The PHP development group has announced the release of the latest version of the language in the PHP 5.5.x series today - PHP 5.5.10.
The PHP development team announces the immediate availability of PHP 5.5.10. Several bugs were fixed in this release, including security issues related to CVEs. CVE-2014-1943, CVE-2014-2270 and CVE-2013-7327 have been addressed in this release. We recommend all PHP 5.5 users to upgrade to this version.
Other changes include fixes to date/time handling, JSON serializing and an upgrade to PCRE 8.34 for regular expression handling. As this release has several security-related fixes, it's highly advised that 5.5.x users upgrade. As always, you can get the latest release from the downloads page or for Windows users, windows.php.net.