Arknights Endfield Phase 3 Roadmap: Yvonne Banner, Delver of the Cryptic & 1.1 Leaks

Arknights: Endfield is entering a pivotal transition as we move from Phase 2 into Phase 3 of the “Zeroth Directive” lifecycle. Tomorrow, February 24, 2026, brings a major banner rotation, a brand-new game mode, and critical resource management deadlines that every player needs to know.

TL;DR - Phase 3 Key Points

Yvonne “Hues of Passion” Banner: Launches February 24 at 12:00 server time
New Permanent Mode: “Delver of the Cryptic” puzzle mode with Protocol Spaces
Gilberta Banner Ends: Last chance today (February 23)
Mail Expiry: Fortune Connect-and-Win rewards expire today
Sanity Discount: March 2, 2026 - prepare with Sanity Extractors
Version 1.1 Leaks: Tangtang and Mi Fu coming mid-March

Starting tomorrow at 12:00 server time, the 6-star Yvonne debuts in the “Hues of Passion” Chartered Headhunting banner.

Operator Profile

Yvonne is a Cryo Striker whose damage profile centers on high-frequency sustained basic attacks.

Key Mechanic

Her kit revolves around the Solidification status effect. Her battle skill, Brr-Brr-Bomb β, consumes Cryo or Nature stacks to forcibly apply Solidification and refund a massive amount of Ultimate energy.

Build Advice

Focus on Intellect (INT) as her main attribute to scale damage, and Agility (AGI) to boost critical hit frequency.

Signature Weapon

Her signature handcannon, Artzy Tyrannical, will be featured on the simultaneous “Graffiti Issue” Arsenal banner.

New Permanent Mode: Delver of the Cryptic

Phase 3 introduces Delver of the Cryptic, a permanent puzzle-based challenge mode. This mode features “Protocol Spaces” that focus on environmental problem-solving rather than just combat power.

Puzzles

Expect “Repair Logic” challenges (using Tetris-like figures to restore power) and symbol sequence puzzles tied to character verbal cues.

Rewards

Completing these challenges is a reliable way to farm Oroberyls, Arsenal Tickets, and vital progression materials like Compact Scripts.

If you have been pulling for Gilberta in “The Floaty Messenger” banner, today is your last chance.

Pity Warning

Crucially, the 120-pull hard guarantee in Arknights: Endfield does not carry over between Chartered Headhunting banners. If you are close to the 120-pull mark but haven’t reached it, those pulls will reset when Yvonne’s banner goes live.

Mail Rewards

Today, February 23, is the final day for the Fortune Connect-and-Win mail event. Ensure you claim your daily mail to receive Oroberyls and Sanity concentrates before they expire.

Pro-Tip: Prepare for the March 2 Sanity Discount

A “Sanity Discount” event is scheduled for March 2, 2026. While the exact mechanics often involve a daily limit (e.g., your first three runs per day), veteran players are already preparing.

Sanity Extractors

If you have the premium Protocol Pass, you can use the Sanity Extractors found at levels 23 and 38. Each can store 120 expiring Sanity, allowing you to bank up to 1,200 Sanity for use when the discount event goes live.

Looking Ahead: Version 1.1 Leaks

Community buzz is already shifting toward Version 1.1, expected in mid-March. Reliable leaks suggest a focus on the Wuling expansion, potentially introducing:

Tangtang (6-star Nature or Physical Striker)
Mi Fu (6-star Heat Caster)

Active Codes

Don’t forget to redeem these active codes for an immediate resource boost:

Code	Rewards
ENDFIELDGIFT	150 Oroberyl, 10,000 T-Creds, and combat records
ENDFIELD4PC	13,000 T-Creds and materials (PC exclusive)

Summary

Phase 3 marks a significant shift in Arknights: Endfield’s lifecycle with the introduction of puzzle-based gameplay through Delver of the Cryptic. Whether you’re pulling for Yvonne, finishing Gilberta, or prepping for the Sanity Discount, make sure to claim your mail rewards before they expire today.