In the Beta Channel, you’ll get more polished features that will be deployed in the next major Windows release.This channel is best for technical users and developers and builds in it may be unstable and buggy. The Dev Channel is where new features are introduced for initial testing, regardless of which Windows release they’ll eventually end up in.The Windows Insider program is divided into three channels: The company frequently rolls out public preview builds to members of its Windows Insider Program, allowing them to test out - and even help shape - upcoming features. Windows 11 has been released, but behind the scenes, Microsoft is constantly working to improve the newest version of Windows.