santisaez/powerstack — Issue #22: Upgrade to upstream PHP 5.4.0
Author: santisaez
Created: 2012-03-08 07:12:20+00:00
State: open

**PHP 5.4.0** is available since 2012-03-01, see the [announcement](http://php.net/releases/5_4_0.php) and [ChangeLog](http://php.net/ChangeLog-5.php).

#### Key new features on PHP 5.4.0:

* [Traits](http://php.net/traits)
* [Shortened array syntax](http://docs.php.net/manual/en/language.types.array.php)
* [CLI provides a built-in webserver for testing purposes](http://php.net/manual/en/features.commandline.webserver.php) (read more info about this feature on [this post](http://www.lornajane.net/posts/2012/php-5-4-built-in-webserver))
* Significantly **improves performance** and **memory footprint**
* Fixes over 100 bugs

#### Migrating from PHP 5.3

For [PowerStack](http://powerstack.org) users upgrading from PHP 5.3 there is a [migration guide] (http://php.net/migration54) and you can also review the [ChangeLog](http://php.net/ChangeLog-5.php) with a detailed list of changes.