Prior to their release of the next big jump in the Symfony framework, Fabien Potencier wanted to introduce people to the new version and what they can expect.

Apart from the new exciting features we have in symfony 1.1, this version also represents a year of hard work to refactor the internals. Let's dig into symfony internals a bit!

They talk about the new platform that everything is built of off now including the framework itself (complete with diagrams mapping out the different parts of the MVC whole).