Estelle Yomba of Google Chrome has today announced the release of Chrome Beta 63 (63.0.3239.20) exclusively for Android devices. It's already made available in Google Play Stores by Google.
One can easily find the partial least of the changes in the Git log. The new features will be made available on the Chromium blog in details, very soon. The developers can visit if they want to check out the updates related to the web platform.
Do let us know of any kind of new issues that you come across by filing a bug. If you need more information about Chrome for Android you can pay a visit to the Chrome site.