* Splits out protocol checking into its own fancy library: [``numerary``](https://github.com/posita/numerary/)!
* Is now [available on PyPI as ``dyce``_](https://pypi.org/project/dyce/), thanks to the generosity of [David Eyk](https://eykd.net/about/)!
* Introduces experimental generic [``walk``][dyce.r.walk] function and supporting visitor data structures.
* Uses ``pygraphviz`` to automate class diagram generation.
  (See the note on special considerations for regenerating class diagrams in the [hacking quick start](contrib.md#hacking-quick-start).)
* Introduces experimental use of ``numpy`` for RNG, if present.
* Migrates to using ``pyproject.toml`` and ``setup.cfg``.
* Adds missing [``py.typed`` to ensure clients get type checking](https://www.python.org/dev/peps/pep-0561/).
  (Whoops.)