Releasing Windows 11, version 26H2 to the Release Preview Channel

Hello Windows Insiders!

Today, we are making this year’s annual feature update, Windows 11, version 26H2 (Build 26300.9278),  available in the Release Preview Channel for customers to preview ahead of general availability later this calendar year.

Windows 11, version 26H2 will be delivered as an enablement package (eKB). This means that Windows 11, versions 24H2¹, 25H2, and 26H2 use a shared servicing branch. It also means that they share the same new features and enhancements delivered through our continuous innovation efforts. As a result, many of the features and improvements available in Windows 11, version 26H2 might already be familiar, as they have been gradually introduced through monthly updates.

For commercial customers, Windows 11, version 26H2 enables several experiences that were introduced in earlier releases but not previously enabled by default for commercial devices. This includes Windows settings backup, app-specific actions from the taskbar, and some File Explorer enhancements. For guidance on how to prepare for Windows 11, version 26H2 in your organization, see Get ready for Windows 11, version 26H2.

Windows Insiders in the Release Preview Channel can install Windows 11, version 26H2 via our “seeker” experience in Windows Update. This means if you are an Insider currently in the Release Preview Channel on a PC that meets the Windows 11 hardware requirements, you can go to Settings and Windows Update and choose to download and install Windows 11, version 26H2. Once you update your PC to Windows 11, version 26H2, you will continue to automatically receive new servicing updates through Windows Update (the typical monthly update process). For instructions on how to join the Windows Insider Program and enroll your PC in the Release Preview Channel, click here.

If you are a commercial² customer enrolled in the Windows Insider Program for Business, you can deploy and begin validating Windows 11, version 26H2 on PCs in your organization using Windows Update client policies and Windows Server Update Services (WSUS). Azure Marketplace will be available later today. Should any issues arise, IT admins in organizations deploying Release Preview updates can request Microsoft Support.

And finally, ISOs will be available for download for Windows 11, version 26H2 via the Windows Insider ISO download page in the near term.

Thanks,
Windows Insider Program Team

¹Windows 11, version 24H2 Home and Pro editions will reach end of updates on October 13, 2026. Enterprise and Education editions remain supported until October 12, 2027.

²We consider a device a commercial device if it is not running the Windows 11 Home edition AND is being managed by an IT administrator (whether via Microsoft Intune or other management solution), or has a volume license key or commercial ID, or is joined to a domain.