Announcing Windows 10 Insider Preview Build 21296

UPDATE 1/25/21: We are starting to roll out Cumulative Update Build 21296.1010 (KB4602812). This update does not include anything new and is designed to test our servicing pipeline.


Today we are releasing Windows 10 Insider Preview Build 21296 (RS_PRERELEASE) to Windows Insiders in the Dev Channel. This build is being offered to ALL Insiders in the Dev Channel. All Insiders in the Dev Channel will now receive the same build going forward.

IMPORTANT Build Expiration Notice

Older builds in the Dev Channel will be expiring on January 31, 2021. If you are on Build 20262 or earlier, please be sure to update to the newest build provided in the Dev Channel to avoid getting into a bad state.

Important Insider Links

You can check out our Windows Insider Program documentation here, including a list of all the new features and updates released in builds so far. Are you not seeing any of the features listed for this build? Check your Windows Insider Settings to make sure you’re in the Dev Channel. Submit feedback here to let us know if things weren’t working the way you expected.

If you want a complete look at what build is in which Insider channel, head over to Flight Hub. Please note, there will be a slight delay between when a build is flighted and when Flight Hub is updated.

Before you update your machine, visit the Windows Insider Blog today to view full details on new features, general changes, improvements, known issues and much more!