- improve COMMIT_MESSAGE
  + review dropped patches

- run tests and file issues upstream
  + 20251020 NetBSD 10 amd64
    List of failed tests:
      tests/lib-bigarray-2/bigarrfml.ml
      tests/lib-systhreads/testyield.ml

- create meta-pkgs/bulk-test-ocaml and build it

- examine unresolved upstream 5.x issues and decide to address or not
  + https://github.com/ocaml/ocaml/issues/11913 [stale]
  + https://github.com/ocaml/ocaml/pull/13320

- test programs using unison
  + unison
  + (call for tests on unison-users)

- fix native compiler build
  (it's not clear what this means, but test native code generation with unison)
