Announcing new builds for 25 September 2026

Hello Windows Insiders,

Today, we’re releasing new Windows 11 Insider Preview builds to the Beta and Experimental channels.

New builds this week

Select your channel below to view its release notes:

• Beta: Build 26220.9568
• Experimental: Build 26340.9577

For those on other specific Windows build versions, here are today’s new builds and release notes:

• Beta (26H1): Build 28020.3112
• Experimental (26H1): Build 28120.3122
• Experimental (Future Platforms): We do not have a release for Experimental (Future Platforms) today.

Notable new features:

[Start menu – Phone companion]

Release channel: Experimental

• See more of your latest activities at a glance: Phone companion for the Start menu now shows more of your recent activity, with a scrollable side pane so you can view even more without leaving the Start menu.

• Windows Insiders will now see Energy Recommendations directly in Quick Settings, making it easier to discover and take actions that can help reduce energy consumption and improve device sustainability.

Thanks,

Stephen and the Windows Insider Program team