CHANGES:

• Allow running $ dune exec in watch mode (with the -w flag). In watch mode, $ dune exec the executed binary whenever it is recompiled. (#6966, @gridbugs)

• coqdep is now called once per theory, instead of one time per Coq file. This should significantly speed up some builds, as coqdep startup time is often heavy (#7048, @Alizter, @ejgallego)

• Add map_workspace_root dune-project stanza to allow disabling of mapping of workspace root to /workspace_root. (#6988, fixes #6929, @richardlford)

• Fix handling of support files generated by odoc. (#6913, @jonludlam)

• Fix parsing of OCaml errors that contain code excerpts with ... in them. (#7008, @rgrinberg)

• Pre-emptively clear screen in watch mode (#6987, fixes #6884, @rgrinberg)

• Fix cross compilation configuration when a context with targets is itself a host of another context (#6958, fixes #6843, @rgrinberg)

• Fix parsing of the <= operator in blang expressions of dune files. Previously, the operator would be interpreted as <. (#6928, @tatchi)

• Fix --trace-file output. Dune now emits a single complete event for every executed process. Unterminated async events are no longer written. (#6892, @rgrinberg)

• Fix preprocessing with staged_pps (#6748, fixes #6644, @rgrinberg)

• Use colored output with MDX when Dune colors are enabled. (#6462, @MisterDA)

• Make dune describe workspace return consistent dependencies for executables and for libraries. By default, compile-time dependencies towards PPX-rewriters are from now not taken into account (but runtime dependencies always are). Compile-time dependencies towards PPX-rewriters can be taken into account by providing the --with-pps flag. (#6727, fixes #6486, @esope)

• Print missing newline after $ dune exec. (#6821, fixes #6700, @rgrinberg, @Alizter)

• Fix binary corruption when installing or promoting in parallel (#6669, fixes #6668, @edwintorok)

• Use colored output with GCC and Clang when compiling C stubs. The flag -fdiagnostics-color=always is added to the :standard set of flags. (#4083, @MisterDA)

• Fix the parsing of decimal and hexadecimal escape literals in dune, dune-package, and other dune s-expression based files (#6710, @shym)

• Report an error if dune init ... would create a "dune" file in a location which already contains a "dune" directory (#6705, @gridbugs)

• Fix the parsing of alerts. They will now show up in diagnostics correctly. (#6678, @rginberg)

• Fix the compilation of modules generated at link time when implicit_transitive_deps is enabled (#6642, @rgrinberg)

• Allow $ dune utop to load libraries defined in data only directories defined using (subdir ..) (#6631, @rgrinberg)

• Format dune files when they are named dune-file. This occurs when we enable the alternative file names project option. (#6566, @rgrinberg)

• Move $ dune ocaml-merlin -dump-config=$dir to $ dune ocaml merlin dump-config $dir. (#6547, @rgrinberg)

• Allow compilation rules to be impacted by (env ..) stanzas that modify the environment or set binaries. (#6527, @rgrinberg)

• Coq native mode is now automatically detected by Dune starting with Coq lang 0.7. (mode native) has been deprecated in favour of detection from the configuration of Coq. (#6409, @Alizter)

• Print "Leaving Directory" whenever "Entering Directory" is printed. (#6419, fixes #138, @cpitclaudel, @rgrinberg)

• Allow $ dune ocaml dump-dot-merlin to run in watch mode. Also this command shouldn't print "Entering Directory" mesages. (#6497, @rgrinberg)

• dune clean should no longer fail under Windows due to the inability to remove the .lock file. Also, bring the implementation of the global lock under Windows closer to that of Unix. (#6523, @nojb)

• Remove "Entering Directory" messages for $ dune install. (#6513, @rgrinberg)

• Stop passing -q flag in dune coq top, which allows for .coqrc to be loaded. (#6848, fixes #6847, @Alizter)

• Fix missing dependencies when detecting the kind of C compiler we're using (#6610, fixes #6415, @emillon)

• Allow (include_subdirs qualified) for OCaml projects. (#6594, fixes #1084, @rgrinberg)

• Accurately determine merlin configuration for all sources selected with copy# and copy_files#. The old heuristic of looking for a module in parent directories is removed (#6594, @rgrinberg)

• Fix inline tests with js_of_ocaml and whole program compilation mode enabled (#6645, @hhugo)

• Fix js_of_ocaml separate compilation rules when --enable=effects ,--enable=use-js-string or --toplevel is used. (#6714, #6828, #6920, @hhugo)

• Fix js_of_ocaml separate compilation in presence of linkall (#6832, #6916, @hhugo)

• Remove spurious build dir created when running dune init proj ... (#6707, fixes #5429, @gridbugs)

• Allow --sandbox to affect ocamldep invocations. Previously, they were wrongly marked as incompatible (#6749, @rgrinberg)

• Validate the command line arguments for $ dune ocaml top-module. This command requires one positional argument (#6796, fixes #6793, @rgrinberg)

• Add a dune cache size command for displaying the size of the cache (#6638, @Alizter)

• Fix dependency cycle when installing files to the bin section with glob_files (#6764, fixes #6708, @gridbugs)

• Handle "Too many links" errors when using Dune cache on Windows (#6993, @nojb)

• Allow the cinaps stanza to set a custom alias. By default, if the alias is not set then the cinaps actions will be attached to both @cinaps and @runtest (#6991, @rgrinberg)

• Add (using ctypes 0.3). When used, paths in (ctypes) are interpreted relative to where the stanza is defined. (#6883, fixes #5325, @emillon)

• Auto-detect dune-workspace files as dune files in Emacs (#7061, @ilankri)

• Add native support for polling mode on Windows (#7010, @yams-yams, @nojb)