WEEKLY BRIEFING · 13 APR – 19 APR 2026 · UTC
Full source inventory · public sources only
Week 16 sources
Microsoft published 18 Windows KB releases (12 security, 6 out-of-band). MSRC published April 2026 Security Updates. 23 roadmap changes, led by Microsoft 365 Copilot (7) and Outlook (6). CISA added 6 Microsoft CVEs to its Known Exploited Vulnerabilities catalog. 3 lifecycle milestones fall in the next 30 days. 17 Azure updates, including 4 retirements. 8 Windows and security articles from Microsoft blogs.
18Windows KB releases
1MSRC release note
23Roadmap changes across 6 products
8Windows and security articles
6Microsoft CVEs added to CISA KEV
Security to act on6
- CVE-2026-32201 — Microsoft SharePoint Server Improper Input Validation VulnerabilityKEV 14 Apr
- CVE-2009-0238 — Microsoft Office Remote Code ExecutionKEV 14 Apr
- CVE-2025-60710 — Microsoft Windows Link Following VulnerabilityKEV 13 Apr
- CVE-2023-36424 — Microsoft Windows Out-of-Bounds Read VulnerabilityKEV 13 Apr
- CVE-2023-21529 — Microsoft Exchange Server Deserialization of Untrusted Data VulnerabilityKEV 13 Apr
- CVE-2012-1854 — Microsoft Visual Basic for Applications Insecure Library Loading VulnerabilityKEV 13 Apr
Windows releases18
- Windows 10, version 1607 — KB5091572 (OOB), build 14393.906219 Apr
- Windows 10, version 1809 — KB5091573 (OOB), build 17763.864719 Apr
- Windows Server 2016 — KB5091572 (OOB), build 14393.906219 Apr
- Windows Server 2019 — KB5091573 (OOB), build 17763.864719 Apr
- Windows Server 2022 — KB5091575 (OOB), build 20348.502419 Apr
13 more
- Windows Server 2025 — KB5091157 (OOB), build 26100.3269819 Apr
- Windows 10, version 1607 — KB5082198 (B), build 14393.906014 Apr
- Windows 10, version 1809 — KB5082123 (B), build 17763.864414 Apr
- Windows 10, version 21H2 — KB5082200 (B), build 19044.718414 Apr
- Windows 10, version 22H2 — KB5082200 (B), build 19045.718414 Apr
- Windows 11, version 23H2 — KB5082052 (B), build 22631.693614 Apr
- Windows 11, version 24H2 — KB5083769 (B), build 26100.824614 Apr
- Windows 11, version 25H2 — KB5083769 (B), build 26200.824614 Apr
- Windows 11, version 26H1 — KB5083768 (B), build 28000.183614 Apr
- Windows Server 2016 — KB5082198 (B), build 14393.906014 Apr
- Windows Server 2019 — KB5082123 (B), build 17763.864414 Apr
- Windows Server 2022 — KB5082142 (B), build 20348.502014 Apr
- Windows Server 2025 — KB5082063 (B), build 26100.3269014 Apr
MSRC security releases1
Windows and security news8
- Announcing Windows 11 Insider Preview Build 28020.1863 (Canary Channel)17 Apr
- Announcing Windows 11 Insider Preview Build for Canary Channel 29570.100017 Apr
- Releasing Windows 11 Builds 26100.8313 and 26200.8313 to the Release Preview Channel17 Apr
- Announcing Windows 11 Insider Preview Build 26220.8271 (Beta Channel)17 Apr
- Announcing Windows 11 Insider Preview Build 26300.8276 (Dev Channel)17 Apr
Lifecycle milestones in the next 30 days3
- Retirement: Azure Application Gateway v1 28 Apr
- Retirement: Custom Commands 30 Apr
- End of servicing: .NET 9 12 May
Product news30
Microsoft Graph · 9
- Files (beta): 2 API change passages17 Apr
- Files (v1.0): 2 API change passages17 Apr
- Security (beta): 2 API change passages17 Apr
6 more
Microsoft 365 Blog · 4
- AI is a Team Sport – Announcing our first wave of Guest Speakers at M365 Community Conference 202618 Apr
- Debugging the future of work: Microsoft 365 Community Conference 202616 Apr
- Apply sensitivity labels with custom permissions in Office for the web14 Apr
Google Gemini · 3
- Launched Gemini 3.1 Flash TTS Preview, our cost-efficient, expressive, and steerable text to speech model.15 Apr
- Deprecation announcement: The gemini-robotics-er-1.5-preview model will be shut down on April 30, 2026 at 9AM PST.14 Apr
- Released gemini-robotics-er-1.6-preview, our updated robotics model.14 Apr
Purview · 3
- Deploy scalable ring‑fenced Purview operations with Administrative Units18 Apr
- Data Security Posture Reports15 Apr
- Data Security Posture Reports (Custom Workspace and Charts)15 Apr
Azure · 1
Azure Virtual Desktop · 1
dbatools · 1
- dbatools 2.8.018 Apr
DnsClientX · 1
- DnsClientX 1.0.513 Apr
GitLab · 1
- GitLab 18.1116 Apr
Global Secure Access · 1
Microsoft Graph PowerShell SDK · 1
OpenAI · 1
Ubiquiti UniFi · 1
Windows · 1
Windows 365 · 1
Azure updates17
- Generally available: Anthropic Claude Opus 4.7 on Azure Databricks17 Apr
- Retirement: Azure Functions runtime v3 on Linux Consumption will stop running September 30, 202617 Apr
- Generally Available: Configure AKS backup using a single Azure CLI command17 Apr
- Retirement: Azure Kubernetes Service support for Ubuntu 22.0416 Apr
- Generally Available: User and group quota reports in Azure NetApp Files16 Apr
12 more
- Retirement: End of life reminder of HBv2/HC-Series/NP-Series Azure Virtual Machine in Azure Batch Pool15 Apr
- Generally Available: Encrypt Premium SSD v2 and Ultra Disks with Cross Tenant Customer Managed Keys15 Apr
- Generally Available: Azure Site Recovery support for Windows Azure VMs with NVMe disk controllers14 Apr
- Update: Minimum billable object size for cooler storage tiers14 Apr
- Generally Available: Smart Tier (Azure Blob and Data Lake Storage)14 Apr
- Generally Available: Azure File Sync in Belgium Central, Malaysia West, and Indonesia Central13 Apr
- Public Preview: Managed identity support for graphical session recording13 Apr
- Generally Available: Azure Storage Mover now available in Azure Government (US)13 Apr
- Generally Available: Granular Encryption-in-Transit Controls for SMB and NFS on Azure Files13 Apr
- Public Preview: Monitor AKS applications with OpenTelemetry and Azure Monitor13 Apr
- Retirement: Azure Managed Grafana Essential SKU will retire on March 30, 202713 Apr
- Public Preview: StandardV2 NAT Gateway as an outbound type for AKS13 Apr
From the community2
Microsoft 365 roadmap23
Microsoft 365 Copilot · 7
- Microsoft Copilot (Microsoft 365): Generative-AI skills for Create in Microsoft 365 Copilot app for Government Clouds13 Apr
- Microsoft Copilot (Microsoft 365): Intelligent meeting recap can summarize content shared on screen13 Apr
- Microsoft Copilot (Microsoft 365): Researcher Agent for GCC13 Apr
4 more
- Microsoft Copilot (Microsoft 365): Rich Bing web answer cards on M365 Copilot13 Apr
- Microsoft Copilot (Microsoft 365): See a summary from Copilot of the latest changes and comments in the Word, Excel, and PowerPoint backstage view.13 Apr
- Microsoft Copilot (Microsoft 365): Updated Copilot Notebooks UX13 Apr
- Microsoft Copilot (Microsoft 365): Upload Local Files now Support .eml and .msg file types13 Apr
Outlook · 6
- Outlook: Save calendar events as .ics17 Apr
- Outlook: Prepare for meetings with Copilot in classic Outlook for Windows15 Apr
- Outlook: Scheduling with Copilot chat in classic Outlook for Windows15 Apr
3 more
Viva · 4
- Microsoft Viva: Copilot Dashboard - Broader access to M365 Copilot Chat insights15 Apr
- Microsoft Viva: [Engage] More for you feed when opening posts14 Apr
- Microsoft Viva: Copilot Analytics: Copilot adoption PBI version update including Power user insights.13 Apr
Purview · 3
- Microsoft Purview: Data Security Posture Management for AI: Fabric integration in Data Risk Assessment17 Apr
- Microsoft Purview: Information Protection– Override manually applied labels and Remove labels with Auto-labeling14 Apr
- Microsoft Purviewl: Data Lifecycle Management – Separate Retention policies for Copilots and AI Apps13 Apr
2 more products · 3 changes
OneDrive · 2
- OneDrive: Improved finding and browsing document libraries on iPhone and iPad16 Apr
- OneDrive: Improved Shared file experience on iPhone and iPad15 Apr
Teams · 1
Other public updates40
- Take action: Out-of-band updates released for Windows Server to address two issues19 Apr
- Microsoft Teams: Meeting organizers can automatically start transcription without recording17 Apr
- Microsoft Teams admin center: Events license management for Attendee Capacity Pack licenses17 Apr
- First channel in new Microsoft Teams will default to threaded conversation layout17 Apr
- Interim guidance for Egypt DST changes 202617 Apr
35 more
- Create and edit SharePoint pages with Copilot-powered AI16 Apr
- Agent Builder in Microsoft 365 Copilot: Updates to the agent creation experience16 Apr
- Copilot entry point changes in Excel16 Apr
- General Availability: Microsoft Entra passkeys on Windows16 Apr
- Create charts on pages with AI in SharePoint16 Apr
- Power Apps - Enable online mode to access Dataverse for Canvas apps16 Apr
- Exchange Online, SharePoint Online, and Microsoft Teams: April 2026 industry-wide DigiCert Global Root CA (G1) distrust16 Apr
- Microsoft Purview eDiscovery: Naming and description fields will restrict certain special characters16 Apr
- Power Apps - Supervise autonomous agents with agent feed16 Apr
- Message center post structure updates may require admin script changes16 Apr
- Modernized Change Management for Microsoft 36516 Apr
- Planned breaking changes to ASIM KQL functions used by Microsoft Sentinel for Developers15 Apr
- Microsoft Purview: Data Lifecycle Management- Azure PST Import15 Apr
- Microsoft Purview: Migration tool in Unified Catalog to migrate classic glossary terms15 Apr
- Assign participants to breakout rooms using CSV import in Microsoft Teams meetings15 Apr
- Use Copilot to explain selected slide content in PowerPoint Live15 Apr
- Submit agent to the Agent Store from Agent Builder15 Apr
- Microsoft Purview for agents: AI observability and insider risk management now generally available15 Apr
- Expanded visibility for the Teams Reader role in the Teams admin center15 Apr
- Organizational Data Export Capability for Tenant Admins15 Apr
- Microsoft Intune In Development for April 2026 is now available15 Apr
- Updates available for Microsoft 365 Apps for all channels15 Apr
- The April 2026 Scan Cab is available14 Apr
- Remote Desktop adds new safeguards for connections opened from RDP files14 Apr
- Notice: The April 2026 Scan Cab for Microsoft updates is delayed14 Apr
- Second deployment phase for Kerberos RC4 hardening begins with the April 2026 Windows security update14 Apr
- The April 2026 Windows security update is now available14 Apr
- Microsoft Defender for Office 365: Enhancing how we handle promotional mail13 Apr
- Microsoft Entra: Passkeys in registration campaigns update13 Apr
- Microsoft 365 Copilot Chat: Use prepaid Copilot Credits without Pay‑As‑You‑Go billing13 Apr
- Queues app on Microsoft Teams mobile13 Apr
- Microsoft Purview | Information Protection: Sensitivity label inheritance for Teams meeting artifacts13 Apr
- Broader Windows Autopatch availability to Microsoft 365 Government Community Cloud (GCC)13 Apr
- Support for Office LTSC 2021, and additional apps will end on October 13, 202613 Apr
- Power Apps - Tenant-Level Microsoft 365 Copilot Settings to Enable Dataverse Data Access Announcement13 Apr
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.