Re: Semicolon after entities

How can making a new version of a standard break existing pages? If an
existing page uses, for example, HTML 4.01 as its DOCTYPE, and HTML
5.0 is published, won't that page continue to be read by browsers as
HTML 4.01?

(I used to think XHTML was insane. I'm on the verge of changing my
mind because of this :-)