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Code Issues 16 Releases Wiki Activity
django/docs/releases/4.2.5.txt

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Added stub release notes for 4.2.5.
2023-08-01 17:52:36 +00:00
==========================
Django 4.2.5 release notes
==========================
*Expected September 4, 2023*
Django 4.2.5 fixes several bugs in 4.2.4.
Bugfixes
========
Fixed #34754 -- Fixed JSONField check constraints validation on NULL values. The __isnull lookup of JSONField must special case Value(None, JSONField()) left-hand-side in order to be coherent with its convoluted null handling. Since psycopg>=3 offers no way to pass a NULL::jsonb the issue is resolved by optimizing IsNull(Value(None), True | False) to True | False. Regression in 5c23d9f0c32f166c81ecb6f3f01d5077a6084318. Thanks Alexandre Collet for the report.
2023-08-03 00:47:49 +00:00
* Fixed a regression in Django 4.2 that caused an incorrect validation of
``CheckConstraints`` on ``__isnull`` lookups against ``JSONField``
(:ticket:`34754`).