Who contributed to Django on August 19, 2026?

3 developers shipped this update, including adamchainz, varunkasyap, and Tim Graham.

What were the notable Django updates?

Fixed #37259 -- Restored support for old-signature Model.from_db() overrides, Fixed #37259 -- Restored support for old-signature Model.from_db() overrides, and Fixed #37154, #37149 -- Switched from Selenium to Playwright for integration testing.

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Django Restores Legacy Model.from_db() After Fetch Modes Broke It

By RepoJournal · Filed 06:55 UTC on August 19, 2026 · About Django

3 people shipped this

adamchainz @adamchainz 2 cited

varunkasyap @varunkasyap 2 cited

Tim Graham @timgraham 1 cited

If you've overridden Model.from_db() with the classic four-argument signature, your code was silently breaking on Django's main branch, and a merged fix restores it.

The fetch modes feature introduced a breaking change in all query iteration paths, causing a TypeError for models with the documented from_db(cls, db, field_names, values) signature [1]. Adam Johnson's fix detects once per query whether the model's from_db() accepts fetch_mode, restoring backward compatibility without a per-row performance hit [2]. Separately, Varun Kasyap's long-awaited PR switches integration testing from Selenium to Playwright, aiming to "improve test reliability, performance, and developer experience for Django core contributors" [3], with a refreshed version now under review [4]. A companion skip condition was also added to stabilize a foreign key test [5]. Behind the scenes, django-asv is simply accumulating CI results for ubuntu-latest [6]. This is a busy period, with 5 commits and 4 PRs across the two repos, all pointing toward Django hardening its query layer and modernizing its test tooling.

Action items

→ If you maintain a custom Model.from_db() override, verify compatibility with the fetch_mode change and rebase on the merged fix django/django [immediate]
→ Track the Playwright integration testing PR for when it lands, as it will replace Selenium in CI django/django [monitor]
→ No action needed for django-asv; the commit is CI-only django/django-asv [monitor]

References

[1] Fixed #37259 -- Restored support for old-signature Model.from_db() overrides. ↗ django/django
[2] Fixed #37259 -- Restored support for old-signature Model.from_db() overrides. django/django
[3] Fixed #37154, #37149 -- Switched from Selenium to Playwright for integration testing. ↗ django/django
[4] Fixed #37154, #37149 -- Switched from Selenium to Playwright for integration testing. django/django
[5] Refs #37260 -- Added missing skip condition to test_fk_alter_on_delete_db_level. django/django
[6] Results for ubuntu-latest added [skip ci] django/django-asv

Quick answers

What shipped in Django on August 19, 2026?: If you've overridden Model.from_db() with the classic four-argument signature, your code was silently breaking on Django's main branch, and a merged fix restores it. In total, 5 commits and 4 pull requests landed.
Who contributed to Django on August 19, 2026?: 3 developers shipped this update, including adamchainz, varunkasyap, and Tim Graham.
What were the notable Django updates?: Fixed #37259 -- Restored support for old-signature Model.from_db() overrides, Fixed #37259 -- Restored support for old-signature Model.from_db() overrides, and Fixed #37154, #37149 -- Switched from Selenium to Playwright for integration testing.

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