WEEKLY BRIEFING · 8 DEC – 14 DEC 2025 · UTC
Full source inventory · public sources only
Week 50 sources
Microsoft published 11 Windows KB releases (11 security). MSRC published December 2025 Security Updates. CISA added 1 Microsoft CVE to its Known Exploited Vulnerabilities catalog. 3 lifecycle milestones fall in the next 30 days. 4 Azure updates. 5 Windows and security articles from Microsoft blogs.
11Windows KB releases
1MSRC release note
5Windows and security articles
1Microsoft CVEs added to CISA KEV
Security to act on1
Windows releases11
- Windows 10, version 1607 — KB5071543 (B), build 14393.86889 Dec
- Windows 10, version 1809 — KB5071544 (B), build 17763.81469 Dec
- Windows 10, version 21H2 — KB5071546 (B), build 19044.66919 Dec
- Windows 10, version 22H2 — KB5071546 (B), build 19045.66919 Dec
- Windows 11, version 23H2 — KB5071417 (B), build 22631.63459 Dec
6 more
- Windows 11, version 24H2 — KB5072033 (B), build 26100.74629 Dec
- Windows 11, version 25H2 — KB5072033 (B), build 26200.74629 Dec
- Windows Server 2016 — KB5071543 (B), build 14393.86889 Dec
- Windows Server 2019 — KB5071544 (B), build 17763.81469 Dec
- Windows Server 2022 — KB5071547 (B), build 20348.45299 Dec
- Windows Server 2025 — KB5072033 (B), build 26100.74629 Dec
MSRC security releases1
Windows and security news5
Lifecycle milestones in the next 30 days3
- End of support · 3 products: Advanced Threat Analytics 1.X; Dynamics CRM 2016 (Dynamics 365); Visual Studio 2022 , Version 17.10 (LTSC channel) 13 Jan
Product news22
Microsoft Graph · 13
- Security (v1.0): 3 API change passages12 Dec
- Security (v1.0): 1 API change passage12 Dec
- Device and app management (beta): 1 API change passage12 Dec
10 more
- Calendars (beta): 10 API change passages12 Dec
- Reports (beta): 1 API change passage11 Dec
- Teamwork and communications (beta): 4 API change passages11 Dec
- Applications (beta): 2 API change passages9 Dec
- Identity and access (v1.0): 1 API change passage9 Dec
- Calendar (beta): 8 API change passages9 Dec
- Teamwork (v1.0): 2 API change passages8 Dec
- Teamwork and communications (beta): 4 API change passages8 Dec
- Applications (beta): 6 API change passages8 Dec
- Mail (beta): 12 API change passages8 Dec
Google Gemini · 5
- Released gemini-2.5-flash-native-audio-preview-12-2025, a new native audio model for the Live API.12 Dec
- Launched the Gemini Deep Research agent in preview.11 Dec
- Launched the Interactions API.11 Dec
2 more
OpenAI · 2
- Released client-side compaction.11 Dec
- Released GPT-5.2, the newest flagship model in the GPT-5 model family.11 Dec
Microsoft Graph PowerShell SDK · 1
PSWriteHTML · 1
- PSWriteHTML 1.40.014 Dec
Azure updates4
- Update: The retirement date for default outbound access has been extended to March 31, 2026.12 Dec
- Public Preview: Azure Databricks Dashboard subscriptions now support Microsoft Teams11 Dec
- Generally Available: Azure Sphere OS version 25.12 is now available for evaluation11 Dec
- Generally Available: FIPS compliant mode for Application Gateway V2 SKUs9 Dec
From the community2
Other public updates27
- SharePoint site analytics: OneNote usage included in site usage reports12 Dec
- Microsoft Excel: Enabling M365 subscribers to use Copilot Chat in locally stored modern workbooks12 Dec
- Microsoft Viva - Viva Glint: Export Executive Summary report in Viva Glint to editable PowerPoint slides12 Dec
- Microsoft Purview |Insider Risk Management - Enhancements to variant limits and detection groups12 Dec
- Teams Admin Center: Best Practice dashboard to monitor VDI optimization for meetings12 Dec
22 more
- Manage version expiration for audio and video files in SharePoint Online12 Dec
- Windows Office Hours: December 18, 2025 11 Dec
- Microsoft Teams: Restart Event feature for Town Hall with unrecoverable failures10 Dec
- Microsoft Purview | Data Lifecycle Management - New cmdlet to remove retention holds from inactive mailboxes10 Dec
- Coming soon: IT admins will be able to customize recording and transcription notifications in Teams10 Dec
- Microsoft Teams: Enhancing update efficiency through peer-to-peer (P2P) download10 Dec
- Latest on Windows quality updates out of the box – now disabled by default10 Dec
- IP address changes in Defender for Identity v2.x sensor communication10 Dec
- Viva Glint: Add a partner to Viva Glint10 Dec
- SharePoint catalog management10 Dec
- Microsoft 365: Enrich profile cards with custom properties from third-party systems10 Dec
- Microsoft baseline security mode for Office, SharePoint, Exchange, Teams, and Entra10 Dec
- The December 2025 Windows security update is now available9 Dec
- Dynamics 365 Customer Insights – Journeys – Wait on segment membership to trigger next step in a journey9 Dec
- Retirement of several Microsoft Planner features in early 2026 as part of a Planner update9 Dec
- Content Security Policies (CSP) are coming to SharePoint Online and might impact your custom SPFx solutions9 Dec
- Microsoft Teams: Find SharePoint agents in Teams chats and Teams Store9 Dec
- Microsoft 365 Admin Center: Retirement of Technology Experiences score from Adoption Score9 Dec
- Automatic Windows event auditing configuration availability for unified sensors (V3.x)9 Dec
- (Update)Action Required: Trust DigiCert Global Root G2 Certificate Authority for using Entra services by January 7, 20269 Dec
- Teams admin center: Troubleshoot meetings and calls with automatic issue identification and recommendations9 Dec
- How to use Microsoft Intune to update expiring Secure Boot certificates8 Dec
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.