In PR #13908 I implemented the previously-discussed new method of
creating the release notes: writing separate fragments and then
combining them at release time via towncrier. Towncrier requires a
PEP-508/PEP-517/PEP-518 pyproject.toml file for configuration, and
For what it's worth, pyproject.toml seems to have been adopted without much
friction in SciPy. In some CI runs in SciPy, we use something like "pip
wheel --no-build-isolation -v -v -v" to disable the isolation in any case.
I suppose NumPy is indeed even closer to the base of the ecosystem, but the
