Probably the best example I can think of is Diane Duane reworking her Wizards series to make it modern-day, but there are others, including owners of a literary estate altering books left to them to make them compatible with current standards.
What do you think? Does it matter if it’s the original author or an inheritor?
An author’s work is very different from a filmmaker’s role. An author usually works alone - the creation belongs to them entirely. An author also usually holds sole copyright and can do as they wish.