Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing updates.

To learn more about Windows update terminology, see types of Windows updates and monthly quality update types. For an overview, see the update history page for Windows 11, version 24H2 and version 25H2. Stay informed! Follow @WindowsUpdate for the latest updates from the Windows Release Health Dashboard.

The following summary outlines key issues addressed by the KB update after you install it. Also, included are available new features. The bold text within the brackets indicates the item or area of the change. If you installed earlier updates, your device downloads and installs only the new updates contained in this package.

This out-of-band update for Windows 11, version 25H2 and 24H2 (KB5078127) is cumulative. It includes updates from previous security and non-security releases, along with an additional fix. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information ...

Microsoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions. Install this update.

To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates.

Highlights This update addresses security issues for your Windows operating system. Improvements This security update includes improvements that were a part of update KB5060829 (released June 26, 2025). The following summary outlines key issues addressed by the KB update after you install it. Also, included are available new features. The bold text within the brackets indicates the item or ...

Microsoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions. Install this update.

Microsoft is investigating whether consumer customers using Home or Pro editions of Windows are affected. This issue is addressed in KB5052094. Before you install this update. Microsoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU).

The October 14, 2025 update for Windows 11, version 25H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the Prerequisites and Restart requirement sections. Summary Security Improvements CVE-2025-55248 - .NET Framework Information ...