3.12.0

CHANGES:

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

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

• No longer force colors for OCaml 4.03 and 4.04 (#8778, @rgrinberg)

• Introduce new experimental odoc rules (#8803, @jonjudlam)

• Introduce the runtest_alias field to the cram stanza. This allows
  removing default runtest alias from tests. (@rgrinberg, #8887)

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

• Dependencies in the copying sandbox are now writeable (#8920, @rgrinberg)

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

• Correctly determine the stanza of menhir modules when (include_subdirs qualified) is enabled (@rgrinberg, #8949, fixes #7610)

• Display cache location in Dune log (#8974, @nojb)

• Re-run actions whenever (expand_aliases_in_sandbox) changes (#8990,
  @rgrinberg)

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

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

• Correctly ignore bigarray on recent version of OCaml (#9076, @rgrinberg)

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

• Add coqdoc_flags field to coq field of env stanza allowing the setting
  of workspace-wide defaults for coqdoc_flags. (#9280, fixes #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. (#8966, fix
  #8958, @Alizter, reported by Lasse Blaauwbroek)

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

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

• Dune can now be built and installed on Haiku (#8795, fix #8551, @Alizter)

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