WEEKLY BRIEFING · 1 DEC – 7 DEC 2025 · UTC
Public sources only
48 public updates in week 49
Microsoft published 2 Windows KB releases (2 optional previews). No new MSRC release that week. 22 roadmap changes, led by Purview (6) and Microsoft 365 Copilot (4). 3 Windows and security articles from Microsoft blogs.
2Windows KB releases
0MSRC release notes
22Roadmap changes across 8 products
3Windows and security articles
Windows releases2
Windows and security news3
Microsoft product news21
Microsoft Defender XDR what's new · 6
- (GA) Advanced hunting now supports custom functions that use tabular parameters.1 Dec
- (GA) Microsoft Security Copilot in Microsoft Defender now lets you hunt for threats by using natural language with the Threat Hunting Assistant.1 Dec
- (GA) The hunting graph in advanced hunting is now generally available.1 Dec
3 more
- (GA) The Microsoft Security Copilot Threat Intelligence Briefing Agent in Microsoft Defender is now generally available.1 Dec
- (Preview) Microsoft Security Copilot in Microsoft Defender now includes the Dynamic Threat Detection Agent, an always-on, adaptive backend service that uncovers hidden t…1 Dec
- (Preview) The following advanced hunting schema tables are now available for preview: The CampaignInfo table contains information about email campaigns identified by Mic…1 Dec
Gemini API release notes · 3
- Gemini 3 billing for Grounding with Google Search will begin on January 5, 2026.5 Dec
- Deprecation announcement: The gemini-2.5-flash-image-preview model will be shut down January 15, 2026.4 Dec
- Deprecation announcement: The text-embedding-004 model will be shut down January 14, 2026.3 Dec
Classic Outlook known issues · 3
- [FIXED] Classic Outlook shows error "Contacting the server for information"1 Dec
- [FIXED] Contact Groups created from Outlook contacts get added with /o=ExchangeLabs1 Dec
- [FIXED] Error “The text formatting command is not available” when opening emails in classic Outlook or documents in Word for Windows1 Dec
Microsoft Defender for Identity what's new · 2
- ADWS LDAP search in Advanced Hunting1 Dec
- New properties for 'sensorCandidate' resource type in Graph-API (preview)1 Dec
Microsoft Defender for Cloud Apps release notes · 2
- Increased availability of App governance unused app insights feature (Preview)1 Dec
- Microsoft Defender for Cloud Apps permissions are now integrated with Microsoft Defender unified RBAC1 Dec
OpenAI API changelog · 1
Azure Governance and Management Blog · 1
Azure CLI release notes · 1
- Azure CLI 2.81.02 Dec
Azure Connected Machine agent release notes · 1
Copilot Studio what's new · 1
Microsoft 365 roadmap22
Purview · 6
- Microsoft Purview compliance portal: eDiscovery - Metadata Field Enhancements in Process Reporting5 Dec
- Microsoft Purview compliance portal: Graph APIs for Standard eDiscovery Cases5 Dec
- Microsoft Purview compliance portal: Information Protection - SharePoint Online extends library permissions to downloaded files.3 Dec
3 more
Microsoft 365 Copilot · 4
- Microsoft Copilot (Microsoft 365): Continue editing in Outlook from Copilot Chat5 Dec
- Microsoft Copilot (Microsoft 365): Edit a Page using Copilot Chat on Mobile5 Dec
- Microsoft Copilot (Microsoft 365): GPT-5 in Agent Builder inside Microsoft 365 Copilot5 Dec
Teams · 4
- Microsoft Teams: Collaborate using Pages in Channels3 Dec
- Microsoft Teams: Malicious URL Protection for Teams Chat and Channels3 Dec
- Microsoft Teams: Recommended actions page in the Teams Rooms Pro Management portal3 Dec
Viva · 3
- Microsoft Viva: Viva Amplify - Audience breakdown tooltip5 Dec
- Microsoft Viva: Viva Amplify - Support for click through rate metric in Amplify reporting5 Dec
- Microsoft Viva: Copilot Dashboard - M365 Copilot Chat adoption metrics2 Dec
4 more products · 5 changes
Intune · 2
- Microsoft Intune: Assignment filters support for Apple declarative device management (DDM)5 Dec
- Microsoft Intune: Recovery Lock management for macOS2 Dec
Microsoft Edge · 1
Outlook · 1
SharePoint · 1
Every line opens its detail page or the original Microsoft source. This briefing uses public sources only and says nothing about your tenant or devices.