Setuptools

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Changes
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* 2692: Globs are now sorted in 'license_files' restoring reproducibility by eliminating variance from disk order.
* 2714: Update to distutils at pypa/distutilse2627b7.
* 2715: Removed reliance on deprecated ssl.match_hostname by removing the ssl support. Now any index operations rely on the native SSL implementation.

Documentation changes
---------------------
* 2604: Revamped the backward/cross tool compatibility section to remove
some confusion.
Add some examples and the version since when ``entry_points`` are
supported in declarative configuration.
Tried to make the reading flow a bit leaner, gather some information
that were a bit dispersed.

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Breaking Changes
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* 2645: License files excluded via the ``MANIFEST.in`` but matched by either
the ``license_file`` (deprecated) or ``license_files`` options,
will be nevertheless included in the source distribution. - by :user:`cdce8p`

Changes
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* 2628: Write long description in message payload of PKG-INFO file. - by :user:`cdce8p`
* 2645: Added ``License-File`` (multiple) to the output package metadata.
The field will contain the path of a license file, matched by the
``license_file`` (deprecated) and ``license_files`` options,
relative to ``.dist-info``. - by :user:`cdce8p`
* 2678: Moved Setuptools' own entry points into declarative config.
* 2680: Vendored :pypi:`more_itertools` for Setuptools.
* 2681: Setuptools own setup.py no longer declares setup_requires, but instead expects wheel to be installed as declared by pyproject.toml.

Misc
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* 2650: Updated the docs build tooling to support the latest version of
Towncrier and show the previews of not-yet-released setuptools versions
in the changelog -- :user:`webknjaz`

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Changes
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* 2640: Fixed handling of multiline license strings. - by :user:`cdce8p`
* 2641: Setuptools will now always try to use the latest supported
metadata version for ``PKG-INFO``. - by :user:`cdce8p`

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Changes
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* 2653: Incorporated assorted changes from pypa/distutils.
* 2657: Adopted docs from distutils.
* 2663: Added Visual Studio Express 2017 support -- by :user:`dofuuz`

Misc
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* 2644: Fixed ``DeprecationWarning`` due to ``threading.Thread.setDaemon`` in tests -- by :user:`tirkarthi`
* 2654: Made the changelog generator compatible
with Towncrier >= 19.9 -- :user:`webknjaz`
* 2664: Relax the deprecation message in the distutils hack.

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Deprecations
------------
* 2620: The ``license_file`` option is now marked as deprecated.
Use ``license_files`` instead. -- by :user:`cdce8p`

Breaking Changes
----------------
* 2620: If neither ``license_file`` nor ``license_files`` is specified, the ``sdist``
option will now auto-include files that match the following patterns:
``LICEN[CS]E*``, ``COPYING*``, ``NOTICE*``, ``AUTHORS*``.
This matches the behavior of ``bdist_wheel``. -- by :user:`cdce8p`

Changes
-------
* 2620: The ``license_file`` and ``license_files`` options now support glob patterns. -- by :user:`cdce8p`
* 2632: Implemented ``VendorImporter.find_spec()`` method to get rid
of ``ImportWarning`` that Python 3.10 emits when only the old-style
importer hooks are present -- by :user:`webknjaz`

Documentation changes
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* 2620: Added documentation for the ``license_files`` option. -- by :user:`cdce8p`

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Breaking Changes
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* 2566: Remove the deprecated ``bdist_wininst`` command. Binary packages should be built as wheels instead. -- by :user:`hroncok`