Wuthering Waves Version 3.7, titled Prism’s Illusion, Heart’s Illumination, launches on September 30, 2026. Kuro Games’ free-to-play open-world action RPG adds new story, the first playable Sentinel, a second new Electro Resonator, a new Mengzhou area, five Echoes, and a long list of quality-of-life upgrades.
If you are searching for the Wuthering Waves 3.7 release date, maintenance window, Hsin and Suoming banners, or what to download before servers reopen, this is the night-before rundown from official preview and maintenance notices.
Release date and Version 3.7 maintenance
Official materials lock Version 3.7 for September 30, 2026 (UTC+8). The Version 3.7 Update Maintenance Notice schedules downtime for:
- Maintenance: September 30, 2026, 04:00–11:00 (UTC+8)
- Compensation: Astrite ×300 and Crystal Solvent ×2 (claimable until the next version update for eligible accounts with Mail unlocked before maintenance starts)
- Pre-download: started September 28, 2026 at 10:00 (UTC+8); PC needs roughly 46 GB free (≈26 GB package), mobile about 20 GB free (≈13 GB package)
After maintenance finishes, update via the PC launcher, mobile store / in-game prompt, PS5 Options → Check for Update, or Xbox Manage Updates / Xbox PC app Files tab.
What’s new: story, Simulacrum Nexus, Hsin and Suoming
Version 3.7 continues Chapter IV with Main Quest Act IV: Simulacrum of the Heart, plus the new Tales Quest Moonlike Heart, Mortal Longing. The update opens the Simulacrum Nexus of Mengzhou (areas such as Heartscape Labyrinth and the Hearts of Flames, Frost, Bloom, Stillness, Ruin, and Appearance).
Two new 5-star Electro Resonators headline the patch:
- Hsin — Electro / Rectifier, the first playable Sentinel (Moon Fox). Phase 1 Featured Resonator Convene As Full as Tonight, Forever; signature weapon Blooming Jadehaven. Phase 1 also reruns Iuno and Chisa.
- Suoming — Electro / Sword. Phase 2 Featured Resonator Convene Nine Deaths, One Unbent Heart; signature weapon Unspoken Rue. Phase 2 also reruns Lynae and Lucilla.
Echoes, events, and QoL players will feel
Echo collectors get five new Echoes — Formrender, Soulfrayer, Skywatch Lancer, Bloomburst Puppet, and Jade Nether Serpent — plus Phantom: Skywatch Lancer and three new Sonata Effects (Heart of Sworn Vigil, Flash of Electric Reflection, Flower of Tinged Yearning).
Notable system upgrades from the official preview:
- Main Quest Replay through the Journey Log (initially Versions 1.1–1.3 content)
- Echo stacking for matching unequipped, non-upgraded Echoes (up to 999 per stack)
- Expanded camera tools (Handheld / Selfie modes), up to 20 team setups, and a limited test of tiered client resource downloads (UHD / HD / SD on eligible PC; HD / SD on mobile)
- Events including Cubie Wars, Gifts of Waking Moon, Echo Erase, Dreams in the Capsule, Artisan’s Search, Beyond the Waves: Land of Xuanfang, and the permanent Blooms for the Shadow
Who should log in on day one
- Astrite planners deciding between Hsin (Phase 1 Sentinel debut) and Suoming (Phase 2)
- Story players ready for Chapter IV Act IV and the Simulacrum Nexus
- Echo / QoL fans who want stacking, replay, and lighter downloads on mobile or low-storage PCs
Official sources: the Gematsu Version 3.7 overview (via Kuro Games), the Version 3.7 maintenance notice, and the official Kuro Games 3.7 special report.
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