2007年2月21日，Wordpress发布了2.1.1和2.0.9版本。这次更新涉及范围并不大，共修补漏洞约30处，主要有编码、XML-RPC、缓存和HTML代码。2.0.9主要在安全方面进行升级。

官方说明：New Releases: 2.1.1 and 2.0.9

官方下载页面

从2.1升级只需要替换如下文件即可：

• wp-includes/post-template.php
• wp-includes/cache.php
• wp-includes/formatting.php
• wp-includes/category.php
• wp-includes/post.php
• wp-includes/version.php
• wp-includes/js/scriptaculous/wp-scriptaculous.js
• wp-includes/js/tinymce/tiny_mce_config.php
• wp-includes/js/tinymce/wp-mce-help.php
• wp-includes/js/tinymce/tiny_mce_gzip.php
• wp-includes/capabilities.php
• wp-includes/cron.php
• wp-includes/functions.php
• wp-includes/bookmark-template.php
• xmlrpc.php
• wp-admin/admin-ajax.php
• wp-admin/admin-functions.php
• wp-admin/custom-header.php
• wp-admin/options-general.php
• wp-admin/edit.php
• wp-admin/index-extra.php
• wp-admin/options-reading.php

由2.0.7升级至2.0.9(2.0.8未发布)只需要替换如下文件即可：

• wp-includes/cache.php
• wp-includes/wp-db.php
• wp-includes/version.php
• wp-includes/js/tinymce/wp-mce-help.php
• wp-includes/js/tinymce/tiny_mce_gzip.php
• wp-includes/classes.php
• wp-includes/functions.php
• wp-includes/rss-functions.php
• readme.html
• wp-admin/edit-form-advanced.php
• wp-admin/link-import.php
• wp-admin/link-categories.php
• wp-admin/user-edit.php
• wp-admin/options-permalink.php