Release notes Django 4.0.2 release notes

Fixed a bug in Django 4.0 that caused a crash of QuerySet.aggregate() after annotate() on an aggregate function with a default (#33468).

Release notes Django 4.1 release notes What’s new in Django 4.1Minor features

after database server restart. QuerySet.bulk_create() now supports updating fields when a row insertion fails uniqueness constraints. This is supported on MariaDB, MySQL, PostgreSQL, and SQLite 3.24+. QuerySet.iterator() now supports prefetching related objects as long as the chunk_size argument is provided.

Release notes Django 4.1 release notes

The default_app_config application configuration variable is removed. TransactionTestCase.assertQuerysetEqual() no longer calls repr() on a queryset when compared to string values. The django.core.cache.backends.memcached.MemcachedCache backend is removed. Support for the pre-Django 3.2 format of messages used by django.contrib.messages.storage.cookie.CookieStorage is removed.

Release notes Django 4.1.4 release notes

Fixed a bug in Django 4.1 that caused a crash of QuerySet.bulk_create() with "pk" in unique_fields (#34177). Fixed a bug in Django 4.1 that caused a crash of QuerySet.bulk_create() on fields with db_column (#34171).

Release notes Django 4.2 release notes What’s new in Django 4.2Minor features

The new trigram_strict_word_similar lookup, and the TrigramStrictWordSimilarity() and TrigramStrictWordDistance() expressions allow using trigram strict word similarity. The arrayfield.overlap lookup now supports QuerySet.values() and values_list() as a right-hand side.

Release notes Django 4.2.2 release notes

Fixed a regression in Django 4.2 that caused a crash of QuerySet.defer() when passing a ManyToManyField or GenericForeignKey reference. While doing so is a no-op, it was allowed in older version (#34570).

Release notes Django 4.2.5 release notes

Fixed a regression in Django 4.2 that caused a crash of a queryset when filtering against deeply nested OuterRef() annotations (#34803).

Release notes Django 5.0 release notes

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.

Release notes Django 5.0.2 release notes

Fixed a regression in Django 5.0 that caused a crash of FilteredRelation() with querysets as right-hand sides (#35135). FilteredRelation() now raises a ValueError on querysets as right-hand sides.

Release notes Django 5.0.3 release notes

Fixed a regression in Django 5.0 that caused a crash when reloading a test database and a base queryset for a base manager used prefetch_related() (#35238).

Release notes Django 5.2 release notes Features deprecated in 5.2

The following methods now have alters_data=True set to prevent side effects when rendering a template context: UserManager.create_user() UserManager.acreate_user() UserManager.create_superuser() UserManager.acreate_superuser() QuerySet.create() QuerySet.acreate() QuerySet.bulk_create() QuerySet.abulk_create() QuerySet.get_or_create() QuerySet.aget_or_create() QuerySet.update_or_create() QuerySet.aupdate_or_create() The minimum supported version of oracledb is increased from 1.3.2 to 2.3.0.

Release notes Django 5.2.1 release notes

Fixed a regression in Django 5.2 that caused a crash of QuerySet.bulk_create() with nullable geometry fields on PostGIS (#36289). Fixed a regression in Django 5.2 that caused fields to be incorrectly selected when using QuerySet.alias() after values() (#36299).

Release notes Django 5.2.2 release notes

Fixed a regression in Django 5.2 that caused a crash when no arguments were passed into QuerySet.union() (#36388). Fixed a regression in Django 5.2 where subclasses of RemoteUserMiddleware that had overridden process_request() were no longer supported (#36390).

Release notes Django 5.2.3 release notes

Fixed a regression in Django 5.2 that caused QuerySet.bulk_update() to incorrectly convert None to JSON null instead of SQL NULL for JSONField (#36419).

Release notes Django 5.2.9 release notes

Fixed a regression in Django 5.2.2 that caused a crash when using aggregate functions with an empty Q filter over a queryset with annotations (#36751).

Release notes Django 6.0 release notes What’s new in Django 6.0Minor features

QuerySet.raw() now supports models with a CompositePrimaryKey. Subqueries returning a CompositePrimaryKey can now be used as the target of lookups other than __in, such as __exact. JSONField now supports negative array indexing on SQLite.

Release notes Django 6.0 release notes

Support for cx_Oracle is removed. The ChoicesMeta alias to django.db.models.enums.ChoicesType is removed. The Prefetch.get_current_queryset() method is removed. The get_prefetch_queryset() method of related managers and descriptors is removed. get_prefetcher() and prefetch_related_objects() no longer fall back to get_prefetch_queryset().

Release notes Django 1.0 release notes What’s new in Django 1.0

Django’s object-relational mapper – the component which provides the mapping between Django model classes and your database, and which mediates your database queries – has been dramatically improved by a massive refactoring.

Release notes Django 1.0.1 release notes

Multiple fixes for Django’s support of Oracle databases, including pagination support for GIS QuerySets, more efficient slicing of results and improved introspection of existing databases.

Release notes Django 1.11 release notes Backwards incompatible changes in 1.11

This section describes changes that may be needed in third-party database backends. The DatabaseOperations.time_trunc_sql() method is added to support TimeField truncation.