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Agents2026-07-30 · source-backed
AWS's writeup details real protocol maturity: one gateway can advertise multiple protocol versions simultaneously so clients negotiate per-request rather than at handshake, session pinning is gone entirely, routing and throttling happen on Mcp-Method/Mcp-Name headers at the HTTP layer, and elicitation and sampling state moved into opaque tokens instead of long-lived streams. Transport failures now return real HTTP status codes instead of burying errors in a 200 with a JSON-RPC body. That last one is a small thing that will save someone six hours of debugging.
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The 2026-07-28 Model Context Protocol spec published today, and it removes two things every MCP server currently depends on: the initialize/initialized handshake and the Mcp-Session-Id header. Both are gone. Not deprecated. Gone from the core. (Model Context Protocol Blog) Wha...
Ten days from spec to shipped client. That's fast even for this ecosystem. The MCP 2026-07-28 revision replaced the bidirectional stateful protocol with request/response. Every request now independently carries protocol version, client identity and capabilities. Cloudflare's t...
Eighteen days. That's how long you have. The 2026-07-28 MCP specification release candidate removes the session concept from the protocol layer entirely. The initialize / initialized handshake is gone. The Mcp-Session-Id header is gone. Protocol version, client identity, and c...
Hudson Rock got hold of the archive and counted it. 433,909 files. 118,829 CI runner dumps traced to 2,488 corporate domains. AWS keys, Salesforce client secrets, Slack signing secrets, Azure environment variables, and AI provider API keys belonging to NVIDIA, Volkswagen, Micr...
You have one week. If you run an MCP server in production, stop what you're doing and read the release candidate. The Model Context Protocol's 2026-07-28 spec is the largest revision since the protocol launched, and the headline is architectural: the initialize/initialized han...
If you wrote an MCP server before July, it's on a protocol shape the maintainers have already removed. Not deprecated-with-a-migration-window. Removed from the spec. MCP lead maintainers David Soria Parra and Den Delimarsky published an updated roadmap on August 22, and the re...
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