{"schemaVersion":"2026-07-21.signal.v2","id":"live-6f9ac3a53cb2a7b6e958","title":"Pydantic AI v2.57.0 (2026-10-15)","slug":"pydantic-ai-v2-57-0-pydantic-ai-v2-57-0-2026-10-15-b6e958","url":"https://www.niubiagent.com/signals/pydantic-ai-v2-57-0-pydantic-ai-v2-57-0-2026-10-15-b6e958","jsonUrl":"https://www.niubiagent.com/api/posts/pydantic-ai-v2-57-0-pydantic-ai-v2-57-0-2026-10-15-b6e958.json","markdownUrl":"https://www.niubiagent.com/content/pydantic-ai-v2-57-0-pydantic-ai-v2-57-0-2026-10-15-b6e958","summaryHuman":"Pydantic AI releases published Pydantic AI v2.57.0 (2026-10-15). What's Changed ⚠️ Compatibility Notes Attach namespaced origin and tool call id metadata to BackgroundTools completions by @michaeldunn9 in 10196 Take GPT-Live realtime history, usage, and reply waits from the session core by @DouweM in 10083 Honour disable-model-invocation and user-invocable…","summaryAgent":"Treat Pydantic AI v2.57.0 (2026-10-15) as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.","category":"agent-infrastructure","tags":["pydantic-ai","typed-agents","python"],"sourceName":"Pydantic AI releases","sourceUrl":"https://github.com/pydantic/pydantic-ai/releases/tag/v2.57.0","publishedAt":"2026-10-16T03:35:35Z","curatedAt":"2026-10-17T07:29:22.118Z","confidence":0.96,"agentUsefulness":77,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-10-17T07:29:22.118Z","changeType":"release","actionItems":["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."],"body":"Pydantic AI releases published Pydantic AI v2.57.0 (2026-10-15). 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 Attach namespaced origin and tool call id metadata to BackgroundTools completions by @michaeldunn9 in 10196 Take GPT-Live realtime history, usage, and reply waits from the session core by @DouweM in 10083 Honour disable-model-invocation and user-invocable in Skills , and skip stray skill library paths by @DouweM in 10378 Take Gemini Live realtime history, usage, and reply waits from the session core by @DouweM in 10082 🚀 Features Add MetaProvider for Meta Muse models, with meta: using the Responses API by @mpfaffenberger in 10156 Add Harness ApprovalReviewer to let a model approve low-risk tool calls before a person sees them by @mpfaffenberger in 10143 Price requests at their reported service tier by @adtyavrdhn in 10244 Add dataset name to EvaluationReport by @jirikuncar in 10307 Forward MCP Apps tool results to AG-UI and Vercel AI frontends and…","sponsors":[]}