Google ships stateless MCP across four SDKs

Google shipped beta support for stateless MCP across all four Tier-1 SDKs—TypeScript, Python, Go, and C#—and set a minimum 12-month transition window for deprecated protocol features. Google’s production guide says the 2026-07-28 release candidate removes the initialization handshake and session ID, letting ordinary round-robin load balancers route independent requests without sticky sessions or a shared Redis transport store. Teams following the stateless MCP migration clock can now test real SDK builds in staging, but should inventory tools that quietly stored workflow state in the old transport session before upgrading.