Source: http://lists.mysql.com/announce/345
Dear MySQL users,
MySQL AB announces an updated release of the “MySQL Connector/PHP for MySQL and PHP”, the Windows downloads for connecting MySQL to PHP, as MySQL AB has released MySQL 4.1.18.
The MySQL Connector/PHP consists of the mysql/mysqli PHP extensions built against the latest version of the MySQL client libraries for Microsoft Windows.
The advantages on top of the mysql/mysqli PHP extensions currently available from php.net are that they contain the latest bug fixes to the MySQL Client Library, and make all the features in the MySQL server versions 4.1.18 and 5.0.18 available.
They are now available in binary format from the MySQL Connector/PHP download page at http://dev.mysql.com/downloads/connector/php and mirror sites (note that not all the mirror sites may be up to date at this point in time – if you cannot find this version on a mirror, please try again later or choose another mirror site).
This binary release contains the mysql/mysqli extensions as well as the MySQL PDO driver for PHP 5.1.2, with support for MySQL server versions 4.1.18 and 5.0.18. Note that only the mysqli extension for PHP 5.0, but not the older mysql extension, supports the full functionality of MySQL versions greater than 4.1.x, such as Stored Procedures, Triggers, Views, and much more.
For questions not answered within the Download FAQ, please visit the MySQL PHP forums at http://forums.mysql.com/list.php?52.