* Python 3.7+ is now required (212) (thanks adamjstewart!)
* Type hints (215 and others) (thanks adamjstewart!)
* Python 3.10 wheels, including osx-arm64 224
* Clean up libspatialindex C API mismatches 222 (thanks musicinmybrain!)
* Many doc updates, fixes, and type hints (thanks adamjstewart!) 212 221 217 215
* `__len__` method for index 194
* Prevent get_coordinate_pointers from mutating inputs 205 (thanks sjones94549!)
* linux-aarch64 wheels 183 (thanks odidev!)
* black (218) and flake8 (145) linting