How AgentCore Gateway Supports the MCP 2026-07-28 Spec
AWS, Tuesday, July 28th, 2026
The Model Context Protocol's largest revision since launch makes MCP stateless, and Bedrock AgentCore Gateway now supports it.
The Model Context Protocol published its 2026-07-28 specification, the largest revision since the protocol launched. MCP is now stateless, adds a governed extensions system, and hardens its authorization model.
AWS walks through what changed at the protocol level and why the stateless design simplifies scaling and failure recovery for gateway operators. Amazon Bedrock AgentCore Gateway supports the new version, and existing gateways can be moved to it with a single UpdateGateway call.
The post also covers compatibility considerations for tools built against earlier revisions.