PHP 5.4.0 released
Big hitters:array dereferencing - $object->method()[$index] is now valid syntaxbuilt-in webserver via CLI - php -s - http://php.net/manual/en/features.commandline.webserver.phptraits and the insteadof operator - http://php.net/language.oop5.traits.phpshortened array syntax - $array = [1, 2, [1, 2, 3], 4];Finally removed register_globals ;)Default charset of UTF-8!Read all about it! http://www.php.net/manual/en/migration54.php