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Honkai Star Rail's 4.5 update arrives after the events following Voracity's launch in Planarcadia. Players will travel next to Astropolis, the Interplanetary Conference (IPC) planet — a stop that promises downtime and new challenges. Below is a concise guide to the 4.5 release schedule, maintenance windows, preload details and what to expect.
Release Dates and Times
The 4.5 update is scheduled to go live on August 25–26, 2026, depending on your region. North American servers will receive the update first, with global rollouts following on August 26. Regional release times are:
- USA: 8:00 PM PST, August 25, 2026
- Canada: 11:00 PM EDT, August 25, 2026
- Brazil: 12:00 AM BRT, August 26, 2026
- United Kingdom: 4:00 AM BST, August 26, 2026
- Italy: 5:00 AM CEST, August 26, 2026
- India: 8:30 AM IST, August 26, 2026
- China: 11:00 AM CST, August 26, 2026
- Japan: 12:00 PM JST, August 26, 2026
- South Korea: 12:00 PM KST, August 26, 2026
- Australia: 1:00 PM AEST, August 26, 2026
- New Zealand: 3:00 PM NZST, August 26, 2026
This update introduces two new special versions of characters: Robin Summeretto and Aventurine Waveflair.
Maintenance Schedule
Servers will be taken offline for roughly five hours while the update is applied. Start and end times by region are listed below.
| Region and Time Zone | Maintenance Start | Maintenance End |
|---|---|---|
| USA (PST) | 3:00 PM, August 25 | 8:00 PM, August 25 |
| Canada (EDT) | 6:00 PM, August 25 | 11:00 PM, August 25 |
| Brazil (BRT) | 7:00 PM, August 25 | 12:00 AM, August 26 |
| United Kingdom (BST) | 11:00 PM, August 25 | 4:00 AM, August 26 |
| Italy (CEST) | 12:00 AM, August 26 | 5:00 AM, August 26 |
| India (IST) | 3:30 AM, August 26 | 8:30 AM, August 26 |
| China (CST) | 6:00 AM, August 26 | 11:00 AM, August 26 |
| Japan (JST) | 7:00 AM, August 26 | 12:00 PM, August 26 |
| South Korea (KST) | 7:00 AM, August 26 | 12:00 PM, August 26 |
| Australia (AEST) | 8:00 AM, August 26 | 1:00 PM, August 26 |
| New Zealand (NZST) | 10:00 AM, August 26 | 3:00 PM, August 26 |
During maintenance, the game servers will be unavailable for login. Players who reached at least Trailblazer Level 4 before maintenance begins will receive 300 Stellar Jades as compensation.
Preload and File Sizes
Preloading for the 4.5 update is available now. File sizes for pre-installation are:
- PC pre-install size: 7.36 GB
- Android and iOS pre-install size: 2.23 GB
Countdown and Availability
A countdown preceded the update launch; at the time of publication, the HSR 4.5 update is now live.
Notes and What’s Next
The 4.5 patch focuses on Astropolis and features the two special character versions mentioned above. Image credit for promotional material is attributed to Hoyoverse.
For additional Honkai coverage and related update notes, see our write-up on the HSR 3.8 Dahlia Calamity boss update: Honkai Star Rail 3.8 Dahlia Calamity boss update.
