mirror of
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65ad4ade74
Previously the order was always extra_fields + model_fields + annotations with
respective local ordering inferred from the insertion order of *selected.
This commits introduces a new `Query.selected` propery that keeps tracks of the
global select order as specified by on values assignment. This is crucial
feature to allow the combination of queries mixing annotations and table
references.
It also allows the removal of the re-ordering shenanigans perform by
ValuesListIterable in order to re-map the tuples returned from the database
backend to the order specified by values_list() as they'll be in the right
order at query compilation time.
Refs #28553 as the initially reported issue that was only partially fixed
for annotations by d6b6e5d0fd.
Thanks Mariusz Felisiak and Sarah Boyce for review.
290 lines
5.1 KiB
Plaintext
290 lines
5.1 KiB
Plaintext
============================================
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Django 5.2 release notes - UNDER DEVELOPMENT
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============================================
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*Expected April 2025*
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Welcome to Django 5.2!
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These release notes cover the :ref:`new features <whats-new-5.2>`, as well as
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some :ref:`backwards incompatible changes <backwards-incompatible-5.2>` you
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should be aware of when upgrading from Django 5.1 or earlier. We've
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:ref:`begun the deprecation process for some features
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<deprecated-features-5.2>`.
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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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Django 5.2 is designated as a :term:`long-term support release
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<Long-term support release>`. It will receive security updates for at least
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three years after its release. Support for the previous LTS, Django 4.2, will
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end in April 2026.
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Python compatibility
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====================
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Django 5.2 supports Python 3.10, 3.11, 3.12, and 3.13. We **highly recommend**
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and only officially support the latest release of each series.
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.. _whats-new-5.2:
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What's new in Django 5.2
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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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* The ``admin/base.html`` template now has a new block
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:ref:`extrabody <extrabody>` for adding custom code before the closing
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``</body>`` tag.
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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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870,000 to 1,000,000.
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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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* ...
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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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* ...
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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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* All :class:`~django.utils.feedgenerator.SyndicationFeed` classes now support
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a ``stylesheets`` attribute. If specified, an ``<? xml-stylesheet ?>``
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processing instruction will be added to the top of the document for each
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stylesheet in the given list. See :ref:`feed-stylesheets` for more details.
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Asynchronous views
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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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Database backends
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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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* Tuple items of :class:`EmailMessage.attachments
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<django.core.mail.EmailMessage>` and
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:class:`EmailMultiAlternatives.attachments
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<django.core.mail.EmailMultiAlternatives>` are now named tuples, as opposed
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to regular tuples.
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* :attr:`EmailMultiAlternatives.alternatives
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<django.core.mail.EmailMultiAlternatives.alternatives>` is now a list of
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named tuples, as opposed to regular tuples.
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* The new :meth:`~django.core.mail.EmailMultiAlternatives.body_contains` method
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returns a boolean indicating whether a provided text is contained in the
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email ``body`` and in all attached MIME type ``text/*`` alternatives.
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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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* ...
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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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* The ``SELECT`` clause generated when using
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:meth:`QuerySet.values()<django.db.models.query.QuerySet.values>` and
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:meth:`~django.db.models.query.QuerySet.values_list` now matches the
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specified order of the referenced expressions. Previously the order was based
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of a set of counterintuitive rules which made query combination through
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methods such as
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:meth:`QuerySet.union()<django.db.models.query.QuerySet.union>` unpredictable.
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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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* ...
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Validators
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~~~~~~~~~~
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* ...
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.. _backwards-incompatible-5.2:
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Backwards incompatible changes in 5.2
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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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:mod:`django.contrib.gis`
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-------------------------
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* Support for PostGIS 3.0 is removed.
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Dropped support for PostgreSQL 13
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---------------------------------
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Upstream support for PostgreSQL 13 ends in November 2025. Django 5.2 supports
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PostgreSQL 14 and higher.
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Miscellaneous
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-------------
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* ...
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.. _deprecated-features-5.2:
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Features deprecated in 5.2
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==========================
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Miscellaneous
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-------------
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* The ``all`` argument for the ``django.contrib.staticfiles.finders.find()``
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function is deprecated in favor of the ``find_all`` argument.
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