I think so. See https://discuss.ocaml.org/t/is-camlp4-being-deprecated-in-favor-of-ppx/979/ https://discuss.ocaml.org/t/is-camlp4-being-deprecated-in-fa... I

I think so. See https://discuss.ocaml.org/t/is-camlp4-being-deprecated-in-favor-of-ppx/979/ https://discuss.ocaml.org/t/is-camlp4-being-deprecated-in-fa... I recently came back to OCaml (and js_of_ocaml) after being away for a few years. In the time I was gone, js_of_ocaml moved from camlp4 to ppx. (edited to fix link)