Friday, 10 April 2026

Summarize an incident with Microsoft Copilot in Microsoft Defender leads 8 Defender updates

10 April 2026 recorded 7 updated Microsoft Defender documentation changes and 1 relevant Message Center announcement. The most active areas were Defender XDR, Unified SecOps.

• Defender XDR · Incidents and response

  Summarize an incident with Microsoft Copilot in Microsoft Defender

  Updated Microsoft Defender documentation in defender-xdr/security-copilot-m365d-incident-summary.md.

• Defender XDR · Endpoint protection

  Upcoming retirement of older Microsoft Defender for Endpoint mobile app versions (iOS and Android)

  Microsoft will retire Microsoft Defender for Endpoint mobile app versions released before February 2026 on iOS and Android starting May 10, 2026. Older versions will lose cloud connectivity and updates. Administrators must ensure devices update to supported versions to maintain protection and avoid service disruption.

• Defender XDR · Hunting and detection

  Understand the advanced hunting schema

  Updated Microsoft Defender documentation in defender-xdr/advanced-hunting-schema-tables.md.

• Defender XDR · Hunting and detection

  Advanced hunting with Microsoft Sentinel data in Microsoft Defender portal

  Updated Microsoft Defender documentation in defender-xdr/advanced-hunting-microsoft-defender.md.

• Unified SecOps · General

  Gov Support

  Updated Microsoft Defender documentation in unified-secops-platform/gov-support.md.

This period briefing was assembled from the tracked Microsoft Learn and Message Center changes.