DjangoCon US 2026

This article summarizes a talk at DjangoCon US 2026 titled 'The Django UUID Story.' The speaker recounts their first contribution to Django, which involved adding database-side RandomUUID generation for UUIDv4 during a sprint at DjangoCon Europe 2017. Since then, Django's UUID handling has evolved significantly, extending support beyond PostgreSQL and introducing UUIDv7, which offers time-ordered values. The talk explains how Django generates UUIDs on the Python side versus the database side, compares UUIDv4 and UUIDv7, and discusses practical implications for real applications, migrations, and schema design. It is aimed at developers familiar with Django models who want to leverage modern UUID features for better performance and flexibility.