pydantic/pydantic-ai v2.45.0 on GitHub

What's Changed

Pass xhigh effort through on Bedrock when the model profile supports it by @willfrey in #8392
Allow gpt-5.6-sol, gpt-5.6-luna, and gpt-5.6-terra on Bedrock Converse by @pydanty in #7825
Resolve a DynamicToolset once per durable run instead of inside every durable unit by @DouweM in #8455
Hold one MCP server session per durable run instead of one per durable unit by @DouweM in #8463
Preserve tool history in MCPSamplingModel by @DouweM in #8466
Stop importing legacy httpx in pydantic_ai.mcp, which a FastMCP 4 install does not ship by @DouweM in #8461
Report each agent run's own usage on its span by @DouweM in #8456

Full Changelog: v2.44.0...v2.45.0