CHANGES:

- Introduce `$ dune ocaml doc` to open and browse documentation. (ocaml/dune#7262, fixes
  ocaml/dune#6831, @EmileTrotignon)

- `dune cache trim` now accepts binary byte units: `KiB`, `MiB`, etc. (ocaml/dune#8618,
  @Alizter)

- No longer force colors for OCaml 4.03 and 4.04 (ocaml/dune#8778, @rgrinberg)

- Introduce new experimental odoc rules (ocaml/dune#8803, @jonjudlam)

- Introduce the `runtest_alias` field to the `cram` stanza. This allows
  removing default `runtest` alias from tests. (@rgrinberg, ocaml/dune#8887)

- Do not ignore libraries named `bigarray` when they are defined in conjunction
  with OCaml 5.0 (ocaml/dune#8902, fixes ocaml/dune#8901, @rgrinberg)

- Dependencies in the copying sandbox are now writeable (ocaml/dune#8920, @rgrinberg)

- Absent packages shouldn't prevent all rules from being loaded (ocaml/dune#8948, fixes
  ocaml/dune#8630, @rgrinberg)

- Correctly determine the stanza of menhir modules when `(include_subdirs
  qualified)` is enabled (@rgrinberg, ocaml/dune#8949, fixes ocaml/dune#7610)

- Display cache location in Dune log (ocaml/dune#8974, @nojb)

- Re-run actions whenever `(expand_aliases_in_sandbox)` changes (ocaml/dune#8990,
  @rgrinberg)

- Rules that only use internal dune actions (`write-file`, `echo`, etc.) can
  now be sandboxed. (ocaml/dune#9041, fixes ocaml/dune#8854, @rgrinberg)

- Do not re-run rules when their location changes (ocaml/dune#9052, @rgrinberg)

- Correctly ignore `bigarray` on recent version of OCaml (ocaml/dune#9076, @rgrinberg)

- Add `test_` prefix to default test name in `dune init project` (ocaml/dune#9257, fixes
  ocaml/dune#9131, @9sako6)

- Add `coqdoc_flags` field to `coq` field of `env` stanza allowing the setting
  of workspace-wide defaults for `coqdoc_flags`. (ocaml/dune#9280, fixes ocaml/dune#9139, @Alizter)

- [coq rules] Be more tolerant when coqc --print-version / --config don't work
  properly, and fallback to a reasonable default. This fixes problems when
  building Coq projects with `(stdlib no)` and likely other cases. (ocaml/dune#8966, fix
  ocaml/dune#8958, @Alizter, reported by Lasse Blaauwbroek)

- Dune will now run at a lower framerate of 15 fps rather than 60 when
  `INSIDE_EMACS`. (ocaml/dune#8812, @Alizter)

- dune-build-info: when `version=""` is found in a `META` file, we now return
  `None` as a version string (ocaml/dune#9177, @emillon)

- Dune can now be built and installed on Haiku (ocaml/dune#8795, fix ocaml/dune#8551, @Alizter)

- Mark installed directories in `dune-package` files. This fixes `(package)`
  dependencies against packages that contain such directories. (ocaml/dune#8953, fixes
  ocaml/dune#8915, @emillon)