The Dev channel has been updated to 21.0.1166.0 (Platform versions: 2404.0.0) for Chromebooks (Acer AC700, Samsung Series 5, Samsung Chromebook Series 5 550, and Samsung Chromebox Series 3, and Cr-48). This build contains a number of new features, as well as security & stability improvements.

Highlights of these changes are:

  • Firmware update for Chromebook Series 5 550. Note: A screen with Chrome Logo and a critical update notification will show after update restarts. It will reboot by itself after firmware update completes.
  • Update Kernel version 3.4
  • Update Adobe Flash Player to version 11.3.31.109
  • UI Improvements
  • Stability and security updates

Known issues:
  • 31546: Flash fails to use webcam in youtube.com/my_webcam
  • 130679: Pressing ctrl+t from incognito window opens the new tab in normal window
  • 131630: User name not displayed at login screen
  • 131710: Tab content area is blank grey after minimize/restore



If you find new issues, please let us know by visiting our help site or filing a bug. Interested in switching channels? Find out how. You can submit feedback using ‘Report an issue’ under the wrench menu.

Josafat Garcia
Google Chrome