Google have just launched Chrome beta onto the Google Play store, available to download right now. No, you haven’t travelled back in time. Unlike earlier this year, when the beta was the only available option, this re-release is alongside the stable version so that you can have a choice of which version you want to download.
The beta version brings some very minor interface changes, but the main purpose is to give a big boost to the speed of the browser. Like all betas, you are likely to run into some glitches, so it might be worth downloading both just in case.
Source: Google Play