On Tuesday, August 26, 2025, Google announced a new Stable channel update for Chrome Desktop, advancing to version 139.0.7258.154/.155 for Windows and Mac, and 139.0.7258.154 for Linux.
The update will roll out gradually over the coming days and weeks.
Users can review the complete list of code changes in the Chromium Log.
Platform Versions and Deployment Status
The table below summarizes the current Stable channel builds by operating system and their rollout status:
| Platform | Stable Version | Rollout Status |
|---|---|---|
| Windows | 139.0.7258.154 / .155 | Phased deployment |
| Mac | 139.0.7258.154 / .155 | Phased deployment |
| Linux | 139.0.7258.154 | Phased deployment |
Users on all platforms should ensure their browsers update automatically; manual updates can be triggered via Help → About Google Chrome.
Security Fix Details and Acknowledgments
This Stable release includes one critical security fix.
Due to standard practices aimed at preventing exploit attempts before users are protected, detailed bug descriptions and direct patch links remain restricted until the majority of users have received the update.
The lone fix in this cycle addresses a high-severity Use-after-free vulnerability within the ANGLE graphics library:
- CVE-2025-9478: Use-after-free in ANGLE
- Severity: Critical
- Reported by: Google Big Sleep
- Disclosure date: August 11, 2025
The ANGLE library translates OpenGL ES calls to native APIs on Windows, Mac, and Linux.
A use-after-free flaw in its memory management could enable remote code execution if a malicious web page crafts specific GPU commands.
Google credits the external research team, Google Big Slee, for reporting this issue responsibly.
In addition to the ANGLE fix, Google extends its thanks to all security researchers and community contributors who participated in the development cycle.
Their combined efforts help to maintain Chrome’s robust security posture and prevent vulnerabilities from reaching end users.
How to Get Involved and Report Issues
Users interested in previewing upcoming features can join the Dev channel by following instructions on the Chromium Developers site.
Anyone encountering bugs or regressions is encouraged to file reports at crbug.com. For troubleshooting and community support, visit the Chrome Help Forum.
Google remains committed to frequent updates and timely security patches. Keeping Chrome up to date ensures users benefit from the latest performance enhancements, features, and, most critically, security safeguards.
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