tehgeek.org

Now that Chrome version 4 has been officially released as a stable browser version, Google has now given users a chance to check out the Chrome 5 beta. Javascript performance has improved in this version, as I ran a SunSpider test for my previous Chrome 4.0.249.78 version and overall benchmark speed has increased when comparing to this new 5.0.307.1 version.

http://www.thechromesource.com/chrome-5-beta-released/