Dune 2.9.1

Dear all,

on behalf of the Dune team I'm pleased to announce the release of Dune 2.9.1.

This is a minor release, fixing an important problem with opam file generation when (lang dune 2.9) was set, and a few other minor fixes.

See full changelog
  • Don't use subst --root in Opam files (https://github.com/ocaml/dune/pull/4806, @MisterDA)

  • Fix compilation on Haiku (https://github.com/ocaml/dune/pull/4885, @Sylvain78)

  • Allow depending on ocamldoc library when ocamlfind is not installed. (https://github.com/ocaml/dune/pull/4811, fixes https://github.com/ocaml/dune/issues/4809, @nojb)

  • Fix (enabled_if ...) for installed libraries (https://github.com/ocaml/dune/pull/4824, fixes https://github.com/ocaml/dune/issues/4821, @dra27)

  • Create more future-proof opam files using --promote-install-files=false (https://github.com/ocaml/dune/pull/4860, @bobot)