WordPress 2.7 finally in the stable version. Admin panel is redesigned totally look really nice and friendly. As quoted on wordpress.org blog over 150 people contributed code directly to the release.
Check your plug-in compatibility for 2.7 and the upgrade will be smooth as the other versions.
Download WordPress 2.7 Final
WordPress 2.6 is announced. Now we can update our blogs as soon as possible with the new 2.6 features.
Full list of 2.6 features
WordPress 2.5, the culmination of six months of work by the WordPress community, people just like you. The improvements in 2.5 are numerous, and almost entirely a result of your feedback: multi-file uploading, one-click plugin upgrades, built-in galleries, customizable dashboard, salted passwords and cookie encryption, media library, a WYSIWYG that doesn’t mess with your code, concurrent post editing protection, full-screen writing, and search that covers posts and pages.
Code is Poetry http://wordpress.org