Windows

October 2026

• Fri 9 Oct Install and upgrade Revised by Microsoft · Windows 10 Version 1607 and Windows Server 2016 Security Baseline.zip
• Fri 9 Oct Install and upgrade Revised by Microsoft · Windows 10 Version 1809 and Windows Server 2019 Security Baseline.zip
• Fri 9 Oct Install and upgrade Revised by Microsoft · Windows 10 Version 20H2 and Windows Server Version 20H2 Security Baseline.zip
• Fri 9 Oct Install and upgrade Revised by Microsoft · Windows 10 version 22H2 Security Baseline.zip
• Fri 9 Oct Install and upgrade Revised by Microsoft · Windows 11 v23H2 Security Baseline.zip
• Fri 9 Oct Install and upgrade Revised by Microsoft · Windows 11 v24H2 Security Baseline.zip
• Fri 9 Oct Install and upgrade Revised by Microsoft · Windows 11 v25H2 Security Baseline.zip
• Thu 8 Oct Install and upgrade Security baseline · Windows 11 v26H2 Security Baseline v2.zip
• Thu 8 Oct New and changed features Windows news · Take action to prevent RD Web Access rendering failures
• Thu 8 Oct New and changed features Windows news · Windows Office Hours: October 15, 2026
• Thu 8 Oct Issues and security Security news · Windows 11, version 26H2 security baseline
• Thu 8 Oct New and changed features Windows news · Prepare for Windows Update certificate rotation in 2027also on Windows message center
• Thu 8 Oct Issues and security Known issue resolved · Domain-joined devices might lose their secure trust relationship with the domain
• Thu 8 Oct Install and upgrade Security baseline · Windows 10 Version 1607 and Windows Server 2016 Security Baseline.zip
• Thu 8 Oct Install and upgrade Security baseline · Windows 10 Version 1809 and Windows Server 2019 Security Baseline.zip
• Thu 8 Oct Install and upgrade Security baseline · Windows 10 Version 20H2 and Windows Server Version 20H2 Security Baseline.zip
• Thu 8 Oct Install and upgrade Security baseline · Windows 10 version 22H2 Security Baseline.zip
• Thu 8 Oct Install and upgrade Security baseline · Windows 11 v23H2 Security Baseline.zip
• Thu 8 Oct Install and upgrade Security baseline · Windows 11 v24H2 Security Baseline.zip
• Thu 8 Oct Install and upgrade Security baseline · Windows 11 v25H2 Security Baseline.zip
• Wed 7 Oct Requirements and endpoints Guidance changed · Delivery Optimization and Connected Cache endpoints
• Wed 7 Oct Install and upgrade Revised by Microsoft · Windows 10 Version 1607 and Windows Server 2016 Security Baseline.zip
• Wed 7 Oct Install and upgrade Revised by Microsoft · Windows 10 Version 1809 and Windows Server 2019 Security Baseline.zip
• Wed 7 Oct Install and upgrade Revised by Microsoft · Windows 10 Version 20H2 and Windows Server Version 20H2 Security Baseline.zip
• Wed 7 Oct Install and upgrade Revised by Microsoft · Windows 10 version 22H2 Security Baseline.zip
• Wed 7 Oct Install and upgrade Revised by Microsoft · Windows 11 v23H2 Security Baseline.zip
• Wed 7 Oct Install and upgrade Revised by Microsoft · Windows 11 v24H2 Security Baseline.zip
• Wed 7 Oct Install and upgrade Revised by Microsoft · Windows 11 v25H2 Security Baseline.zip
• Wed 7 Oct New and changed features Windows news · Announcing new builds for 7 October 2026
• Wed 7 Oct New and changed features Windows news · From searching to doing: Building a faster, more streamlined Windows Search
• Wed 7 Oct New and changed features Windows news · Building Windows for hybrid intelligence
• Wed 7 Oct New and changed features Windows news · Interim guidance for Manitoba time zone changes
• Tue 6 Oct Install and upgrade Revised by Microsoft · Windows 10 Version 1607 and Windows Server 2016 Security Baseline.zip
• Tue 6 Oct Install and upgrade Revised by Microsoft · Windows 10 Version 1809 and Windows Server 2019 Security Baseline.zip
• Tue 6 Oct Install and upgrade Revised by Microsoft · Windows 10 Version 20H2 and Windows Server Version 20H2 Security Baseline.zip
• Tue 6 Oct Install and upgrade Revised by Microsoft · Windows 10 version 22H2 Security Baseline.zip
• Tue 6 Oct Install and upgrade Revised by Microsoft · Windows 11 v23H2 Security Baseline.zip
• Tue 6 Oct Install and upgrade Revised by Microsoft · Windows 11 v24H2 Security Baseline.zip
• Tue 6 Oct Install and upgrade Revised by Microsoft · Windows 11 v25H2 Security Baseline.zip
• Tue 6 Oct New and changed features Windows news · Remote PC connections in Windows App on Windows is now generally available
• Fri 2 Oct Issues and security Known issue · confirmed · Applications which require AC-3 audio decoding might close unexpectedly
• Fri 2 Oct New and changed features Windows news · Announcing new builds for 2 October 2026
• Fri 2 Oct New and changed features Windows news · Windows news you can use: September 2026also on Windows message center
• Thu 1 Oct New and changed features Windows news · What’s new in Windows 365: September 2026 recap

September 2026

• Wed 30 Sep New and changed features Windows news · Windows settings backup is now enabled by default for eligible devices
• Wed 30 Sep New and changed features Windows news · Introducing Ctrl + Manage: Practical Windows management in 30 minutes
• Wed 30 Sep New and changed features Windows news · Introducing Ctrl + Manage: Your shortcut to practical Windows management
• Wed 30 Sep Issues and security Known issue resolved · Incorrect notifications that "Microsoft Defender Antivirus is turned off"
• Tue 29 Sep New and changed features Windows feature update · How to get the Windows 11 2026 Updatealso on Windows Experience Blog
• Tue 29 Sep Issues and security Known issue · mitigated · USB audio devices might fail to start or produce no sound
• Tue 29 Sep Issues and security Known issue · mitigated · Devices might experience a black screen or desktop loading issues after sign-in
• Tue 29 Sep Install and upgrade Revised by Microsoft · Windows 10 Version 1607 and Windows Server 2016 Security Baseline.zip
• Tue 29 Sep Install and upgrade Revised by Microsoft · Windows 10 Version 1809 and Windows Server 2019 Security Baseline.zip
• Tue 29 Sep Install and upgrade Revised by Microsoft · Windows 10 Version 20H2 and Windows Server Version 20H2 Security Baseline.zip
• Tue 29 Sep Install and upgrade Revised by Microsoft · Windows 10 version 22H2 Security Baseline.zip
• Tue 29 Sep Install and upgrade Revised by Microsoft · Windows 11 v23H2 Security Baseline.zip
• Tue 29 Sep Install and upgrade Revised by Microsoft · Windows 11 v24H2 Security Baseline.zip
• Tue 29 Sep Install and upgrade Revised by Microsoft · Windows 11 v25H2 Security Baseline.zip
• Tue 29 Sep Install and upgrade Group Policy reference · Group Policy Settings Reference Spreadsheet for Windows 11 2026 Update (26H2)
• Tue 29 Sep Install and upgrade Administrative templates · Administrative Templates (.admx) for Windows 11 2026 Update (26H2)
• Tue 29 Sep New and changed features Windows news · An IT pro’s guide to Windows 11, version 26H2
• Tue 29 Sep New and changed features Windows news · Windows settings backup becoming a new resilience baseline
• Mon 28 Sep New and changed features Product news · Windows 11, version 26H2 Settings Catalog update
• Fri 25 Sep New and changed features Windows news · Announcing new builds for 25 September 2026
• Fri 25 Sep New and changed features Windows news · Interim time zone guidance for Alberta, British Columbia, and Morocco
• Thu 24 Sep Retirements and dates Windows news · Windows Deployment Services (WDS) deprecation in the next Windows Server release
• Wed 23 Sep New and changed features Windows news · Giving you more control over camera, microphone, and location
• Tue 22 Sep New and changed features Windows news · (Updated) The September 2026 Windows non-security preview update is now available
• Tue 22 Sep Install and upgrade Preview release · KB5124006 · Windows 11, version 26H1
• Tue 22 Sep Install and upgrade Preview release · KB5124010 · Windows 11, version 26H2 +2
• Mon 21 Sep New and changed features Windows news · Beyond the Build – September 2026
• Fri 18 Sep New and changed features Windows news · Announcing new builds for 18 September 2026
• Thu 17 Sep New and changed features Windows news · Intune: Windows Health Attestation Migration to Microsoft Azure Attestation
• Thu 17 Sep New and changed features Windows news · General Availability: User-initiated provisioning for Windows 365 Reserve
• Thu 17 Sep Issues and security Known issue resolved · Remote Desktop Services might stop responding after Sept. 2026 security update
• Wed 16 Sep New and changed features Product news · Moving from Windows Autopilot to Windows Autopilot device preparation
• Tue 15 Sep New and changed features Windows news · 60-Day Reminder: Windows 11, version 23H2 Enterprise and Education editions reach end of updates on November 10, 2026
• Mon 14 Sep Issues and security Out-of-band release · KB5129194 · Windows 11, version 26H1
• Mon 14 Sep Issues and security Out-of-band release · KB5129195 · Windows 11, version 24H2 +1
• Mon 14 Sep Issues and security Out-of-band release · KB5129236 · Windows 10, version 21H2 +1
• Mon 14 Sep Issues and security Out-of-band release · KB5129238 · Windows 10, version 1809 +1
• Mon 14 Sep Issues and security Out-of-band release · KB5129239 · Windows 10, version 1607 +1
• Mon 14 Sep Issues and security Out-of-band release · KB5129242 · Windows 11, version 23H2
• Mon 14 Sep New and changed features Azure update · Announcing: New Windows App client-side endpoints for Azure Virtual Desktop
• Mon 14 Sep New and changed features Windows news · 30-Day Reminder: AD FS DKM container ACL hardening begins in October 2026
• Mon 14 Sep New and changed features Windows news · 30-Day Reminder: Windows 11, version 24H2 and Windows 10 LTSB 2016 reaching end of updates on October 13, 2026
• Mon 14 Sep New and changed features Windows news · Take Action: Out-of-band update released to address issues from the September 2026 Windows security update
• Mon 14 Sep Issues and security Known issue resolved · Host folder shares might be unavailable in Hyper-V-based Linux VMs
• Fri 11 Sep New and changed features Windows news · Announcing new builds for 11 September 2026
• Fri 11 Sep New and changed features Windows news · 30-Day Reminder: Windows Server 2022 will reach end of mainstream support on October 13, 2026
• Thu 10 Sep New and changed features Windows news · Announcing Windows 11 Release Preview Builds 26100.9539/26200.9539
• Thu 10 Sep New and changed features Windows news · Windows Office Hours: September 17, 2026
• Thu 10 Sep New and changed features Product news · Linux: ProcDump, Procmon, Sysmon; PipeList, ProcExp, ProcMon, PsTools, Sigcheck, Sysmon, and ZoomIt
• Thu 10 Sep New and changed features Windows news · Keep Windows activation automation working with PowerShell
• Wed 9 Sep New and changed features Windows news · IT resources to plan, prepare, and deploy Windows
• Tue 8 Sep Install and upgrade Security release · KB5122876 · Windows 10, version 1809 +1
• Tue 8 Sep Install and upgrade Security release · KB5122878 · Windows 10, version 21H2 +1
• Tue 8 Sep Install and upgrade Security release · KB5122880 · Windows 11, version 23H2
• Tue 8 Sep Install and upgrade Security release · KB5123099 · Windows 10, version 1607 +1
• Tue 8 Sep Install and upgrade Security release · KB5124008 · Windows 11, version 24H2 +1
• Tue 8 Sep Install and upgrade Security release · KB5124012 · Windows 11, version 26H1
• Tue 8 Sep Issues and security Added to CISA KEV · Microsoft Windows Link Following Vulnerability
• Tue 8 Sep Issues and security Added to CISA KEV · Microsoft Windows Heap-Based Buffer Overflow Vulnerability
• Tue 8 Sep New and changed features Windows news · Announcing new builds for 8 September 2026
• Tue 8 Sep New and changed features Windows news · Helping families and educators support safer experiences and healthier habits on Windows
• Tue 8 Sep New and changed features Windows news · Listening to families. Improving Microsoft Family.
• Tue 8 Sep New and changed features Windows news · The September 2026 Windows security update is now available
• Tue 8 Sep Issues and security Known issue resolved · Mouse customization is reset on non-English Windows devices
• Tue 8 Sep Issues and security Known issue resolved · Desktop background settings are lost or reset on some devices
• Tue 8 Sep Issues and security Known issue resolved · Microsoft Teams and Outlook might fail to launch on ARM-based devices
• Tue 8 Sep Issues and security Partner announcement · CSP price list republish: Windows 10 Enterprise LTSC 2021 Extended Security Updates
• Wed 2 Sep New and changed features Windows news · Windows news you can use: August 2026also on Windows IT Pro Blog
• Sep 2026 New and changed features Windows feature update · Windows 11, version 26H2 images are now available in the Azure Marketplace
• Tue 1 Sep New and changed features Windows news · More control for Windows Autopatch updates: quality updates, .NET Framework, and quick machine recovery
• Tue 1 Sep New and changed features Windows news · Expanding memory integrity protection across Windows devicesalso on Windows message center
• Tue 1 Sep Issues and security Product Terms · Windows Desktop Operating System — Product Terms

August 2026

• Mon 31 Aug New and changed features Windows news · Announcing new builds for 31 August 2026
• Mon 31 Aug New and changed features Windows news · Reminder: Configure firewall and proxies for smooth Windows updates
• Sun 30 Aug New and changed features Product news · Advanced Windows Firewall
• Thu 27 Aug New and changed features Windows news · Releasing Windows 11, version 26H2 to the Release Preview Channel
• Thu 27 Aug New and changed features Windows news · The August 2026 Windows non-security preview update is now available
• Thu 27 Aug New and changed features Windows news · Prepare for the removal of WMIC from Windows 11
• Thu 27 Aug New and changed features Product news · Introducing device association for Windows Autopilot device preparation
• Thu 27 Aug Install and upgrade Preview release · KB5120996 · Windows 11, version 26H1
• Thu 27 Aug Install and upgrade Preview release · KB5120998 · Windows 11, version 24H2 +1
• Tue 25 Aug New and changed features Product news · Remote Help on Windows: Unattended Support with Remote Sign-In Is Here
• Fri 21 Aug New and changed features Windows news · Announcing new builds for 21 August 2026
• Fri 21 Aug New and changed features Windows news · Preparing the Windows ecosystem for next-generation code signing
• Thu 20 Aug New and changed features Windows news · Windows 365 turns five: Cloud PCs recognized for enabling flexible, trusted workspaces at scale
• Thu 20 Aug New and changed features Windows news · New PowerShell scripts to manage Windows settings backup data
• Wed 19 Aug New and changed features Product news · Process Monitor v4.1, ZoomIt 12.3 for macOS, RDCMan v3.21, and ZoomIt v12.21
• Wed 19 Aug New and changed features Windows news · Task Manager features for visibility into AI workloadsalso on Windows message center
• Tue 18 Aug New and changed features Product news · Configure Delivery Optimization for Windows to save bandwidth and speed up deployments
• Tue 18 Aug New and changed features Windows news · Collecting Delivery Optimization logs the easy way
• Mon 17 Aug New and changed features Windows news · Announcing new builds for 17 August 2026
• Mon 17 Aug New and changed features Windows news · Improving File Explorer & Context Menu: faster, simpler, and more customizable
• Mon 17 Aug New and changed features Windows news · 60-Day Reminder: AD FS DKM container ACL hardening begins in October 2026
• Fri 14 Aug New and changed features Windows news · Announcing new Release Preview builds for 14 August 2026
• Fri 14 Aug New and changed features Windows news · 60-Day Reminder: Windows Server 2022 will reach end of mainstream support on October 13, 2026
• Fri 14 Aug New and changed features Windows news · 60-Day Reminder: Windows 11, version 24H2 and Windows 10 LTSB 2016 reaching end of updates on October 13, 2026
• Thu 13 Aug New and changed features Windows news · Windows Office Hours: August 20, 2026
• Thu 13 Aug New and changed features Windows news · Windows device recovery in 2026: A guide for IT prosalso on Windows message center
• Wed 12 Aug New and changed features Windows news · 90-Day Reminder: Windows 11, version 23H2 Enterprise and Education editions reach end of updates on November 10, 2026
• Wed 12 Aug New and changed features Product news · NotMyFault, RDCMan, ZoomIt, CoreInfo, Process Explorer, Process Monitor, and PsPing
• Tue 11 Aug Install and upgrade Security release · KB5120238 · Windows 10, version 1809 +1
• Tue 11 Aug Install and upgrade Security release · KB5120240 · Windows 11, version 23H2
• Tue 11 Aug Install and upgrade Security release · KB5120249 · Windows 10, version 21H2 +1
• Tue 11 Aug Install and upgrade Security release · KB5120418 · Windows 10, version 1607 +1
• Tue 11 Aug Install and upgrade Security release · KB5121000 · Windows 11, version 26H1
• Tue 11 Aug Install and upgrade Security release · KB5121003 · Windows 11, version 24H2 +1
• Tue 11 Aug Issues and security Added to CISA KEV · Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability
• Tue 11 Aug New and changed features Windows news · The August 2026 Windows security update is now available
• Wed 5 Aug Retirements and dates Windows news · Plan for Windows 10 Enterprise LTSC 2021 end of supportalso on Windows message center
• Mon 3 Aug New and changed features Windows news · Windows news you can use: July 2026 recap
• Mon 3 Aug New and changed features Windows news · Windows news you can use: July 2026

July 2026

• Fri 31 Jul New and changed features Windows news · Announcing new builds for 31 July 2026
• Fri 31 Jul New and changed features Windows news · Windows quality: an update on the commitment we made in March
• Fri 31 Jul New and changed features Windows news · Updates to the Windows Insider Program web experience
• Wed 29 Jul New and changed features Windows news · 90-Day Reminder: AD FS DKM container ACL hardening begins in October 2026
• Tue 28 Jul New and changed features Windows news · The July 2026 Windows non-security preview update is now available
• Tue 28 Jul Install and upgrade Preview release · KB5101681 · Windows 11, version 26H1
• Tue 28 Jul Install and upgrade Preview release · KB5101684 · Windows 11, version 24H2 +1
• Mon 27 Jul New and changed features Windows news · Announcing Windows 11 Insider Preview Build 29634.1000 for Experimental (Future Platforms)
• Fri 24 Jul New and changed features Windows news · Admin control for single sign-on prompts in Windows
• Thu 23 Jul New and changed features Windows news · UPDATED: Azure outage affecting Windows Updates and related services
• Tue 21 Jul New and changed features Windows news · Announcing Windows 11 Insider Preview Build 28120.2546 for Experimental (26H1)
• Tue 21 Jul New and changed features Windows news · Now available: Admin control for SSO prompts in Windows
• Tue 21 Jul New and changed features Windows news · RDP Multipath with redundant TCP is now generally available for Windows 365 and Azure Virtual Desktop
• Mon 20 Jul New and changed features Windows news · Announcing new builds for 20 July 2026
• Sat 18 Jul Issues and security Out-of-band release · KB5121767 · Windows 11, version 24H2 +1
• Sat 18 Jul New and changed features Windows news · Out-of-band update to address Windows update issue affecting some devices with Intel IPF driver
• Thu 16 Jul New and changed features Windows news · 90-Day Reminder: Windows Server 2022 will reach end of mainstream support on October 13, 2026
• Wed 15 Jul New and changed features Windows news · 90-Day Reminder: Windows 11, version 24H2 and Windows 10 LTSB 2016 reaching end of updates on October 13, 2026
• Wed 15 Jul New and changed features Windows news · Updated guidance explains Windows monthly updates and servicing
• Tue 14 Jul Issues and security Exploited vulnerability · Active Directory Federation Services Elevation of Privilege Vulnerability
• Tue 14 Jul Issues and security Publicly disclosed vulnerability · Windows BitLocker Security Feature Bypass Vulnerability
• Tue 14 Jul Install and upgrade Security release · KB5099414 · Windows 11, version 23H2
• Tue 14 Jul Install and upgrade Security release · KB5099535 · Windows 10, version 1607 +1
• Tue 14 Jul Install and upgrade Security release · KB5099538 · Windows 10, version 1809 +1
• Tue 14 Jul Install and upgrade Security release · KB5099539 · Windows 10, version 21H2 +1
• Tue 14 Jul Install and upgrade Security release · KB5101649 · Windows 11, version 26H1
• Tue 14 Jul Install and upgrade Security release · KB5101650 · Windows 11, version 24H2 +1
• Tue 14 Jul New and changed features Windows news · XBOX, The Coalition and NVIDIA announce a PC partnership for Gears of War: E-Day
• Tue 14 Jul New and changed features Windows news · The July 2026 Windows security update is now available
• Tue 14 Jul New and changed features Windows news · Enforcement phase for Kerberos RC4 protections begins with the July 2026 Windows security update
• Mon 13 Jul New and changed features Windows news · Improving Windows Search Box, with less clutter and more control
• Thu 9 Jul New and changed features Windows news · Evolving Windows vulnerability management to meet the speed of AI-powered discovery
• Thu 9 Jul New and changed features Windows news · Windows Office Hours: July 16, 2026
• Thu 9 Jul New and changed features Product news · LiveKd v5.65, ProcDump v12.01, and ZoomIt v12.11
• Thu 9 Jul New and changed features Windows news · Understanding Windows monthly updates: Servicing explained
• Wed 8 Jul New and changed features Windows news · Windows 365 for Agents: A secured execution environment for AI agents
• Mon 6 Jul New and changed features Windows news · Announcing new builds for July 6 2026
• Mon 6 Jul New and changed features Windows news · Secure Boot Office Hours in July for virtualized and OEM environments
• Mon 6 Jul New and changed features Windows news · Windows settings backup policy is becoming a new default
• Thu 2 Jul New and changed features Windows news · Customize the Start menu with updated policies
• Wed 1 Jul New and changed features Windows news · ESR management completed the transition to Windows Backup for Organizations
• Wed 1 Jul New and changed features Windows news · Windows news you can use: June 2026 recap
• Wed 1 Jul New and changed features Windows news · Windows news you can use: June 2026

June 2026

• Mon 29 Jun New and changed features Windows news · Elder Scrolls Online introduces new in-game event: High Seas of Tamriel
• Fri 26 Jun New and changed features Windows news · Announcing new builds for 26 June 2026, retail launch of new WIP improvements

Sorted from how each source classifies its records: what's-new pages, releases, documentation changes, notices, roadmap items, and network changes. A kind is a reading aid, not Microsoft's own category. Showing the newest 200 of 456.