3.4.0

CHANGES:

• Make dune describe correctly handle overlapping implementations
  for virtual libraries (#5971, fixes #5747, @esope)

• Building the @check alias should make sure the libraries and executables
  don't have dependency cycles (#5892, @rgrinberg)

• [ctypes] Add support for the errno parameter using the errno_policy field
  in the ctypes settings. (#5827, @droyo)

• Fix dune coq top when it is invoked on files from a subdirectory of the
  directory containing the associated stanza (#5784, fixes #5552, @ejgallego,
  @rlepigre, @Alizter)

• Fix hint when an invalid module name is found. (#5922, fixes #5273, @emillon)

• The (cat) action now supports several files. (#5928, fixes #5795, @emillon)

• Dune no longer uses shimmed META files for OCaml 5.x, solely using the ones
  installed by the compiler. (#5916, @dra27)

• Fix handling of the (deps) field in (test) stanzas when there is an
  .expected file. (#5952, #5951, fixes #5950, @emillon)

• Ignore insignificant filesystem events. This stops RPC in watch mode from
  flashing errors on insignificant file system events such as changes in the
  .git/ directory. (#5953, @rgrinberg)

• Fix parsing more error messages emitted by the OCaml compiler. In
  particular, messages where the excerpt line number started with a blank
  character were skipped. (#5981, @rgrinberg)

• env stanza: warn if some rules are ignored because they appear after a
  wildcard rule. (#5898, fixes #5886, @emillon)

• On Windows, XDG_CACHE_HOME is taken to be the FOLDERID_InternetCache if
  unset, and XDG_CONFIG_HOME and XDG_DATA_HOME are both taken to be
  FOLDERID_LocalAppData if unset. (#5943, fixes #5808, @nojb)