MCP STATELESS SPEC CHANGES: WHAT THE 2026-07-28 REVISION MEANS FOR SERVERS

Summary from the TLDR IT newsletter

The 2026-07-28 specification revision of the Model Context Protocol removes the initial handshake and protocol-level sessions, introducing a stateless architecture where requests carry context and versioning directly in metadata. Server authors must update handlers to support the stateless option, remove session dependencies, enforce required request headers, and replace mid-call interactive workflows with a multi-round-trip input request pattern.