@modelcontextprotocol/node@2.1.1

MCP TypeScript SDK releases published @modelcontextprotocol/node@2.1.1. This automated release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: Patch Changes 2897 7f4c12a Thanks @claude ! - hono is now a regular dependency of @modelcontextprotocol/node , so installs with strict peer-dependency checking no longer fail on the hono peer that @hono/node-server requires. No runtime change. 2918 84804c2 Thanks @claude ! - A Server or McpServer now serves one connection at a time, and a Streamable HTTP server transport without sessions ( sessionIdGenerator: undefined ) serves one request. An app that uses one server object, or one stateless transport, for every HTTP request fails on the second request after this upgrade. Build the server and the transport per request instead. What keeps working without a change: createMcpHandler(buildServer) and serveStdio(buildServer) , where buildServer returns a new server on every call. A handler that builds a new server and a new stateless transport for each request. One server and one transport…

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