Pydantic AI Updates: May 14, 2026

1. Pydantic AI v1.96.0 stages the deprecations for the v2 cutover in June

Pydantic AI. v1.96.0 is the staging release for v2, surfacing the deprecation warnings teams need to address before the upgrade: history_processors=... moves to capabilities=[ProcessHistory(...)], method-style result.usage() becomes the property result.usage, the AGUIApp class is replaced by AGUIAdapter, and the bare openai: provider prefix will switch to the Responses API in v2. If you’re running Pydantic AI in production, this is the window to fix the warnings while v1 still accepts the old shapes. Source

2. Pydantic AI v1.95.1 fixes broken Temporal imports and restores Agent.instrument

Pydantic AI. v1.95.1 patches two regressions in quick succession: a lazy import of current_otel_traceparent was breaking agent execution inside Temporal workflows (the import is now eager), and an overzealous deprecation in the previous release had removed Agent.instrument and InstrumentedModel — both are now restored. If you got bitten by either issue on the prior release, this is the fix-forward. Source