pydantic/pydantic-ai v1.69.0

v1.69.0 (2026-03-16)

on GitHub

What's Changed

🚀 Features

• Add description parameter to Agent and set gen_ai.agent.description on span by @Kludex in #4677
• Send multimodal tool results to APIs directly instead of splitting into user parts by @dsfaccini in #3826
• Add response-based fallback support for FallbackModel by @sarth6 in #3786

🐛 Bug Fixes

• fix: enforce deps type on FunctionToolset.tool via tool/tool_plain split by @adtyavrdhn in #4626
• fix: copy details dict in Usage.__add__ to prevent mutation of or… by @sksvineeth in #4606

Full Changelog: v1.68.0...v1.69.0