Sitecore 6 Service Release One is officially out by the name of Sitecore 6.0.1 rev.090212.

A massive list of fixed issues, props to our documentation team for providing nicely formatted change log.

I've done my share of work on it, so I'm just as excited to see it being released. Yay!

This is not a recommended release yet, as we require builds to be used in production for some time to ensure stability first. So make sure to read this notice: It is appropriate for use if it contains fixes for issues that you encounter with the recommended release.