Improving on the stability and security of the PHP 5.2.x series, the development team has released 5.2.12, providing over 60 patches for bugs and security issues. As a webmaster, please be sure your hosting provider is keeping up with these releases to keep your site running smoothly and safely. You should also be maintaining a test environment to perform testing and validation of your website on the latest stable versions of PHP and MySQL.

Full details of this release can be found in the release announcement and changelog on the PHP site. There is also an upgrade guide, detailing differences between PHP 5.2.12 and previous versions.