Two numbers would be an advantage instead of one - in this way you can
specify a max and a min version supported. With the evolution of the
Web, it might be very difficult to preserve backwards compatibility
forever.
> (Less talk and more work :)
Short enough? ;-)
-- cheers --
Henrik Frystyk
frystyk@W3.org
+ 41 22 767 8265
World-Wide Web Project,
CERN, CH-1211 Geneva 23,
Switzerland