21 PRs in One Week to Django Core!

Django newsletter covering the week of March 13, 2026. Highlights include 21 PRs merged into Django core by 11 contributors (including 2 first-timers), Django security releases (6.0.3, 5.2.12, 4.2.29), and a note from Django Fellow Natalia about the growing noise from LLM-generated pull requests. Also covered: DjangoCon US 2026 CFP extended to March 23, Python 3.15.0 alpha 7 with lazy imports and frozendict, a proposal for AddConstraintConcurrently in contrib.postgres, tips on avoiding empty strings in non-nullable model fields, and a practical comparison of Meilisearch vs Elasticsearch showing cost reduction from $120 to $14/month.