- Update __init__.py.__version__ per Semantic Versioning.  Tests will fail
  until all version strings are the same.
- Check for outstanding 'to do' notes.
- Make sure Sphinx api_*.rst sources have autodoc directives for API additions.
- update recent changes in README.rst
- update copyright year
- Run code inspections.
- Run pytest cases.
- Run pytest cases with python warnings enabled. 'python -W once -m pytest'
- Run tests against Python 3 versions.
- Run pytest with statement and branch coverage.
- Run Sphinx doctest.
- Run readme_preview.py.
- Build Sphinx docs.
- Verify sdist archive contains at least all the files under version control.
- Run mypy against monotable and on test/test_examples.py.
- Run flake8

