Flask

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Unreleased

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Released 2024-04-07

- The default ``hashlib.sha1`` may not be available in FIPS builds. Don't
access it at import time so the developer has time to change the default.
:issue:`5448`
- Don't initialize the ``cli`` attribute in the sansio scaffold, but rather in
the ``Flask`` concrete class. :pr:`5270`

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Released 2024-02-03

- Correct type for ``jinja_loader`` property. :issue:`5388`
- Fix error with ``--extra-files`` and ``--exclude-patterns`` CLI options.
:issue:`5391`

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Released 2024-01-18

- Correct type for ``path`` argument to ``send_file``. :issue:`5230`
- Fix a typo in an error message for the ``flask run --key`` option. :pr:`5344`
- Session data is untagged without relying on the built-in ``json.loads``
``object_hook``. This allows other JSON providers that don't implement that.
:issue:`5381`
- Address more type findings when using mypy strict mode. :pr:`5383`

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Released 2023-09-30

- Remove previously deprecated code. :pr:`5223`
- Deprecate the ``__version__`` attribute. Use feature detection, or
``importlib.metadata.version("flask")``, instead. :issue:`5230`
- Restructure the code such that the Flask (app) and Blueprint
classes have Sans-IO bases. :pr:`5127`
- Allow self as an argument to url_for. :pr:`5264`
- Require Werkzeug >= 3.0.0.

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Released 2023-08-21

- Python 3.12 compatibility.
- Require Werkzeug >= 2.3.7.
- Use ``flit_core`` instead of ``setuptools`` as build backend.
- Refactor how an app's root and instance paths are determined. :issue:`5160`