Stable Channel Update for ChromeOS / ChromeOS Flex

M-139, ChromeOS version 16328.55.0 (Browser version 139.0.7258.137), has rolled out to ChromeOS devices on the Stable channel.

If you find new issues, please let us know one of the following ways:

  1. File a bug

  2. Visit our ChromeOS communities

    1. General: Chromebook Help Community

    2. Beta Specific: ChromeOS Beta Help Community

  3. Report an issue or send feedback on Chrome

  4. Interested in switching channels? Find out how.


Security Fixes and Rewards


Other 3rd Party Security Fixes Included:


High Fixes  CVE-2025-0932 Use After Free vulnerability in Arm Ltd Bifrost GPU Userspace Driver

Medium Fixes CVE-2025-38349Use After Free vulnerability on Linux system as a local user.


Android Security fixes can be found here


Chrome Browser Security Fixes:


[$TBD] [423387026] Medium CVE-2025-8578 Use after free in Cast. Reported by Fayez on 2025-06-09

[$2000.0] [416942878] Low CVE-2025-8581 Inappropriate implementation in Extensions. Reported by Vincent Dragnea on 2025-05-11 

[$2000.0] [414760982] Medium CVE-2025-8576 Use after free in Extensions. Reported by asnine on 2025-04-30 

[$2000.0] [411544197] Low CVE-2025-8580 Inappropriate implementation in Filesystems. Reported by Huuuuu on 2025-04-18 

[$500.0] [373794472] Low CVE-2025-8583 Inappropriate implementation in Permissions. Reported by Shaheen Fazim on 2024-10-16

[$1000.0] [40089450] Low CVE-2025-8582 Insufficient validation of untrusted input in DOM. Reported by Anonymous on 2017-10-31

[$TBD] [435139154] High CVE-2025-8901 Out of bounds write in ANGLE. Reported by Google Big Sleep on 2025-07-30

[$TBD] [433800617] Medium CVE-2025-8881 Inappropriate implementation in File Picker. Reported by Alesandro Ortiz on 2025-07-23

[$70000.0] [433533359] High CVE-2025-8880 Race in V8. Reported by Seunghyun Lee (@0x10n) on 2025-07-23

[$7000.0] [432035817] High CVE-2025-8879 Heap buffer overflow in libaom. Reported by Anonymous on 2025-07-15


Andy Wu
Google ChromeOS

Chrome for Android Update

Hi, everyone! We've just released Chrome 139 (139.0.7258.143) for Android. It'll become available on Google Play over the next few days. 

This release includes stability and performance improvements. You can see a full list of the changes in the Git log. If you find a new issue, please let us know by filing a bug.


Android releases contain the same security fixes as their corresponding Desktop releases (Windows & Mac: 139.0.7258.138/.139, Linux: 139.0.7258.138) unless otherwise noted.


Harry Souders
Google Chrome

Train a GPT2 model with JAX on TPU for free

Build and train a GPT2 model from scratch using JAX on Google TPUs, with a complete Python notebook for free-tier Colab or Kaggle. Learn how to define a hardware mesh, partition model parameters and input data for data parallelism, and optimize the model training process.

Extended Stable Updates for Desktop

The Extended Stable channel has been updated to 138.0.7204.243 for Windows and Mac which will roll out over the coming days/weeks.

A full list of changes in this build is available in the log. Interested in switching release channels? Find out how here. If you find a new issue, please let us know by filing a bug. The community help forum is also a great place to reach out for help or learn about common issues.

Srinivas Sista
Google Chrome

Stable Channel Update for Desktop

The Stable channel has been updated to 139.0.7258.138/.139 for Windows, Mac and 139.0.7258.138 for Linux which will roll out over the coming days/weeks. A full list of changes in this build is available in the Log.

Security Fixes and Rewards

Note: Access to bug details and links may be kept restricted until a majority of users are updated with a fix. We will also retain restrictions if the bug exists in a third party library that other projects similarly depend on, but haven’t yet fixed

This update includes 1 security fix. Below, we highlight fixes that were contributed by external researchers. Please see the Chrome Security Page for more information.
[N/A][436181695] High CVE-2025-9132: Out of bounds write in V8. Reported by Google Big Sleep on 2025-08-04
We would also like to thank all security researchers that worked with us during the development cycle to prevent security bugs from ever reaching the stable channel.


Interested in switching release channels? Find out how here. If you find a new issue, please let us know by filing a bug. The community help forum is also a great place to reach out for help or learn about common issues.


Srinivas Sista
Google Chrome

Arrow keys now move an object by a pixel distance in Google Slides

What's Changing

Prior to today, when using the arrow keys to move objects in Google Slides, the object would move a great distance. To improve upon this experience, the using the arrow keys to “nudge” an object will now move by 1 pixel. If you want to move the object a larger distance, use “Shift” + arrow key. 


Rollout details

  • Rapid Release and Scheduled Release domains: Gradual rollout (up to 15 days for feature visibility) starting on August 19, 2025.  

Availability: 

  • Available to Google Workspace customers, Google Workspace Individual subscribers, and users with personal Google accounts. 

Resources:



Create and manage student groups using the Google Classroom API

What’s changing 

Last year, we announced a new feature that enables teachers to create groups of students in Google Classroom. Now, we are excited to announce the launch of the Google Classroom API Student Groups endpoints which enable developers to manage student groups and group members on behalf of administrators and teachers. 

The Student Groups endpoints are currently available through the Google Workspace Developer Preview Program (DPP). Specifically, developers will be able to: 
  • Create, modify, and delete student groups within a course. 
  • Add and remove members within student groups. 
This launch will help Developers to programmatically read and manage student groups in Google Classroom, enabling greater integration between Google Classroom and other tools used by teachers. 

Getting Started 

  1. To access Google Classroom API Student Group endpoints, join the Google Workspace Developer Preview Program. 
  2. Begin development following the Manage student groups guide. 
  3. Provide feedback. We would love to hear what you think! 

Who’s impacted 

  • Developers building integrations with the Google Classroom API. 

Rollout pace 

  • Available now through the Google Workspace Developer Preview Program. 

Availability 

  • API requests are permitted on behalf of teachers and administrators with a Google Workspace for Education Plus license. 

Resources 



Dev Channel Update for ChromeOS / ChromeOS Flex

The ChromeOS Dev channel is being updated to OS version 16371.13.0 (Browser version 140.0.7339.18) for most ChromeOS devices.

If you find new issues, please let us know one of the following ways:
  1. File a bug

  2. Visit our ChromeOS communities

    1. General: Chromebook Help Community

    2. Beta Specific: ChromeOS Beta Help Community

  3. Report an issue or send feedback on Chrome

  4. Interested in switching channels? Find out how.

Luis Menezes

Google ChromeOS