WordPress 2.8.5 has officially been tagged and is now available for download. If you don’t see the upgrade nags in your administration panel already, give it a few hours and upgrade when it becomes available. This release has been dubbed a security hardening release meaning, more preventive measures have been taken to secure WordPress. Worthy of note though is an issue that was addressed dealing with a trackback spam denial of service attack which was discussed on the WP-Hackers mailing list the other day. This exploit takes advantage of the WP-Trackback.php file which would exhaust a servers resources when used. This has specifically been addressed in 2.8.5. Thanks goes out to Steve Fortuna for releasing a fix to this 0 day exploit. The release also contains a few bug fixes as well.