pydantic/pydantic-ai v1.103.0

v1.103.0 (2026-05-26)

on GitHub

What's Changed

🚀 Features

• Add list_prompts and get_prompt functionality to McpServer by @bdore in #3889
• Round-trip message timestamps through VercelAIAdapter's UIMessage.metadata by @Genmin in #5279
• Support anthropic_eager_input_streaming in OpenRouterModel by @Alex-Resch in #5656

🐛 Bug Fixes

• fix(bedrock): map malformed_model_output and malformed_tool_use to FinishReason.error by @kuishou68 in #5640
• fix(bedrock): recognize type='adaptive' in _is_thinking_enabled by @sevakva in #5651
• fix(ui): Strip force_download flag from client-submitted FileUrl parts in UIAdapter.sanitize_messages by @colesmcintosh in #5571
• fix(toolsets): warn when prepare callbacks return None by @dfm88 in #5188

New Contributors

• @ejentum made their first contribution in #5594
• @kuishou68 made their first contribution in #5640
• @sevakva made their first contribution in #5651
• @bdore made their first contribution in #3889
• @Genmin made their first contribution in #5279
• @aryanmotgi made their first contribution in #5667
• @dfm88 made their first contribution in #5188

Full Changelog: v1.102.0...v1.103.0