The Beta channel has been updated to 19.0.1084.15 for Windows, Mac, Linux, and Chrome Frame.
For an overview of key features in this release check out the Google Chrome Blog. Interested in switching to the Beta or Stable channels? You can also take a look at the changelog to see what happened in this release since 18.
If you'd like to get on the Beta channel, you can download it from our Beta download page. If you find a new issue, please let us know by filing a bug.