Both have the same filename.
Both have the same "Last Saved" date on the cover page. (Because the author didn't use a field.)
But I got the one missing the useful info.
I really wish we had some form of version control system and repository here, but failing that, can't we all please increment a number in the filename before sharing it with others?
EDIT: Looking closer, it seems he did send me the latest version, but I somehow still printed the old copy. Grr. Maybe I would have picked up on that mistake if there were version numbers!