WEEKLY BRIEFING · 14 SEP – 20 SEP 2026 · UTC
Public sources only
210 public updates in week 38
Microsoft published 12 Windows KB releases (12 out-of-band). No new MSRC release that week. 87 roadmap changes, led by Microsoft 365 Copilot (20) and Purview (17). Microsoft updated 3 Windows known issues, all resolved. 50 lifecycle milestones fall in the next 30 days. 16 Azure updates, including 1 retirement. 13 Windows and security articles from Microsoft blogs.
12Windows KB releases
0MSRC release notes
87Roadmap changes across 15 products
13Windows and security articles
Windows releases12
- Windows 10, version 1607 — KB5129239 (OOB), build 14393.951414 Sep
- Windows 10, version 1809 — KB5129238 (OOB), build 17763.924714 Sep
- Windows 10, version 21H2 — KB5129236 (OOB), build 19044.772714 Sep
- Windows 10, version 22H2 — KB5129236 (OOB), build 19045.772714 Sep
- Windows 11, version 23H2 — KB5129242 (OOB), build 22631.758414 Sep
7 more
- Windows 11, version 24H2 — KB5129195 (OOB), build 26100.945714 Sep
- Windows 11, version 25H2 — KB5129195 (OOB), build 26200.945714 Sep
- Windows 11, version 26H1 — KB5129194 (OOB), build 28000.295614 Sep
- Windows Server 2016 — KB5129239 (OOB), build 14393.951414 Sep
- Windows Server 2019 — KB5129238 (OOB), build 17763.924714 Sep
- Windows Server 2022 — KB5129237 (OOB), build 20348.563114 Sep
- Windows Server 2025 — KB5129235 (OOB), build 26100.3345114 Sep
Windows and security news13
- Announcing new builds for 18 September 202618 Sep
- General Availability: User-initiated provisioning for Windows 365 Reserve17 Sep
- From guidance to action: Security fundamentals that materially reduce risk17 Sep
- Intune: Windows Health Attestation Migration to Microsoft Azure Attestation17 Sep
- Improving email security outcomes with real-world Microsoft Defender insights17 Sep
8 more
- Oracle Critical Security Patch Update Advisory - September 202615 Sep
- From DLP Alert Volume to Measurable Detection Assurance15 Sep
- 60-Day Reminder: Windows 11, version 23H2 Enterprise and Education editions reach end of updates on November 10, 202615 Sep
- Public Preview: Multi-account support for Microsoft Sentinel codeless connectors14 Sep
- 30-Day Reminder: AD FS DKM container ACL hardening begins in October 202614 Sep
- 30-Day Reminder: Windows 11, version 24H2 and Windows 10 LTSB 2016 reaching end of updates on October 13, 202614 Sep
- Take Action: Out-of-band update released to address issues from the September 2026 Windows security update14 Sep
- Locking down PAWs internet access when GSA drops14 Sep
Windows known issues updated3
Lifecycle milestones in the next 30 days50
- Retirement: SMART on FHIR Proxy in Azure Health Data Services 21 Sep
- Retirement · 11 products: Azure API for FHIR, Azure API for FHIR Gen 1 offering, Azure Container Registry ACR 2017-03-01-(GA) API, Azure FXT Edge Filer, Azure Maps Web SDK v2 Subversion (v2.0~v2.0.32) and Service Module Retirement, Azure Virtual Desktop (Classic), Container Log V1, Get AlertSummary API, Service Bus Control plane APIS v2014-09; v2015-08; v2016-07, Single URL Ping Test in Application Insights, Track 0 and 1 Service Bus SDKs and SBMP protocol 30 Sep
- Retirement · 5 products: Azure Anomaly Detector, Azure Metrics Advisor, Azure Personalizer, Personalizer, Translator Billing Model 1 Oct
- Retirement · 10 products: Access 2021, Excel 2021, Office 2021, OneNote 2021, Outlook 2021, PowerPoint 2021, Project 2021, Publisher 2021, Visio 2021, Word 2021 13 Oct
- End of support · 16 products: Access LTSC 2021, Excel LTSC 2021, Office LTSC 2021, Office LTSC 2021 for Mac, OneNote LTSC 2021, Outlook LTSC 2021, PowerPoint LTSC 2021, Project 2021 (LTSC), Publisher LTSC 2021, Skype for Business LTSC 2021, Visio LTSC 2021, Windows 10 2016 LTSB, Windows 10 IoT Enterprise LTSB 2016, Windows Server 2012 R2, Extended Security Update Year 3, Windows Server 2012, Extended Security Update Year 3, Word LTSC 2021 13 Oct
- End of servicing · 2 products: Dynamics 365 Business Central on-premises (Modern Policy), 2025 release wave 1, version 26.x, Windows 11 Home and Pro, Version 24H2 13 Oct
- Moves to extended support · 5 products: Office LTSC 2021 for Mac, Windows Server 2022, Windows Server 2022 Datacenter: Azure Edition, Windows Server 2022 Standard (MSL), Windows Server IoT 2022 13 Oct
Microsoft product news73
OpenAI News · 11
- Introducing the Australian Youth Safety Blueprint18 Sep
- How Cooley is accelerating IPO work with ChatGPT17 Sep
- Introducing Astra for Law17 Sep
8 more
- Our framework for reporting model misalignment16 Sep
- Helping older adults use AI in everyday life16 Sep
- Reimagining advertising with AI16 Sep
- Hex turns complex analysis into visual reports with GPT‑6 Astra16 Sep
- How to connect AI usage to business value16 Sep
- How workers are unlocking new ways of working16 Sep
- How Fyxer built an AI executive assistant people trust14 Sep
- Perplexity trusts GPT-6 Astra with end-to-end systems14 Sep
Jamf Blog · 8
- Jamf + Ravenna: Give employees a simpler way to get Mac support18 Sep
- What scales when headcount doubles18 Sep
- JNUC 2026 keynote recap: Power Up!17 Sep
5 more
- Resolving help desk requests with enterprise-safe Jamf automations17 Sep
- Beyond model guardrails, part 1: containing the agent16 Sep
- Taming AI: What it really takes to govern AI at enterprise scale15 Sep
- OS 27 Release: Key Takeaways for Educational Institutions14 Sep
- OS 27 release: key takeaways for Apple enterprise admins14 Sep
Windows 365 what's new · 8
- iOS preview support for external identities14 Sep
- iOS preview support for in-session passwordless authentication14 Sep
- macOS support for external identities is now generally available14 Sep
5 more
- RDP Multipath availability in Azure Government14 Sep
- RDP Shortpath for public networks and RDP Multipath with UDP support in Windows App for macOS Beta14 Sep
- RDP Shortpath with TURN availability in Azure Government14 Sep
- Use TWAIN scanners in remote sessions (Public Preview)14 Sep
- User provisioning for Windows 365 Reserve (Generally Available)14 Sep
Microsoft Fabric Updates Blog · 7
- Upcoming changes to legacy Teams and Outlook activities in Fabric Data Factory pipelines17 Sep
- Soft delete for On-premises data gateways in Microsoft Fabric (Preview)17 Sep
- Mirroring for Google BigQuery in Microsoft Fabric (Generally Available)17 Sep
4 more
- Moving off ODBC — A self-serve scanner for your ADBC migration15 Sep
- Diagnose Fabric Data Warehouse workloads with the SQL DW operations skill (Generally Available)14 Sep
- From Business Events, Fabric Events, and Azure Events to Real-Time Hub14 Sep
- Designing scalable Business Events in Microsoft Fabric14 Sep
Azure Infrastructure Blog · 4
- FinOps-Ready Azure Landing Zone - Part 218 Sep
- Automating Azure VM Image Baking and Validation with Packer and Azure DevOps18 Sep
- Automating Private Endpoint DNS Across Azure Tenants with Azure Policy and Azure Lighthouse17 Sep
SQL Server Blog · 4
- mssql-django 2.0: Now with mssql-python18 Sep
- Move to Modern SQL Server Licensing with Confidence16 Sep
- Cumulative Update #9 for SQL Server 2025 RTM16 Sep
1 more
Claude Platform release notes · 4
- For cache diagnostics, a response to a request that sends the cache-diagnosis-2026-04-07 beta header now always includes the diagnostics field.18 Sep
- The Compliance API local session endpoints now also return transcripts of Claude in Chrome sessions (product_surface value claude_in_chrome), in beta for Claude Enterpri…18 Sep
- The Messages API can now compact a conversation on demand on the Claude API, in beta with the compact-2026-09-04 beta header.14 Sep
Microsoft Power Platform Blog · 3
- Extend Server Logic with Power Automate Cloud Flows in Power Pages18 Sep
- What’s new in Power Platform: September 2026 feature update17 Sep
- Microsoft-Managed SSL/TLS Certificates for Custom Domains Now Available in Power Pages16 Sep
Gemini API release notes · 3
- Gemini 2.5 models access update18 Sep
- Antigravity Agent 09-202617 Sep
- Gemini 3.8 Live and Gemini 3.8 Live Extended Thinking generally available (GA)15 Sep
Microsoft Entra Blog · 3
- Public preview of self-service onboarding for new Microsoft Entra App Gallery applications17 Sep
- Replace VPN access with identity-driven security16 Sep
- Simplify Employee Identity Lifecycle with HiBob and Microsoft Entra14 Sep
Google Gemini Blog · 3
- Introducing Gemini 3.8 Live and 3.8 Live Extended Thinking15 Sep
- 4 ways to tackle household chores with Gemini15 Sep
- DevFest is back14 Sep
Jamf Cloud status history · 2
- Fulfillment services16 Sep
- Jamf Security Cloud (ZTNA): IPSec infrastructure upgrade for us-east-114 Sep
Power BI Updates Blog · 1
PowerShell Team Blog · 1
Microsoft Intune Blog · 1
Microsoft Graph PowerShell SDK release notes · 1
Microsoft OneDrive Blog · 1
Microsoft Teams Blog · 1
Microsoft 365 Developer Blog · 1
Microsoft Entra Connect releases and retirements · 1
Exchange Team Blog · 1
Azure Governance and Management Blog · 1
OpenAI API changelog · 1
Microsoft 365 Blog · 1
Microsoft Intune what's new · 1
Azure updates16
- [In preview] Public Preview: Foundry Routines in Foundry Agent Service18 Sep
- [In preview] Public Preview: Mdsv4 and Msv4 Series Virtual Machines for SAP18 Sep
- [Launched] Generally Available: Enable and disable controls for Microsoft Foundry agents in Agent 36518 Sep
- [In preview] Public Preview: Network egress controls for hosted agents in Microsoft Foundry18 Sep
- [Launched] Generally Available: Publishing Microsoft Foundry agents to Microsoft 365 Copilot and Teams18 Sep
11 more
- [Launched] Generally Available: Logical replication slot sync status metric for Azure PostgreSQL Flexible Server18 Sep
- [Launched] Generally Available: New and improved troubleshooting guides for Azure Database for PostgreSQL18 Sep
- [Launched] Generally Available: PG18 support for Azure Database for PostgreSQL elastic clusters18 Sep
- [In preview] Public Preview: Azure Payments HSM v217 Sep
- [Launched] Generally Available: High-scale mesh in Azure Virtual Network Manager17 Sep
- Retirement Update: SAP container images removed October 14, 202616 Sep
- [In preview] Public Preview: Azure SQL updates for mid-September 202616 Sep
- [In preview] Public Preview: Azure Red Hat OpenShift with hosted control planes16 Sep
- [In preview] Public Preview: PostgreSQL skills and MCP plugin for Azure Database for PostgreSQL16 Sep
- Announcing: New Windows App client-side endpoints for Azure Virtual Desktop14 Sep
- [In preview] Public Preview: HTTP/3 over QUIC support in Azure Application Gateway14 Sep
From the community9
Microsoft 365 roadmap87
Microsoft 365 Copilot · 20
- Microsoft Copilot (Microsoft 365): Content Sources in Copilot Chat18 Sep
- Microsoft Copilot (Microsoft 365): Copilot Chat - Session Persistence Enhancement18 Sep
- Microsoft Copilot (Microsoft 365): Copilot Cowork for Government Clouds18 Sep
17 more
- Microsoft Copilot (Microsoft 365): Copilot in PowerPoint for Government clouds18 Sep
- Microsoft Copilot (Microsoft 365): Edit your document with Copilot in PowerPoint in Government Clouds18 Sep
- Microsoft Copilot (Microsoft 365): Edit your document with Copilot in PowerPoint in Government Clouds18 Sep
- Microsoft Copilot (Microsoft 365): Realtime voice interactions in Word and PowerPoint18 Sep
- Microsoft Copilot (Microsoft 365): Export Copilot metrics in the Copilot Dashboard17 Sep
- Microsoft Edge: Ask Copilot about an image17 Sep
- Microsoft 365 app: Add references to your Copilot Notebooks from the Quick Access section in Search on the M365 Copilot app16 Sep
- Microsoft Copilot (Microsoft 365): Deep citations in Copilot16 Sep
- Microsoft Copilot (Microsoft 365): Metadata understanding support for queries scoped to SharePoint document libraries or folders16 Sep
- Microsoft Copilot (Microsoft 365): Power BI reports as references in Copilot Notebooks16 Sep
- Microsoft Copilot (Microsoft 365): Copilot Chat can now better match search results from Scanned PDFs15 Sep
- Microsoft Copilot (Microsoft 365): Microsoft 365 Copilot – Chat & Search Browser Extension for Chrome15 Sep
- Microsoft Copilot (Microsoft 365): Semantic Goodbye word for voice in Microsoft 365 Copilot15 Sep
- Microsoft Copilot (Microsoft 365): [Copilot Extensibility][Search UX] Rich entity representation for connectors in Search results15 Sep
- Microsoft Edge: Upgraded Copilot new tab page15 Sep
- Microsoft Copilot (Microsoft 365): [Copilot Extensibility] Users in GCC-M will able to use custom engine agents14 Sep
- Planner: Capabilities in Microsoft Cowork14 Sep
Purview · 17
- Endpoint Data Loss Prevention — Endpoint DLP now supports a pre curated list of file extensions for the file extension condition18 Sep
- Microsoft Purview: Data Lifecycle Management-Legacy Teams retention policies covering Copilot will be treated as Teams-only18 Sep
- Microsoft Purview: Unified Classification Management Experience18 Sep
14 more
- Microsoft Purview: Archive SharePoint files under retention policies17 Sep
- Microsoft Purview compliance portal: Endpoint Data Loss Prevention - Endpoint DLP shows full path of target domain16 Sep
- Microsoft Purview Compliance Portal: Expanding access to Diagnostics to Compliance Administrator, Security Administrator and Organization Management16 Sep
- Microsoft Purview Compliance Portal: Information Protection - Sensitivity Label support in Engage16 Sep
- Microsoft Purview compliance portal: Insider Risk Management - Collection policies impact on IRM16 Sep
- Microsoft Purview compliance portal: Insider Risk Management: Data Security Investigations integration16 Sep
- Microsoft Purview | Communication Compliance: Integration with Power Automate (GCC-High and DoD)16 Sep
- Microsoft Purview: Data Lifecycle Management – Insights and policy recommendations on Microsoft Copilot and AI Apps interactions for better Data Security and Compliance posture16 Sep
- Microsoft Purview: Data Loss Prevention - User Based Aggregation of DLP Alerts16 Sep
- Microsoft Purview: Data Loss Prevention-Expanded inline protection for unmanaged apps in Edge for Business16 Sep
- Microsoft Purview: Data Loss Prevention-Upgraded inline protection for Microsoft Entra-managed apps in Edge for Business16 Sep
- Microsoft Purview: Endpoint Data Loss Prevention - Expand protection to Copilot + PC devices for Recall snapshots through custom policies15 Sep
- Microsoft Purview: Endpoint Data Loss Prevention - Allow customer to scope JIT Audit to specific user or user group14 Sep
- Microsoft Purview: Endpoint Data Loss Prevention – Ability to protect files stored in the excluded folders in Windows14 Sep
Teams · 14
- Microsoft Teams: Intelligent recap for DoD18 Sep
- Microsoft Teams: Customize blocked file extensions for Weaponizable File Protection17 Sep
- Microsoft Teams: Explicit recording and transcription consent for PSTN participants now available in GCC High and DoD17 Sep
11 more
- Microsoft Teams: Meeting Shared Files17 Sep
- Microsoft Teams: Ask Copilot from Search on Mobile16 Sep
- Microsoft Teams: External phone call routing (GCC High, DoD)16 Sep
- Microsoft Teams: Prevent presence transition to "Do not disturb" setting when screen sharing (GCC High, DoD)16 Sep
- Microsoft Teams: Report suspicious guest invitations16 Sep
- Microsoft Teams: Temporarily pause all notifications16 Sep
- Microsoft Teams: Express voice enrollment in Microsoft Teams15 Sep
- Microsoft Teams: New controls for quick views in the chat list15 Sep
- Microsoft Teams: Two presenters can share their screens or windows simultaneously in meetings15 Sep
- Microsoft Teams: Hide Organizer name in Calendar View on Teams Panels14 Sep
- Microsoft Teams: See more messages on mobile14 Sep
Dynamics 365 · 6
- Dynamics 365 Finance: Core finance - Improve financial journal processing and control18 Sep
- Dynamics 365 Field Service: Book Work Orders with Multiple Requirements17 Sep
- Dynamics 365 Field Service: Manage rental service demand with work order requests17 Sep
3 more
11 more products · 30 changes
Microsoft Edge · 6
- Microsoft Edge: Autolaunch opt-in experience for managed devices18 Sep
- Microsoft Edge: Enhanced Autofill17 Sep
- Microsoft Edge: Security Update Alerts in the Edge management service17 Sep
- Microsoft Edge: Improved website compatibility with site troubleshooting controls16 Sep
- Microsoft Edge: v.153 - Changes to local IP address detection for proxy auto-config (PAC) scripts15 Sep
- Microsoft Edge: v.153 - Tracking prevention when browsing InPrivate15 Sep
Outlook · 5
- Outlook: Multi Account Search17 Sep
- Outlook: Enriching profile cards with custom, organization-specific properties16 Sep
- Outlook: Spell check before sending emails in new Outlook15 Sep
- Outlook: Copilot Settings in classic Outlook for Windows14 Sep
- Outlook: New Cloud Policy controls14 Sep
Access · 3
- Access: Enable zoom magnification to Microsoft Access for Forms, Tables, Queries14 Sep
- Access: Rounded corners on Access form controls14 Sep
- Access: Zooming for Continuous Forms and Multiple-Items Forms14 Sep
Copilot Studio · 3
- Microsoft Copilot Studio: Cost visibility in Agent Evaluations15 Sep
- Microsoft Copilot Studio: Cost visibility in Monitor tab15 Sep
- Microsoft Copilot Studio: Cost visibility in Preview Chat and History15 Sep
PowerPoint · 3
- PowerPoint: Create on brand presentations with additional brand assets18 Sep
- PowerPoint: Async Notifications for PowerPoint Agent (Web)15 Sep
- PowerPoint: Async Notifications for PowerPoint Agent (Windows Desktop)15 Sep
SharePoint · 3
- Microsoft 365 admin center: Optional Public CDN Support in Brand Center Setup17 Sep
- SharePoint: New Mobile Experience on iOS and Android16 Sep
- SharePoint: AI citations analytics for documents and pages15 Sep
OneDrive · 2
- OneDrive: Exclude specific folders from syncing15 Sep
- OneDrive: PDF annotation for sensitivity-label protected PDFs in the OneDrive apps (iOS and Android)14 Sep
Viva · 2
- Microsoft Viva: Copilot Analytics - Power user insights in Copilot dashboard16 Sep
- Microsoft Viva: Copilot Analytics: Copilot usage snapshot PBI at day level with fresh data15 Sep
Microsoft 365 · 1
Microsoft 365 app · 1
Planner · 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.