v65.5.0
-------


Changes
^^^^^^^
* #3624: Fixed editable install for multi-module/no-package ``src``-layout projects.
* #3626: Minor refactorings to support distutils using stdlib logging module.

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3419: Updated the example version numbers to be compliant with PEP-440 on the "Specifying Your Project’s Version" page of the user guide.

Misc
^^^^
* #3569: Improved information about conflicting entries in the current working directory
  and editable install (in documentation and as an informational warning).
* #3576: Updated version of ``validate_pyproject``.


v65.4.1
-------


Misc
^^^^
* #3613: Fixed encoding errors in ``expand.StaticModule`` when system default encoding doesn't match expectations for source files.
* #3617: Merge with pypa/distutils@6852b20 including fix for pypa/distutils#181.


v65.4.0
-------


Changes
^^^^^^^
* #3609: Merge with pypa/distutils@d82d926 including support for DIST_EXTRA_CONFIG in pypa/distutils#177.


v65.3.0
-------


Changes
^^^^^^^
* #3547: Stop ``ConfigDiscovery.analyse_name`` from splatting the ``Distribution.name`` attribute -- by :user:`jeamland`

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3554: Changed requires to requests in the pyproject.toml example in the :doc:`Dependency management section of the Quickstart guide <userguide/quickstart>` -- by :user:`mfbutner`

Misc
^^^^
* #3561: Fixed accidental name matching in editable hooks.


v65.2.0
-------


Changes
^^^^^^^
* #3553: Sync with pypa/distutils@22b9bcf, including fixed cross-compiling support and removing deprecation warning per pypa/distutils#169.


v65.1.1
-------


Misc
^^^^
* #3551: Avoided circular imports in meta path finder for editable installs when a
  missing module has the same name as its parent.


v65.1.0
-------


Changes
^^^^^^^
* #3536: Remove monkeypatching of msvc9compiler.

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3538: Corrected documentation on how to use the ``legacy-editable`` mode.


v65.0.2
-------


Misc
^^^^
* #3505: Restored distutils msvccompiler and msvc9compiler modules and marked as deprecated (pypa/distutils@c802880).


v65.0.1
-------


Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3529: Added clarification to :doc:`/userguide/quickstart` about support
  to ``setup.py``.

Misc
^^^^
* #3526: Fixed backward compatibility of editable installs and custom ``build_ext``
  commands inheriting directly from ``distutils``.
* #3528: Fixed ``buid_meta.prepare_metadata_for_build_wheel`` when
  given ``metadata_directory`` is ``"."``.


v65.0.0
-------


Breaking Changes
^^^^^^^^^^^^^^^^
* #3505: Removed 'msvccompiler' and 'msvc9compiler' modules from distutils.
* #3521: Remove bdist_msi and bdist_wininst commands, which have been deprecated since Python 3.9. Use older Setuptools for these behaviors if needed.

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3519: Changed the note in ``keywords`` documentation regarding editable installations
  to specify which ``setuptools`` version require a minimal ``setup.py`` file or not.


v64.0.3
-------


Misc
^^^^
* #3515: Fixed "inline" file copying for editable installations and
  optional extensions.
* #3517: Fixed ``editable_wheel`` to ensure other commands are finalized before using
  them. This should prevent errors with plugins trying to use different commands
  or reinitializing them.
* #3517: Augmented filter to prevent transient/temporary source files from being
  considered ``package_data`` or ``data_files``.


v64.0.2
-------


Misc
^^^^
* #3506: Suppress errors in custom ``build_py`` implementations when running editable
  installs in favor of a warning indicating what is the most appropriate
  migration path.
  This is a *transitional* measure. Errors might be raised in future versions of
  ``setuptools``.
* #3512: Added capability of handling namespace packages created
  accidentally/purposefully via discovery configuration during editable installs.
  This should emulate the behaviour of a non-editable installation.


v64.0.1
-------


Misc
^^^^
* #3497: Fixed ``editable_wheel`` for legacy namespaces.
* #3502: Fixed issue with editable install and single module distributions.
* #3503: Added filter to ignore external ``.egg-info`` files in manifest.

  Some plugins might rely on the fact that the ``.egg-info`` directory is
  produced inside the project dir, which may not be the case in editable installs
  (the ``.egg-info`` directory is produced inside the metadata directory given by
  the build frontend via PEP 660 hooks).


v64.0.0
-------


Deprecations
^^^^^^^^^^^^
* #3380: Passing some types of parameters via ``--global-option`` to setuptools PEP 517/PEP 660 backend
  is now considered deprecated. The user can pass the same arbitrary parameter
  via ``--build-option`` (``--global-option`` is now reserved for flags like
  ``--verbose`` or ``--quiet``).

  Both ``--build-option`` and ``--global-option`` are supported as a **transitional** effort (a.k.a. "escape hatch").
  In the future a proper list of allowed ``config_settings`` may be created.

Breaking Changes
^^^^^^^^^^^^^^^^
* #3265: Added implementation for *editable install* hooks (PEP 660).

  By default the users will experience a *lenient* behavior  which prioritises
  the ability of the users of changing the distributed packages (e.g. adding new
  files or removing old ones).
  But they can also opt into a *strict* mode, which will try to replicate as much
  as possible the behavior of the package as if it would be normally installed by
  end users. The *strict* editable installation is not able to detect if files
  are added or removed from the project (a new installation is required).

  This implementation might also affect plugins and customizations that assume
  certain ``build`` subcommands don't run during editable installs or that they
  always copy files to the temporary build directory.

  .. important::
     The *editable* aspect of the *editable install* supported this implementation
     is restricted to the Python modules contained in the distributed package.
     Changes in binary extensions (e.g. C/C++), entry-point definitions,
     dependencies, metadata, datafiles, etc may require a new installation.

Changes
^^^^^^^
* #3380: Improved the handling of the ``config_settings`` parameter in both PEP 517 and
  PEP 660 interfaces:

  - It is possible now to pass both ``--global-option`` and ``--build-option``.
    As discussed in #1928, arbitrary arguments passed via ``--global-option``
    should be placed before the name of the setuptools' internal command, while
    ``--build-option`` should come after.

  - Users can pass ``editable-mode=strict`` to select a strict behaviour for the
    editable installation.
* #3392: Exposed ``get_output_mapping()`` from ``build_py`` and ``build_ext``
  subcommands. This interface is reserved for the use of ``setuptools``
  Extensions and third part packages are explicitly disallowed to calling it.
  However, any implementation overwriting ``build_py`` or ``build_ext`` are
  required to honour this interface.
* #3412: Added ability of collecting source files from custom build sub-commands to
  ``sdist``. This allows plugins and customization scripts to automatically
  add required source files in the source distribution.
* #3414: Users can *temporarily* specify an environment variable
  ``SETUPTOOLS_ENABLE_FEATURES=legacy-editable`` as a escape hatch for the
  :pep:`660` behavior. This setting is **transitional** and may be removed in the
  future.
* #3484: Added *transient* ``compat`` mode to editable installs.
  This more will be temporarily available (to facilitate the transition period)
  for those that want to emulate the behavior of the ``develop`` command
  (in terms of what is added to ``sys.path``).
  This mode is provided "as is", with limited support, and will be removed in
  future versions of ``setuptools``.

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3414: Updated :doc:`Development Mode </userguide/development_mode>` to reflect on the
  implementation of :pep:`660`.


v63.4.3
-------


Misc
^^^^
* #3496: Update to pypa/distutils@b65aa40 including more robust support for library/include dir handling in msvccompiler (pypa/distutils#153) and test suite improvements.


v63.4.2
-------


Misc
^^^^
* #3453: Bump vendored version of :pypi:`pyparsing` to 3.0.9.
* #3481: Add warning for potential ``install_requires`` and ``extras_require``
  misconfiguration in ``setup.cfg``
* #3487: Modified ``pyproject.toml`` validation exception handling to
  make relevant debugging information easier to spot.


v63.4.1
-------


Misc
^^^^
* #3482: Sync with pypa/distutils@274758f1c02048d295efdbc13d2f88d9923547f8, restoring compatibility shim in bdist.format_commands.


v63.4.0
-------


Changes
^^^^^^^
* #2971: ``upload_docs`` command is deprecated once again.

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3443: Installed ``sphinx-hoverxref`` extension to show tooltips on internal an external references.
  -- by :user:`humitos`
* #3444: Installed ``sphinx-notfound-page`` extension to generate nice 404 pages.
  -- by :user:`humitos`

Misc
^^^^
* #3480: Merge with pypa/distutils@c397f4c


v63.3.0
-------


Changes
^^^^^^^
* #3475: Merge with pypa/distutils@129480b, including substantial delinting and cleanup, some refactoring around compiler logic, better messaging in cygwincompiler (pypa/distutils#161).


v63.2.0
-------


Changes
^^^^^^^
* #3395: Included a performance optimization: ``setuptools.build_meta`` no longer tries
  to :func:`compile` the setup script code before :func:`exec`-ing it.

Misc
^^^^
* #3435: Corrected issue in macOS framework builds on Python 3.9 not installed by homebrew (pypa/distutils#158).


v63.1.0
-------


Changes
^^^^^^^
* #3430: Merge with pypa/distutils@152c13d including pypa/distutils#155 (improved compatibility for editable installs on homebrew Python 3.9), pypa/distutils#150 (better handling of runtime_library_dirs on cygwin), and pypa/distutils#151 (remove warnings for namespace packages).


v63.0.0
-------


Breaking Changes
^^^^^^^^^^^^^^^^
* #3421: Drop setuptools' support for installing an entrypoint extra requirements at load time:
  - the functionality has been broken since v60.8.0.
  - the mechanism to do so is deprecated (``fetch_build_eggs``).
  - that use case (e.g. a custom command class entrypoint) is covered by making sure the necessary build requirements are declared.

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3305: Updated the example pyproject.toml -- by :user:`jacalata`
* #3394: This updates the documentation for the ``file_finders`` hook so that
  the logging recommendation aligns with the suggestion to not use
  ``distutils`` directly.
* #3397: Fix reference for ``keywords`` to point to the Core Metadata Specification
  instead of PEP 314 (the live standard is kept always up-to-date and
  consolidates several PEPs together in a single document).
* #3402: Reordered the User Guide's Table of Contents -- by :user:`codeandfire`


v62.6.0
-------


Changes
^^^^^^^
* #3253: Enabled using ``file:`` for requirements in setup.cfg -- by :user:`akx`
  (this feature is currently considered to be in **beta** stage).
* #3255: Enabled using ``file:`` for dependencies and optional-dependencies in pyproject.toml -- by :user:`akx`
  (this feature is currently considered to be in **beta** stage).
* #3391: Updated ``attr:`` to also extract simple constants with type annotations -- by :user:`karlotness`


v62.5.0
-------


Changes
^^^^^^^
* #3347: Changed warnings and documentation notes about *experimental* aspect of ``pyproject.toml`` configuration:
  now ``[project]`` is a fully supported configuration interface, but the ``[tool.setuptools]`` table
  and sub-tables are still considered to be in **beta** stage.
* #3383: In _distutils_hack, suppress/undo the use of local distutils when select tests are imported in CPython.

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3368: Added documentation page about extension modules -- by :user:`mkoeppe`
* #3371: Moved documentation from ``/userguide/commands`` to ``/depracted/commands``.
  This change was motived by the fact that running ``python setup.py`` directly is
  considered a deprecated practice.
* #3372: Consolidated sections about ``sdist`` contents and ``MANIFEST.in`` into a single page.

  Added a simple ``MANIFEST.in`` example.
* #3373: Moved remarks about using :pypi:`Cython` to the newly created page for
  extension modules.
* #3374: Added clarification that using ``python setup.py egg_info`` commands to
  manage project versions is only supported in a *transitional* basis, and
  that eventually ``egg_info`` will be deprecated.

  Reorganized sections with tips for managing versions.
* #3378: Updated ``Quickstart`` docs to make it easier to follow for beginners.

Misc
^^^^
* #3385: Modules used to parse and evaluate configuration from ``pyproject.toml`` files are
  intended for internal use only and that not part of the public API.


v62.4.0
-------


Changes
^^^^^^^
* #3256: Added setuptools.command.build command to match distutils.command.build -- by :user:`isuruf`
* #3366: Merge with pypa/distutils@75ed79d including reformat using black, fix for Cygwin support (pypa/distutils#139), and improved support for cross compiling (pypa/distutils#144 and pypa/distutils#145).

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3355: Changes to the User Guide's Entry Points page -- by :user:`codeandfire`
* #3361: Further minor corrections to the Entry Points page -- by :user:`codeandfire`
* #3363: Rework some documentation pages to de-emphasize ``distutils`` and the history
  of packaging in the Python ecosystem. The focus of these changes is to make the
  documentation easier to read for new users.
* #3364: Update documentation about dependency management, removing mention to
  the deprecated ``dependency_links`` and adding some small improvements.
* #3367: Extracted text about automatic resource extraction and the zip-safe flag
  from ``userguide/miscellaneous`` to ``deprecated/resource_extraction`` and
  ``deprecated/zip_safe``.

  Extracted text about additional metadata files from
  ``userguide/miscellaneous`` into the existing ``userguide/extension``
  document.

  Updated ``userguide/extension`` to better reflect the status of the
  setuptools project.

  Removed ``userguide/functionalities_rewrite`` (a virtually empty part of the
  docs).


v62.3.4
-------


Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3349: Fixed two small issues preventing docs from building locally -- by :user:`codeandfire`
* #3350: Added note explaining ``package_data`` glob pattern matching for dotfiles -- by :user:`comabrewer`
* #3358: Clarify the role of the ``package_dir`` configuration.

Misc
^^^^
* #3354: Improve clarity in warning about unlisted namespace packages.


v62.3.3
-------


Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3331: Replaced single backticks with double ones in ``CHANGES.rst`` -- by :user:`codeandfire`
* #3332: Fixed grammar/typos, modified example directory trees for src-layout and flat-layout -- by :user:`codeandfire`
* #3335: Changes to code snippets and other examples in the Data Files page of the User Guide -- by :user:`codeandfire`

Misc
^^^^
* #3336: Modified ``test_setup_install_includes_dependencies`` to work with custom ``PYTHONPATH`` –- by :user:`hroncok`


v62.3.2
-------


Misc
^^^^
* #3328: Include a first line summary to some of the existing multi-line warnings.


v62.3.1
-------


Misc
^^^^
* #3320: Fixed typo which causes ``namespace_packages`` to raise an error instead of
  warning.


v62.3.0
-------


Deprecations
^^^^^^^^^^^^
* #3262: Formally added deprecation messages for ``namespace_packages``.
  The methodology that uses ``pkg_resources`` and ``namespace_packages`` for
  creating namespaces was already discouraged by the :doc:`setuptools docs
  </userguide/package_discovery>` and the
  :doc:`Python Packaging User Guide <PyPUG:guides/packaging-namespace-packages>`,
  therefore this change just make the deprecation more official.
  Users can consider migrating to native/implicit namespaces (as introduced in
  :pep:`420`).
* #3308: Relying on ``include_package_data`` to ensure sub-packages are automatically
  added to the build wheel distribution (as "data") is now considered a
  deprecated practice.

  This behaviour was controversial and caused inconsistencies (#3260).

  Instead, projects are encouraged to properly configure ``packages`` or use
  discovery tools. General information can be found in :doc:`userguide/package_discovery`.

Changes
^^^^^^^
* #1806: Allowed recursive globs (``**``) in ``package_data``. -- by :user:`nullableVoidPtr`
* #3206: Fixed behaviour when both ``install_requires`` (in ``setup.py``) and
  ``dependencies`` (in ``pyproject.toml``) are specified.
  The configuration in ``pyproject.toml`` will take precedence over ``setup.py``
  (in accordance with PEP 621). A warning was added to inform users.

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3307: Added introduction to references/keywords.

  Added deprecation tags to test kwargs.

  Moved userguide/keywords to deprecated section.

  Clarified in deprecated doc what keywords came from distutils and which were added or changed by setuptools.

Misc
^^^^
* #3274: Updated version of vendored ``pyparsing`` to 3.0.8 to avoid problems with
  upcoming deprecation in Python 3.11.
* #3292: Added warning about incompatibility with old versions of
  ``importlib-metadata``.


v62.2.0
-------


Changes
^^^^^^^
* #3299: Optional metadata fields are now truly optional. Includes merge with pypa/distutils@a7cfb56 per pypa/distutils#138.

Misc
^^^^
* #3282: Added CI cache for ``setup.cfg`` examples used when testing ``setuptools.config``.


v62.1.0
-------


Changes
^^^^^^^
* #3258: Merge pypa/distutils@5229dad46b.

Misc
^^^^
* #3249: Simplified ``package_dir`` obtained via auto-discovery.


v62.0.0
-------


Breaking Changes
^^^^^^^^^^^^^^^^
* #3151: Made ``setup.py develop --user`` install to the user site packages directory even if it is disabled in the current interpreter.

Changes
^^^^^^^
* #3153: When resolving requirements use both canonical and normalized names -- by :user:`ldaniluk`
* #3167: Honor unix file mode in ZipFile when installing wheel via ``install_as_egg`` -- by :user:`delijati`

Misc
^^^^
* #3088: Fixed duplicated tag with the ``dist-info`` command.
* #3247: Fixed problem preventing ``readme`` specified as dynamic in ``pyproject.toml``
  from being dynamically specified in ``setup.py``.


v61.3.1
-------


Misc
^^^^
* #3233: Included missing test file ``setupcfg_examples.txt`` in ``sdist``.
* #3233: Added script that allows developers to download ``setupcfg_examples.txt`` prior to
  running tests. By caching these files it should be possible to run the test suite
  offline.


v61.3.0
-------


Changes
^^^^^^^
* #3229: Disabled automatic download of ``trove-classifiers`` to facilitate reproducibility.

Misc
^^^^
* #3229: Updated ``pyproject.toml`` validation via ``validate-pyproject`` v0.7.1.
* #3229: New internal tool made available for updating the code responsible for
  the validation of ``pyproject.toml``.
  This tool can be executed via ``tox -e generate-validation-code``.


v61.2.0
-------


Changes
^^^^^^^
* #3215: Ignored a subgroup of invalid ``pyproject.toml`` files that use the ``[project]``
  table to specify only ``requires-python`` (**transitional**).

  .. warning::
     Please note that future releases of setuptools will halt the build process
     if a ``pyproject.toml`` file that does not match doc:`the PyPA Specification
     <PyPUG:specifications/declaring-project-metadata>` is given.
* #3215: Updated ``pyproject.toml`` validation, as generated by ``validate-pyproject==0.6.1``.
* #3218: Prevented builds from erroring if the project specifies metadata via
  ``pyproject.toml``, but uses other files (e.g. ``setup.py``) to complement it,
  without setting ``dynamic`` properly.

  .. important::
     This is a **transitional** behaviour.
     Future releases of ``setuptools`` may simply ignore externally set metadata
     not backed by ``dynamic`` or even halt the build with an error.
* #3224: Merge changes from pypa/distutils@e1d5c9b1f6

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3217: Fixed typo in ``pyproject.toml`` example in Quickstart -- by :user:`pablo-cardenas`.

Misc
^^^^
* #3223: Fixed missing requirements with environment markers when
  ``optional-dependencies`` is set in ``pyproject.toml``.


v61.1.1
-------


Misc
^^^^
* #3212: Fixed missing dependencies when running ``setup.py install``.
  Note that calling ``setup.py install`` directly is still deprecated and
  will be removed in future versions of ``setuptools``.
  Please check the release notes for :ref:`setup_install_deprecation_note`.


v61.1.0
-------


Deprecations
^^^^^^^^^^^^
* #3206: Changed ``setuptools.convert_path`` to an internal function that is not exposed
  as part of setuptools API.
  Future releases of ``setuptools`` are likely to remove this function.

Changes
^^^^^^^
* #3202: Changed behaviour of auto-discovery to not explicitly expand ``package_dir``
  for flat-layouts and to not use relative paths starting with ``./``.
* #3203: Prevented ``pyproject.toml`` parsing from overwriting
  ``dist.include_package_data`` explicitly set in ``setup.py`` with default
  value.
* #3208: Added a warning for non existing files listed with the ``file`` directive in
  ``setup.cfg`` and ``pyproject.toml``.
* #3208: Added a default value for dynamic ``classifiers`` in ``pyproject.toml`` when
  files are missing and errors being ignored.
* #3211: Disabled auto-discovery when distribution class has a ``configuration``
  attribute (e.g. when the ``setup.py`` script contains ``setup(...,
  configuration=...)``).  This is done to ensure extension-only packages created
  with ``numpy.distutils.misc_util.Configuration`` are not broken by the safe
  guard
  behaviour to avoid accidental multiple top-level packages in a flat-layout.

  .. note::
     Users that don't set ``packages``, ``py_modules``, or ``configuration`` are
     still likely to observe the auto-discovery behavior, which may halt the
     build if the project contains multiple directories and/or multiple Python
     files directly under the project root.

     To disable auto-discovery please explicitly set either ``packages`` or
     ``py_modules``. Alternatively you can also configure :ref:`custom-discovery`.


v61.0.0
-------


Deprecations
^^^^^^^^^^^^
* #3068: Deprecated ``setuptools.config.read_configuration``,
  ``setuptools.config.parse_configuration`` and other functions or classes
  from ``setuptools.config``.

  Users that still need to parse and process configuration from ``setup.cfg`` can
  import a direct replacement from ``setuptools.config.setupcfg``, however this
  module is transitional and might be removed in the future
  (the ``setup.cfg`` configuration format itself is likely to be deprecated in the future).

Breaking Changes
^^^^^^^^^^^^^^^^
* #2894: If you purposefully want to create an *"empty distribution"*, please be aware
  that some Python files (or general folders) might be automatically detected and
  included.

  Projects that currently don't specify both ``packages`` and ``py_modules`` in their
  configuration and contain extra folders or Python files (not meant for distribution),
  might see these files being included in the wheel archive or even experience
  the build to fail.

  You can check details about the automatic discovery (and how to configure a
  different behaviour) in :doc:`/userguide/package_discovery`.
* #3067: If the file ``pyproject.toml`` exists and it includes project
  metadata/config (via ``[project]`` table or ``[tool.setuptools]``),
  a series of new behaviors that are not backward compatible may take place:

  - The default value of ``include_package_data`` will be considered to be ``True``.
  - Setuptools will attempt to validate the ``pyproject.toml`` file according
    to PEP 621 specification.
  - The values specified in ``pyproject.toml`` will take precedence over those
    specified in ``setup.cfg`` or ``setup.py``.

Changes
^^^^^^^
* #2887: **[EXPERIMENTAL]** Added automatic discovery for ``py_modules`` and ``packages``
  -- by :user:`abravalheri`.

  Setuptools will try to find these values assuming that the package uses either
  the *src-layout* (a ``src`` directory containing all the packages or modules),
  the *flat-layout* (package directories directly under the project root),
  or the *single-module* approach (an isolated Python file, directly under
  the project root).

  The automatic discovery will also respect layouts that are explicitly
  configured using the ``package_dir`` option.

  For backward-compatibility, this behavior will be observed **only if both**
  ``py_modules`` **and** ``packages`` **are not set**.
  (**Note**: specifying ``ext_modules`` might also prevent auto-discover from
  taking place)

  If setuptools detects modules or packages that are not supposed to be in the
  distribution, please manually set ``py_modules`` and ``packages`` in your
  ``setup.cfg`` or ``setup.py`` file.
  If you are using a *flat-layout*, you can also consider switching to
  *src-layout*.
* #2887: **[EXPERIMENTAL]** Added automatic configuration for the ``name`` metadata
  -- by :user:`abravalheri`.

  Setuptools will adopt the name of the top-level package (or module in the case
  of single-module distributions), **only when** ``name`` **is not explicitly
  provided**.

  Please note that it is not possible to automatically derive a single name when
  the distribution consists of multiple top-level packages or modules.
* #3066: Added vendored dependencies for :pypi:`tomli`, :pypi:`validate-pyproject`.

  These dependencies are used to read ``pyproject.toml`` files and validate them.
* #3067: **[EXPERIMENTAL]** When using ``pyproject.toml`` metadata,
  the default value of ``include_package_data`` is changed to ``True``.
* #3068: **[EXPERIMENTAL]** Add support for ``pyproject.toml`` configuration
  (as introduced by :pep:`621`). Configuration parameters not covered by
  standards are handled in the ``[tool.setuptools]`` sub-table.

  In the future, existing ``setup.cfg`` configuration
  may be automatically converted into the ``pyproject.toml`` equivalent before taking effect
  (as proposed in #1688). Meanwhile users can use automated tools like
  :pypi:`ini2toml` to help in the transition.

  Please note that the legacy backend is not guaranteed to work with
  ``pyproject.toml`` configuration.

  -- by :user:`abravalheri`
* #3125: Implicit namespaces (as introduced in :pep:`420`) are now considered by default
  during :doc:`package discovery </userguide/package_discovery>`, when
  ``setuptools`` configuration and project metadata are added to the
  ``pyproject.toml`` file.

  To disable this behaviour, use ``namespaces = False`` when explicitly setting
  the ``[tool.setuptools.packages.find]`` section in ``pyproject.toml``.

  This change is backwards compatible and does not affect the behaviour of
  configuration done in ``setup.cfg`` or ``setup.py``.
* #3152: **[EXPERIMENTAL]** Added support for ``attr:`` and ``cmdclass`` configurations
  in ``setup.cfg`` and ``pyproject.toml`` when ``package_dir`` is implicitly
  found via auto-discovery.
* #3178: Postponed importing ``ctypes`` when hiding files on Windows.
  This helps to prevent errors in systems that might not have ``libffi`` installed.
* #3179: Merge with pypa/distutils@267dbd25ac

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3172: Added initial documentation about configuring ``setuptools`` via ``pyproject.toml``
  (using standard project metadata).

Misc
^^^^
* #3065: Refactored ``setuptools.config`` by separating configuration parsing (specific
  to the configuration file format, e.g. ``setup.cfg``) and post-processing
  (which includes directives such as ``file:`` that can be used across different
  configuration formats).


v60.10.0
--------


Changes
^^^^^^^
* #2971: Deprecated upload_docs command, to be removed in the future.
* #3137: Use samefile from stdlib, supported on Windows since Python 3.2.
* #3170: Adopt nspektr (vendored) to implement Distribution._install_dependencies.

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #3144: Added documentation on using console_scripts from setup.py, which was previously only shown in setup.cfg  -- by :user:`xhlulu`
* #3148: Added clarifications about ``MANIFEST.in``, that include links to PyPUG docs
  and more prominent mentions to using a revision control system plugin as an
  alternative.
* #3148: Removed mention to ``pkg_resources`` as the recommended way of accessing data
  files, in favour of importlib.resources.
  Additionally more emphasis was put on the fact that *package data files* reside
  **inside** the *package directory* (and therefore should be *read-only*).

Misc
^^^^
* #3120: Added workaround for intermittent failures of backend tests on PyPy.
  These tests now are marked with `XFAIL
  <https://docs.pytest.org/en/stable/how-to/skipping.html>`_, instead of erroring
  out directly.
* #3124: Improved configuration for :pypi:`rst-linker` (extension used to build the
  changelog).
* #3133: Enhanced isolation of tests using virtual environments - PYTHONPATH is not leaking to spawned subprocesses  -- by :user:`befeleme`
* #3147: Added options to provide a pre-built ``setuptools`` wheel or sdist for being
  used during tests with virtual environments.
  Paths for these pre-built distribution files can now be set via the environment
  variables: ``PRE_BUILT_SETUPTOOLS_SDIST`` and ``PRE_BUILT_SETUPTOOLS_WHEEL``.


v60.9.3
-------


Misc
^^^^
* #3093: Repaired automated release process.


v60.9.2
-------


Misc
^^^^
* #3035: When loading distutils from the vendored copy, rewrite ``__name__`` to ensure consistent importing from inside and out.


v60.9.1
-------


Misc
^^^^
* #3102: Prevent vendored importlib_metadata from loading distributions from older importlib_metadata.
* #3103: Fixed issue where string-based entry points would be omitted.
* #3107: Bump importlib_metadata to 4.11.1 addressing issue with parsing requirements in egg-info as found in PyPy.


v60.9.0
-------


Changes
^^^^^^^
* #2876: In the build backend, allow single config settings to be supplied.
* #2993: Removed workaround in distutils hack for get-pip now that pypa/get-pip#137 is closed.
* #3085: Setuptools no longer relies on ``pkg_resources`` for entry point handling.
* #3098: Bump vendored packaging to 21.3.
* Removed bootstrap script.

.. warning:: Users trying to install the unmaintained :pypi:`pathlib` backport
   from PyPI/``sdist``/source code may find problems when using ``setuptools >= 60.9.0``.
   This happens because during the installation, the unmaintained
   implementation of ``pathlib`` is loaded and may cause compatibility problems
   (it does not expose the same public API defined in the Python standard library).

   Whenever possible users should avoid declaring ``pathlib`` as a dependency.
   An alternative is to pre-build a wheel for ``pathlib`` using a separated
   virtual environment with an older version of setuptools and install the
   library directly from the pre-built wheel.


v60.8.2
-------


Misc
^^^^
* #3091: Make ``concurrent.futures`` import lazy in vendored ``more_itertools``
  package to a  avoid importing threading as a side effect (which caused
  `gevent/gevent#1865 <https://github.com/gevent/gevent/issues/1865>`__).
  -- by :user:`maciejp-ro`


v60.8.1
-------


Misc
^^^^
* #3084: When vendoring jaraco packages, ensure the namespace package is converted to a simple package to support zip importer.


v60.8.0
-------


Changes
^^^^^^^
* #3085: Setuptools now vendors importlib_resources and importlib_metadata and jaraco.text. Setuptools no longer relies on pkg_resources for ensure_directory nor parse_requirements.


v60.7.1
-------


Misc
^^^^
* #3072: Remove lorem_ipsum from jaraco.text when vendored.


v60.7.0
-------


Changes
^^^^^^^
* #3061: Vendored jaraco.text and use line processing from that library in pkg_resources.

Misc
^^^^
* #3070: Avoid AttributeError in easy_install.create_home_path when sysconfig.get_config_vars values are not strings.


v60.6.0
-------


Changes
^^^^^^^
* #3043: Merge with pypa/distutils@bb018f1ac3 including consolidated behavior in sysconfig.get_platform (pypa/distutils#104).
* #3057: Don't include optional ``Home-page`` in metadata if no ``url`` is specified. -- by :user:`cdce8p`
* #3062: Merge with pypa/distutils@b53a824ec3 including improved support for lib directories on non-x64 Windows builds.

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* #2897: Added documentation about wrapping ``setuptools.build_meta`` in a in-tree
  custom backend. This is a :pep:`517`-compliant way of dynamically specifying
  build dependencies (e.g. when platform, OS and other markers are not enough).
  -- by :user:`abravalheri`
* #3034: Replaced occurrences of the defunct distutils-sig mailing list with pointers
  to GitHub Discussions.
  -- by :user:`ashemedai`
* #3056: The documentation has stopped suggesting to add ``wheel`` to
  :pep:`517` requirements -- by :user:`webknjaz`

Misc
^^^^
* #3054: Used Py3 syntax ``super().__init__()`` -- by :user:`imba-tjd`


v60.5.4
-------


Misc
^^^^
* #3009: Remove filtering of distutils warnings.
* #3031: Suppress distutils replacement when building or testing CPython.


v60.5.3
-------


Misc
^^^^
* #3026: Honor sysconfig variables in easy_install.


v60.5.2
-------
