The main PHP.net site has officially announced the release of the latest versions in the PHP 5.5.x and 5.6.x series: PHP 5.6.20 and PHP 5.5.34.
The PHP development team announces the immediate availability of PHP [5.6.20 and 5.5.34]. This is a security release. Several security bugs were fixed in this release. All PHP [5.6 and 5.5] users are encouraged to upgrade to this version.
These releases fix issues in several parts of the language including Curl handing, Fileinfo, Mbstring and ODBC. You can get these latest versions from the main downloads page or windows.php.net for the Windows binaries.