WordPress v3.4 release candidate 1 has been released to the public for download and testing. An RC comes after the beta period and before final release. We think we’re done, but with millions of users and thousands of plugins and themes, it’s possible we’ve missed something. So if you haven’t tested WordPress 3.4 yet, now is the time! Please though, not on your live site unless you’re adventurous.
With more than 500 tickets closed, there are quite a few changes. Plugin and theme authors, please test your plugins and themes now, so that if there is a compatibility issue, we can figure it out before the final release.
If you’d like to know which levers to pull in your testing, visit the About page ( → About in the toolbar) and check out the list of features! You’ll definitely want to try the live theme previews.