Pydantic AI v2.47.0 (2026-09-21)

Pydantic AI releases published Pydantic AI v2.47.0 (2026-09-21). This automated release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: What's Changed ⚠️ Compatibility Notes Name a None output route None rather than NoneType by @DouweM in 8590 Raise when UserPromptPart.content is not a str or a sequence, instead of silently sending a dict 's keys by @DouweM in 8595 🚀 Features Ask three more field types TypeSafeModel can already answer by @DouweM in 8544 🐛 Bug Fixes Refuse a tuple output field and a self-contained model instead of crashing by @DouweM in 8537 Refuse a rubric with more levels than Jev scores against by @DouweM in 8583 Let None be a route TypeSafeModel can pick by @DouweM in 8540 Let a Choices set describe itself as a TypeSafeModel route by @DouweM in 8541 Recognise a None route and a None option that carry a description by @DouweM in 8598 Name the picked route in the TypeSafeModel request that fills it by @DouweM in 8589 📦 Dependencies Pin ag-ui-protocol to <1 by @adtyavrdhn in 8579 New Contributors…

• Review the official Pydantic AI releases release notes before upgrading.
• Check compatibility, migration, and security notes against your current agent stack.
• Run focused regression tests before production rollout.