On July 28, 2026, the maintainers of the Model Context Protocol (MCP) released a new specification. MCP lets AI assistants and autonomous agents connect to external content and tools, such as your documentation portal or your support ticketing system. The maintainers describe it as MCP’s largest revision since its launch.
The main change is that the protocol no longer keeps track of ongoing exchanges between AI apps and the other systems it connects to. Each message now carries the info needed to handle it on its own. Engineers call this a stateless design.
The change affects how developers run MCP servers and how documentation teams explain those integrations. It also mirrors a decision anyone who writes reusable help topics makes every day: what to include so a piece of content works without relying on the content contained on the pages around it.
