WEEKLY BRIEFING · 15 DEC – 21 DEC 2025 · UTC
Public sources only
43 public updates in week 51
Microsoft published 6 Windows KB releases (6 out-of-band). No new MSRC release that week. 24 roadmap changes, led by Microsoft 365 Copilot (8) and Teams (8). 3 lifecycle milestones fall in the next 30 days. 3 Windows and security articles from Microsoft blogs.
6Windows KB releases
0MSRC release notes
24Roadmap changes across 7 products
3Windows and security articles
Windows releases6
- Windows 10, version 1607 — KB5074974 (OOB), build 14393.869218 Dec
- Windows 10, version 1809 — KB5074975 (OOB), build 17763.814818 Dec
- Windows 10, version 21H2 — KB5074976 (OOB), build 19044.669318 Dec
- Windows 10, version 22H2 — KB5074976 (OOB), build 19045.669318 Dec
- Windows Server 2016 — KB5074974 (OOB), build 14393.869218 Dec
Windows and security news3
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
Microsoft product news10
OpenAI API changelog · 3
- Added gpt-image-1.5 and chatgpt-image-latest to the Responses API image generation tool.19 Dec
- Released gpt-image-1.5 and chatgpt-image-latest, our latest and most advanced models for image generation.16 Dec
- Released four new dated audio snapshots.15 Dec
Gemini API release notes · 2
- Introduced a breaking change to the Interactions API in v1beta.19 Dec
- Launched Gemini 3 Flash Preview, gemini-3-flash-preview, delivering fast frontier-class performance that rivals larger models at a fraction of the cost.17 Dec
Azure Governance and Management Blog · 1
- Azure Policy: Required Actions for Docker Content Trust Deprecation in Azure Container Registry17 Dec
PowerShell release notes · 1
Azure CLI release notes · 1
- Azure CLI 2.66.217 Dec
Sysinternals Blog · 1
Windows 365 what's new · 1
Microsoft 365 roadmap24
Microsoft 365 Copilot · 8
- Microsoft Copilot (Microsoft 365): Recommended Notebooks in Copilot Notebooks19 Dec
- Microsoft Copilot (Microsoft 365): Suggested References in Copilot Notebooks19 Dec
- Microsoft Copilot (Microsoft 365): [Copilot Chat] Agent mode in Word enables conversational support to create, edit and refine document content from chat19 Dec
5 more
- Microsoft 365 admin center: Manage SharePoint agents via Agents page17 Dec
- Microsoft Copilot (Microsoft 365): Copilot for PowerPoint will help you build your story's narrative17 Dec
- Microsoft Copilot (Microsoft 365): Copilot uses enterprise assets hosted on SharePoint OAL or Templafy when creating a slide16 Dec
- Microsoft Copilot (Microsoft 365): Copilot uses enterprise assets hosted on SharePoint OAL or Templafy when creating a slide16 Dec
- Microsoft Copilot (Microsoft 365): Copilot uses enterprise assets hosted on SharePoint OAL or Templafy when creating a slide16 Dec
Teams · 8
- Microsoft Teams: Enhanced Meeting Protection - Prevent Screen Capture19 Dec
- Microsoft Teams: Bulk operations summary in the Teams admin center18 Dec
- Microsoft Teams: Name pronunciation18 Dec
5 more
- Microsoft Teams: Remote contact management for Teams Phone devices in Teams admin center18 Dec
- Microsoft Teams: Ability for meeting participants to edit their display name17 Dec
- Microsoft Teams: Polls support in Teams Town hall [Premium]17 Dec
- Microsoft Teams: Ultra-low latency (ULL) attendee experience for Teams Town hall17 Dec
- Microsoft Teams: Intelligent meeting recap available in multi-tenant set ups16 Dec
Purview · 3
- Microsoft Purview Compliance Portal: Custom CC policy as IRM indicator18 Dec
- Microsoft Purview Compliance Portal: Data Loss Prevention-Alert Classification Property for DLP Alerts on Purview Portal16 Dec
- Microsoft Purview compliance portal: Information Protection - On demand classification for files on Windows devices16 Dec
Exchange · 2
- Exchange: Message Trace - Custom Retention19 Dec
- Microsoft 365: SMTP onboarding to App Role Based Access Control19 Dec
3 more products · 3 changes
Defender · 1
- Microsoft Teams integration with Microsoft Defender for Office Tenant/Allow Block List for domains17 Dec
Microsoft 365 admin center · 1
Outlook · 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.