Who contributed to Django on July 14, 2026?

3 developers shipped this update, including medmunds, Charul00, and dependabot.

What were the notable Django updates?

Refs #37187 -- Implemented warn_about_implementation() deprecation utility, Fixed #37187, #37190 -- Pointed ModelAdmin warnings to the deprecated code, and Fixed #37187, #37190 -- Pointed ModelAdmin warnings to the deprecated code.

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DJANGO CLEANS UP DEPRECATION WARNINGS, MOVES MIDDLEWAREMIXIN

By RepoJournal · Filed 06:55 UTC on July 14, 2026 · About Django

3 people shipped this

dependabot @dependabot 4 cited

medmunds @medmunds 3 cited

Charul00 @Charul00 2 cited

Django fixed a critical issue where deprecation warnings pointed to the wrong code, while quietly relocating MiddlewareMixin to its proper home.

The core team implemented a new `warn_about_implementation()` utility [1] that fixes a longstanding problem: ModelAdmin deprecation warnings were pointing developers to wsgiref instead of their own deprecated code [2]. This affects three high-impact deprecations on `get_list_select_related()`, `get_actions()`, and `get_action_choices()` [3], ensuring developers actually see where they need to fix things. Separately, MiddlewareMixin has been moved out of `django.utils.deprecation` and into the middleware package [4], with backward compatibility maintained for the old import path [5]. On the djangoproject.com side, dependency maintenance continues with black 26.5.1 fixing unstable formatting on annotated assignments [6], pymdown-extensions 11.0.1 patching regex inefficiencies [7], and routine updates to sentry-sdk [8] and Pillow 12.3.0 [9].

Action items

→ Review ModelAdmin deprecation warnings if you subclass it - they now point to your code instead of framework internals django/django [plan]
→ Update internal imports of MiddlewareMixin to use django.middleware instead of django.utils.deprecation django/django [plan]
→ Upgrade black to 26.5.1+ in your linting pipeline if you use annotated assignments with comments django/djangoproject.com [monitor]

References

[1] Refs #37187 -- Implemented warn_about_implementation() deprecation utility. django/django
[2] Fixed #37187, #37190 -- Pointed ModelAdmin warnings to the deprecated code. ↗ django/django
[3] Fixed #37187, #37190 -- Pointed ModelAdmin warnings to the deprecated code. django/django
[4] Fixed #37178 -- Moved MiddlewareMixin out of utils.deprecation. ↗ django/django
[5] Fixed #37178 -- Moved MiddlewareMixin out of utils.deprecation. django/django
[6] Bump black from 26.3.1 to 26.5.1 in /requirements ↗ django/djangoproject.com
[7] Bump pymdown-extensions from 10.21.3 to 11.0.1 in /requirements ↗ django/djangoproject.com
[8] Bump sentry-sdk from 2.63.0 to 2.64.0 in /requirements ↗ django/djangoproject.com
[9] Bump pillow from 12.2.0 to 12.3.0 in /requirements ↗ django/djangoproject.com

Quick answers

What shipped in Django on July 14, 2026?: Django fixed a critical issue where deprecation warnings pointed to the wrong code, while quietly relocating MiddlewareMixin to its proper home. In total, 6 commits and 8 pull requests landed.
Who contributed to Django on July 14, 2026?: 3 developers shipped this update, including medmunds, Charul00, and dependabot.
What were the notable Django updates?: Refs #37187 -- Implemented warn_about_implementation() deprecation utility, Fixed #37187, #37190 -- Pointed ModelAdmin warnings to the deprecated code, and Fixed #37187, #37190 -- Pointed ModelAdmin warnings to the deprecated code.

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