Anthropic has released the fifth specification for the Model Context Protocol (MCP), version 2026-07-28. This update transitions MCP to a stateless core, simplifying deployment on serverless and edge infrastructure, and enhances authorization to align with OAuth 2.0 and OIDC standards, enabling seamless integration with enterprise identity systems like Microsoft Entra and Okta. The new spec also introduces a versioned extensions framework for adding capabilities like interactive UIs and long-running tasks, with support rolling out across Claude products. AI
IMPACT Simplifies integration for AI agents with applications and enterprise systems, potentially increasing adoption.
RANK_REASON Release of a new protocol specification with industry adoption and integration details. [lever_c_demoted from research: ic=1 ai=0.7]
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