As announced on the main PHP.net site, the latest version in the PHP 5.6.x series has been released: PHP 5.6.27, a bugfix only release.
The PHP development team announces the immediate availability of PHP 5.6.27. This is a security release. Several security bugs were fixed in this release. All PHP 5.6 users are encouraged to upgrade to this version.
Bugfix locations include DOM, GD mbstring, OpenSSL and SimpleXML. As always, this latest version can be downloaded from the main downloads page (source) or from windows.php.net (binaries). You can view the full list of updates and fixes in the related Changelog.