WordPress has launched a new version of the WordPress software – version 3.3. Its nickname is “Sonny,” named after the jazz saxophonist Sonny Stitt (not entirely sure why).

WordPress founder Matt Mullenweg says WordPress has had over 65 million downloads since version 3.0 was released. This is its third major iteration. The following video shows off the new features.

The new features include:

– a new drag-and-drop uploader for media
– hover navigation menus
– a new toolbar
– better co-editing support
– a new Tumblr importer
– improved iPad experience

“We’ve also been thinking a ton about what the WordPress experience is like for people completely new to the software,” says Mullenweg. “Version 3.3 has significant improvements there with pointer tips for new features included in each update, a friendly welcome message for first-time users, and revamped help tabs throughout the interface.”

For developers, there’s a new editor API, a new jQuery version, new ways to hook into the help screen, and more. The list of changes is here.