django.git/docs/ref/checks.txt, branch main

Fixed #10919 -- Added delete_confirmation_max_display to ModelAdmin.

2026-04-23T02:22:55Z

The new ModelAdmin.delete_confirmation_max_display attribute allows limiting the number of related objects shown on the delete confirmation page. When the limit is reached, a "…and N more objects." message is shown. The feature relies on a new truncated_unordered_list template filter added to django.contrib.admin.templatetags.admin_filters. Thanks Jacob Tyler Walls for the review and guidance, Tobias McNulty for the report, and terminator14 for the solution suggested.

Fixed #37024 -- Made SITE_ID system check validation use Site._meta.pk.

2026-04-19T06:04:22Z

Refs #36305 -- Fixed indentation in checks and middleware documentation.

2025-12-22T19:42:00Z

Fixed #36806 -- Added system check for null kwarg in GeneratedField.

2025-12-22T14:41:41Z

The null argument has no effect on GeneratedField since the nullability of the column depends on the database and expression used.

Fixed #36594 -- Improved UniqueConstraint's nulls_distinct system check message.

2025-12-16T20:06:10Z

Clarified that the nulls_distinct argument is not supported, as opposed to certain values for the argument. Thanks Russell Owen for the report.

Refs #21961 -- Added DatabaseFeatures.supports_on_delete_db_(cascade/null) feature flags.

2025-11-23T10:53:24Z

Needed on MongoDB. Co-Authored-By: Mariusz Felisiak

Refs #36663, #36739 -- Added release note for running checks against all databases.

2025-11-20T14:54:45Z

Fixed #26609 -- Extended fields.E004 system check for unordered iterables.

2025-11-19T07:22:44Z

Co-authored-by: Karl Wooster

Fixed #24920 -- Added support for DecimalField with no precision.

2025-11-17T12:43:47Z

Thanks Lily for the review.

Fixed #21961 -- Added support for database-level delete options for ForeignKey.

2025-10-18T13:03:50Z

Thanks Simon Charette for pair programming. Co-authored-by: Nick Stefan Co-authored-by: Akash Kumar Sen <71623442+Akash-Kumar-Sen@users.noreply.github.com> Co-authored-by: Simon Charette