If you have not upgraded to the latest version of WordPress (2.2.1), it is suggested you do it soon. Not only does the latest version include a few minor bug fixes but it also contains security updates for vulnerabilities such as Remote shell injection in PHPMailer and Remote SQL injection in XML-RPC. Not sure what they mean? Update your WordPress to 2.2.1 and you won’t have to find out. Download 2.2.1 now.