Who contributed to Django on May 15, 2026?

2 developers shipped this update, including medmunds and greg-ware.

What were the notable Django updates?

Refs #36664 -- Updated SMTP EmailBackend tests for Python 3.15, Refs #36664 -- Updated SMTP EmailBackend tests for Python 3.15, and #2154 Lazy-loading for images in blog content.

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DJANGO SHORES UP PYTHON 3.15 COMPATIBILITY AS SMTP TESTS GET OVERHAULED

By RepoJournal · Filed 06:00 UTC on May 15, 2026 · About Django

2 people shipped this

medmunds @medmunds 1 cited

greg-ware @greg-ware 1 cited

Django is prepping for Python 3.15 by fixing email backend tests that relied on outdated CPython behavior around non-ASCII addresses.

The Django core team updated SMTP EmailBackend tests [1][2] to handle Python 3.15's fix for non-ASCII email encoding, which CPython had been getting wrong since forever. The test now feature-detects whether the Python runtime has the fix in place, then validates the error handling either way. This matters because Python 3.15 finally corrects gh-122476, and Django's test suite needs to not explode when it does. Meanwhile, the Django website pushed a quality-of-life win by adding lazy-loading attributes to all blog images [3], cutting unnecessary network requests on content pages that don't need to load below-the-fold images on arrival. Small change, real performance impact for readers on slower connections.

Action items

→ Review Django PR #21284 for Python 3.15 EmailBackend test changes before next release django/django [plan]
→ Test your Django apps against Python 3.15 beta when available django/django [plan]

References

[1] Refs #36664 -- Updated SMTP EmailBackend tests for Python 3.15. ↗ django/django
[2] Refs #36664 -- Updated SMTP EmailBackend tests for Python 3.15. django/django
[3] #2154 Lazy-loading for images in blog content ↗ django/djangoproject.com

Quick answers

What shipped in Django on May 15, 2026?: Django is prepping for Python 3.15 by fixing email backend tests that relied on outdated CPython behavior around non-ASCII addresses. In total, 3 commits and 2 pull requests landed.
Who contributed to Django on May 15, 2026?: 2 developers shipped this update, including medmunds and greg-ware.
What were the notable Django updates?: Refs #36664 -- Updated SMTP EmailBackend tests for Python 3.15, Refs #36664 -- Updated SMTP EmailBackend tests for Python 3.15, and #2154 Lazy-loading for images in blog content.

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