- update to 8.0.3:
* Fix issue with ``Path(resolve_path=True)`` type creating invalid
paths. :issue:`2088`
* Importing ``readline`` does not cause the ``confirm()`` prompt to
disappear when pressing backspace. :issue:`2092`
* Any default values injected by ``invoke()`` are cast to the
corresponding parameter's type. :issue:`2089, 2090`
* ``is_bool_flag`` is not set to ``True`` if ``is_flag`` is ``False``.
* Bash version detection is locale independent. :issue:`1940`
* Empty ``default`` value is not shown for ``multiple=True``.
* Fix shell completion for arguments that start with a forward slash
such as absolute file paths. :issue:`1929`
* ``Path`` type with ``resolve_path=True`` resolves relative symlinks
to be relative to the containing directory. :issue:`1921`
* Completion does not skip Python's resource cleanup when exiting,
avoiding some unexpected warning output. :issue:`1738, 2017`
* Fix type annotation for ``type`` argument in ``prompt`` function.
* Fix overline and italic styles, which were incorrectly added when
adding underline. :pr:`2058`
* An option with ``count=True`` will not show "[x>=0]" in help text.
* Default values are not cast to the parameter type twice during
processing.
* Options with ``multiple`` and ``flag_value`` use the flag value
instead of leaving an internal placeholder.