Hello, I'm looking for a symfony-based CMS, and I have heard about Diem and Apostrophe, but none of them offers all of the features I am searching for.
In your opinion, which of these CMS' is the most easy to extend? Do you know any other Symfony-based CMS I would want to consider?
EDIT : By 'to extend' I mean adding probably unsupported features, like Pdf rendering, adding menu from another sf application, content creation through web services... and all sort of special stuff my client would want.