The Developer channel of Chrome for desktop has updated to version 54 on the heels of Chrome OS 53 moving to the Beta channel. Along with bug fixes, security patches and enhancements, the Chrome Release change log contains a number of additions and updates for Android apps and webVR.
If your are interested in trying out the developer build of Chrome, find out how here. Keep in mind, this is a developer build of Chrome. It will most assuredly contain bugs and be unstable. If you find an issue you can report it via the bug tracker. Sharing these issues assist the developers in expediting fixes and updates for future versions of Chrome.
Per normal protocol, the Chrome browser for Windows, Mac and Linux are released first. The Chrome OS version, generally, will begin to roll out in the days following the desktop version. For a schedule of estimated version release dates you can check out the Chromium Developer Calendar.