The PHP development team announces the immediate availability of PHP 5.4.24. About 14 bugs were fixed. All PHP 5.4 users are encouraged to upgrade to this version.

The PHP development team announces the immediate availability of PHP 5.5.8. This release fixes about 20 bugs against PHP 5.5.7 components.

See http://www.php.net/archive/2014.php#id2014-01-10-1 .

Be reminded, that PHP 5.5.x versions include the bytecode cache Zend Optimizer+ which usually let your mediawiki run quicker.