I am due to give a paper at a conference in a couple of months.

They want a version of the paper submitted beforehand to circulate to the other people on the panel to help discussion after all the talks have been given.

My question is just how detailed the two versions need to be. I've been approached the circulated version as if it were for a journal, i.e. full footnotes, refs, and bibliography (which I wont have time to mention in my 15 mins of fame). Surely the two versions don't have to been exactly the same?