The Stable channel has been updated to 66.0.3359.137 (Platform version: 10452.74.0) for most Chrome OS devices. This build contains a number of bug fixes and security updates. 
Systems will be receiving updates over the next several days.

New Features
  • Adding new keyboard shortcut to move windows from display-to-display
  • New Chrome OS Keyboard Shortcut Helper
  • External Display Settings enhancements
  • Enable Video Recording in Chrome Camera App
  • Overview window animation improvements
  • Extending more devices support for Magic Tether
  • Picture in Picture Magnification
  • Ability to zoom up to 20x with Chrome OS magnifier
  • Ability to adjust full screen mag zoom level through pinch gesture
  • Screen sharing support for Android apps installed via the Google Play Store
  • Add Google Play into first login Opt-in window 
  • Google Play GDPR support
  • Google Play Maximized Window support improvements
  • Automatically pass user credentials from Chrome OS login to network 802.1x authentication
  • Native printing support extended to Google Play applications 
  • Add Sync notice during initial sign-in 

Security FixesNote: 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.
  • Intel devices on 3.8 kernels received the KPTI mitigation against Meltdown with Chrome OS 66. All Chrome OS devices are now protected against Meltdown.
If you find new issues, please let us know by visiting our forum or filing a bug. Interested in switching channels? Find out how. You can submit feedback using ‘Report an issue...’ in the Chrome menu (3 vertical dots in the upper right corner of the browser).

Josafat Garcia
Google Chrome