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AWS Supports Updated Model Context Protocol Specification on AgentCore Gateway

The Model Context Protocol has released its 2026-07-28 specification. Developers can activate the update on Amazon Bedrock AgentCore Gateway using a single UpdateGateway call.

The Model Context Protocol published its 2026-07-28 specification recently. This update represents the largest revision since launch for the protocol. Developers can now evaluate the changes introduced in this major release.

Several architectural updates define the new specification version. Specifically, the Model Context Protocol is now stateless across its operations. It also features a governed extensions system and hardened authorization.

AWS supports this updated protocol version on Amazon Bedrock AgentCore Gateway. Users can enable the new version on Amazon Bedrock AgentCore Gateway with a single UpdateGateway call. This implementation allows developers to learn what changed and adopt the updated specification directly.

What this means for you

For businesses utilizing Amazon Bedrock AgentCore Gateway, the release offers a direct path to adopt the revised protocol. Developers can transition to the new stateless specification with hardened authorization by executing a single command. This allows teams to quickly update their infrastructure while learning what changed in the standard.

Evidence

Solidly sourced
46/100

  • The Model Context Protocol published its 2026-07-28 specification, marking its largest revision since launch.

    single source
    Quote

    „The Model Context Protocol (MCP) published its 2026-07-28 specification, the largest revision since launch“

    AWS, Machine Learning

  • The updated Model Context Protocol specification is stateless and features a governed extensions system along with hardened authorization.

    single source
    Quote

    „MCP is now stateless, with a governed extensions system and hardened authorization.“

    AWS, Machine Learning

  • The new version of the protocol can be enabled on Amazon Bedrock AgentCore Gateway using a single UpdateGateway call.

    single source
    Quote

    „enable the new version on Amazon Bedrock AgentCore Gateway with a single UpdateGateway call.“

    AWS, Machine Learning

Sources

The evidence score is computed, not hand-set: from confidence, the number of sources and the share of verified statements.

Source & transparency

Type of contribution
AI-assisted — AI-assisted, editorially reviewed
Use CasesGenerative AI

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