This morning WordPress 2.7 “Coltrane” was released as stable after 2 quick RC’s. The most important change is the major admin interface redesign. For full details check the official wp announcement: http://wordpress.org/development/2008/12/coltrane/

As always, you can download the latest wordpress version from: http://wordpress.org/download/
or if you are using an svn install (like me) you just have to run:
svn sw http://svn.automattic.com/wordpress/tags/2.7/

WordPress 2.7 beta3 was just released and probably we will see the final release very soon. In the meantime, here is a great article outlining the changes this version will bring (a complete rewrite of the admin interface): 10 Things You Need to Know about WordPress 2.7, by Aaron Brazell.

ps. if you are using svn for your installation and want to test this release, you need to update to the trunk version:
svn sw http://svn.automattic.com/wordpress/trunk/