* Fix an issue that caused ``str(Request.headers)`` to always appear empty.
:issue:`2985`
- from version 3.1.0
* Drop support for Python 3.8. :pr:`2966`
* Remove previously deprecated code. :pr:`2967`
* ``Request.max_form_memory_size`` defaults to 500kB instead of unlimited.
Non-file form fields over this size will cause a ``RequestEntityTooLarge``
error. :issue:`2964`
* ``OrderedMultiDict`` and ``ImmutableOrderedMultiDict`` are deprecated.
Use ``MultiDict`` and ``ImmutableMultiDict`` instead. :issue:`2968`
* Behavior of properties on ``request.cache_control`` and
``response.cache_control`` has been significantly adjusted.
* Dict values are always ``str | None``. Setting properties will convert
the value to a string. Setting a property to ``False`` is equivalent to
setting it to ``None``. Getting typed properties will return ``None`` if
conversion raises ``ValueError``, rather than the string. :issue:`2980`
* ``max_age`` is ``None`` if present without a value, rather than ``-1``.
:issue:`2980`
* ``no_cache`` is a boolean for requests, it is ``True`` instead of
``"*"`` when present. It remains a string for responses. :issue:`2980`
* ``max_stale`` is ``True`` if present without a value, rather
than ``"*"``. :issue:`2980`
* ``no_transform`` is a boolean. Previously it was mistakenly always
``None``. :issue:`2881`
* ``min_fresh`` is ``None`` if present without a value, rather than
``"*"``. :issue:`2881`
* ``private`` is ``True`` if present without a value, rather than ``"*"``.
:issue:`2980`
* Added the ``must_understand`` property. :issue:`2881`
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-Werkzeug?expand=0&rev=98
