On: PHP 5.5.5 Released

Note there is no speed improvement between PHP 5.4 and 5.5

Unless you need a 5.5 feature, best to wait.

Of course you can manually install the open-sourced zend opcode cache into PHP 5.4 and get the speed improvement from that.

That's a rather bold statement to make. Windows users, for instance, see a tremendous speed bump in going to 5.5 (http://blog.syntaxc4.net/post/2013/06/20/php-5-5-0-for-windo...).

Obviously going the "there is/isn't performance gains" flamewar route alone is a conversation nobody would win. So I would through this out there: If you have the capability to move to PHP 5.5, because there aren't performance penalties, you should - if for no other reason than it'll help you stay ahead of the PHP EOL sythe.