The Beta channel has been updated to 51.0.2704.79 (Platform version: 8172.47.0) for all Chrome OS devices except Dell Chromebook 11 and the Lenovo N22 Chromebook. This build contains a number of bug fixes, security updates and feature enhancements.
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 horizontal bars in the upper right corner of the browser).