Click-hotoffthehamster

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Unreleased

- Drop support for Python 3.7. :pr:`2588`
- Use modern packaging metadata with ``pyproject.toml`` instead of ``setup.cfg``.
:pr:`326`
- Use ``flit_core`` instead of ``setuptools`` as build backend.
- Deprecate the ``__version__`` attribute. Use feature detection, or
``importlib.metadata.version("click")``, instead. :issue:`2598`
- ``BaseCommand`` is deprecated. ``Command`` is the base class for all
commands. :issue:`2589`
- ``MultiCommand`` is deprecated. ``Group`` is the base class for all group
commands. :issue:`2590`
- The current parser and related classes and methods, are deprecated.
:issue:`2205`

- ``OptionParser`` and the ``parser`` module, which is a modified copy of
``optparse`` in the standard library.
- ``Context.protected_args`` is unneeded. ``Context.args`` contains any
remaining arguments while parsing.
- ``Parameter.add_to_parser`` (on both ``Argument`` and ``Option``) is
unneeded. Parsing works directly without building a separate parser.
- ``split_arg_string`` is moved from ``parser`` to ``shell_completion``.

- Enable deferred evaluation of annotations with
``from __future__ import annotations``. :pr:`2270`
- When generating a command's name from a decorated function's name, the
suffixes ``_command``, ``_cmd``, ``_group``, and ``_grp`` are removed.
:issue:`2322`

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Released 2023-08-17

- Fix issue with regex flags in shell completion. :issue:`2581`
- Bash version detection issues a warning instead of an error. :issue:`2574`
- Fix issue with completion script for Fish shell. :issue:`2567`

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Released 2023-07-18

- Fix an issue with type hints for ``click.group()``. :issue:`2558`

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Released 2023-07-13

- Fix an issue with type hints for ``click.command()``, ``click.option()``, and
other decorators. Introduce typing tests. :issue:`2558`

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Released 2023-07-06

- Replace all ``typing.Dict`` occurrences to ``typing.MutableMapping`` for
parameter hints. :issue:`2255`
- Improve type hinting for decorators and give all generic types parameters.
:issue:`2398`
- Fix return value and type signature of `shell_completion.add_completion_class`
function. :pr:`2421`
- Bash version detection doesn't fail on Windows. :issue:`2461`
- Completion works if there is a dot (``.``) in the program name. :issue:`2166`
- Improve type annotations for pyright type checker. :issue:`2268`
- Improve responsiveness of ``click.clear()``. :issue:`2284`
- Improve command name detection when using Shiv or PEX. :issue:`2332`
- Avoid showing empty lines if command help text is empty. :issue:`2368`
- ZSH completion script works when loaded from ``fpath``. :issue:`2344`.
- ``EOFError`` and ``KeyboardInterrupt`` tracebacks are not suppressed when
``standalone_mode`` is disabled. :issue:`2380`
- ``group.command`` does not fail if the group was created with a custom
``command_class``. :issue:`2416`
- ``multiple=True`` is allowed for flag options again and does not require
setting ``default=()``. :issue:`2246, 2292, 2295`
- Make the decorators returned by ``argument()`` and ``option()`` reusable when the
``cls`` parameter is used. :issue:`2294`
- Don't fail when writing filenames to streams with strict errors. Replace invalid
bytes with the replacement character (``�``). :issue:`2395`
- Remove unnecessary attempt to detect MSYS2 environment. :issue:`2355`
- Remove outdated and unnecessary detection of App Engine environment. :pr:`2554`
- ``echo()`` does not fail when no streams are attached, such as with ``pythonw`` on
Windows. :issue:`2415`
- Argument with ``expose_value=False`` do not cause completion to fail. :issue:`2336`

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Released 2022-04-28

- Use verbose form of ``typing.Callable`` for ``command`` and
``group``. :issue:`2255`
- Show error when attempting to create an option with
``multiple=True, is_flag=True``. Use ``count`` instead.
:issue:`2246`