Originally published on AI Tech Connect.
Where the migration actually stands A month ago the Model Context Protocol tore out its handshake. By the usual standards of a breaking protocol change, the month since should have been ugly. It was not. Tooling shipped ahead of the ink drying, the compatibility story was designed rather than bolted on, and most teams running MCP servers were carried across without ever scheduling a cutover. Day-zero tooling. Cloudflare's Agents SDK added support the day before the specification's own date stamp. The Tier 1 SDKs — TypeScript, Python, Go and C# — were updated, with the Rust SDK in beta. No flag day. Gateways negotiate client-side and upstream protocol versions independently and fall back to the 2025 handshake when the upstream needs it. Nobody had to coordinate. The deprecations are the…
