- Re-synced implementation with CPython 3.8, removing the compatibility code introduced for compatibility with older Pythons. - Require Python 3.8 or later.
4.0.0
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Require Python 3.7 or later.
Incorporate Tidelift sponsorship.
3.7.0
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4: Add ``singledispatchmethod`` from Python 3.8.
Incorporate minor changes from Python 3.8.
3.6.2
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3 and bpo-23572: Fix behavior when metaclass implements bool.
3.6.1
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Fixed DeprecationWarnings referring to members from ``collections.abc`` referenced from ``collections``.
3.6.0
======
1: Added support for annotations as found on Python 3.7.