From the WordPress Blog:
I’m happy to announce that version 2.6 of WordPress.org is now available, almost a month ahead schedule. Version 2.6 “Tyner”, named for jazz pianist McCoy Tyner, contains a number of new features that make WordPress a more powerful CMS: you can now track changes to every post and page and easily post from wherever you are on the web, plus there are dozens of incremental improvements to the features introduced in version 2.5.
This is a really solid release and I’m pretty excited about the new change tracking. We could well see WordPress start to become a viable option as an enterprise CMS solution.