According to the supplied Google Developers Blog summary, the July 28, 2026 Model Context Protocol specification replaces legacy stateful constraints with a stateless core designed for horizontal scaling, serverless deployment, and ordinary round-robin load balancing. It also introduces standardized HTTP headers for routing and cache control, plus Multi Round-Trip Requests (MRTR) for interactive or long-running work without holding connections open. Beta SDKs are reportedly available for Python, TypeScript, Go, and C#. The dates are future-dated relative to the current verification context, so these claims require confirmation from the published specification and SDK repositories.
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