Arknights: Endfield 1.6 Banner: Si and Argent Flow

Hello, Endministrators. Arknights: Endfield Version 1.6 [Sanctuary of Ink] will officially launch on October 15, 2026, and its banner lineup has now been confirmed through the Version Preview.

Version 1.6 introduces two new 6-star Operators: Si, a Cryo Supporter in the first banner, and Argent Flow, an Electric Guard arriving in the second half. A Tangtang RE-Factor Headhunting banner will also run during the version.

Here is the confirmed Endfield 1.6 banner schedule, along with what we currently know about Si and Argent Flow's combat roles.

Endfield 1.6 Banner Overview

The confirmed Version 1.6 banner schedule is as follows:

Si's Rejuvenation Chartered Headhunting begins with the Version 1.6 update and runs until November 5 at 11:59 server time. Argent Flow's The Hearth Fire Beckons the Starry Flow banner starts immediately afterward at 12:00.

Tangtang also returns through the Ancestral Spring Flows Anew RE-Factor Headhunting from October 29 to November 19, meaning her rerun overlaps with both new Operators.

Arknights Endfield 1.6 Release Date

Arknights: Endfield Version 1.6 [Sanctuary of Ink] will officially launch on October 15, 2026.

The update is a new Core Chapter version and will introduce Si and Argent Flow alongside new story content, the Si's Painting area, additional events, and other gameplay updates.

You can also check our Arknights: Endfield banner roadmap for the broader 2026 banner schedule.

Endfield 1.6 New Characters

Phase 1: Si

Rarity: 6★ | Element: Cryo | Class: Supporter | Weapon: Greatsword

Si is confirmed as the first new 6-star Operator of Version 1.6. Her Rejuvenation banner runs from the October 15 update until November 5.

Endministrators have already seen her several times in Endfield's story and previous future-version previews. Si is closely connected to the Feranmuts and has long been known as a Feranmut Proxy. Her design and combat animations heavily feature ink, scrolls, and Ink Spirits.

The Version Preview also confirms that earlier leaks describing Si as a Heat Caster were incorrect. Her official role is a Cryo Supporter, with a kit built around Artful Intent and her Inksoul.

Si can create an Inksoul linked to an enemy and use it as another target for attacks and effects. Her kit also gives her strong team utility, including support for both Cryo and Heat damage, making her relevant outside a pure Cryo lineup.

This gives Si considerable flexibility. Cryo-focused teams can use her for additional support and damage, while Heat teams built around Operators such as Laevatain can also benefit from her buffs.

 

Phase 2: Argent Flow

Rarity: 6★ | Element: Electric | Class: Guard | Weapon: Sword

Argent Flow is the second new 6-star Operator of Version 1.6. His banner, The Hearth Fire Beckons the Starry Flow, begins on November 5, 2026.

He is the Hongshan Imperial Guard previously shown in official future-version previews. Earlier leaks referred to him by the name Ye Minghui, but his official English Operator name is now confirmed as Argent Flow.

The Version Preview also settles the earlier conflicting class and element information. Argent Flow is officially an Electric Guard, rather than the Physical or Electric Vanguard versions that appeared in older leaks.

His kit focuses on Electrification, Vulnerability, and Sunderization. He can apply debuffs that increase the damage enemies take, then detonate accumulated effects for additional Electric damage.

Argent Flow also fights alongside his galloper, Nuli. His combat animations feature mounted charges and high-mobility attacks, giving him a very different presentation from most current Guards.

Because Electrification can increase the damage a target takes from multiple damage types, Argent Flow has potential beyond a strictly Electric-focused team and may fit both Physical and Arts-oriented setups.

Prepare for Endfield 1.6

Version 1.6 now has two confirmed new 6-star Operators, with Tangtang's RE-Factor rerun running between them. If you are interested in more than one banner, plan your Oroberyl and Chartered Headhunting Permits carefully.

Si arrives first on October 15 and offers flexible support for Cryo and Heat teams. Argent Flow follows on November 5 with an Electric Guard kit focused on debuffs, damage amplification, and burst damage.

Their final pull value will be easier to judge after Version 1.6 goes live and their complete in-game numbers can be tested in actual teams.

If you need extra Origeometry when the Version 1.6 banners arrive, you can also top up Arknights: Endfield through LDShop and prepare your pulls before Si or Argent Flow's banner opens.