now have a new method ``get_error_message()``, which can be overridden in

subclasses to customize the error messages.

:mod:`django.contrib.gis`

~~~~~~~~~~~~~~~~~~~~~~~~~

:class:`~django.contrib.gis.db.models.functions.IsValid` database functions

are now supported on MariaDB 11.7+.

:mod:`django.contrib.syndication`

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

processing instruction will be added to the top of the document for each

stylesheet in the given list. See :ref:`feed-stylesheets` for more details.

Database backends

~~~~~~~~~~~~~~~~~

* The attribute :attr:`.SafeExceptionReporterFilter.hidden_settings` now

treats values as sensitive if their name includes ``AUTH``.

Forms

~~~~~

custom HTML-attributes to JavaScript in form media. See

:ref:`paths as objects <form-media-asset-objects>` for more details.

Management Commands

~~~~~~~~~~~~~~~~~~~

:func:`~django.shortcuts.redirect` allows to instruct the user agent to reuse

the HTTP method and body during redirection using specific status codes.

Serialization

~~~~~~~~~~~~~

* Each serialization format now defines a ``Deserializer`` class, rather than a

function, to improve extensibility when defining a

:ref:`custom serialization format <custom-serialization-formats>`.

Templates

~~~~~~~~~

of mappings, passing their contents as keyword arguments to

:func:`~django.utils.html.format_html`.

.. _backwards-incompatible-5.2:

Backwards incompatible changes in 5.2