On January 31st, 2009 WordPress 2.7.1 beta was released on the WP-Testers mailing list. For those interested, you can download it here or if you would like to automatically upgrade from 2.7 to 2.7.1-beta1, change the version in wp-includes/version.php from 2.7 to 2.7.1-foo and then visit Tools->Upgrade as per Ryan Boren.
/READ MORE// WordPress MU 2.7 Now Available
2.7.1 contains at least 65 completed trouble tickets with another 50 set for the 2.7.1 milestone. However, looks like most of those will be moved to the next milestone which is 2.7.2 or 2.8. If you are interested in fixing any one of the available tickets for this milestone, please visit the 2.7.1 status page and make your presence known.