WordPress 2.8 code-named Baker is now available for download. This full release comes with a bunch of bug fixes – – over 790 bugs, widgets, taxonomies, improvements to themes and overall speed.
The upgrade bar at the top of the WordPress Dashboard that says “Word 2.8 is available! Please update now” is not yet available, it still has to come-up. Nonetheless if you want to upgrade, move to the WordPress Blog, read through the new release notes and hit the download link.