pydantic/pydantic-ai v1.72.0
v1.72.0 (2026-03-25)

on GitHub

4 hours ago

What's Changed

🚀 Features

feat: add anthropic_eager_input_streaming to AnthropicModelSettings by @moe9195 in #4842
Support sync tool preparation functions by @DouweM in #4846
Don't require explicit url= on MCP capability, in Python or AgentSpec by @DouweM in #4846

🐛 Bug Fixes

Fix Thinking capability type inference by @DouweM in #4846
fix: add missing OpenRouterReasoning effort values by @majdalsado in #4709
fix: preserve ToolReturn metadata through Temporal serialization by @alvinttang in #4684
fix: Insert empty user message for Bedrock when only instructions are present by @adtyavrdhn in #4498

New Contributors

@ddanielcruzz made their first contribution in #4837
@alvinttang made their first contribution in #4684
@moe9195 made their first contribution in #4842

Full Changelog: v1.71.0...v1.72.0

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