Released 13 November 2022
Highlights:
* Changed: renamed `--readonly` to `--read-only` in CLI arguments.
* Changed: renamed `readonly` to `read_only` in `checksum()` method.
* Improved: Python 3 type annotations.
* Removed: Python 2 support.
* Improved: project set-up.
The full list of commits can be found [here](https://github.com/basilfx/lpc_checksum/compare/v2.2.0...v3.0.0).