The Dev channel has been updated to 34.0.1847.3 (Platform version: 5500.4.0) for all Chrome OS devices. This build contains a number of bug fixes, security updates and feature enhancements. Here is the chromium changelog.

Edited 4:38pm 2/21/2014: The Samsung Chromebook and HP Chromebook 11 have now been updated to version 34.0.1847.5 (platform version: 5500.9.0).
If you are using are using either the HP Chromebook 14, Toshiba Chromebook 13'3, Acer C720, or Dell Chromebook 11, upon returning from suspended mode after being idle for 20 minutes you may loose audio.  To fix this, suspend your Chromebook manually and upon restore the issue should go away, if it does not restart your Chromebook.  This is a known issue and is currently tracked as issue 345500.

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).

Matthew Yuan
Google Chrome