Old debts sink deep. Today's silent tide breaks unheard.

Dear Endministrator:

Welcome to the new version, [Old Deep Water Dies, by Rising Tide It is Denied]!

▼// Maintenance Update & Compensation Details

■ Update & Maintenance Time

Asia Server: 2026/03/12 06:00 – 2026/03/12 12:00 (UTC+8)

Americas / Europe Server: 2026/03/11 17:00 – 2026/03/11 23:00 (UTC-5)

※ The server reopening time after maintenance may be earlier or later than scheduled. Please check the official announcement for details.

■ Maintenance Update & Bug Fix Compensation Details

· Update & Maintenance Compensation: [Oroberyl]×900

· Bug Fix Compensation: [Oroberyl]×900

· Distribution Period: After the update and maintenance – Before the next version update and maintenance

· Eligibility: Create a character before the update

· Note: Update & Maintenance Compensation and Bug Fix Compensation will be sent separately via in-game mail. The mails will expire at the start of the next version update and maintenance, so please claim them in time.

■ Update Notes

This update is mandatory. After the update is complete, you will need to re-download and reinstall the game client. Once the version update and maintenance begin, you can follow the in-game instructions to proceed with the update.

· iOS: Enter the App Store and tap [Update].

· Android: Enter the game and follow the pop-up prompts to complete the update.

· PlayStation®5: Go to the home screen, select [Arknights: Endfield], press the controller's [OPTIONS] button, select [Check for Update], and confirm the update.

· PC: After closing the game, restart the GRYPHLINK launcher and click [Update].

▼// New Version Content

■ New Stories

1. Main Missions

Available up to [Chapter II Process III: 'Twas One River That Gave Us Drink]

2. Exploration Missions

[OD Project: Sky King Flats II], [Call from the Blight]

3. Side Missions

[Seekers of the Lost Treasure I], [Seekers of the Lost Treasure II], [Seekers of the Lost Treasure III], [Patron of the Spring I], [Patron of the Spring II], [Patron of the Spring III]

■ New Operators

6★ operators: [Tangtang], [Rossi]

■ New Weapons

6★ weapons: [Brigand's Calling (Handcannon)], [Home Longing (Handcannon)], [Lupine Scarlet (Sword)], [Glorious Memory (Sword)]

■ New Enemies

[Highway Reaver], [Sweeping Wind], [Cloud Stalker], [Nimbus Razor], [Breaking Gust], [Hill Smasher], [Cloud Obliterator], etc.

■ New Area

[Wuling - Qingbo Stockade]

■ New Events

1. [Beginner's Chartered Tribute] Permanent Activity

· Availability: After [Old Deep Water Dies, by Rising Tide It is Denied] version release

· Event Details: Complete specified missions to acquire a total of [Chartered Headhunting Permit]×10.

※ You can simply claim these rewards from the event screen if you have already completed the related missions.

2. [River's Daughter] Chartered Headhunting

· Availability: After [Old Deep Water Dies, by Rising Tide It is Denied] version release – 2026/03/29 11:59 (server time)

· Headhunting Details: [River's Daughter] Chartered Headhunting features the Rate-UP 6★ operator [Tangtang]. 6★ operators that may appear in [River's Daughter] Chartered Headhunting include: Tangtang / Yvonne / Gilberta / Ember / Lifeng / Ardelia / Last Rite / Pogranichnik.

· During [River's Daughter] Chartered Headhunting, [Combat Drills] will also become available for trying out the 6★ operator [Tangtang]. Complete the specified stages with the preset team that includes the trial operator and go to the [Event Center] screen to claim the rewards.

3. [Gently Flows Qingbo] Sign-In Event

· Event Time: After [Old Deep Water Dies, by Rising Tide It is Denied] version release – 2026/03/29 11:59 (server time)

· Event Details: Sign in for a total of 7 days to earn rewards such as [Gently Flows Qingbo HH Permit]×5.

4. [Budding Anew Issue] Open

· Availability: Opens after [Old Deep Water Dies, by Rising Tide It is Denied] version update, and ends after 3 [Chartered Headhunting] banners (starting from [River's Daughter])

· Issue Details: [Budding Anew Issue] features the Rate-UP 6★ weapon [Brigand's Calling (Handcannon)]. 6★ weapons that may appear in [Budding Anew Issue] include: Brigand's Calling (Handcannon) / Clannibal (Handcannon) / Wedge (Handcannon) / Chivalric Virtues (Arts Unit) / Thermite Cutter (Sword) / Sundered Prince (Greatsword) / JET (Polearm).

5. [Quietly Flows the Spring] Guide Event

· Event Time: After [Old Deep Water Dies, by Rising Tide It is Denied] version release – 2026/04/02 04:00 (server time)

· Event Details: Complete missions to earn event rewards that include: [Oroberyls] and [Mark of Perseverance].

6. [Supply: Exploration Day] Supply Event

· Event Time: 2026/03/19 12:00 – 2026/04/02 04:00 (server time)

· Event Details: Complete supply tasks to earn event rewards that include: [Sticker: Cuisine of Exploration Day], [Oroberyls], [Mark of Perseverance], and [Advanced Cognitive Carrier].

7. [Sanity Discount] Cost Reduction Event

· Event Time: 2026/03/22 12:00 – 2026/03/29 04:00 (server time) &

Asia Server: 2026/04/10 12:00 – 2026/04/17 04:00 (server time)

Americas / Europe Server: 2026/04/10 12:00 (server time) – Before version update and maintenance

· Event Details: During the event, Sanity costs for claiming certain stage completion rewards are reduced. There is a daily limit on the number of times you can benefit from the Sanity cost reduction.

8. [Wolf Pearl] Chartered Headhunting

· Availability: 2026/03/29 12:00 (server time) – Before version update and maintenance

· Headhunting Details: [Wolf Pearl] Chartered Headhunting features the Rate-UP 6★ operator [Rossi]. 6★ operators that may appear in [Wolf Pearl] Chartered Headhunting include: Rossi / Tangtang / Yvonne / Ember / Lifeng / Ardelia / Last Rite / Pogranichnik.

· During [Wolf Pearl] Chartered Headhunting, [Combat Drills] will also become available for trying out the 6★ operator [Rossi]. Complete the specified stages with the preset team that includes the trial operator and go to the [Event Center] screen to claim the rewards.

9. [Pearl of the Pack] Sign-In Event

· Event Time: 2026/03/29 12:00 (server time) – Before version update and maintenance

· Event Details: Sign in for a total of 7 days to earn rewards such as [Pearl of the Pack HH Permit]×5.

10. [Scarlet Pearl Issue] Open

· Availability: Opens 2026/03/29 12:00 (server time); ends after 3 [Chartered Headhunting] banners (starting from [Wolf Pearl])

· Issue Details: [Scarlet Pearl Issue] features the Rate-UP 6★ weapon [Lupine Scarlet (Sword)]. 6★ weapons that may appear in [Scarlet Pearl Issue] include: Lupine Scarlet (Sword) / Rapid Ascent (Sword) / Eminent Repute (Sword) / Wedge (Handcannon) / Former Finery (Greatsword) / Detonation Unit (Arts Unit) / Valiant (Polearm).

11. [The Red Knight] Narrative Event

· Join a girl with a red-cape to look for a lost sample and her forgotten childhood innocence.

· Event Time: 2026/03/29 12:00 (server time) – Before version update and maintenance

· Event Details: Complete the side mission [The Red Knight] to acquire [Oroberyls], [Arms INSP Set], and other rewards.

※ After the event page is removed, you can still play this side mission from [Mission] and earn the rewards if you meet the participation requirements.

12. [Cleanse and Rinse] Fun & Games Event

· Event Time: 2026/03/29 12:00 – 2026/04/19 04:00 (server time)

· Event Details: Complete clean-up missions to earn event rewards that include: [Portrait: Expert Cleaner], [Oroberyls], [Mark of Perseverance], and [Advanced Progression Selection Crate Ⅰ].

13. [Survival Training] Challenge Event

· Event Time: 2026/04/09 12:00 – 2026/04/30 04:00 (server time)

· Event Details: Complete challenge stages to earn event rewards that include: [Portrait: Expert Survivor], [Oroberyls], [Mark of Perseverance], and [Advanced Progression Selection Crate Ⅰ].

■ Events & Gameplay Updates

1. [Umbral Monument] Challenge Gameplay Updated, [Searing Scars] Stages Available

· Availability:2026/03/26 12:00 (server time)

· Update Details: The [Searing Scars] series (including 3 stages) will be available in this [Umbral Monument] challenge gameplay. Complete all stage challenges to earn rewards that include: [Mark of Perseverance], [Advanced Cognitive Carrier], [Arms INSP Set], and [Protohedron].

[Monumental Etching: Scorch Mark] limited-time challenge event will be available at the same time.

· Event Time: 2026/03/26 12:00 – 2026/04/09 04:00 (server time)

· Event Details: During the event, complete corresponding challenges in [Umbral Monument] to claim the event rewards of [Monumental Etching: Scorch Mark].

2. [Delver of the Cryptic] Puzzle Event Updated, New Spatial Set Available

· New spatial set [Grotto Survey] opens: 2026/03/29 12:00 (server time)

· Event Details: Complete spatial set challenges to earn event rewards that include: [Oroberyls], [Mark of Perseverance], and [Protohedron].

3. [Etchspace Salvage] Content Update

· Update Time: After [Old Deep Water Dies, by Rising Tide It is Denied] version release

· Update Details: Brand new area [Aberrant Zone 4] is available. Added new operation metrics milestones. Reach the new milestones to earn rewards such as [Oroberyls], [Basic Headhunting Permits], and [Progression Materials].

※ For more event and gameplay info, stay tuned for our official announcements.

■ Acquisition Center Update

· [Protocol Pass: Dark Currents] is available. During the [Old Deep Water Dies, by Rising Tide It is Denied] version period, you can acquire various support items listed by the Arsenal Engineers in the [Protocol Pass]. Activating each seasonal Protocol Pass unlocks the [Basic Supply] tier by default. Level up the Pass to earn rewards such as [Basic HH Permit], [Oroberyls], [Exchange Crate-o-Surprise], and [Progression Materials].

· Added in [Acquisition Center: Bundles]: [Qingbo HH Bundle], [Wolf Pearl HH Bundle]. The purchase limits for [Protocol Flow Bundle] and [Value Arsenal Ticket Pack] are reset.

■ AIC Factory

· [WULING AIC II] is available. Added AIC Plans: [Forge Expansion II], [Hydro Mining], [Conduits], [Water Treatment], [Liquid Refining], [AF1 Armor Fragger], [Deluge Tower].

· Added facilities: [Hydro Mining Rig], [Conduit Inlet], [Conduit Outlet], [AF1 Armor Fragger], [Deluge Tower].

· Added mining spot [Cuprium Ore].

· Added some [Simulations] and related system blueprints.

· The Regional Development Level cap for the [Wuling] region is increased. The level caps for [Stock Redistribution], [Depot Node], and [Environment Monitoring] are increased. [AIC Steward] unlocks more upgrade options.

· The outpost level cap for [Sky King Flats Construction Site] is increased, and as the outpost level rises, new tradable goods will also become available.

· After upgrading the Stock Redistribution system of [Valley IV - Origin Lodespring] to Level 4, [Valley Multi-Line Engraving Kit] is added as a new staple good. Using the [Valley Multi-Line Engraving Kit] grants an essence with three customized stats.

■ Others

· Added content such as [NPC], [Engraved Medal], [Profile Theme], [Portrait], [Portrait Frame], [Consumable], [Material], [Sanity Meds], [Database Entry], [Clue Dossier], [Crafting Manual], and [Regional Aurylene Submission Phase]. They will gradually be unlocked as you progress further.

· Added new gear pieces to Gear Sets, including [Type 50 Yinglung Gear Pack], [MI Security Gear Pack], [Hot Work Gear Pack], [Frontiers Gear Pack], [Pulser Labs Gear Pack], [Bonekrusha Gear Pack], [Æthertech Gear Pack], [LYNX Gear Pack], [Swordmancer Gear Pack], and [Redeemer Gear Pack].

· Added voice lines for all operators when switching operators.

· Added facial reactions for all operators when taking damage.

· Added a new TP Point in [Wuling - Wuling City].

· Added a [Camera Distance] option in [Settings - Controls].

· Added a [Display Mode] option in [Settings - Performance & Graphics]

▼// Optimizations

■ AIC Factory

· Shared Facility Optimization: You can directly remove shared facilities left by others from the map screen. At the same time, the UI styles for shared ziplines and your own ziplines have been differentiated.

· Zipline Experience Optimization: When mounted on a zipline facility before moving, a mini-map will now be added to the top-left corner.

· Power Transmission Experience Optimization: The wire disconnection distance has been extended. The wire disconnection distance for Relay Towers has been increased from 90 meters to 100 meters, and the wire disconnection distance for Electric Pylons has been increased from 40 meters to 50 meters (the circuit connection distance remains unchanged). Also, the power transmission status will be maintained during cutscenes.

· Top View Mode Experience Optimizations:

○ Extended the maximum visible range in top view mode, making it easier to monitor large-scale production lines.

○ On PC, you can now set the [ESC] key to exit top view mode.

○ PC now supports moving multiple selected facilities simultaneously by holding down the left mouse button.

○ In controller mode, a [Move] option has been added to the menu that appears after selecting a facility. You can now directly press and hold the corresponding button to move the selected facility.

· Construction No Longer Restricted by Area: You can construct facilities anywhere on the map using your materials, without having to return to the [Core AIC Area].

· If a facility is restricted while being placed, the prompt text will more clearly explain the specific reason.

· Added a [Fluids for Spraying] option to [Quick Stash Filters]. When unchecked, using the [Quick Stash] feature of the Backpack will not move containers with sprayable liquids to the regional depot.

· Further optimized and expanded some guidance content related to the AIC Factory.

■ Combat System

· After the controlled operator performs a single dive attack, following up with a basic attack within a short time will not reset the basic attack sequence.

· Optimized the dodging and collision behavior for non-controlled operators during automatic actions.

· Enemy Attack Warning Optimization: Adjusted the attack warning effects for certain Advanced, Elite, Alpha, and Boss enemies to make them easier to distinguish and less likely to be obscured by other effects, allowing you to respond more promptly.

· Team Status Optimization in Certain Protocol Spaces: When challenging Protocol Spaces related to [Operator Progression], [Weapon Progression], [RE-Crisis], and [Crisis Drills], team members will enter combat with a separate status set to full HP and full Ultimate Energy. You can reset the challenge at any time during combat, and your team's status will reset as well. After leaving the Protocol Space, the team's status will automatically revert to what it was before entering. These statuses will not affect each other.

· Optimized the mobile combat experience: During any operator's ultimate animation, if you tap and hold where the basic attack button was, basic attack will continue after the animation ends.

· Optimized the additional attack and combat disengagement distance of the enemy [Quillbeast] in [Wuling - Hulu Cave].

■ Missions

· Optimized the story skip feature so certain dialogue can be skipped immediately when triggered.

· Optimized guidance for certain missions. Added a [New Area] tag to some missions that unlock new exploration areas.

· Optimized the mission flow for defeating quillbeasts in the main mission [Chapter Ⅱ Process Ⅰ: Arrival at Wuling].

· Optimized how the collectible [Piece of Scrap Paper] is obtained. Players who have completed the side mission [Invisible Glyphs: Investigation] but have not obtained this collectible can return to the area where it is located to find and collect it.

■ Events & Gameplay

· Optimized mission guidance and gameplay experience for certain stages in [Delver of the Cryptic].

· Optimized the screen transition logic when talking to the NPC in [Etchspace Salvage].

■ System

· Optimized the default sorting of essences when [Infusing Essence]. After optimization, essences will be displayed in order of their number of weapon adaptation stats.

· Optimized the default sorting of essences to be consumed during [Essence Etching]. After optimization, essences marked as Abandoned will be displayed first, while equipped and locked essences will be displayed later.

· Optimized the default sorting when selecting gear for artificing and gear to consume during [Gear Artificing].

· Optimized access to weapon skill details, which can now be viewed from the Weapon Potential and Essence screens.

· Optimized the display effect of certain markers on the map screen. The remaining quantity of rare gatherables will now be shown directly on the map. Additionally, new markers have been added for mineral beds in the current area that are either not connected to a mining rig or not being mined properly.

· Items not collected in time, including [Rare Plants], [Rare Minerals], and certain materials in [Protocol Spaces], will be automatically sent to the Mail Cache.

· Optimized the time operators wait in place after being summoned at the Dijiang Operator Contact Panel.

· Optimized the red dot notification logic for certain systems.

■ Scenes

· Optimized the presentation of certain scenes and camera shots in [Wuling] and [OMV Dijiang].

· Optimized the loading of certain NPCs in scenes.

· Optimized the interaction experience with Blight Cores in certain scenes.

■ Music and Sound Effects

· Optimized the performance of certain music and sound effects.

■ Others

· Optimized the display and interaction experience of certain screens, prompt texts, icons, and button layouts when using a controller to play the game.

· Optimized the performance of certain special effects, visuals, and story cutscenes.

· Optimized the experience of throwing Industrial Explosives continuously.

· Optimized the performance of teammates while planting crops in the Eco-Farm.

· Optimized teammate assistance mechanics for picking up dropped items, and expanded the effective trigger range.

▼// Adjustments

· Adjusted the skill description text for the 6★ operator [Yvonne]'s ultimate. This adjustment does not affect the skill's actual effects.

· Updated the name of the Chinese voice talent for the 4★ operator [Antal].

· Updated the name of the 4★ weapon [Contingent Measure] to [Prominent Edge].

· Adjusted the profile descriptions of certain weapons.

· Adjusted the text descriptions for certain tactical effects. This adjustment does not affect their actual effects.

· Adjusted descriptions of certain text in the [Operational Manual], [Pass Missions], [Missions], and [Database].

· Adjusted and optimized certain missions in the [Weekly Routine].

▼// Bug Fixes

■ Combat System

· Fixed an issue where the 6★ operator [Laevatain]'s dashing during the additional attack of her enhanced battle skill would cause abnormal Melting Flame stack counts.

· Fixed an issue where defeating enemies affected by Heat Infliction with the additional attack from 6★ operator [Laevatain]'s enhanced battle skill would cause abnormal Melting Flame stack counts.

· Fixed an issue where, under specific circumstances, casting a battle skill with the 6★ operator [Laevatain] just before her ultimate ended would cause her ultimate to end prematurely.

· Fixed an issue where the 6★ operator [Yvonne] could not perform a finisher on enemies under specific circumstances.

· Fixed an issue where the 6★ operator [Last Rite]'s combo skill could not freeze enemies under specific circumstances.

· Fixed an issue where 6★ operator [Ember]'s performance became abnormal when taking multi-hit attacks while casting her battle skill under specific circumstances.

· Fixed an issue where the 6★ operator [Ember] could lose her target during her third basic attack sequence under specific circumstances.

· Fixed an issue where the 5★ operator [Da Pan]'s ultimate and combo skills could lose their target under specific circumstances.

· Fixed an issue where the effect of 5★ operator [Avywenna]'s potential [Carrot and Sharp Stick] did not match its description. After the fix, the actual effect is now consistent with the potential description.

· Fixed an issue where the potential [Doubling Down] of the 5★ operator [Avywenna] was incorrectly activated under certain conditions. After the fix, it now functions consistently with the potential's description.

· Fixed an issue where the enemy [Rhodagn] would abnormally stop moving in combat under certain circumstances.

· Fixed an issue with abnormal item drops from the enemy [Elite Raider].

· Fixed an issue where the enemy [Tidewalker]'s related stats and skill effects were abnormal.

· Fixed an issue where damage numbers displayed abnormally when the [Swordmancer] gear set effect was triggered.

· Fixed an issue where the controlled operator could not move after exiting [Protocol Space] following a failed attempt under certain circumstances.

· Fixed an issue where effects applied by an operator on other operators were not properly cleared when the operator left the team under certain conditions.

· Fixed an issue where operators suffering Combustion would take abnormal Heat DMG under certain circumstances.

· Fixed the issue where some enemies displayed abnormal special effects when taking damage.

· Fixed an issue where teammates were unable to use skills under specific circumstances.

■ Missions

· Fixed an issue where the guidance display for some [Missions] and [Protocol Spaces] was abnormal under specific circumstances.

· Fixed an issue where certain actions caused abnormal visual display during the main mission [Process: Cold Start].

· Fixed an issue where certain actions prevented progression of the main mission [Chapter Ⅰ Process IV: Building an Outpost].

· Fixed an issue where certain actions prevented the waterwheel from being reactivated in the main mission [Chapter Ⅱ Process Ⅰ: Destination Wuling].

· Fixed an issue where the objective [Search for a way out of the grove] in the main mission [Chapter II Process I: Arrival at Wuling] could not be completed properly under specific circumstances.

· Fixed an issue where certain actions could cause abnormal tracking in the side mission [Ode to the Oak I].

· Fixed an issue where the side mission [Deep Management Post Rescue] could not continue after completing the objective [Blast away the obstacle] under specific conditions.

· Fixed an issue where the commission [Daily: Friend of Bots] displayed an incorrect status under specific circumstances.

■ AIC Factory

· Fixed an issue where the pre-connection statuses of [Xiranite Relays] displayed incorrectly under specific circumstances.

· Fixed an issue where tracking devices displayed abnormally under specific circumstances.

■ System

· Fixed an issue where some screens in [Protocol Space], [Friends], [Path of Glory], [Settings], [Production Formulas], and [Operational Manual] displayed abnormally under specific circumstances.

· Fixed an issue where submission progress displayed abnormally when submitting Aurylene in the [Wuling] region after exceeding the submission limit. This issue did not affect the actual amount of Aurylene submitted. After the fix, any Aurylene exceeding the submission limit will be retained instead of being submitted.

· Fixed an issue where entering certain special characters in a friend's remark name allowed the character limit to be exceeded.

· Fixed an issue where players could not properly perform Production Assist in friends' [Guest Terminal - Growth Chamber] under certain circumstances.

· Fixed an issue where map markers were not automatically displayed on the correct layer under certain circumstances.

· Fixed an issue where some text displayed incorrectly on the Protocol Space Final Rewards screen.

· Fixed an issue where the mini-map displayed abnormally under specific circumstances.

· Fixed an issue where custom marker tags could not be deleted after being created at specific locations.

· Fixed an issue where clicking the [Track] button in the mission screen did not display the mission's correct map location under specific circumstances.

· Fixed an issue where map markers displayed abnormally under specific circumstances.

■ Others

· Fixed an issue where, under specific circumstances, certain operators' voice lines, animations, models, special effects, facial expressions, etc., displayed abnormally.

· Fixed an issue where the special effects and models of certain weapons would display incorrectly under specific circumstances.

· Fixed an issue where the map's fog did not dissipate properly under certain conditions.

· Fixed an issue where certain puzzle mechanics in scenes could malfunction under specific conditions.

· Fixed an issue where some storage crates in scenes could still not be opened after defeating enemies under certain circumstances.

· Fixed an issue where some devices running Android 14 could experience unexpected game crashes when using certain in-game features.

· Fixed an issue where Android devices equipped with Dimensity 9300/9400/9500 chips could experience flickering black screens in certain combat scenarios.

· Fixed an issue where some Android devices running specific system versions experienced stuttering in certain scenes in the [Wuling] area.

· Fixed an issue where text displayed incorrectly in some languages.

· Fixed an issue where item information displayed incorrectly in the [Supply Crate] when playing on PlayStation® devices.

· Fixed an issue where the filter feature in Baker was not working properly.

· Fixed an issue where certain actions could improperly reveal snapshots of currently locked operators.