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271 lines
4.6 KiB
Plaintext
271 lines
4.6 KiB
Plaintext
============================================
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Django 4.2 release notes - UNDER DEVELOPMENT
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============================================
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*Expected April 2023*
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Welcome to Django 4.2!
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These release notes cover the :ref:`new features <whats-new-4.2>`, as well as
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some :ref:`backwards incompatible changes <backwards-incompatible-4.2>` you'll
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want to be aware of when upgrading from Django 4.1 or earlier. We've
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:ref:`begun the deprecation process for some features
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<deprecated-features-4.2>`.
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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 4.2 supports Python 3.8, 3.9, 3.10, and 3.11. We **highly recommend**
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and only officially support the latest release of each series.
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.. _whats-new-4.2:
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What's new in Django 4.2
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========================
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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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* ...
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:mod:`django.contrib.admindocs`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* ...
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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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390,000 to 480,000.
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:mod:`django.contrib.contenttypes`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* ...
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:mod:`django.contrib.gis`
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~~~~~~~~~~~~~~~~~~~~~~~~~
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* The :doc:`GeoJSON serializer </ref/contrib/gis/serializers>` now outputs the
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``id`` key for serialized features, which defaults to the primary key of
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objects.
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:mod:`django.contrib.messages`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* ...
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:mod:`django.contrib.postgres`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* The new :lookup:`trigram_strict_word_similar` lookup, and the
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:class:`TrigramStrictWordSimilarity()
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<django.contrib.postgres.search.TrigramStrictWordSimilarity>` and
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:class:`TrigramStrictWordDistance()
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<django.contrib.postgres.search.TrigramStrictWordDistance>` expressions allow
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using trigram strict word similarity.
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:mod:`django.contrib.redirects`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* ...
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:mod:`django.contrib.sessions`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* ...
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:mod:`django.contrib.sitemaps`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* ...
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:mod:`django.contrib.sites`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* ...
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:mod:`django.contrib.staticfiles`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* ...
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:mod:`django.contrib.syndication`
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* ...
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Cache
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~~~~~
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* ...
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CSRF
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~~~~
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* ...
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Decorators
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~~~~~~~~~~
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* ...
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Email
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~~~~~
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* ...
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Error Reporting
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~~~~~~~~~~~~~~~
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* ...
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File Storage
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~~~~~~~~~~~~
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* ...
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File Uploads
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~~~~~~~~~~~~
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* ...
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Forms
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~~~~~
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* ...
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Generic Views
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~~~~~~~~~~~~~
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* ...
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Internationalization
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~~~~~~~~~~~~~~~~~~~~
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* ...
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Logging
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~~~~~~~
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* ...
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Management Commands
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~~~~~~~~~~~~~~~~~~~
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* :djadmin:`makemessages` command now supports locales with private sub-tags
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such as ``nl_NL-x-informal``.
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* The new :option:`makemigrations --update` option merges model changes into
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the latest migration and optimizes the resulting operations.
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Migrations
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~~~~~~~~~~
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* ...
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Models
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~~~~~~
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* ...
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Requests and Responses
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~~~~~~~~~~~~~~~~~~~~~~
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* ...
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Security
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~~~~~~~~
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* ...
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Serialization
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~~~~~~~~~~~~~
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* ...
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Signals
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~~~~~~~
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* ...
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Templates
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~~~~~~~~~
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* ...
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Tests
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~~~~~
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* ...
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URLs
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~~~~
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* ...
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Utilities
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~~~~~~~~~
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* The new ``encoder`` parameter for :meth:`django.utils.html.json_script`
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function allows customizing a JSON encoder class.
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Validators
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~~~~~~~~~~
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* ...
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.. _backwards-incompatible-4.2:
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Backwards incompatible changes in 4.2
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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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* ...
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Dropped support for MariaDB 10.3
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--------------------------------
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Upstream support for MariaDB 10.3 ends in May 2023. Django 4.2 supports MariaDB
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10.4 and higher.
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Dropped support for PostgreSQL 11
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---------------------------------
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Upstream support for PostgreSQL 11 ends in November 2023. Django 4.2 supports
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PostgreSQL 12 and higher.
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Miscellaneous
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-------------
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* The undocumented ``SimpleTemplateResponse.rendering_attrs`` and
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``TemplateResponse.rendering_attrs`` are renamed to ``non_picklable_attrs``.
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* The undocumented ``django.http.multipartparser.parse_header()`` function is
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removed. Use ``django.utils.http.parse_header_parameters()`` instead.
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.. _deprecated-features-4.2:
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Features deprecated in 4.2
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==========================
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Miscellaneous
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-------------
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* The ``BaseUserManager.make_random_password()`` method is deprecated. See
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`recipes and best practices
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<https://docs.python.org/3/library/secrets.html#recipes-and-best-practices>`_
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for using Python's :py:mod:`secrets` module to generate passwords.
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