WordPress 2.8.5 has been released. Termed as Hardening Release, this version fixes a critical exploit related to Trackback type Attacks which happened on several blogs recently. Hackers tried to overload the server by sending multiple requests via Trackbacks. So its recommended that you upgrade your blogs immediately. There are several other bug fixes apart from the Trackback DOS Attack Fix. (Yes for some strange reason, attack has been named DOS Attack). Read the original Post from WordPress.org Blog about the release.
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