Mission] with its rewards if you meet the requirements.
[Trial of the Bow] Challenge Event — Sept. 9, 12:00 to next maintenance: clear Simulations at [Typhoeus's Archery Range] and event Trial Missions for Oroberyl ×1,200, [Advanced Cognitive Carrier], [Mark of Perseverance] and [Advanced Progression Selection Crate I]. Afterwards the Archery Range stays playable with first-clear Simulation rewards, but Trial Missions and their rewards end.
[AIC Support: Chubby Lung Attacks] — Sept. 16, 12:00 – Sept. 30, 16:00 (exchange until Oct. 7, 04:00): produce support goods and submit them at the outpost for bonus [Fruits of Altruism Certs], exchangeable for Oroberyl ×1,600, [Portrait: Chubby Lung Attacks], [Mark of Perseverance], [Advanced Progression Selection Crate I] and [Advanced Cognitive Carrier].
[Sanity Supply] — two daily-mission rounds granting [Sanity Usage Permit] and [Emergency Sanity Booster]: Sept. 17, 04:00 – Sept. 24, 04:00, then Oct. 8 – Oct. 15, 04:00 (Asia; Oct. 8 – Oct. 14, 17:00 on Americas/Europe).
[Purry Big Feline! RAWR!] Giveaway — Sept. 24, 12:00 to next maintenance: log in and play various modes to claim 5★ Purrchena, [Purrchena's Token] ×5 and [Dessert Moment (Sword)] ×6.
[Echoing Bell of an Old City] Guide Event — Sept. 24, 12:00 to next maintenance: missions in [Suiming] of Wuling for Oroberyl ×1,200 and [Mark of Perseverance].
[Ridgeline Flows of Autumn] Sign-In — Oct. 1, 12:00 onward: 7 days of sign-ins total for Oroberyl ×1,500, [Portrait: Go Forth and Run] and the ["Rolling Chubby Lung" Energy Drink].
[Runners' Steeplechase] Fun & Games — Oct. 1, 12:00 onward: race with 3★ units and collect balloons for Runner's Milestones — Oroberyl ×1,200, [Portrait Frame: Champion Runner] and the ["Rolling Chubby Lung" Energy Drink].
[OrbiPom! MERGE!] Web Event — Oct. 1, 12:00 onward: merge OrbiPoms on the web event page and complete missions for Oroberyl ×300 and T-Creds.

Headhunting & challenge-mode timeline

Three headhunting systems overlap this version and two challenge modes get fresh seasons; full pools, guarantees and pull analysis are in our [Winter Hunt] banner guide. The timeline in one place:

[Winter Hunt] Chartered Headhunting — version release to Sept. 30, 11:59: 6★ Typhoeus rate-up, 6★ pool Typhoeus / Liino / Arcane / Ember / Lifeng / Ardelia / Last Rite / Pogranichnik. The linked [Combat Drills] trial (Oroberyl ×100, an [Arsenal Defense Crate] — a Fully Artificed Level 60 gear set for the trial operator — and [Mark of Perseverance]) runs alongside, and up to ×5 [Fletched Irontip HH Permit] are exchangeable at a discount in the AIC Quota Exchange.
[Deep Cold Issue] Arsenal Issue (LTO) — opens with the version, ends after 3 Chartered Headhunting banners from [Winter Hunt]: 6★ Arts Unit Umbra of Frigid Eventide rate-up, 6★ pool Umbra of Frigid Eventide / Exemplar (Greatsword) / Clannibal (Handcannon) / Valiant (Polearm) / Oblivion (Arts Unit) / Detonation Unit (Arts Unit) / Rapid Ascent (Sword). New to LTOs? See our LTO explainer.
RE-Factor debut — Sept. 24, 12:00 to next maintenance: [Resplendent Spectrum] RE-Factor Headhunting #1 rates up 6★ Yvonne (pool: Yvonne / Ember / Lifeng / Ardelia / Last Rite / Pogranichnik), and [Tag Artist Issue] RE-Factor Issue #1 features 6★ Artzy Tyrannical (Handcannon). Rules differ from Chartered banners — see the RE-Factor preview and our Yvonne build guide. Note: this update also makes [Chartered HH Permit] usable in RE-Factor Headhunting, with its item description updated accordingly.
[Echoes of War] season rollover — [Season of Virtuality] (3 cycles × 3 stages, 3 new stages) runs until Sept. 24, 11:59; [Season of Illusion] starts Sept. 24, 12:00 with the same structure. Clearing all new stages on Normal in each season pays Oroberyl ×300.
[Umbral Monument] — [Marked by Dark Shadows] — Oct. 5, 12:00: a 4-stage series rewarding [Mark of Perseverance], [Advanced Cognitive Carrier], [Arms INSP Set] and [Protohedron]. The [Monumental Etching: Shadow Marked] limited event runs Oct. 5, 12:00 – Oct. 19, 04:00 for Oroberyl ×1,200 and [Advanced Progression Selection Crate I].

[Winter Hunt] and RE-Factor #1 overlap from Sept. 24 to Sept. 30 with separate guarantee systems, so plan your split in advance — our banner schedule, pity tracker and headhunting guide keep both straight.

System, factory & quality-of-life changes

[Progression Overview] (Operators screen): all owned, not-owned and upcoming operators and weapons in one place, with materials needed per goal and quantities held; upcoming operators' recommended-weapon essences can be previewed and added straight to the Essence Wishlist.
AIC Factory: a [Continue Placing] toggle keeps placing facilities, ornamentals and plots without exiting Construction Status while you hold the materials.
Reception Room: [Quick Add] auto-fills every fillable clue; [Give Away All Duplicates] gifts duplicate clues to friends in one tap when you hold more than 2 of the same.
Talosite Exchange: refreshed with [Personal Device], [Ornamental], [Camera Pose], [Vinyl] and more.
Story & UI: a [Hide UI] toggle hides prompts and dialogue text during story (works with Auto-Play); clear time displays on some stage results; reminders appear for modes you have not played in a while; profile themes show more fully in the Friends List.
Gifting & medals: max-Trust operators can still receive gifts for gifting tasks; engraved-medal category tabs auto-switch while scrolling the Medal Album.
Visuals: richer snow — snowflake adhesion and accumulation on characters, some factory facilities and ornamentals — plus improved character visuals in rain.
Text-only fixes (no effect changes): 6★ Rossi's Critical Rate boost and 4★ Fluorite's Slow descriptions, plus wording passes on several 6★/5★ weapon skills; voice performance optimized for 6★ operators Arcane and Liino.
Notable bug fixes: Arcane's [Array Arcana: INT] battle skill no longer returns abnormal SP or damage under certain inputs; Liino no longer interrupts enemy charge states an abnormal number of times; combo skills failing under certain control inputs are fixed; tactical items restoring Ultimate Energy are no longer consumed abnormally in certain stages (an issue carried over from [Homecoming]).

For everything else around this version — full RE-Factor rules, factory and combat changes, roadmap — browse the news archive or start from the guides index.

Frequently asked questions

When did [Dreamscape of Wind and Snow] release?
Maintenance ran Sept. 1–2, 2026 (Sept. 1, 17:00–23:00 UTC-5 on Americas/Europe; Sept. 2, 06:00–12:00 UTC+8 on Asia). The update is mandatory and requires re-downloading the client.

What compensation do I get?
Two separate mails of Oroberyl ×900 each — update and bug fixes, 1,800 total — for accounts with a character created before the update. They expire at the next version's maintenance.

When does [Winter Hunt] end, and does it overlap RE-Factor?
[Winter Hunt] ends Sept. 30, 2026, 11:59 (server time) — an explicit end date rather than "next version update." RE-Factor #1 (Yvonne) opens Sept. 24, 12:00, so the two overlap for almost a week with separately tracked guarantees.

How do I get the new 5★ operator Purrchena?
She is a free giveaway from [Purry Big Feline! RAWR!] (Sept. 24, 12:00 onward): log in and participate in game modes to claim Purrchena, [Purrchena's Token] ×5 and the 5★ Sword [Dessert Moment] ×6.

What still works after the events end?
The [A Winter Dream Fogged Deep in the Woods] Side Mission remains playable from [Mission] with its rewards, and Typhoeus's Archery Range keeps paying first-clear Simulation rewards — but [Trial of the Bow] Trial Missions end with the event, and the Chubby Lung Attacks exchange closes Oct. 7, 04:00.

Sources: official announcements from endfield.gryphline.com — [Dreamscape of Wind and Snow] Version Update Notes (Sept. 2, 2026), Version Pre-Download & Update Notice (Aug. 31, 2026), [Winter Hunt] Chartered Headhunting (Sept. 1, 2026), [Deep Cold Issue] LTO Details (Sept. 1, 2026) and [Dreamscape of Wind and Snow] Version DEV Comm (Aug. 22, 2026). All event windows, reward amounts, pools and rules are quoted from those notices; times are server time. Operator and weapon data on this site is refreshed from official sources and may lag new releases.