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Pydantic AI Updates: July 16, 2026

pydantic-ai release ai-agents bug-fixes

1. Pydantic AI Ships v2.11.0 Exporting HistoryProcessor and Sharper Error Hints

Pydantic AI. Pydantic AI released v2.11.0, which exports HistoryProcessor and adds actionable hints to usage-limit and tool-retry error messages, including onboarding guidance that suggests Agent('test') when credentials are missing. Bug fixes correct MistralStreamedResponse number validation to accept int-valued numbers while rejecting booleans, and repair native structured output handling so untransformed schemas are no longer sent to Anthropic and Bedrock when the native output mode is configured. The patch continues the 2.x line’s incremental focus on validation accuracy and provider integration. Source