The official source reports this update: v2.9.0. Changelog 2.9.0 (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 ) Integrations : Build rich voice and telephony agents using the newly added LiveKit runner. ( f277d91 ) Workflows : Simplify graph workflow management by authoring and loading ADK 2.0 graphs directly from declarative YAML configurations. ( 2a9461b ) MCP : Work with MCP SDK 2.x servers as well as 1.x.
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Agent Workflow Node Resumption Behavior Changed
v2.9.0 includes automatic model failover for agent resilience and supports MCP SDK 2.x.
11 Sept 20261 verified claims1 sources1 observations
This official update documents a development concerning v2.9.0. Its practical significance depends on the scope and evidence stated by the source.
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