Message CenterMajor changeUpdated messageUser impactAdmin impactRetirement

MC1220762 — Retirement notice: MDE and XDR Advanced Hunting APIs retiring; migrate to Microsoft Graph Security API

MC1220762Microsoft Defender XDRplanForChangeUpdated: 28 January 2026

Microsoft is retiring the Microsoft Defender for Endpoint and Defender XDR Advanced Hunting APIs by February 1, 2027. Organizations must manually migrate workflows to the Microsoft Graph Security API by January 31, 2027, to ensure continued functionality and improved security integration.

Applies to: Microsoft Defender XDR
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).