Arknights: Endfield is gearing up for its biggest content drop yet with Version 1.3, titled Sketches of Lost Heirlooms. Set to launch on June 5, 2026, this update dives deeper into the mysteries of Wuling and beyond, introducing a brand-new explorable region packed with ancient ruins, two powerful 6-star operators, and the highly anticipated arrival of Contingency Contract-style challenges. Players can also look forward to major quality-of-life upgrades that streamline base management and combat flow.
New Region: Sword Vault Dale
Version 1.3 expands the map with Sword Vault Dale, a resurfaced sub-region once lost to the Erosion Tide. This foggy, atmospheric area is filled with remnants of ancient Yan technology and echoes the Sword Pillars of the Sword Sect. Expect new exploration mechanics, hidden secrets, and a main story mission that ties into the core chapter Sketches of Lost Heirlooms. The Administrator and their team head north to the Forbidden Zone to stop the Great Rift from threatening Wuling, teaming up with operators across regions for fresh narrative beats.
New enemies like the Rockhowlers add chaotic flair. These monkey-like packs set traps with banana peels and coordinate with Armed Manglers, while giant boss variants smash terrain, swing stone pillars, and unleash stunning roars. The region uses advanced volumetric clouds for an immersive, forgotten-realm vibe while keeping performance smooth across platforms.
New Operators and Banners
Two new 6-star operators headline the update, each with unique playstyles and story ties.
Mi Fu (Phase 1 Banner: Fists of No Regrets)
A Physical Guard and patrol captain from Wuling City with roots in Qingpachai. She joins the Administrator to investigate the disappearance of the Three Absolutes. Her kit revolves around a signature three-stage skill chain called Qingpa Three Forms: pull enemies with chains, unleash punch flurries, and finish with massive heavy strikes that ignore standard damage types under the right conditions. Her ultimate launches foes into the air for seamless combos. Perfect for players who love aggressive, close-range brawling.
Camille (Phase 2 Banner: Expunger of Sin)
A Heat-attribute Vanguard and vampire guardian of Seshka. Camille hunts an anonymous blood sample tied to a past incident while confronting his own history. He excels at debuffs and skill gauge recovery, firing heat from his wings to apply Frailty, then chaining into burning-wing states for extra Heat damage. His ultimate delivers AoE Heat bursts and enables nonstop combos without gauge drain. Heat teams are poised to gain a strong new enabler.
Phase 1 runs from June 5 to June 26 (server-dependent times apply), featuring Mi Fu alongside off-rate limited 6-stars Zhuang Fangyi and Rossi. Phase 2 brings Camille with returning rate-ups. Matching weapon banners include the 6-star Greatsword Amaranthine Tassel and Polearm Blessing of Lustrous Carmine.
Endgame and Combat Additions
Endgame fans finally get the depth they have been waiting for. Contingency Contract arrives as a high-difficulty challenge mode where players stack modifiers to ramp up enemy power, limit stats, or tweak rules for bigger rewards like Oroberyl. Top clears will display on player namecards.
A new permanent combat mode, Trial Algorithmics (also called Sword Sect Drill or Trial of Swordmancy), launches on June 12. Draw random dataplates or cards to boost enemy strength in exchange for higher rewards. Hit exactly 10 points for maximum payout. Players can deploy turrets for support, and completion grants Wuling management rights. Crisis Fragment also unlocks post-story for repeated boss challenges with fresh rewards.
Additional updates include the Umbral Monument series Contention of Deathly Silences (starting July 2), operator side stories (A Fistful of Reflections for Mi Fu and Danse Macabre for Camille), and a camera event rerun.
Quality-of-Life and Factory Improvements
Version 1.3 focuses heavily on smoothing out daily play. AIC/factory management sees big wins:
- Bulk artificing for multiple gear pieces at once.
- Batch dismantling and locking of weapons.
- Automatic "Perfect Match" detection for weapon essences.
- Backup Power to prevent downtime during energy shortages.
- Regional overview buttons and improved crucible handling for blockages.
- Expanded power connections between core and outer AIC areas.
Daily missions now emphasize Sanity-heavy tasks with lower kill requirements and better rewards. Controls get optimizations for keyboard/mouse, controller, and overlapping object selection. Decorations move to their own inventory tab, and story proper nouns become easier to check.
New gear set Grizzled Edge, updated pieces for Qingbo and Swordmancer sets, plus decorative ornaments like Tiger Cage and Sanguine Memories round out the additions.
What to Expect
Sketches of Lost Heirlooms feels like a turning point for Arknights: Endfield. It delivers on promises of deeper exploration, satisfying combat loops, and much-needed convenience without overwhelming early-game players. The new region and operators open fresh team-building paths, while the endgame modes give veterans meaningful long-term goals.
Keep an eye on the official channels for exact maintenance times and preload info as June 5 approaches. Whether you are pulling for Mi Fu's fist-focused combos or diving into Sword Vault Dale's ruins, Version 1.3 looks ready to keep the momentum rolling in Talos.
Stay tuned for more hands-on impressions once the update drops. Endministrators, get your factories in order. The past is calling.
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