PydanticAI v2.19.0 发布：增强错误信息与依赖更新

AI 摘要

PydanticAI 发布 v2.19.0 版本，新增了在 ModelHTTPError 中提供 headers 和 retry_after 字段的功能，并修复了运行步骤边界处外部取消处理的问题。同时更新了 FastMCP 依赖范围至 <4。

正文节选

<!-- Release notes generated using configuration in .github/release.yml at main --> ## What's Changed ### 🚀 Features * Add `headers` and `retry_after` to `ModelHTTPError`, populate from all provider SDKs by @dmontagu in https://github.com/pydantic/pydantic-ai/pull/6733 ### 🐛 Bug Fixes * Re-assert absorbed external cancellation at run step boundaries by @DouweM in https://github.com/pydantic/pydantic-ai/pull/6496 ### 📦 Dependencies * Update FastMCP dependency range to `<4` by @adtyavrdhn in http

发布时间：2026-07-28 11:27

抓取时间：2026-08-02 00:30

来源机构：Pydantic