Changelog
=========

5.0 (2023-02-09)
----------------

- Drop support for Python 2.7, 3.4, 3.5, 3.6.

- Add support for Python 3.8, 3.9, 3.10, 3.11.


4.1 (2018-10-05)
----------------

- Add support for Python 3.7.

4.0 (2017-05-17)
----------------

- Add `__contains__` support.

- Remove the Python 2-only C extension.

3.1 (2017-04-26)
----------------

- Add support for Python 3.6, drop support for Python 2.6.

3.0 (2016-04-03)
----------------

- Update compatibility to Python 3.4/3.5.

- Add a pure-Python implementation used for Python 3 and Pypy.

- Rewrote tests as unit tests.

2.13.0 (2010-03-30)
-------------------

- Released as separate package.
