Whilst your core point about books aging is absolutely true I think thats mostly the mass market publications designed to ease entry than actual papers.

Similarly, anything writen about an implementation is short lived. The Idiots Guide to Windows 98 is less useful today than it was in 1998 and is getting less useful with time.

Lovelace, Babbage, Turing, McCarthy et al are still seminal. But these are academic papers that focus on what is possible to compute and how one might construct an implementation.

There are some interesting edge cases too. Is the Gang of Four Design Patterns still relevent? Its not embarassing, but its not as applicable as it used to be.