AI Briefingmcp-handler Releases Version 2.0 Supporting the Latest MCP Spec
Key point
mcp-handler 2.0 has been released, supporting the latest Model Context Protocol spec and TypeScript SDK v2.
Details
mcp-handler, which helps easily build MCP servers on major web frameworks such as Next, Nuxt, and Svelte, has been updated to version 2.0. This update adds support for the latest Model Context Protocol (MCP) spec and MCP TypeScript SDK v2.
Key changes are as follows:
- Native support for the 2026-07-28 stateless protocol (including per-request metadata and server/discover)
- A stateless compatibility layer for clients using the 2025-era Streamable HTTP
- Support for both protocols without Redis or a separate session store
Existing Streamable HTTP clients can continue connecting through the same /mcp endpoint even if the server adopts the latest protocol. However, Node.js 20 or higher and zod 4 are required, and the legacy HTTP+SSE transport has been removed, so caution is needed when migrating.
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