Django Fellow Report - Jacob - 2026

Django Internals
27

Week ending 2026-06-21 (Week 25)

Tended to a flurry of fixes before the non-release-blocker bugfix freeze for Django 6.1 in a few days. Also chipped away at some performance improvements for ASGI projects using sync middleware.

Triaged
#37140 (Document how to handle NULL when using filter()/exclude() with __in subqueries) – Django accepted
#34563 (ManifestStaticFilesStorage support for CSS module scripts in Javascript files.) – Django Someday/Maybe → accepted
#37168 (Readonly fields with db_default display DatabaseDefault representation) – Django accepted
#37169 (Screenshot test is failing because the language has been translated.) – Django accepted
#5929 (Allow Fields to use multiple db columns (complex datatypes)) – Django duplicate → accepted
#37166 (System check for developer/test MAILERS in production) – Django accepted
#37115 (Add support for Generic Relations / Table-Valued Expressions in the ORM) – Django accepted → Someday/Maybe
#37171 (Targeting a subquery with __exact requires limiting to one result even when wrapped by explicit Subquery) – Django invalid
#37177 (Performance issue in Async Middleware handling.) – Django accepted
Reviewed
Fixed #37140 -- Documented NULL handling for __in subquery lookups. by joseanoxp · Pull Request #21492 · django/django · GitHub
Fixed #37143 -- Added missing chunk_size=None check to QuerySet.aiterator(). by ZhengKangYang · Pull Request #21425 · django/django · GitHub
Fixed #37169 -- RTL screenshot test failure caused by translated text. by Antoliny0919 · Pull Request #21479 · django/django · GitHub
Removed selenium<4.44.0 version pin. by sarahboyce · Pull Request #21490 · django/django · GitHub
Refs #37142 -- Removed docs for django.utils.warnings.django_file_prefixes(). by nessita · Pull Request #21493 · django/django · GitHub
Refs #32577 -- Added DEFAULT_PK_FIELD for implicit primary keys. by BaderEddineBenhirt · Pull Request #21400 · django/django · GitHub
Fixed #37176 -- Made Action importable from django.contrib.admin. by felixxm · Pull Request #21505 · django/django · GitHub
Fixed #37168 -- Made admin display database defaults as empty values. by felixxm · Pull Request #21495 · django/django · GitHub
Refs #36560, CVE-2026-35193 -- Recognized qualified cache-control directives. by nessita · Pull Request #21506 · django/django · GitHub
Refs #5929 -- Added a CompositeField expression to support multi-column subqueries. by p-r-a-v-i-n · Pull Request #21496 · django/django · GitHub
Added CI workflow to expand geospatial library version coverage. by smithdc1 · Pull Request #21457 · django/django · GitHub
Fixed #37164 -- Supported subclasses’ _get_lines() in jsonl Deserializer. by adamchainz · Pull Request #21461 · django/django · GitHub
Authored
#37170 (No-argument form of @sensitive_post_parameters() doesn't cleanse request.POST) – Django
#37174 (Template fragment cache key collision for vary_on values containing ":") – Django
Fundraising page returned 500 when it encountered .svg files for corporate logos · Issue #2664 · django/djangoproject.com · GitHub
Handle corporate member SVG logos by jacobtylerwalls · Pull Request #2665 · django/djangoproject.com · GitHub
Refs #37139 -- Renamed helper inside _is_pk_set(). by jacobtylerwalls · Pull Request #21507 · django/django · GitHub
Added or moved deprecation notes in docs/internals/deprecation.txt. by jacobtylerwalls · Pull Request #21508 · django/django · GitHub
Refs #34118 -- Removed further asgiref coroutine detection shims in tests. by jacobtylerwalls · Pull Request #21509 · django/django · GitHub
Fixed #37170 -- Applied the no-argument form of sensitive_post_parameters to MultiValueDict. by jacobtylerwalls · Pull Request #21510 · django/django · GitHub
Refs #35638 -- Added coverage for updating a model instance with a db_default. by jacobtylerwalls · Pull Request #21514 · django/django · GitHub
#37178 (Move MiddlewareMixin out of utils.deprecation) – Django
Fixed #37101, #37174 -- Used netstring delimiter to prevent collisions in cache keys. by jacobtylerwalls · Pull Request #21516 · django/django · GitHub
Refs #373 -- Updated FAQ page with partial composite primary key support. by jacobtylerwalls · Pull Request #21520 · django/django · GitHub
Fixed #37177 -- Reduced per-middleware context switching under ASGI. by jacobtylerwalls · Pull Request #21523 · django/django · GitHub
Misc
Fellows sync
Engaged in security reports
1-1 with GSoC mentee (Pravin)
Line manager (Andrew Godwin) chat
4 Likes