- make the pyproject.toml fully PEP 621 compliant PR #19
- expose a build_ext subclass that can be re-used in other projects PR #16
- use a PEP 517 compatible install procedure PR #16
- do not access directly ob_type on PyObject use Py_TYPE
- drop Python 2 support PR #3
- add documentation and tests PR #3
- add cast_py_tp_doc to cast "cleanly" to void* for use in PyType_Slot
- update license header
- fix Python 3 int check
- first release