3.3.0

CHANGES:

• Sandbox preprocessing, lint, and dialect rules by default. All these rules
  now require precise dependency specifications (#5807, @rgrinberg)

• Allow list expansion in the pps specification for preprocessing (#5820,
  @Firobe)

• Add warnings 67-69 to dune's default set of warnings. These are warnings of
  the form "unused X.." (#5844, @rgrinbreg)

• Introduce project "composition" for coq theories. Coq theories in separate
  projects can now refer to each other when in the same workspace (#5784,
  @Alitzer, @rgrinberg)

• Fix hint message for data_only_dirs that wrongly mentions the unknown
  constructor data_only (#5803, @lambdaxdotx)

• Fix creating sandbox directory trees by getting rid of buggy memoization
  (@5794, @rgrinberg, @snowleopard)

• Handle directory dependencies in sandboxed rules. Previously, the parents of
  these directory dependencies weren't created. (#5754, @rgrinberg)

• Set the exit code to 130 when dune is terminated with a signal (#5769, fixes
  #5757)

• Support new locations of unix, str, dynlink in OCaml >= 5.0 (#5582, @dra27)

• The coq.theory stanza now produces rules for running coqdoc. Given a
  theory named mytheory, the directory targets mytheory.html/ and
  mytheory.tex/ or additionally the aliases @doc and @doc-latex will
  build the HTML and LaTeX documentation repsectively. (#5695, fixes #3760,
  @Alizter)

• Coq theories marked as (boot) cannot depend on other theories
  (#5867, @ejgallego)

• Ignore bigarray in (libraries) with OCaml >= 5.0. (#5526, fixes #5494,
  @moyodiallo)

• Start with :standard when building the ctypes generated foreign stubs so that
  we include important compiler flags, such as -fPIC (#5816, fixes #5809).

3.2.0

CHANGES:

• Fixed dune describe workspace --with-deps so that it correctly
  handles Reason files, as well as files any other dialect. (#5701, @esope)

• Disable alerts when compiling code in vendored directories (#5683,
  @NathanReb)

• Fixed dune describe --with-deps, that crashed when some
  preprocessing was required in a dune file using per_module.
  (#5682, fixes #5680, @esope)

• Add $ dune describe pp to print the preprocssed ast of sources. (#5615,
  fixes #4470, @cannorin)

• Report dune file evaluation errors concurrently. In the same way we report
  build errors. (#5655, @rgrinberg)

• Watch mode now default to clearing the terminal on rebuild (#5636, fixes,
  #5216, @rgrinberg)

• The output of jobs that finished but were cancelled is now omitted. (#5631,
  fixes #5482, @rgrinberg)

• Allows to configure all the default destination directories with ./configure
  (adds bin, sbin, data, libexec). Use OPAM_SWITCH_PREFIX instead of
  calling the opam binaries in dune install. Fix handling of multiple
  libdir in ./configure for handling /usr/lib/ocaml/ and
  /usr/local/lib/ocaml. In dune install forbid relative directories in
  libdir, docdir and others specific directory setting because their handling
  was inconsistent (#5516, fixes #3978 and #5455, @bobot)

• --terminal-persistence=clear-on-rebuild will no longer destroy scrollback
  on some terminals (#5646, @rgrinberg)

• Add a fmt command as a shortcut of dune build @fmt --auto-promote (#5574,
  @tmattio)

• Watch mode now tracks copied external files, external directories for
  dependencies, dune files in OCaml syntax, files used by include stanzas,
  dune-project, opam files, libraries builtin with compiler, and foreign
  sources (#5627, #5645, #5652, #5656, #5672, #5691, #5722, fixes #5331,
  @rgrinberg)

• Improve metrics for cram tests. Include test names in the event and add a
  category for cram tests (#5626, @rgrinberg)

• Allow specifying multiple licenses in project file (#5579, fixes #5574,
  @liyishuai)

• Match glob_files only against files in external directories (#5614, fixes
  #5540, @rgrinberg)

• Add pid's to chrome trace output (#5617, @rgrinberg)

• Fix race when creating local cache directory (#5613, fixes #5461, @rgrinberg)

• Add not to boolean expressions (#5610, fix #5503, @rgrinberg)

• Fix relative dependencies outside the workspace (#4035, fixes #5572, @bobot)

• Allow to specify --prefix via the environment variable
  DUNE_INSTALL_PREFIX (#5589, @vapourismo)

• Dune-site.plugin: add support for archive(native|byte, plugin) used in the
  wild before findlib documented plugin(native|byte) in 2015 (#5518, @bobot)

• Fix a bug where Dune would not correctly interpret META files in alternative
  layout (ie when the META file is named META.$pkg). The Llvm bindings were
  affected by this issue. (#5619, fixes #5616, @nojb)

• Support (binaries) in (env) in dune-workspace files (#5560, fix #5555,
  @emillon)

• (mdx) stanza: add support for (locks). (#5628, fixes #5489, @emillon)

• (mdx) stanza: support including files in different directories using relative
  paths, and provide better error messages when paths are invalid (#5703, #5704,
  fixes #5596, @emillon)

• Fix ctypes rules for external lib names which aren't valid ocaml names
  (#5667, fixes #5511, @Khady)

3.1.1

CHANGES:

• Fix build on Cygwin. (#5593, fixes 5577, @nojb)

• Fix execution of (system ..) actions on Windows. (#5593, fixes #5523,
  @nojb)

3.1.0

CHANGES:

• Add sourcehut as an option for defining project sources in dune-project
  files. For example, (source (sourcehut user/repo)). (#5564, @rgrinberg)

• Add dune coq top command for running a Coq toplevel (#5457, @rlepigre)

• Fix dune exec dumping database in wrong directory (#5544, @bobot)

• Always output absolute paths for locations in RPC reported diagnostics
  (#5539, @rgrinberg)

• Add (deps <deps>) in ctype field (#5346, @bobot)

• Add (include <file>) constructor to dependency specifications. This can be
  used to introduce dynamic dependencies (#5442, @anmonteiro)

• Ensure that dune describe computes a transitively closed set of
  libraries (#5395, @esope)

• Add direct dependencies to $ dune describe output (#5412, @esope)

• Show auto-detected concurrency on Windows too (#5502, @MisterDA)

• Fix operations that remove folders with absolute path. This happens when
  using esy (#5507, @EduardoRFS)

• Dune will not fail if some directories are non-empty when uninstalling.
  (#5543, fixes #5542, @nojb)

• coqdep now depends only on the filesystem layout of the .v files,
  and not on their contents (#5547, helps with #5100, @ejgallego)

• The mdx stanza 0.2 can now be used with (implicit_transitive_deps false)
  (#5558, fixes #5499, @emillon)

• Fix missing parenthesis in printing of corresponding terminal command for
  (with-outputs-to ) (#5551, fixes #5546, @Alizter)

3.0.3

CHANGES:

• Do not enable warnings 63-70 by default (#5476, fixes #5464, @rgrinberg)

• Allow %{read-lines} to introduce dynamic dependencies like %{read}. (#5440,
  @anmonteiro)

• Look up gmake before make (#5474, fixes #5470, @rgrinberg)

• Handle empty output from getconf (#5473 fixes #5471, @mndrix)

• Depend on any provided foreign_archives for ctypes stub generation (#5475,
  @mbacarella)

3.0.2

CHANGES:

• Fix digest computation bug introduced in 3.0.1 (#5451, @rgrinberg)

3.0.1

CHANGES:

• Fix compilation on MacOS SDK < 10.13. The native watch mode is disabled in
  such instances (#5431 fix #5430, @rgrinberg)

• Do no add workspace_root to BUILD_PATH_PREFIX_MAP for projects before 3.0
  (5448, @rgrinberg)

• Fix performance regression in incremental builds (#5439, @snowleopard)

3.0.0

CHANGES:

• Remove uchar and seq dummy ocamlfind libraries from dune's builtin
  library database (#5260, @kit-ty-kate)

• Add a DUNE_DIFF_COMMAND environment variable to match --diff-command
  command-line parameter (@raphael-proust, fix #5369, #5375)

• Add support for odoc-link rules (#5045, @lubegasimon)

• Dune will no longer generate documentation for hidden modules (#5045,
  @lubegasimon)

• Parse the native_pack_linker field of ocamlc -config (#5281, @TheLortex)

• Fix plugins with dot in the name (#5182, @bobot, review @rgrinberg)

• Don't generate the dune-site build part when not needed (#4861, @bobot,
  review @kit-ty-kate)

• Fix installation of implementations of virtual libraries (#5150, fix #3636,
  @rgrinberg)

• Run tests in all modes defined. Previously, jsoo was excluded. (@hhugo,
  #5049, fix #4951)

• Allow to configure the alias to run the jsoo tests (@hhugo, #5049, #4999)

• Set jsoo compilation flags in the env stanza (@hhugo, #5049, #1613)

• Allow to configure jsoo separate compilation in the env stanza. Previously,
  it was hard coded to always be enabled in the dev profile. (@hhugo, #5049,
  fix #970)

• Fix build-info version in jsoo executables (@hhugo, #5049, fix #4444)

• Pass -no-check-prims when building bytecode for jsoo (@hhugo, #5049, #4027)

• Fix jsoo builds when dynamically linked foreign archives are disabled
  (@hhugo, #5049)

• Disallow empty packages starting from 3.0. Empty packages may be
  re-enabled by adding the (allow_empty) to the package stanza in
  the dune-project file. (#4867, fix #2882, @kit-ty-kate, @rgrinberg)

• Add link_flags field to the executable field of inline_tests (#5088,
  fix #1530, @jvillard)

• In watch mode, use fsevents instead of fswatch on OSX (#4937, #4990, fixes
  #4896 @rgrinberg)

• Remove inotifywait watch mode backend on Linux. We now use the inotify API
  exclusively (#4941, @rgrinberg)

• Report cycles between virtual libraries and their implementation (#5050,
  fixes #2896, @rgrinberg)

• Warn when lang versions have an ignored suffix. (lang dune 2.3.4) or (lang dune 2.3suffix) were silently parsed as 2.3 and we know suggest to remove
  the prefix. (#5040, @emillon)

• Allow users to specify dynamic dependencies in rules. For example (deps %{read:foo.gen}) (#4662, fixes #4089, @jeremiedimino)

• Sandbox infer rules for menhir. Fixes possible "inconsistent assumptions"
  errors (#5015, @rgrinberg)

• Experimental support for ctypes stubs (#3905, fixes #135, @mbacarella)

• Fix interpretation of binaries defined in the env stanza. Binaries
  defined in x/dune wouldn't be visible in `x/*/**/dune. (#4975, fixes #4976,
  @Leonidas-from-XIV, @rgrinberg)

• Do not list private libraries in package listings (#4945, fixes #4799,
  @rgrinberg)

• Allow spaces in cram test paths (#4980, fixes #4162, @rgrinberg)

• Improve error handling of misbehaving cram scripts. (#4981, fix #4230,
  @rgrinberg)

• Fix foreign_stubs inside a tests stanza. Previously, dune would crash
  when this field was present (#4942, fix #4946, @rgrinberg)

• Add the enabled_if field to inline_tests within the library stanza.
  This allows us to disable executing the inline tests while still allowing for
  compilation (#4939, @rgrinberg)

• Generate a dune-project when initializing projects with dune init proj ...
  (#4881, closes #4367, @shonfeder)

• Allow spaces in the directory argument of the subdir stanza (#4943, fixes
  #4907, @rgrinberg)

• Add a %{toolchain} expansion variable (#4899, fixes #3949, @rgrinberg)

• Include dependencies of executables when creating toplevels (either dune top or dune utop) (#4882, fixes #4872, @Gopiancode)

• Fixes opam META file requires entry for private libs (#4841, fixes #4839, @toots)

• Fixes dune exec not adding .exe on Windows (#4371, fixes #3322, @MisterDA)

• Allow multiple cinaps stanzas in the same directory (#4460, @rgrinberg)

• Fix $ dune subst in empty git repositories (#4441, fixes #3619, @rgrinberg)

• Improve interpretation of ansi escape sequence when spawning processes (#4408,
  fixes #2665, @rgrinberg)

• Allow (package pkg) in dependencies even if pkg is an installed package
  (#4170, @bobot)

• Allow %{version:pkg} to work for external packages (#4104, @kit-ty-kate)

• Add (glob_files_rec <dir>/<glob>) for globbing files recursively (#4176,
  @jeremiedimino)

• Automatically generate empty .mli files for executables and tests (#3768,
  fixes #3745, @craigfe)

• Add ocaml command subgroup for OCaml related commands such as utop, top,
  and merlin (#3936, @rgrinberg).

• Detect unknown variables more eagerly (#4184, @jeremiedimino)

• Improve location of variables and macros in error messages (#4205,
  @jeremiedimino)

• Auto-detect dune-project files as dune files in Emacs (#4222, @shonfeder)

• Dune no longer automatically create or edit dune-project files
  (#4239, fixes #4108, @jeremiedimino)

• Warn if dune-project is not found (fatal in release mode) (#5343, @emillon)

• Cleanup temporary files after running $ dune exec. (#4260, fixes #4243,
  @rgrinberg)

• Add a new subcommand dune ocaml dump-dot-merlin that prints a mix of all the
  merlin configuration of a directory (defaulting to the current directory) in
  the Merlin configuration syntax. (#4250, @voodoos)

• Enable cram tests by default (#4262, @rgrinberg)

• Drop support for opam 1.x (#4280, @jeremiedimino)

• Stop calling ocamlfind to determine the library search path or
  library installation directory. This makes the behavior of Dune
  simpler and more reproducible (#4281, @jeremiedimino)

• Remove the external-lib-deps command. This command was only
  approximative and the cost of maintainance was getting too high. We
  removed it to make room for new more important features (#4298,
  @jeremiedimino)

• It is now possible to define action dependencies through a chain
  of aliases. (#4303, @aalekseyev)

• If an .ml file is not used by an executable, Dune no longer report
  parsing error in this file (#4330, @jeremiedimino)

• Add support for sandboxing using hard links (#4360, Andrey Mokhov)

• Fix dune crash when subdir is an absolute path (#4366, @anmonteiro)

• Changed the implementation of actions attached to aliases, as in
  (rule (alias runtest) (action (run ./test))). A visible result for
  users is that such actions are now memoized for longer. For
  instance:

  $ echo '(rule (alias runtest) (action (echo "X=%{env:X=0}\n")))` > dune
  $ X=1 dune runtest
  X=1
  $ X=2 dune runtest
  X=2
  $ X=1 dune runtest
  

  Previously, Dune would have re-executed the action again at the last
  line. Now it remembers the result of the first execution.

• Fix a bug where dune would always re-run all actions that produce symlinks,
  even if their dependencies did not change. (#4405, @aalekseyev)

• Fix a bug that was causing Dune to re-hash generated files more
  often than necessary (#4419, @jeremiedimino)

• Fields allowed in the config file are now also allowed in the
  workspace file (#4426, @jeremiedimino)

• Add options to control how Dune should handle stdout and stderr of
  actions when then succeed. It is now possible to ask Dune to ignore
  the stdout of actions when they succeed or to request that the
  stderr of actions must be empty. This allows to reduce the noise of
  large builds (#4422, #4515, @jeremiedimino)

• The @all alias no longer depends directly on copies of files from the source
  directory (#4461, @nojb)

• Allow dune-file as an alternative file name for dune files (needs to be
  enabled in the dune-project file) (#4428, @nojb)

• Drop support for upgrading jbuilder projects (#4473, @jeremiedimino)

• Extend the environment variable BUILD_PATH_PREFIX_MAP to rewrite
  the root of the build dir (or sandbox) to /workspace_root (#4466,
  @jeremiedimino)

• Simplify the implementation of build cache. We stop using the cache daemon to
  access the cache and instead write to and read from it directly. The new cache
  implementation is based on Jenga's cache library, which was thoroughly tested
  on large-scale builds. Using Jenga's cache library will also make it easier
  for us to port Jenga's cloud cache to Dune. (#4443, #4465, Andrey Mokhov)

• More informative error message when Dune can't read a target that's supposed
  to be produced by the action. Old message is still produced on ENOENT, but other
  errors deserve a more detailed report. (#4501, @aalekseyev)

• Fixed a bug where a sandboxed action would fail if it declares no dependencies in
  its initial working directory or any directory it chdirs into. (#4509, @aalekseyev)

• Fix a crash when clearing temporary directories (#4489, #4529, Andrey Mokhov)

• Dune now memoizes all errors when running in the file-watching mode. This
  speeds up incremental rebuilds but may be inconvenient in rare cases, e.g. if
  a build action fails due to a spurious error, such as running out of memory.
  Right now, the only way to force such actions to be rebuilt is to restart
  Dune, which clears all memoized errors. In future, we would like to provide a
  way to rerun all actions failed due to errors without restarting the build,
  e.g. via a Dune RPC call. (#4522, Andrey Mokhov)

• Remove dune compute. It was broken and unused (#4540,
  @jeremiedimino)

• No longer generate an approximate merlin files when computing the
  ocaml flags fails, for instance because they include the contents of
  a file that failed to build. This was a niche feature and it was
  getting in the way of making Dune's core better. (#4607, @jeremiedimino)

• Make Dune display the progress indicator in all output modes except quiet
  (#4618, @aalekseyev)

• Report accurate process timing information in trace mode (enabled with
  --trace-file) (#4517, @rgrinberg)

• Do not log live_words and free_words in trace file. This allows using
  Gc.quick_stat which does not ...

2.9.3

CHANGES:

• Disable warning for deprecated Toploop functions used in dune files written in
  OCaml syntax. Restores 4.02 compatibility. (#5381, @nojb)

2.9.2

CHANGES:

• Fix missing -linkall flag when linking library dune-sites.plugin
  ( #4348, @Kakadu, @bobot, reported by @Kakadu)

• No longer reference deprecated Toploop functions when using dune files in
  OCaml syntax. (#4834, fixes #4830, @nojb)

• Use the stag format API to be compatible with OCaml 5.0 (#5351, @emillon).

• Fix post-processing of dune-package (fix #4389, @strub)