* Make the package much faster by using ``importlib.metadata`` to get installed versions, rather than ``pip freeze``. This saves most of the import time (local benchmark: 200ms down to 10ms) and halves the run time (230ms to 100ms).
2.5.0
------------------
* Support Python 3.10.
2.4.0
------------------
* Add type hints.
2.3.0
------------------
* Normalize package names from underscores to hyphens, just like pip does.
* Stop distributing tests to reduce package size. Tests are not intended to be run outside of the tox setup in the repository. Repackagers can use GitHub's tarballs per tag.
2.2.1
------------------
* Fix to ignore lines that represent arguments to pip, such as ``--find-links``.
2.2.0
------------------
* Drop Python 3.5 support. * Support Python 3.9. * Move license from ISC to MIT License.