So engines are interesting in relation to the opening. In fact, engines are useful to watch out for traps and tactics but are not considered up to snuff compared to a veteran GM. In engine vs. engine tournaments, their opening books are chosen in collaboration with Grandmasters who work a lot on opening theory because engines can't "see" well into strategic ideas until the position is quite established.
If you picked out a random Benoni line with an even-ish evaluation by GMs, you'd often find most engines will evaluate it as strongly in White's favor for as many as the first dozen moves, sometimes more. Engines often also like doing things like trading off the Dragon Bishop in the Sicilian Dragon for the sake of a pawn, though this idea typically is terrible strategically.
I was curious if anyone had any good insight into how improving engines have maybe caused there to be changes to opening book theory.
It would stand to reason that as the ability of engines to see more deeply into move combinations, that either different openings would have been solved or perhaps a variation once thought to be not as strong as another, may have been proved to actually be better. I welcome any comments or opinions on this subject, as I know next to nothing about it.