The activities at the Congress were held mostly in French but also in English, depending on the speaker and the audience. We welcomed the participation of non-french-speaking colleagues.
For the practical matters, we offered a minimal English translation of the main pages of this website (look for the text in italic at the bottom of the pages). You could contact the organizers in case of doubts.
You can also inspect the translation offered by Google, by following this link [English web version].