`.
- 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 [`RuntimeWarning`](https://docs.python.org/3/library/exceptions.html#RuntimeWarning).
- [`BadRequest`](/es/5.2/ref/exceptions/#django.core.exceptions.BadRequest) is raised for non-UTF-8 encoded
requests with the `application/x-www-form-urlencoded` content type.
See [**RFC 1866**](https://datatracker.ietf.org/doc/html/rfc1866.html) 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.
- Filtering querysets against overflowing integer values now always returns an
empty queryset. As a consequence, you may need to use `ExpressionWrapper()`
to [explicitly wrap](/es/5.2/ref/models/expressions/#using-f-with-annotations) arithmetic against
integer fields in such cases.
## Features deprecated in 5.0
### Miscellaneous
- The `DjangoDivFormRenderer` and `Jinja2DivFormRenderer` transitional form
renderers are deprecated.
- Passing positional arguments `name` and `violation_error_message` to
[`BaseConstraint`](/es/5.2/ref/models/constraints/#django.db.models.BaseConstraint) is deprecated in favor of
keyword-only arguments.
- `request` is added to the signature of [`ModelAdmin.lookup_allowed()`](/es/5.2/ref/contrib/admin/#django.contrib.admin.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. Set [`FORMS_URLFIELD_ASSUME_HTTPS`](/es/5.2/ref/settings/#std-setting-FORMS_URLFIELD_ASSUME_HTTPS)
transitional setting to `True` to opt into assuming `"https"` during the
Django 5.x release cycle.
- `FORMS_URLFIELD_ASSUME_HTTPS` transitional setting is deprecated.
- Support for calling `format_html()` without passing args or kwargs is
deprecated.
- Support for `cx_Oracle` is deprecated in favor of [oracledb](https://oracle.github.io/python-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.
## Features removed in 5.0
These features have reached the end of their deprecation cycle and are removed
in Django 5.0.
See [Features deprecated in 4.0](/es/5.2/releases/4.0/#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 [Features deprecated in 4.1](/es/5.2/releases/4.1/#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.