PydanticAI v2.26.0 发布：新增工具隐藏与运行取消功能

AI 摘要

PydanticAI 发布 v2.26.0 版本，新增了隐藏工具函数、首次运行取消、提示缓存保留解析等多项功能，并修复了多个 bug。该版本还支持 DeepSeek V4 Flash 模型，并改进了 OpenRouter 的流式推理细节处理。

正文节选

<!-- Release notes generated using configuration in .github/release.yml at main --> ## What's Changed ### 🚀 Features * Support hiding function tools until revealed — via tool search, `load_capability`, or `ToolReturn.tools` — using each provider's native deferral/addition channel by @DouweM in https://github.com/pydantic/pydantic-ai/pull/7104 * Add first-party run cancellation: `AgentRun.cancel()`, `RunContext.cancel()`, `RunCancelled` by @DouweM in https://github.com/pydantic/pydantic-ai/pull/

发布时间：2026-08-07 11:14

抓取时间：2026-08-07 14:46

来源机构：Pydantic