Windows 11 build 27691

10.0.27691
Build of Selenium
Screenshot
OS familyWindows 11 (NT 10.0)
Version number10.0
Build number27691
Expiration date
Timebomb2025-09-15

Windows 11 build 27691 is the earliest known build of Selenium, the 25H2 development semester of Windows as a service. The build number was referenced in the official release announcement of build 27695 as the first build to include the updated timebomb for public Insider Preview builds:[1]

Insider Preview Build Expiration: The expiration date for Insider Preview builds flighted to the Canary Channel has been updated to 9/15/2025 starting with Build 27691. Please make sure you are updated to the latest build in the Canary Channel.

References[edit | edit source]