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21b1b1fc03
Thanks Moataz Al-Sharida and nawaik for reports. Co-authored-by: Shai Berger <shai@platonix.com> Co-authored-by: nessita <124304+nessita@users.noreply.github.com>
77 lines
3.3 KiB
Plaintext
77 lines
3.3 KiB
Plaintext
==========================
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Django 4.2.1 release notes
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==========================
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*May 3, 2023*
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Django 4.2.1 fixes a security issue with severity "low" and several bugs in
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4.2.
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CVE-2023-31047: Potential bypass of validation when uploading multiple files using one form field
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=================================================================================================
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Uploading multiple files using one form field has never been supported by
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:class:`.forms.FileField` or :class:`.forms.ImageField` as only the last
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uploaded file was validated. Unfortunately, :ref:`uploading_multiple_files`
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topic suggested otherwise.
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In order to avoid the vulnerability, :class:`~django.forms.ClearableFileInput`
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and :class:`~django.forms.FileInput` form widgets now raise ``ValueError`` when
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the ``multiple`` HTML attribute is set on them. To prevent the exception and
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keep the old behavior, set ``allow_multiple_selected`` to ``True``.
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For more details on using the new attribute and handling of multiple files
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through a single field, see :ref:`uploading_multiple_files`.
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Bugfixes
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========
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* Fixed a regression in Django 4.2 that caused a crash of ``QuerySet.defer()``
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when deferring fields by attribute names (:ticket:`34458`).
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* Fixed a regression in Django 4.2 that caused a crash of
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:class:`~django.contrib.postgres.search.SearchVector` function with ``%``
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characters (:ticket:`34459`).
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* Fixed a regression in Django 4.2 that caused aggregation over query that
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uses explicit grouping to group against the wrong columns (:ticket:`34464`).
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* Reallowed, following a regression in Django 4.2, setting the
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``"cursor_factory"`` option in :setting:`OPTIONS` on PostgreSQL
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(:ticket:`34466`).
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* Enforced UTF-8 client encoding on PostgreSQL, following a regression in
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Django 4.2 (:ticket:`34470`).
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* Fixed a regression in Django 4.2 where ``i18n_patterns()`` didn't respect the
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``prefix_default_language`` argument when a fallback language of the default
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language was used (:ticket:`34455`).
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* Fixed a regression in Django 4.2 where translated URLs of the default
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language from ``i18n_patterns()`` with ``prefix_default_language`` set to
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``False`` raised 404 errors for a request with a different language
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(:ticket:`34515`).
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* Fixed a regression in Django 4.2 where creating copies and deep copies of
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``HttpRequest``, ``HttpResponse``, and their subclasses didn't always work
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correctly (:ticket:`34482`, :ticket:`34484`).
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* Fixed a regression in Django 4.2 where ``timesince`` and ``timeuntil``
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template filters returned incorrect results for a datetime with a non-UTC
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timezone when a time difference is less than 1 day (:ticket:`34483`).
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* Fixed a regression in Django 4.2 that caused a crash of
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:class:`~django.contrib.postgres.search.SearchHeadline` function with
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``psycopg`` 3 (:ticket:`34486`).
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* Fixed a regression in Django 4.2 that caused incorrect ``ClearableFileInput``
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margins in the admin (:ticket:`34506`).
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* Fixed a regression in Django 4.2 where breadcrumbs didn't appear on admin
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site app index views (:ticket:`34512`).
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* Made squashing migrations reduce ``AddIndex``, ``RemoveIndex``,
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``RenameIndex``, and ``CreateModel`` operations which allows removing a
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deprecated ``Meta.index_together`` option from historical migrations and use
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``Meta.indexes`` instead (:ticket:`34525`).
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