Call for testers. WordPress 3.5.1 is now in beta and we could use your help. (Use either the 3.5 branch in SVN, the WordPress Beta Tester plugin, or the nightly build (zip).)

There’s about 30 tickets currently resolved, and another few we’re still working on. Here’s the full report of those. In particular, we could use help testing multisite rewrite rules. There’s a comment with testing instructions on the ticket, #23073.