3.17.0~alpha0

CHANGES:

Fixed

• Show the context name for errors happening in non-default contexts.
  (#10414, fixes #10378, @jchavarri)

• Correctly declare dependencies of indexes so that they are rebuilt when
  needed. (#10623, @voodoos)

• Don't depend on coq-stdlib being installed when expanding variables
  of the coq.version family (#10631, fixes #10629, @gares)

• Error out if no files are found when using copy_files. (#10649, @jchavarri)

• Re_export dune-section private library in the dune-site library stanza,
  in order to avoid failure when generating and building sites modules
  with implicit_transitive_deps = false. (#10650, fixes #9661, @MA0100)

• Expect test fixes: support multiple modes and fix dependencies when there is
  a custom runner (#10671, @vouillon)

• In a (library) stanza with (extra_objects) and (foreign_stubs), avoid
  double linking the extra object files in the final executable.
  (#10783, fixes #10785, @nojb)

• Map (re_export) library dependencies to the exports field in META files,
  and vice-versa. This field was proposed in to
  https://discuss.ocaml.org/t/proposal-a-new-exports-field-in-findlib-meta-files/13947.
  The field is included in Dune-generated META files only when the Dune lang
  version is >= 3.17.
  (#10831, fixes #10830, @nojb)

• Fix staged pps preprocessors on Windows (which were not working at all
  previously) (#10869, fixes #10867, @nojb)

• Fix dune describe when an executable is disabled with enabled_if.
  (#10881, fixes #10779, @moyodiallo)

• Fix an issue where C stubs would be rebuilt whenever the stderr of Dune was
  redirected. (#10883, fixes #10882, @nojb)

• Format long lists in s-expressions to fill the line instead of formatting
  them in a vertical way (#10892, fixes #10860, @nojb)

• Fix the URL opened by the command dune ocaml doc. (#10897, @gridbugs)

• Fix the file referred to in the error/warning message displayed due to the
  dune configuration version not supporting a particular configuration
  stanza in use. (#10923, @H-ANSEN)

• Fix enabled_if when it uses env variable. (#10936, fixes #10905, @moyodiallo)

• Fix exec -w for relative paths with --root argument (#10982, @gridbugs)

• Do not ignore the (locks ..) field in the test and tests stanza
  (#11081, @rgrinberg)

• Tolerate files without extension when generating merlin rules.
  (#11128, @anmonteiro)

Added

• Make Merlin/OCaml-LSP aware of "hidden" dependencies used by
  (implicit_transitive_deps false) via the -H compiler flag. (#10535, @voodoos)

• Add support for the -H flag (introduced in OCaml compiler 5.2) in dune
  (requires lang versions 3.17). This adaptation gives
  the correct semantics for (implicit_transitive_deps false).
  (#10644, fixes #9333, ocsigen/tyxml#274, #2733, #4963, @MA0100)

• Add support for specifying Gitlab organization repositories in source
  stanzas (#10766, fixes #6723, @H-ANSEN)

• New option to control jsoo sourcemap generation in env and executable stanza
  (#10777, fixes #10673, @hhugo)

• One can now control jsoo compilation_mode inside an executable stanza
  (#10777, fixes #10673, @hhugo)

• Add support for specifying default values of the authors, maintainers, and
  license stanzas of the dune-project file via the dune config file. Default
  values are set using the (project_defaults) stanza (#10835, @H-ANSEN)

• Add names to source tree events in performance traces (#10884, @jchavarri)

• Add codeberg as an option for defining project sources in dune-project
  files. For example, (source (codeberg user/repo)). (#10904, @nlordell)

• dune runtest can now run individual tests with dune runtest mytest.t
  (#11041, @Alizter).

• Wasm_of_ocaml support (#11093, @vouillon)

• Add a coqdep_flags field to the coq field of the env stanza, and to the coq.theory stanza, allowing to configure coqdep flags.
  (#11094, @rlepigre)

Changed

• Remove all remnants of the experimental patch-back-source-tree. (#10771,
  @rgrinberg)

• Change the preset value for author and maintainer fields in the
  dune-project file to encourage including emails. (#10848, @punchagan)

• Tweak the preset value for tags in the dune-project file to hint at topics
  not having a special meaning. (#10849, @punchagan)

• Change some colors to improve readability in light-mode terminals
  (#10890, @gridbugs)

• Forward the linkall flag to jsoo in whole program compilation as well (#10935, @hhugo)

• Configurator uses pkgconf as pkg-config implementation when available
  and forwards it the target of ocamlc -config. (#10937, @pirbo)

• Enable Dune cache by default. Add a new Dune cache setting
  enabled-except-user-rules, which enables the Dune cache, but excludes
  user-written rules from it. This is a conservative choice that can avoid
  breaking rules whose dependencies are not correctly specified. This is the
  current default. (#10944, #10710, @nojb, @ElectreAAS)

• Do not add dune dependency in dune-project when creating projects with
  dune init proj. The Dune dependency is implicitely added when generating
  opam files (#11129, @Leonidas-from-XIV)