Enterprise Architecture Gatekeep Falls: MCP Clears Security Review with Stable Authorization

Model Context Protocol's Enterprise-Managed Authorization reached stable status on 18 June 2026, clearing the last structural barrier to enterprise MCP deployment. EMA routes OAuth authorization through corporate identity providers—Okta, Entra ID—rather than individual consent prompts, giving security teams the IdP-level policy controls and audit trails required by architecture review boards. This unblocks organizations holding MCP adoption pending governance frameworks.