[ANN] Dune 3.24

Ecosystem
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The Dune team is pleased to announce the release of dune 3.24.0.

Highlights include the following:

  • Dune package management now uses the relocatable compiler by default, for all supported compiler versions. This brings a massive speedup to workspace setup in the many cases where built compiler versions can be reused. (ocaml/dune#14357, @Alizter)

  • Directory targets are now generally available (ocaml/dune#14579), allowing tools to produce entire directory trees as targets. See the documentation on directory targets for details.

  • Path handling has been refined, improving the consistency of paths across platforms (ocaml/dune#14278 and ocaml/dune#14278) and using a more consistent and disciplined location for %{bin:NAME} variable expansions (ocaml/dune#14432).

  • Path-valued percent forms (%{bin:...}, %{dep:...}, %{path:...}, and friends) now expand same-directory paths with a leading ./, so that shells like bash in (bash ...) and (system ...) actions execute them directly instead of looking them up in PATH (ocaml/dune#15156). This is a breaking change for configurations that were handling paths naively, and neglected to normalize the representation before using it test fixtures or for constructing other strings.

  • The deprecated lang coq has been removed, as scheduled, superseded by lang rocq. See ocaml/dune#12788 for details.

See the full changelog for all new features and fixes, and for attribution to the contributors who made it all possible. Thank you, contributors!

If you encounter a problem with this release, please report it in our issue tracker.

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