On Saturday, September 8, 2007, WordPress Version 2.2.3 was released to the public as a security fix update. For information on the changes and improvements in this new version, see Changelog for 2.2.3.
For Version 2.2.3, the database version (db_version in wp_option) remained at 5183.
To download WordPress 2.2.3, visit http://wordpress.org/download/release-archive/
For step-by-step instructions on installing and upgrading WordPress:
If you are new to WordPress, we recommend that you begin with the following:
wp-admin/admin-ajax.php wp-admin/admin-functions.php wp-admin/install-rtl.css wp-admin/options.php wp-admin/rtl.css wp-admin/widgets-rtl.css wp-includes/default-filters.php wp-includes/feed-rss2-comments.php wp-includes/formatting.php wp-includes/pluggable.php wp-includes/plugin.php wp-includes/query.php wp-includes/rewrite.php wp-includes/rss.php wp-includes/vars.php wp-includes/version.php wp-includes/widgets.php wp-mail.php xmlrpc.php