Announcing Windows 11 Insider Preview Build 26100 (Canary and Dev Channels)

Hello Windows Insiders,

Today we are releasing Windows 11 Insider Preview Build 26100 to the Canary and Dev Channels.

The Canary and Dev Channels receiving the same builds is only temporaryDuring the times in which the Canary and Dev Channels are on the same builds (e.g. Build 26100), the window is open for Insiders in the Canary Channel to switch to the Dev Channel. In the near future, the Canary Channel will jump to higher build numbers and the window will be closed so make your choice on which channel to be in soon!

NOTE: Some features may begin rolling out to the Canary Channel first before the Dev Channel even if the two channels have the same build.

What’s new in Build 26100

Changes and Improvements


For developers

You can download the latest Windows Insider SDK at

SDK NuGet packages are now also flighting at NuGet Gallery | WindowsSDK which include:

These NuGet packages provide more granular access to the SDK and better integration in CI/CD pipelines.

SDK flights are now published for both the Canary and Dev Channels, so be sure to choose the right version for your Insider Channel.

Remember to use adaptive code when targeting new APIs to make sure your app runs on all customer machines, particularly when building against the Dev Channel SDK. Feature detection is recommended over OS version checks, as OS version checks are unreliable and will not work as expected in all cases.

Reminders for Windows Insiders

Before you update your machine, visit the Announcing Windows 11 Insider Preview Build 26100 (Canary and Dev Channels) | Windows Insider Blog today to view full details on new features, general changes, improvements, known issues and much more!