# What's new in the MCP 2026-07-28 specification

DevFeed: [What's new in the MCP 2026-07-28 specification](<https://devfeed.tech/articles/what-s-new-in-the-mcp-2026-07-28-specification-16494.md>)

Original publisher: [Read original article](<https://appwrite.io/blog/post/mcp-goes-stateless-in-the-2026-07-28-specification>)

Author: Aditya Oberai

Published: 2026-07-30T00:00:00Z

Content type: tutorial

Language: en

Sources: [Appwrite Blog](<https://devfeed.tech/sources/appwrite-blog.md>)

Topics: [Model Context Protocol](<https://devfeed.tech/topics/model-context-protocol.md>), [MCP Server](<https://devfeed.tech/topics/mcp-server.md>), [HTTP](<https://devfeed.tech/topics/http.md>), [Routing (disambiguation)](<https://devfeed.tech/topics/routing.md>), [Caching](<https://devfeed.tech/topics/caching.md>), [Authorization](<https://devfeed.tech/topics/authorization.md>), [Remote Procedure Call (RPC)](<https://devfeed.tech/topics/rpc.md>)

Tags: [caching](<https://devfeed.tech/tags/caching.md>), [http](<https://devfeed.tech/tags/http.md>), [mcp](<https://devfeed.tech/tags/mcp.md>), [mcp-server](<https://devfeed.tech/tags/mcp-server.md>), [model-context-protocol](<https://devfeed.tech/tags/model-context-protocol.md>), [news](<https://devfeed.tech/tags/news.md>), [routing](<https://devfeed.tech/tags/routing.md>), [rpc](<https://devfeed.tech/tags/rpc.md>)

## AI overview

The article explains changes in the MCP 2026-07-28 specification, focusing on the move from stateful sessions to a stateless request/response core. It covers implications for routing, load balancing, caching, authorization, and server migration.

## Source excerpt

The MCP 2026-07-28 spec drops sessions, adds header based routing, cacheable lists, and MRTR. Here is what changed and what you need to migrate your servers.