The latest versions of the PHP language in the 5.4.x and 5.5.x series have been released - PHP 5.4.41 and PHP 5.5.25.

These releases both fix several bugs including seven security related issues around the character in a pathname, a DoS vulnerability in the multi-part form data handling and an integer overflow in ftp_genlist.

As always, upgrading to these latest versions is always recommended (especially when there's security updates involved). You can grab the latest from the downloads page or the windows.php.net site if you're on a Windows platform. For the full list of changes, see the Changelog for the matching version.