I just lurk the OCaml forums so don't take what I say as gospel but from what I've understood EIO will _not_ be part of stdlib. The OCaml devs go out of their w

I just lurk the OCaml forums so don't take what I say as gospel but from what I've understood EIO will _not_ be part of stdlib. The OCaml devs go out of their way to not break things in stdlib so from what I've gathered they don't want to include it EIO until there's more real world experience with it and the API has started to settle down. Including it in stdlib might also never happen but that remains to be seen.