4.4
* Detect condition where declarative config will cause
errors and emit a UserWarning with guidance on necessary
actions.
4.3.1
* Re-release of 4.2 to supersede the 4.3 release which
proved to be backward-incompatible in that it requires
setuptools 30.4 or possibly later (to install). In the future, a
backward-incompatible release will re-release these changes.
For projects including pytest-runner, particularly as
setup_requires, if support for older setuptools is required,
please pin to pytest-runner < 5.