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f6405c0b8e
The optimization introduced in7acef095d7did not properly handle deletion involving filters against aggregate annotations. It initially was surfaced by a MariaDB test failure but misattributed to an undocumented change in behavior that resulted in the systemic generation of poorly performing database queries in5b83bae031. Thanks Anton Plotkin for the report. Refs #23576.
62 lines
2.4 KiB
Plaintext
62 lines
2.4 KiB
Plaintext
==========================
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Django 3.1.1 release notes
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==========================
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*Expected September 1, 2020*
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Django 3.1.1 fixes several bugs in 3.1.
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Bugfixes
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========
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* Fixed wrapping of translated action labels in the admin's navigation sidebar
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for East Asian languages (:ticket:`31853`).
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* Fixed wrapping of long model names in the admin's navigation sidebar
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(:ticket:`31854`).
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* Fixed encoding session data while upgrading multiple instances of the same
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project to Django 3.1 (:ticket:`31864`).
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* Adjusted admin's navigation sidebar template to reduce debug logging when
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rendering (:ticket:`31865`).
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* Fixed a data loss possibility in the
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:meth:`~django.db.models.query.QuerySet.select_for_update()`. When using
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related fields pointing to a proxy model in the ``of`` argument, the
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corresponding model was not locked (:ticket:`31866`).
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* Fixed a data loss possibility, following a regression in Django 2.0, when
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copying model instances with a cached fields value (:ticket:`31863`).
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* Fixed a regression in Django 3.1 that caused a crash when decoding an invalid
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session data (:ticket:`31895`).
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* Reverted a deprecation in Django 3.1 that caused a crash when passing
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deprecated keyword arguments to a queryset in
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``TemplateView.get_context_data()`` (:ticket:`31877`).
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* Enforced thread sensitivity of the :class:`MiddlewareMixin.process_request()
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<django.utils.deprecation.MiddlewareMixin>` and ``process_response()`` hooks
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when in an async context (:ticket:`31905`).
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* Fixed ``__in`` lookup on key transforms for
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:class:`~django.db.models.JSONField` with MariaDB, MySQL, Oracle, and SQLite
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(:ticket:`31936`).
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* Fixed a regression in Django 3.1 that caused permission errors in
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``CommonPasswordValidator`` and ``settings.py`` generated by the
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:djadmin:`startproject` command, when user didn't have permissions to all
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intermediate directories in a Django installation path (:ticket:`31912`).
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* Fixed detecting an async ``get_response`` callable in various builtin
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middlewares (:ticket:`31928`).
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* Fixed a ``QuerySet.order_by()`` crash on PostgreSQL when ordering and
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grouping by :class:`~django.db.models.JSONField` with a custom
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:attr:`~django.db.models.JSONField.decoder` (:ticket:`31956`).
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* Fixed a ``QuerySet.delete()`` crash on MySQL, following a performance
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regression in Django 3.1 on MariaDB 10.3.2+, when filtering against an
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aggregate function (:ticket:`31965`).
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