3.8.0

CHANGES:

• Fix string quoting in the json file written by --trace-file (#7773,
  @rleshchinskiy)

• Read pkg-config arguments from the PKG_CONFIG_ARGN environment variable
  (#1492, #7734, @anmonteiro)

• Correctly set MANPATH in dune exec. Previously, we would use the bin/
  directory of the context. (#7655, @rgrinberg)

• Allow overriding the ocaml binary with findlib configuration (#7648,
  @rgrinberg)

• merlin: ignore instrumentation settings for preprocessing. (#7606, fixes
  #7465, @Alizter)

• When a rule's action is interrupted, delete any leftover directory targets.
  This is consistent with how we treat file targets. (#7564, @rgrinberg)

• Fix plugin loading with findlib. The functionality was broken in 3.7.0.
  (#7556, @anmonteiro)

• Introduce a public_headers field on libraries. This field is like
  install_c_headers, but it allows to choose the extension and choose the
  paths for the installed headers. (#7512, @rgrinberg)

• Load the host context findlib.conf when cross-compiling (#7428, fixes
  #1701, @rgrinberg, @anmonteiro)

• Add a coqdoc_flags field to the coq.theory stanza allowing the user to
  pass extra arguments to coqdoc. (#7676, fixes #7954 @Alizter)

• Resolve ppx_runtime_libraries in the target context when cross compiling
  (#7450, fixes #2794, @anmonteiro)

• Use $PKG_CONFIG, when set, to find the pkg-config binary (#7469, fixes
  #2572, @anmonteiro)

• Modules that were declared in (modules_without_implementation),
  (private_modules) or (virtual_modules) but not declared in (modules)
  will cause Dune to emit a warning which will become an error in 3.9. (#7608,
  fixes #7026, @Alizter)

• Preliminary support for Coq compiled intefaces (.vos files) enabled via
  (mode vos) in coq.theory stanzas. This can be used in combination with
  dune coq top to obtain fast re-building of dependencies (with no checking
  of proofs) prior to stepping into a file. (#7406, @rlepigre)

• Fix dune crashing on MacOS in watch mode whenever $PATH contains $PWD
  (#7441, fixes #6907, @rgrinberg)

• Fix dune install when cross compiling (#7410, fixes #6191, @anmonteiro,
  @rizo)

• Find pps dependencies in the host context when cross-compiling, (#7410,
  fixes #4156, @anmonteiro)

• Dune in watch mode no longer builds concurrent rules in serial (#7395
  @rgrinberg, @jchavarri)

• Dune can now detect Coq theories from outside the workspace. This allows for
  composition with installed theories (not necessarily installed with Dune).
  (#7047, @Alizter, @ejgallego)

• dune coq top now correctly respects the project root when called from a
  subdirectory. However, absolute filenames passed to dune coq top are no
  longer supported (due to being buggy) (#7357, fixes #7344, @rlepigre and
  @Alizter)

• Added a --no-build option to dune coq top for avoiding rebuilds (#7380,
  fixes #7355, @Alizter)

• RPC: Ignore SIGPIPE when clients suddenly disconnect (#7299, #7319, fixes
  #6879, @rgrinberg)

• Always clean up the UI on exit. (#7271, fixes #7142 @rgrinberg)

• Bootstrap: remove reliance on shell. Previously, we'd use the shell to get
  the number of processors. (#7274, @rgrinberg)

• Bootstrap: correctly detect the number of processors by allowing nproc to be
  looked up in $PATH (#7272, @Alizter)

• Speed up file copying on macos by using clonefile when available
  (@rgrinberg, #7210)

• Adds support for loading plugins in toplevels (#6082, fixes #6081,
  @ivg, @richardlford)

• Support commands that output 8-bit and 24-bit colors in the terminal (#7188,
  @Alizter)

• Speed up rule generation for libraries and executables with many modules
  (#7187, @jchavarri)

• Add --watch-exclusions to Dune build options (#7216, @jonahbeckford)

• Do not re-render UI on every frame if the UI doesn't change (#7186, fix
  #7184, @rgrinberg)

• Make coq_db creation in scope lazy (@ejgallego, #7133)

• Non-user proccesses such as version control or config checking are now run
  silently. (#6994, fixes #4066, @Alizter)

• Add the --display-separate-messages flag to separate the error messages
  produced by commands with a blank line. (#6823, fixes #6158, @esope)

• Accept the Ordered Set Language for the modes field in library stanzas
  (#6611, @anmonteiro).

• dune install now respects --display quiet mode (#7116, fixes #4573, fixes
  #7106, @Alizter)

• Stub shared libraries (dllXXX_stubs.so) in Dune-installed libraries could not
  be used as dependencies of libraries in the workspace (eg when compiling to
  bytecode and/or Javascript). This is now fixed. (#7151, @nojb)

• Allow the main module of a library with (stdlib ...) to depend on other
  libraries (#7154, @anmonteiro).

• Bytecode executables built for JSOO are linked with -noautolink and no
  longer depend on the shared stubs of their dependent libraries (#7156, @nojb)

• Added a new user action (concurrent ) which is like (progn ) but runs the
  actions concurrently. (#6933, @Alizter)

• Allow (stdlib ...) to be used with (wrapped false) in library stanzas
  (#7139, @anmonteiro).

• Allow parallel execution of inline tests partitions (#7012, @hhugo)

• Support (link_flags ...) in (cinaps ...) stanza. (#7423, fixes #7416,
  @nojb)

• Allow (package ...) in any position within (rule ...) stanza (#7445,
  @Leonidas-from-XIV)

• Always include opam files in the generated .install file. Previously, it
  would not be included whenever (generate_opam_files true) was set and the
  .install file wasn't yet generated. (#7547, @rgrinberg)

• Fix regression where Merlin was unable to handle filenames with uppercase
  letters under Windows. (#7577, @nojb)

• On nix+macos, pass -f to the codesign hook to avoid errors when the binary
  is already signed (#7183, fixes #6265, @greedy)

• Fix bug where RPC clients built with dune-rpc-lwt would crash when closing
  their connection to the server (#7581, @gridbugs)

• Introduce mdx stanza 0.4 requiring mdx >= 2.3.0 which updates the default
  list of files to include *.mld files (#7582, @Leonidas-from-XIV)

• Fix RPC server on Windows (used for OCaml-LSP). (#7666, @nojb)

• Coq language versions less 0.8 are deprecated, and will be removed
  in an upcoming Dune version. All users are required to migrate to
  (coq lang 0.8) which provides the right semantics for theories
  that have been globally installed, such as those coming from opam
  (@ejgallego, @Alizter)

• Bump minimum version of the dune language for the melange syntax extension
  from 3.7 to 3.8 (#7665, @jchavarri)