Huge release today. Kudos to the MCP committee for landing this plane! 👏
Fun fact: a few months ago, ChatGPT started treating `initialize` as optional. We have been optimistically sending immediate `tools/call` to all MCP servers, and only fall back to doing an `initialize`
Thrilled to announce the MCP 2026-07-28 release. It is one of MCP's biggest yet, built on 18 months of lessons learned.
A few highlights:
★ MCP is now stateless, with semantics for multi-round-trip requests. Serving MCP just got much simpler and more scalable.
★ MCP now has









