Version 3.7 is shaping up to be the finale of the Mengzhou arc in Wuthering Waves, and it brings two brand-new five-star Resonators to the roster. Hsin and Suoming headline the update, both built around the Electro Flare mechanic, and they arrive alongside new story content, a fresh weekly boss, and a set of rumored rerun banners.
Quick answer: Version 3.7 debuts Hsin and Suoming, is estimated to launch on October 1, 2026, and gets a preview broadcast on September 19, 2026.
Wuthering Waves 3.7 release window and preview broadcast
Kuro Games follows a steady 42-day version cycle, and Version 3.6 carries an in-game end date of September 30, 2026. Wuthering Waves always begins the next version the moment the previous one closes, which points to a Version 3.7 launch on October 1, 2026. That date has not been officially announced, so treat it as an estimate until confirmed.
The Version 3.7 Preview Special Broadcast is scheduled for September 19, 2026 at 8:00 PM JST. The teaser confirms 3.7 closes out the Mengzhou (Xuanfang) storyline, and both Hsin and Suoming are expected to feature in the main story. The livestream is also when redemption codes typically drop.
Based on the usual 21-day phase structure, Hsin is expected in Phase 1 and Suoming in Phase 2, with the version running through mid-November.
New characters: Hsin and Suoming
Both new units share the Negative Status Ailment archetype and lean on the Electro Flare mechanic to deal damage. Hsin is positioned as the main DPS, while Suoming works as a support or sub-DPS. Kuro Games has officially confirmed their attributes and weapon types, though full combat kits remain unconfirmed.
Hsin (Electro, Rectifier)
Hsin is the Moon Fox Sentinel of Mengzhou and the first playable Sentinel in the game. She is a five-star Electro Rectifier built as an Electro Flare main DPS. Her design blends eastern fox-spirit motifs with white hair, fox ears, and a red-and-black outfit.
Leaks describe a dual-form kit, with a Normal Form and a Sentinel Form that carry different combat states and separate Resonance Liberations. Her core loop revolves around stacking and detonating Electro Flare to trigger Electro Rage, alongside coordinated attacks and a domain-style field. These mechanical details are still leak-based and could change before release.
Suoming (Electro, Sword)
Suoming is a five-star Electro Sword user from Huating, Mengzhou, and the Founder and Seal Master of the Ten Seals Covenant. Her signature power, Frequency-Locking, seals a target’s frequency to borrow their Forte, with a hard limit of ten anchored frequencies at once.
She is leaked as an Echo Skill focused support who can also contribute personal Electro damage and buff Electro DMG and Resonance Skill DMG from off-field. Her gothic design features red twintails and a flaming oil-paper umbrella that conceals chain and blade attacks, which fits the Sword weapon type rather than replacing it.
Signature weapons in Version 3.7
Two new five-star weapons arrive with the update, one tailored to each new Resonator.
| Weapon | Type | Owner |
|---|---|---|
| Blooming Jadehaven | 5-star Rectifier | Hsin |
| Unspoken Rue | 5-star Sword | Suoming |
Banner lineup and rumored reruns
The two new characters are confirmed, but the rerun lineup remains leak-based until Kuro locks it during the preview broadcast. Beta gamedata points to the following split across the two phases.
| Phase | New 5-star | Rumored reruns |
|---|---|---|
| Phase 1 | Hsin | Chisa, Iuno |
| Phase 2 | Suoming | Lynae, Lucilla |
Chisa is a strong candidate because she is one of the best supports for Negative Status Effect teams, providing healing and a shield while fitting neatly around Hsin. Iuno is a heavy-attack sub-DPS, Lynae enables Tune Break with damage buffs, and Lucilla suits Glacio Chafe and Echo Skill compositions.
No reruns have been officially confirmed. Treat every rerun name as a leak that can shift before the version goes live.
Electro Flare archetype and new Sonata sets
Electro Flare is already in the game, which makes it the most reliable part of any 3.7 planning. Flare stacks periodically deal Electro damage, and new stacks added at the cap convert into Electro Rage, which boosts the next Flare trigger.
- Base Electro Flare cap is 10 stacks, and each trigger consumes half the current stacks.
- Overflow stacks at the cap become Electro Rage, which also caps at 10.
- More stacks mean more damage per trigger.
Electro Rover and the four-star Buling can already apply Flare today, and Suisui’s domain raises both stack ceilings by 3 for a short window. That existing toolkit is why Version 3.7 is expected to finally give Electro Flare a proper payoff DPS in Hsin.
Two new Sonata Effect sets are also coming. One is built around the Electro Flare Negative Status Effect and is expected to be used by Hsin and Suoming. The other is a support set that grants a Healing Bonus and buffs the team’s ATK.
Story, boss, and event content
Version 3.7 continues the Mengzhou storyline with a new main quest, closing out the arc. A new boss is expected to arrive as a weekly challenge, giving players a fresh source of skill upgrade materials.
The version’s main event is another cube-based gameplay mode. The Moon-Chasing Festival is also expected to return, tying directly into Hsin and the wider Mengzhou narrative.
Everything outside of the confirmed attributes, weapon types, and version cadence should still be treated as a work in progress. The preview broadcast on September 19 is where the banner order, reruns, and event schedule will be locked in.
