Changes: https://github.com/adafruit/Adafruit_CircuitPython_LSM303DLH_Mag/compare/1.1.20...1.1.21
To use in CircuitPython, simply install the [Adafruit CircuitPython Bundle](https://circuitpython.org/libraries).
To use in CPython, `pip3 install adafruit-circuitpython-lsm303dlh-mag`.
Read the [docs](https://circuitpython.readthedocs.io/projects/lsm303dlh-mag/en/latest/) for info on how to use it.