WordPress 2.9.1 has been released. This release fixes quite a few problems encountered with WordPress 2.9.
After over a million downloads of WordPress 2.9 and lots of feedback from all of you, we’re releasing WordPress 2.9.1. This release addresses a handful of minor issues as well as a rather annoying problem where scheduled posts and pingbacks are not processed correctly due to incompatibilities with some hosts. If any of these issues affect you, give 2.9.1 a try. Download 2.9.1 or upgrade automatically from the Tools->Upgrade menu in your blog’s admin area.