Share 'Dated Books, Part 2'

This is a follow-up to my post on reading dated books. My question this time is, “Should a writer update his books for reprint?” I’m asking because when I re-read Donald Hamilton’s LINE OF FIRE a couple of weeks ago, I noticed a reference to the Viet Nam conflict. That struck me because while I was reading a Gold Medal reprint from 1965 or so, the book had originally been published 10 years earl…