MCP 2026-07-28 Specification: transport going stateless | Hacker News

MCP released a 2026-07-28 spec update that moves transport toward a stateless model.

The change is meant to cut server-side session complexity and make MCP easier to deploy and scale, especially in serverless environments.

Maintainers and users are also discussing compatibility with MCP 1.x and practical details like client recovery, authentication, and channel handling.

The update aims to clarify failure behavior during reconnects while preserving a smoother transition for existing implementations.