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Model Context Protocol

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Original explanatory diagram

News analysisRelease: October 6, 2025Published: October 24, 20263 min read

OpenAI introduced in-chat apps and an Apps SDK preview built on MCP

OpenAI's October 6, 2025 launch put pilot in-chat apps before logged-in users outside named European regions and released an Apps SDK preview built on the Model Context Protocol.

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Original explanatory diagram

News analysisRelease: November 25, 2025Published: October 23, 20263 min read

MCP Model Context Protocol open standards interoperability

MCP’s November 2025 revision treated a protocol anniversary as a compatibility release

Model Context Protocol maintainers released the 2025-11-25 specification revision on MCP’s first anniversary, documenting a new version rather than a timeless protocol state.

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Original explanatory diagram

News analysisRelease: June 18, 2025Published: October 23, 20263 min read

MCP Model Context Protocol protocol revision tool security

MCP’s June 2025 revision made transport and authorization compatibility testable contracts

The Model Context Protocol published its 2025-06-18 specification revision, adding a dated compatibility point for streamable HTTP, authorization and tool metadata.

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