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742 lines
26 KiB
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742 lines
26 KiB
Plaintext
============================================
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Django 5.0 release notes - UNDER DEVELOPMENT
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============================================
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*Expected December 2023*
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Welcome to Django 5.0!
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These release notes cover the :ref:`new features <whats-new-5.0>`, as well as
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some :ref:`backwards incompatible changes <backwards-incompatible-5.0>` you'll
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want to be aware of when upgrading from Django 4.2 or earlier. We've
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:ref:`begun the deprecation process for some features
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<deprecated-features-5.0>`.
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See the :doc:`/howto/upgrade-version` guide if you're updating an existing
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project.
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Python compatibility
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====================
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Django 5.0 supports Python 3.10, 3.11, and 3.12. We **highly recommend** and
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only officially support the latest release of each series.
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The Django 4.2.x series is the last to support Python 3.8 and 3.9.
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Third-party library support for older version of Django
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=======================================================
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Following the release of Django 5.0, we suggest that third-party app authors
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drop support for all versions of Django prior to 4.2. At that time, you should
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be able to run your package's tests using ``python -Wd`` so that deprecation
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warnings appear. After making the deprecation warning fixes, your app should be
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compatible with Django 5.0.
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.. _whats-new-5.0:
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What's new in Django 5.0
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========================
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Facet filters in the admin
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--------------------------
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Facet counts are now shown for applied filters in the admin changelist when
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toggled on via the UI. This behavior can be changed via the new
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:attr:`.ModelAdmin.show_facets` attribute. For more information see
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:ref:`facet-filters`.
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Simplified templates for form field rendering
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---------------------------------------------
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Django 5.0 introduces the concept of a field group, and field group templates.
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This simplifies rendering of the related elements of a Django form field such
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as its label, widget, help text, and errors.
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For example, the template below:
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.. code-block:: html+django
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<form>
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...
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<div>
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{{ form.name.label_tag }}
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{% if form.name.help_text %}
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<div class="helptext" id="{{ form.name.id_for_label }}_helptext">
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{{ form.name.help_text|safe }}
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</div>
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{% endif %}
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{{ form.name.errors }}
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{{ form.name }}
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<div class="row">
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<div class="col">
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{{ form.email.label_tag }}
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{% if form.email.help_text %}
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<div class="helptext" id="{{ form.email.id_for_label }}_helptext">
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{{ form.email.help_text|safe }}
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</div>
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{% endif %}
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{{ form.email.errors }}
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{{ form.email }}
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</div>
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<div class="col">
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{{ form.password.label_tag }}
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{% if form.password.help_text %}
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<div class="helptext" id="{{ form.password.id_for_label }}_helptext">
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{{ form.password.help_text|safe }}
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</div>
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{% endif %}
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{{ form.password.errors }}
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{{ form.password }}
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</div>
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</div>
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</div>
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...
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</form>
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Can now be simplified to:
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.. code-block:: html+django
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<form>
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...
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<div>
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{{ form.name.as_field_group }}
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<div class="row">
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<div class="col">{{ form.email.as_field_group }}</div>
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<div class="col">{{ form.password.as_field_group }}</div>
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</div>
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</div>
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...
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</form>
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:meth:`~django.forms.BoundField.as_field_group` renders fields with the
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``"django/forms/field.html"`` template by default and can be customized on a
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per-project, per-field, or per-request basis. See
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:ref:`reusable-field-group-templates`.
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Database-computed default values
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--------------------------------
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The new :attr:`Field.db_default <django.db.models.Field.db_default>` parameter
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sets a database-computed default value. For example::
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from django.db import models
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from django.db.models.functions import Now, Pi
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class MyModel(models.Model):
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age = models.IntegerField(db_default=18)
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created = models.DateTimeField(db_default=Now())
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circumference = models.FloatField(db_default=2 * Pi())
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Database generated model field
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------------------------------
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The new :class:`~django.db.models.GeneratedField` allows creation of database
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generated columns. This field can be used on all supported database backends
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to create a field that is always computed from other fields. For example::
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from django.db import models
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from django.db.models import F
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class Square(models.Model):
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side = models.IntegerField()
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area = models.GeneratedField(expression=F("side") * F("side"), db_persist=True)
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More options for declaring field choices
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----------------------------------------
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:attr:`.Field.choices` *(for model fields)* and :attr:`.ChoiceField.choices`
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*(for form fields)* allow for more flexibility when declaring their values. In
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previous versions of Django, ``choices`` should either be a list of 2-tuples,
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or an :ref:`field-choices-enum-types` subclass, but the latter required
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accessing the ``.choices`` attribute to provide the values in the expected
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form::
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from django.db import models
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Medal = models.TextChoices("Medal", "GOLD SILVER BRONZE")
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SPORT_CHOICES = [
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("Martial Arts", [("judo", "Judo"), ("karate", "Karate")]),
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("Racket", [("badminton", "Badminton"), ("tennis", "Tennis")]),
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("unknown", "Unknown"),
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]
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class Winner(models.Model):
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name = models.CharField(...)
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medal = models.CharField(..., choices=Medal.choices)
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sport = models.CharField(..., choices=SPORT_CHOICES)
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Django 5.0 adds support for accepting a mapping or a callable instead of an
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iterable, and also no longer requires ``.choices`` to be used directly to
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expand :ref:`enumeration types <field-choices-enum-types>`::
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from django.db import models
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Medal = models.TextChoices("Medal", "GOLD SILVER BRONZE")
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SPORT_CHOICES = { # Using a mapping instead of a list of 2-tuples.
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"Martial Arts": {"judo": "Judo", "karate": "Karate"},
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"Racket": {"badminton": "Badminton", "tennis": "Tennis"},
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"unknown": "Unknown",
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}
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def get_scores():
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return [(i, str(i)) for i in range(10)]
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class Winner(models.Model):
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name = models.CharField(...)
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medal = models.CharField(..., choices=Medal) # Using `.choices` not required.
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sport = models.CharField(..., choices=SPORT_CHOICES)
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score = models.IntegerField(choices=get_scores) # A callable is allowed.
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Under the hood the provided ``choices`` are normalized into a list of 2-tuples
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as the canonical form whenever the ``choices`` value is updated. For more
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information, please check the :ref:`model field reference on choices
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<field-choices>`.
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Minor features
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--------------
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:mod:`django.contrib.admin`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* The new :meth:`.AdminSite.get_log_entries` method allows customizing the
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queryset for the site's listed log entries.
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* The ``django.contrib.admin.AllValuesFieldListFilter``,
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``ChoicesFieldListFilter``, ``RelatedFieldListFilter``, and
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``RelatedOnlyFieldListFilter`` admin filters now handle multi-valued query
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parameters.
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* ``XRegExp`` is upgraded from version 3.2.0 to 5.1.1.
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* The new :meth:`.AdminSite.get_model_admin` method returns an admin class for
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the given model class.
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* Properties in :attr:`.ModelAdmin.list_display` now support ``boolean``
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attribute.
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* jQuery is upgraded from version 3.6.4 to 3.7.1.
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:mod:`django.contrib.auth`
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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* The default iteration count for the PBKDF2 password hasher is increased from
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600,000 to 720,000.
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* The new asynchronous functions are now provided, using an
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``a`` prefix: :func:`django.contrib.auth.aauthenticate`,
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:func:`~.django.contrib.auth.aget_user`,
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:func:`~.django.contrib.auth.alogin`, :func:`~.django.contrib.auth.alogout`,
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and :func:`~.django.contrib.auth.aupdate_session_auth_hash`.
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* ``AuthenticationMiddleware`` now adds an :meth:`.HttpRequest.auser`
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asynchronous method that returns the currently logged-in user.
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* The new :func:`django.contrib.auth.hashers.acheck_password` asynchronous
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function and :meth:`.AbstractBaseUser.acheck_password` method allow
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asynchronous checking of user passwords.
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:mod:`django.contrib.contenttypes`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* :meth:`.QuerySet.prefetch_related` now supports prefetching
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:class:`~django.contrib.contenttypes.fields.GenericForeignKey` with
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non-homogeneous set of results.
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:mod:`django.contrib.gis`
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~~~~~~~~~~~~~~~~~~~~~~~~~
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* The new
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:class:`ClosestPoint() <django.contrib.gis.db.models.functions.ClosestPoint>`
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function returns a 2-dimensional point on the geometry that is closest to
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another geometry.
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* :ref:`GIS aggregates <gis-aggregation-functions>` now support the ``filter``
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argument.
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* Support for GDAL 3.7 and GEOS 3.12 is added.
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* The new :meth:`.GEOSGeometry.equals_identical` method allows point-wise
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equivalence checking of geometries.
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:mod:`django.contrib.messages`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* The new :meth:`.MessagesTestMixin.assertMessages` assertion method allows
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testing :mod:`~django.contrib.messages` added to a
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:class:`response <django.http.HttpResponse>`.
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:mod:`django.contrib.postgres`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* The new :attr:`~.ExclusionConstraint.violation_error_code` attribute of
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:class:`~django.contrib.postgres.constraints.ExclusionConstraint` allows
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customizing the ``code`` of ``ValidationError`` raised during
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:ref:`model validation <validating-objects>`.
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Asynchronous views
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~~~~~~~~~~~~~~~~~~
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* Under ASGI, ``http.disconnect`` events are now handled. This allows views to
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perform any necessary cleanup if a client disconnects before the response is
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generated. See :ref:`async-handling-disconnect` for more details.
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Decorators
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~~~~~~~~~~
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* The following decorators now support wrapping asynchronous view functions:
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* :func:`~django.views.decorators.cache.cache_control`
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* :func:`~django.views.decorators.cache.never_cache`
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* :func:`~django.views.decorators.common.no_append_slash`
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* :func:`~django.views.decorators.csrf.csrf_exempt`
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* :func:`~django.views.decorators.csrf.csrf_protect`
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* :func:`~django.views.decorators.csrf.ensure_csrf_cookie`
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* :func:`~django.views.decorators.csrf.requires_csrf_token`
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* :func:`~django.views.decorators.debug.sensitive_variables`
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* :func:`~django.views.decorators.debug.sensitive_post_parameters`
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* :func:`~django.views.decorators.gzip.gzip_page`
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* :func:`~django.views.decorators.http.condition`
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* ``conditional_page()``
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* :func:`~django.views.decorators.http.etag`
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* :func:`~django.views.decorators.http.last_modified`
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* :func:`~django.views.decorators.http.require_http_methods`
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* :func:`~django.views.decorators.http.require_GET`
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* :func:`~django.views.decorators.http.require_POST`
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* :func:`~django.views.decorators.http.require_safe`
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* :func:`~django.views.decorators.vary.vary_on_cookie`
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* :func:`~django.views.decorators.vary.vary_on_headers`
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* ``xframe_options_deny()``
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* ``xframe_options_sameorigin()``
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* ``xframe_options_exempt()``
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Error Reporting
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~~~~~~~~~~~~~~~
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* :func:`~django.views.decorators.debug.sensitive_variables` and
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:func:`~django.views.decorators.debug.sensitive_post_parameters` can now be
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used with asynchronous functions.
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File Storage
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~~~~~~~~~~~~
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* :meth:`.File.open` now passes all positional (``*args``) and keyword
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arguments (``**kwargs``) to Python's built-in :func:`python:open`.
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Forms
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~~~~~
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* The new ``assume_scheme`` argument for :class:`~django.forms.URLField` allows
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specifying a default URL scheme.
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* In order to improve accessibility, the following changes are made:
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* Form fields now include the ``aria-describedby`` HTML attribute to enable
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screen readers to associate form fields with their help text.
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* Invalid form fields now include the ``aria-invalid="true"`` HTML attribute.
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Internationalization
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~~~~~~~~~~~~~~~~~~~~
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* Support and translations for the Uyghur language are now available.
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Migrations
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~~~~~~~~~~
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* Serialization of functions decorated with :func:`functools.cache` or
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:func:`functools.lru_cache` is now supported without the need to write a
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custom serializer.
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Models
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~~~~~~
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* The new ``create_defaults`` argument of :meth:`.QuerySet.update_or_create`
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and :meth:`.QuerySet.aupdate_or_create` methods allows specifying a different
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field values for the create operation.
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* The new ``violation_error_code`` attribute of
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:class:`~django.db.models.BaseConstraint`,
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:class:`~django.db.models.CheckConstraint`, and
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:class:`~django.db.models.UniqueConstraint` allows customizing the ``code``
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of ``ValidationError`` raised during
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:ref:`model validation <validating-objects>`.
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* The :ref:`force_insert <ref-models-force-insert>` argument of
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:meth:`.Model.save` now allows specifying a tuple of parent classes that must
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be forced to be inserted.
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* :meth:`.QuerySet.bulk_create` and :meth:`.QuerySet.abulk_create` methods now
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set the primary key on each model instance when the ``update_conflicts``
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parameter is enabled (if the database supports it).
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* The new :attr:`.UniqueConstraint.nulls_distinct` attribute allows customizing
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the treatment of ``NULL`` values on PostgreSQL 15+.
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* The new :func:`~django.shortcuts.aget_object_or_404` and
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:func:`~django.shortcuts.aget_list_or_404` asynchronous shortcuts allow
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asynchronous getting objects.
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* The new :func:`~django.db.models.aprefetch_related_objects` function allows
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asynchronous prefetching of model instances.
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* :meth:`.QuerySet.aiterator` now supports previous calls to
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``prefetch_related()``.
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* On MariaDB 10.7+, ``UUIDField`` is now created as ``UUID`` column rather than
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``CHAR(32)`` column. See the migration guide above for more details on
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:ref:`migrating-uuidfield`.
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* Django now supports `oracledb`_ version 1.3.2 or higher. Support for
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``cx_Oracle`` is deprecated as of this release and will be removed in Django
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6.0.
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Pagination
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~~~~~~~~~~
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* The new :attr:`django.core.paginator.Paginator.error_messages` argument
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allows customizing the error messages raised by :meth:`.Paginator.page`.
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Signals
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~~~~~~~
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* The new :meth:`.Signal.asend` and :meth:`.Signal.asend_robust` methods allow
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asynchronous signal dispatch. Signal receivers may be synchronous or
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asynchronous, and will be automatically adapted to the correct calling style.
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Templates
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~~~~~~~~~
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* The new :tfilter:`escapeseq` template filter applies :tfilter:`escape` to
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each element of a sequence.
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Tests
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~~~~~
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* :class:`~django.test.Client` and :class:`~django.test.AsyncClient` now
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provide asynchronous methods, using an ``a`` prefix:
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:meth:`~django.test.Client.asession`, :meth:`~django.test.Client.alogin`,
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:meth:`~django.test.Client.aforce_login`, and
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:meth:`~django.test.Client.alogout`.
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* :class:`~django.test.AsyncClient` now supports the ``follow`` parameter.
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* The new :option:`test --durations` option allows showing the duration of the
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slowest tests on Python 3.12+.
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Validators
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~~~~~~~~~~
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* The new ``offset`` argument of
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:class:`~django.core.validators.StepValueValidator` allows specifying an
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offset for valid values.
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|
.. _backwards-incompatible-5.0:
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|
|
Backwards incompatible changes in 5.0
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=====================================
|
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Database backend API
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--------------------
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This section describes changes that may be needed in third-party database
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backends.
|
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* ``DatabaseFeatures.supports_expression_defaults`` should be set to ``False``
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if the database doesn't support using database functions as defaults.
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* ``DatabaseFeatures.supports_default_keyword_in_insert`` should be set to
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``False`` if the database doesn't support the ``DEFAULT`` keyword in
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``INSERT`` queries.
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* ``DatabaseFeatures.supports_default_keyword_in_bulk_insert`` should be set to
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``False`` if the database doesn't support the ``DEFAULT`` keyword in bulk
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``INSERT`` queries.
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:mod:`django.contrib.gis`
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-------------------------
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* Support for GDAL 2.2 and 2.3 is removed.
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* Support for GEOS 3.6 and 3.7 is removed.
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:mod:`django.contrib.sitemaps`
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------------------------------
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* The ``django.contrib.sitemaps.ping_google()`` function and the
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``ping_google`` management command are removed as the Google
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Sitemaps ping endpoint is deprecated and will be removed in January 2024.
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* The ``django.contrib.sitemaps.SitemapNotFound`` exception class is removed.
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Dropped support for MySQL < 8.0.11
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----------------------------------
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Support for pre-releases of MySQL 8.0.x series is removed. Django 5.0 supports
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MySQL 8.0.11 and higher.
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Using ``create_defaults__exact`` may now be required with ``QuerySet.update_or_create()``
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-----------------------------------------------------------------------------------------
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:meth:`.QuerySet.update_or_create` now supports the parameter
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``create_defaults``. As a consequence, any models that have a field named
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``create_defaults`` that are used with an ``update_or_create()`` should specify
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the field in the lookup with ``create_defaults__exact``.
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|
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.. _migrating-uuidfield:
|
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Migrating existing ``UUIDField`` on MariaDB 10.7+
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-------------------------------------------------
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On MariaDB 10.7+, ``UUIDField`` is now created as ``UUID`` column rather than
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``CHAR(32)`` column. As a consequence, any ``UUIDField`` created in
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Django < 5.0 should be replaced with a ``UUIDField`` subclass backed by
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``CHAR(32)``::
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class Char32UUIDField(models.UUIDField):
|
|
def db_type(self, connection):
|
|
return "char(32)"
|
|
|
|
For example::
|
|
|
|
class MyModel(models.Model):
|
|
uuid = models.UUIDField(primary_key=True, default=uuid.uuid4)
|
|
|
|
Should become::
|
|
|
|
class Char32UUIDField(models.UUIDField):
|
|
def db_type(self, connection):
|
|
return "char(32)"
|
|
|
|
|
|
class MyModel(models.Model):
|
|
uuid = Char32UUIDField(primary_key=True, default=uuid.uuid4)
|
|
|
|
Running the :djadmin:`makemigrations` command will generate a migration
|
|
containing a no-op ``AlterField`` operation.
|
|
|
|
Miscellaneous
|
|
-------------
|
|
|
|
* The ``instance`` argument of the undocumented
|
|
``BaseModelFormSet.save_existing()`` method is renamed to ``obj``.
|
|
|
|
* The undocumented ``django.contrib.admin.helpers.checkbox`` is removed.
|
|
|
|
* Integer fields are now validated as 64-bit integers on SQLite to match the
|
|
behavior of ``sqlite3``.
|
|
|
|
* The undocumented ``Query.annotation_select_mask`` attribute is changed from a
|
|
set of strings to an ordered list of strings.
|
|
|
|
* ``ImageField.update_dimension_fields()`` is no longer called on the
|
|
``post_init`` signal if ``width_field`` and ``height_field`` are not set.
|
|
|
|
* :class:`~django.db.models.functions.Now` database function now uses
|
|
``LOCALTIMESTAMP`` instead of ``CURRENT_TIMESTAMP`` on Oracle.
|
|
|
|
* :attr:`.AdminSite.site_header` is now rendered in a ``<div>`` tag instead of
|
|
``<h1>``. Screen reader users rely on heading elements for navigation within
|
|
a page. Having two ``<h1>`` elements was confusing and the site header wasn't
|
|
helpful as it is repeated on all pages.
|
|
|
|
* In order to improve accessibility, the admin's main content area and header
|
|
content area are now rendered in a ``<main>`` and ``<header>`` tag instead of
|
|
``<div>``.
|
|
|
|
* On databases without native support for the SQL ``XOR`` operator, ``^`` as
|
|
the exclusive or (``XOR``) operator now returns rows that are matched by an
|
|
odd number of operands rather than exactly one operand. This is consistent
|
|
with the behavior of MySQL, MariaDB, and Python.
|
|
|
|
* The minimum supported version of ``asgiref`` is increased from 3.6.0 to
|
|
3.7.0.
|
|
|
|
* The minimum supported version of ``selenium`` is increased from 3.8.0 to
|
|
4.8.0.
|
|
|
|
* The ``AlreadyRegistered`` and ``NotRegistered`` exceptions are moved from
|
|
``django.contrib.admin.sites`` to ``django.contrib.admin.exceptions``.
|
|
|
|
* The minimum supported version of SQLite is increased from 3.21.0 to 3.27.0.
|
|
|
|
* Support for ``cx_Oracle`` < 8.3 is removed.
|
|
|
|
* Executing SQL queries before the app registry has been fully populated now
|
|
raises :exc:`RuntimeWarning`.
|
|
|
|
* :exc:`~django.core.exceptions.BadRequest` is raised for non-UTF-8 encoded
|
|
requests with the :mimetype:`application/x-www-form-urlencoded` content type.
|
|
See :rfc:`1866` for more details.
|
|
|
|
* The minimum supported version of ``colorama`` is increased to 0.4.6.
|
|
|
|
* The minimum supported version of ``docutils`` is increased to 0.19.
|
|
|
|
.. _deprecated-features-5.0:
|
|
|
|
Features deprecated in 5.0
|
|
==========================
|
|
|
|
Miscellaneous
|
|
-------------
|
|
|
|
* The ``DjangoDivFormRenderer`` and ``Jinja2DivFormRenderer`` transitional form
|
|
renderers are deprecated.
|
|
|
|
* Passing positional arguments ``name`` and ``violation_error_message`` to
|
|
:class:`~django.db.models.BaseConstraint` is deprecated in favor of
|
|
keyword-only arguments.
|
|
|
|
* ``request`` is added to the signature of :meth:`.ModelAdmin.lookup_allowed`.
|
|
Support for ``ModelAdmin`` subclasses that do not accept this argument is
|
|
deprecated.
|
|
|
|
* The ``get_joining_columns()`` method of ``ForeignObject`` and
|
|
``ForeignObjectRel`` is deprecated. Starting with Django 6.0,
|
|
``django.db.models.sql.datastructures.Join`` will no longer fallback to
|
|
``get_joining_columns()``. Subclasses should implement
|
|
``get_joining_fields()`` instead.
|
|
|
|
* The ``ForeignObject.get_reverse_joining_columns()`` method is deprecated.
|
|
|
|
* The default scheme for ``forms.URLField`` will change from ``"http"`` to
|
|
``"https"`` in Django 6.0.
|
|
|
|
* Support for calling ``format_html()`` without passing args or kwargs will be
|
|
removed.
|
|
|
|
* Support for ``cx_Oracle`` is deprecated in favor of `oracledb`_ 1.3.2+ Python
|
|
driver.
|
|
|
|
* ``DatabaseOperations.field_cast_sql()`` is deprecated in favor of
|
|
``DatabaseOperations.lookup_cast()``. Starting with Django 6.0,
|
|
``BuiltinLookup.process_lhs()`` will no longer call ``field_cast_sql()``.
|
|
Third-party database backends should implement ``lookup_cast()`` instead.
|
|
|
|
* The ``django.db.models.enums.ChoicesMeta`` metaclass is renamed to
|
|
``ChoicesType``.
|
|
|
|
* The ``Prefetch.get_current_queryset()`` method is deprecated.
|
|
|
|
* The ``get_prefetch_queryset()`` method of related managers and descriptors
|
|
is deprecated. Starting with Django 6.0, ``get_prefetcher()`` and
|
|
``prefetch_related_objects()`` will no longer fallback to
|
|
``get_prefetch_queryset()``. Subclasses should implement
|
|
``get_prefetch_querysets()`` instead.
|
|
|
|
.. _`oracledb`: https://oracle.github.io/python-oracledb/
|
|
|
|
Features removed in 5.0
|
|
=======================
|
|
|
|
These features have reached the end of their deprecation cycle and are removed
|
|
in Django 5.0.
|
|
|
|
See :ref:`deprecated-features-4.0` for details on these changes, including how
|
|
to remove usage of these features.
|
|
|
|
* The ``SERIALIZE`` test setting is removed.
|
|
|
|
* The undocumented ``django.utils.baseconv`` module is removed.
|
|
|
|
* The undocumented ``django.utils.datetime_safe`` module is removed.
|
|
|
|
* The default value of the ``USE_TZ`` setting is changed from ``False`` to
|
|
``True``.
|
|
|
|
* The default sitemap protocol for sitemaps built outside the context of a
|
|
request is changed from ``'http'`` to ``'https'``.
|
|
|
|
* The ``extra_tests`` argument for ``DiscoverRunner.build_suite()`` and
|
|
``DiscoverRunner.run_tests()`` is removed.
|
|
|
|
* The ``django.contrib.postgres.aggregates.ArrayAgg``, ``JSONBAgg``, and
|
|
``StringAgg`` aggregates no longer return ``[]``, ``[]``, and ``''``,
|
|
respectively, when there are no rows.
|
|
|
|
* The ``USE_L10N`` setting is removed.
|
|
|
|
* The ``USE_DEPRECATED_PYTZ`` transitional setting is removed.
|
|
|
|
* Support for ``pytz`` timezones is removed.
|
|
|
|
* The ``is_dst`` argument is removed from:
|
|
|
|
* ``QuerySet.datetimes()``
|
|
* ``django.utils.timezone.make_aware()``
|
|
* ``django.db.models.functions.Trunc()``
|
|
* ``django.db.models.functions.TruncSecond()``
|
|
* ``django.db.models.functions.TruncMinute()``
|
|
* ``django.db.models.functions.TruncHour()``
|
|
* ``django.db.models.functions.TruncDay()``
|
|
* ``django.db.models.functions.TruncWeek()``
|
|
* ``django.db.models.functions.TruncMonth()``
|
|
* ``django.db.models.functions.TruncQuarter()``
|
|
* ``django.db.models.functions.TruncYear()``
|
|
|
|
* The ``django.contrib.gis.admin.GeoModelAdmin`` and ``OSMGeoAdmin`` classes
|
|
are removed.
|
|
|
|
* The undocumented ``BaseForm._html_output()`` method is removed.
|
|
|
|
* The ability to return a ``str``, rather than a ``SafeString``, when rendering
|
|
an ``ErrorDict`` and ``ErrorList`` is removed.
|
|
|
|
See :ref:`deprecated-features-4.1` for details on these changes, including how
|
|
to remove usage of these features.
|
|
|
|
* The ``SitemapIndexItem.__str__()`` method is removed.
|
|
|
|
* The ``CSRF_COOKIE_MASKED`` transitional setting is removed.
|
|
|
|
* The ``name`` argument of ``django.utils.functional.cached_property()`` is
|
|
removed.
|
|
|
|
* The ``opclasses`` argument of
|
|
``django.contrib.postgres.constraints.ExclusionConstraint`` is removed.
|
|
|
|
* The undocumented ability to pass ``errors=None`` to
|
|
``SimpleTestCase.assertFormError()`` and ``assertFormsetError()`` is removed.
|
|
|
|
* ``django.contrib.sessions.serializers.PickleSerializer`` is removed.
|
|
|
|
* The usage of ``QuerySet.iterator()`` on a queryset that prefetches related
|
|
objects without providing the ``chunk_size`` argument is no longer allowed.
|
|
|
|
* Passing unsaved model instances to related filters is no longer allowed.
|
|
|
|
* ``created=True`` is required in the signature of
|
|
``RemoteUserBackend.configure_user()`` subclasses.
|
|
|
|
* Support for logging out via ``GET`` requests in the
|
|
``django.contrib.auth.views.LogoutView`` and
|
|
``django.contrib.auth.views.logout_then_login()`` is removed.
|
|
|
|
* The ``django.utils.timezone.utc`` alias to ``datetime.timezone.utc`` is
|
|
removed.
|
|
|
|
* Passing a response object and a form/formset name to
|
|
``SimpleTestCase.assertFormError()`` and ``assertFormSetError()`` is no
|
|
longer allowed.
|
|
|
|
* The ``django.contrib.gis.admin.OpenLayersWidget`` is removed.
|
|
|
|
+ The ``django.contrib.auth.hashers.CryptPasswordHasher`` is removed.
|
|
|
|
* The ``"django/forms/default.html"`` and
|
|
``"django/forms/formsets/default.html"`` templates are removed.
|
|
|
|
* The default form and formset rendering style is changed to the div-based.
|
|
|
|
* Passing ``nulls_first=False`` or ``nulls_last=False`` to ``Expression.asc()``
|
|
and ``Expression.desc()`` methods, and the ``OrderBy`` expression is no
|
|
longer allowed.
|