Release Notes: This release has a new batch of bugfixes and minor changes. There is a new menu_page_url() function that will make it easier to link between multiple admin option pages. The is_post_type() function has been renamed to post_type_exists() to make its purpose more clear and avoid confusion with the other is_*() conditional functions. Barring any unforeseen problems, this will likely be the last release candidate before the official 3.0 release.
Release Notes: There have been more updates to the Post Formats UI, including image drag-and-drop support for the Image format. There is now oEmbed support for Rdio and Spotify, a more polished Post Revisions display, and improvements to the new TwentyThirteen theme.
Release Notes: There were many bugfixes between Beta1 and Beta2, but the biggest change was a new approach to the Post Formats UI, which has done well in user testing.
Release Notes: New features include but are not limited to a new UI for Post Formats, Twenty-Thirteen, an opinionated, colorful, blogging theme, improved audio/video embedding without needing to rely on a third-party service, auto-save that uses browser local storage to keep your edits even if your server or browser crash, post-locking that improves post editing when more than one person needs to edit the same post, improvements to the Nav Menu user interface, and a new revisions feature for comparing edit histories.
Release Notes: This is a maintenance and security update.
Release Notes: This release has a completely new Media Library manager, easier-than-ever image galleries, and a new mobile-first, responsive theme named TwentyTwelve. There are also improvements to multi-site functionality, a retina-ready admin, and many new-and-improved API changes for developers.