| MC1479503 |
(Updated) Microsoft Defender for Cloud Apps: Permission changes for select App Governance Entra roles |
Microsoft Defender XDR |
20 Oct 2026 |
| MC1478465 |
(Updated) Security Copilot is now included as part of your Microsoft 365 E5/E7 plan |
Microsoft Entra, Microsoft Intune, Microsoft Defender XDR |
19 Oct 2026 |
| MC1387578 |
(Updated) Microsoft Defender for Office 365: Localized default mark and notify email templateRoadmap: RM557558 |
Microsoft Defender XDR |
15 Oct 2026 |
| MC1484009 |
(Updated) Microsoft Defender for Office 365: New email submissions data in Advanced Hunting |
Microsoft Defender XDR |
9 Oct 2026 |
| MC1490909 |
Microsoft Defender Vulnerability Management: Private preview for selected developer package vulnerability coverage |
Microsoft Defender XDR |
7 Oct 2026 |
| MC1490905 |
Microsoft Defender for Office 365: Post-delivery protection for malicious QR codes in Microsoft Teams |
Microsoft Defender XDR |
7 Oct 2026 |
| MC1279093 |
(Updated) Microsoft Defender for Office 365: Enhancing how we handle promotional mail |
Microsoft Defender XDR |
2 Oct 2026 |
| MC1481318 |
Microsoft Defender XDR: Detection source support in alert tuning rules |
Microsoft Defender XDR |
28 Sep 2026 |
| MC1478463 |
Microsoft Defender for Office 365: Teams user reporting enabled by default |
Microsoft Defender XDR |
25 Sep 2026 |
| MC1392568 |
Microsoft Defender for Endpoint: Support for Amazon Linux 2 (ARM64) retiring October 31, 2026 |
Microsoft Defender XDR |
23 Sep 2026 |
| MC1388718 |
Microsoft Defender for Endpoint: Update to Linux connectivity requirements with new service URLs to allowlist |
Microsoft Defender XDR |
23 Sep 2026 |
| MC1478005 |
Microsoft Defender for Office 365: View approver details for remediation actions in Advanced Hunting |
Microsoft Defender XDR |
23 Sep 2026 |
| MC1477993 |
Case Management in Microsoft Defender |
Microsoft Defender XDR |
23 Sep 2026 |
| MC1476237 |
Microsoft Defender for Office 365: Remediation actions from the Teams message entity flyout |
Microsoft Defender XDR |
21 Sep 2026 |
| MC1474106 |
Microsoft Defender for Office 365: New MessageContents table in Advanced Hunting for Microsoft Teams messages |
Microsoft Defender XDR |
18 Sep 2026 |
| MC1466750 |
Microsoft Secure Score: New AI-readiness recommendations for device security |
Microsoft Defender XDR |
3 Sep 2026 |
| MC1422060 |
(Updated) Microsoft Defender for Office 365: Prompt injection protection for email |
Microsoft Defender XDR |
2 Sep 2026 |
| RM568784 |
Microsoft Defender for Identity: Unified identity timeline on the Identity page |
Microsoft 365 Defender, Microsoft Defender |
1 Sep 2026 |
| MC1465771 |
Microsoft Defender XDR: DLP alerts will be set as behaviors by default |
Microsoft Defender XDR, Microsoft Purview |
1 Sep 2026 |
| RM488097 |
Microsoft Defender for Office 365: Full Submissions experience in GCC |
Microsoft Defender for Office 365 |
26 Aug 2026 |
| MC1462464 |
Microsoft Defender for Cloud Apps: App Governance support for the Cloud Application Administrator role is being retired |
Microsoft Defender XDR |
26 Aug 2026 |
| MC1461705 |
Microsoft Defender XDR: Unified identity timeline on the Identity page |
Microsoft Defender XDR |
25 Aug 2026 |
| MC1461704 |
Microsoft Defender XDR: Unified response actions across identity accounts |
Microsoft Defender XDR |
25 Aug 2026 |
| MC1255406 |
(Updated) Microsoft Purview | Data Security Triage Agent Summaries for DLP Alerts in Microsoft Defender XDRRoadmap: RM558860 |
Microsoft Defender XDR, Microsoft Purview |
17 Aug 2026 |
| MC1454382 |
Action required: Update Microsoft Defender for Endpoint Android App |
Microsoft Defender XDR |
13 Aug 2026 |
| MC1446794 |
Microsoft Teams: Report security concerns in Teams meetings |
Microsoft Teams, Microsoft Defender XDR |
5 Aug 2026 |
| MC1447673 |
Microsoft Teams: Users can report security concerns in group calls |
Microsoft Teams, Microsoft Defender XDR |
5 Aug 2026 |
| RM557558 |
Microsoft Defender for Office 365: Localized Default Mark and Notify Email TemplateNotices: MC1387578 |
Microsoft Defender for Office 365 |
4 Aug 2026 |
| MC1440701 |
MDO Encrypted email attachment protection |
Microsoft Defender XDR |
27 Jul 2026 |
| RM557549 |
Microsoft Defender for Office 365: Introducing a new URL click alert in Teams via Microsoft Defender for Office 365 |
Microsoft Defender for Office 365 |
12 Jun 2026 |
| RM536573 |
Microsoft Teams: Report a Suspicious Call in Microsoft Teams |
Microsoft Teams, Microsoft Defender for Office 365 |
5 May 2026 |
| RM531760 |
Microsoft Defender for Office 365: User Report capabilities to Defender for Office Plan 1 |
Microsoft Defender for Office 365, Microsoft Teams |
6 Mar 2026 |
| RM529816 |
Microsoft Defender for Office 365: Zero-hour auto-purge (ZAP) Teams protection capabilities to Defender for Office Plan 1 |
Microsoft Defender for Office 365, Microsoft Teams |
5 Mar 2026 |
| RM531761 |
Microsoft Defender for Office 365: Admins can hunt on calls in Microsoft Teams |
Microsoft Defender for Office 365 |
27 Feb 2026 |
| RM502528 |
Microsoft Defender for Office 365: Auto-Remediation of Malicious Similarity Clusters in AIR |
Microsoft Defender for Office 365 |
24 Feb 2026 |
| RM503108 |
Microsoft Defender for Office 365: Automated Investigation & Response (AIR) Platform Modernization – User Submission Playbook |
Microsoft Defender for Office 365 |
24 Feb 2026 |
| RM503112 |
Microsoft Defender for Office 365: Agentic AI Phish Submission Analysis & Response |
Microsoft Defender for Office 365 |
24 Feb 2026 |
| RM542189 |
Microsoft Defender for Office 365: Admins can block external users in Microsoft Teams from Defender Portal |
Microsoft Defender for Office 365, Microsoft Teams |
24 Feb 2026 |
| MC1220762 |
(Updated) Retirement notice: MDE and XDR Advanced Hunting APIs retiring; migrate to Microsoft Graph Security API |
Microsoft Defender XDR |
28 Jan 2026 |
| RM497548 |
Microsoft Defender for Office 365: Overview dashboard |
Microsoft Defender for Office 365 |
26 Jun 2025 |
| MC992217 |
(Updated) Microsoft Defender: Changes to Defender for Cloud Apps alerts |
Microsoft Defender XDR |
5 Jun 2025 |
| RM488095 |
Microsoft Defender for Office 365: Additional actions include submit, allow/block, and trigger AIR from Advanced Hunting. |
Microsoft Defender for Office 365 |
10 Apr 2025 |
| RM184915 |
Microsoft Defender for Office 365: False positive email release from Quarantine through threat explorer, email summary panel, advanced hunting, and custom detection email entity page take action |
Microsoft Defender for Office 365 |
30 Jul 2024 |