Symfony 4 was released on November 30th.
Update now to the best Symfony ever!

Behat

Behat is an open source behavior-driven development framework for PHP 5.3 and 5.4. What is behavior-driven development, you ask? It's the idea that you start by writing human-readable sentences that describe a feature of your application and how it should work, and only then implement this behavior in software.

Components used by this project