Honkai: Star Rail Version 4.5 "To Roll the Stars in Astropolis": Livestream Schedule, Release Date, and Phase 1 & 2 Banners

HoYoverse's next major update for Honkai: Star Rail, Version 4.5 "To Roll the Stars in Astropolis," is set to debut two highly anticipated alternate-form (SP) characters. Here is everything confirmed and expected for the livestream, the global release schedule, and the Phase 1 and Phase 2 banners.

Livestream Date and Time: August 14, 2026

The Version 4.5 Special Program goes live today, August 14, 2026, at 19:30 (UTC+8) on the official Honkai: Star Rail YouTube and Twitch channels . The broadcast airs simultaneously worldwide. Use the table below to find your local start time:

Time Zone	Local Time (August 14, 2026)
Pacific Daylight Time (UTC-7)	4:30 AM
Central Daylight Time (UTC-5)	6:30 AM
Eastern Daylight Time (UTC-4)	7:30 AM
British Summer Time (UTC+1)	12:30 PM
Central European Summer Time (UTC+2)	1:30 PM
Moscow Time (UTC+3)	2:30 PM
India Standard Time (UTC+5:30)	5:00 PM
China Standard Time / WITA (UTC+8)	7:30 PM
Japan Standard Time (UTC+9)	8:30 PM

During the livestream, HoYoverse typically reveals three promo codes that reward a total of 300 Stellar Jade. These codes are usually valid for only about 24 hours, so be sure to redeem them soon after they air .

Version 4.5 Expected Release Schedule

Based on the game's consistent six-week update cadence, Version 4.5 is expected to deploy on the following dates :

• North America server: Tuesday evening, August 25, 2026
• Europe and Asia servers: Wednesday, August 26, 2026

The exact server maintenance timing will be confirmed during the August 14 livestream, but players can expect to pre-load the update roughly two days before the official release .

Phase 1 Banner: Robin • Summeretto

Phase 1 Duration: ~August 25/26 to September 16, 2026

Robin takes on a new summer-themed form in Phase 1. Robin • Summeretto is a 5-star Wind character following The Remembrance path . Her role is expected to be a team enabler capable of acting as a support and sub-DPS, potentially utilizing the Remembrance path's Memosprite summon mechanics for a fresh combat style . Her kit centers on summoning a microphone-wielding bird companion .

Character	Rarity	Element	Path	Expected Role
Robin • Summeretto	★★★★★	Wind	Remembrance	Support / Sub-DPS

Important note: The information for both banners is considered highly likely based on official teasers and reliable pre-release information, but banner order, rerun details, and Light Cone specifics are not fully locked until the special program airs later today .

Phase 2 Banner: Aventurine • Waveflair

Phase 2 Duration: ~September 16 to October 6, 2026

Aventurine appears in his debut SP form in Phase 2. Aventurine • Waveflair is a 5-star Quantum character following The Elation path . He is expected to be an AoE follow-up attack DPS, designed to be a powerful carry for teams that can trigger frequent follow-up attacks .

Character	Rarity	Element	Path	Expected Role
Aventurine • Waveflair	★★★★★	Quantum	Elation	AoE DPS

Leak discussions have also mentioned potential rerun candidates like Ashveil and Aglaea, but no rerun banners alongside these new units have been officially confirmed .

Key Takeaway

The only fully confirmed facts as of now are the livestream time on August 14, 2026 at 19:30 UTC+8 and the two new SP characters. The exact banner schedule, rerun characters, and full kit details will be locked in once the Version 4.5 Special Program begins. Set your alarms, collect the livestream codes, and get ready for a summer-filled trip to the Astropolis.