Google ADK Python v2.9.0 发布：模型自动故障转移与 LiveKit 语音支持

AI 摘要

Google 发布 ADK Python v2.9.0，重点提升智能体韧性并扩展生态集成。新版本引入 FallbackModel 实现主模型出错时自动故障转移，新增 LiveKit runner 支持语音与电话智能体，并支持从 YAML 声明式配置加载 ADK 2.0 图工作流。此外，该版本兼容 MCP SDK 2.x（默认仍解析 1.x），并包含工作流节点恢复、GCS 工具本地路径限制等破坏性变更。

正文节选

# Changelog ## [2.9.0](https://github.com/google/adk-python/compare/v2.8.0...v2.9.0) (2026-09-10) ### Highlights This release focuses on agent resilience and ecosystem integration by introducing automatic model failover, native voice support via LiveKit, and compatibility with MCP SDK 2.x. * **Models**: Safeguard agent uptime by automatically failing over to backup models when the primary model encounters errors. ([c300b8d](https://github.com/google/adk-python/commit/c300b8ded62b8b

发布时间：2026-09-11 05:22

抓取时间：2026-09-11 05:39

来源机构：Google