That would suck, because then we would be forever forced to use ancient versions, because 2% of our customers are on Windows 95. A much better model would be a

That would suck, because then we would be forever forced to use ancient versions, because 2% of our customers are on Windows 95. A much better model would be a progressive enhancement, where we can deliver optional types that browsers can then use if they understand them. That way there will also be a reason to upgrade for users.