Pydantic AI v2: capabilities, a leaner core, and the Harnessknowledge-baseJun 23, 2026By Team M37Labshttps://pydantic.dev/articles/pydantic-ai-v2?utm_medium=social&utm_source=linkedin&dub_id=ohPw2KIZtIVDluUU pydantic.devPydantic AI v2: capabilities, a leaner core, and the HarnessPydantic AI v2 is here: one capability primitive for instructions, tools, hooks, and settings, a slimmer core, and the Pydantic AI Harness.pydantic.dev