* Project now uses PEP 420 (native) namespace package for ``backports`` package.
5.1.0
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* Synced with Python 3.10.0. * Packaging refresh. * Tests now run on Python 3.10. * Modernized code relying on Python 3.6.
5.0.2
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* Packaging refresh.
5.0.1
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* Synced with Python 3.9.0. * Refreshed package metadata.
5.0.0
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* Require Python 3.6 or later. For Python 2.6-3.5, use ``configparser < 5`` (selection should be automatic when installed using pip 9 from PyPI). The ``4.x`` line remains supported for bug fixes but will no longer be updated for future releases.
4.0.2
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* Re-release after pulling 4.0.0 and 4.0.1 due to 45.