Show HN: Only 1 of 4,356 reachable MCP servers is ready for the 2026-07-28 spec

A survey of 4,356 reachable MCP servers found that only 1 is currently compliant with the upcoming 2026-07-28 MCP specification update, with 90.8% not yet ready for the major protocol revision. The new spec introduces significant changes including a stateless core architecture, required routing headers, and removal of the initialize handshake and session ID, though the date marks when the spec publishes rather than when existing implementations will break. A new tool called mcp-spec-check allows developers to quickly test their servers' readiness for the migration.