WordPress 2.5.1 發佈，這次的內容包含許多bug 修正，效能提升與安全性修正，建議盡快進行升級。
Version 2.5.1 of WordPress is now available. It includes a number of bug fixes, performance enhancements, and one very important security fix. We recommend everyone update immediately, particularly if your blog has open registration. The vulnerability is not public but it will be shortly.
更多升級相關訊息請參閱官網：
http://wordpress.org/development/2008/04/wordpress-251/
WordPress 2.5.1 正體中文語系，skyfate 也同步發佈，你可以在http://blog.beyes.tw/197找到相關資訊。