The PHP development team announces the immediate availability of PHP 5.5.22. This release fixes several bugs and addresses CVE-2015-0235 and CVE-2015-0273. All PHP 5.5 users are encouraged to upgrade to this version.
For source downloads of PHP 5.5.22 please visit our downloads page, Windows binaries can be found on windows.php.net/download/. The list of changes is recorded in the ChangeLog.