Introduction
Windows 11 25H2 is now available to the public, but Microsoft isn't resting on its laurels. The company is continuously refining the operating system through its Windows Insider Program, where enthusiasts and IT professionals can test upcoming features before they reach general availability. Recent changes to the program's channel structure give testers more control over which features they try. In this article, we'll break down the new insider channels and highlight the latest preview builds released in the past six months.
Understanding the New Insider Channel Structure
Microsoft has revamped its Insider Program to allow participants to select specific features for testing. The old channel names have been updated as follows:
- Beta Channel → Beta
- Dev Channel → Experimental
- Canary Channel (28000 series) → Experimental (26H1)
- Canary Channel (29500 series) → Experimental (Future Platforms)
- Release Preview Channel (Windows 11 24H2/25H2) → Release Preview 24H2/25H2
- Release Preview Channel (Windows 11 26H1) → Release Preview 26H1
This transition began with the Dev Channel. For more details, refer to Microsoft's official announcement.
Recent Windows 11 Insider Preview Builds
Below are the two most recent preview builds announced by Microsoft. Each entry includes the release date, channel, key improvements, and known issues.
Windows 11 Insider Preview Build 26220.8474
Release date: May 15, 2026
Channel: Beta
This build brings several minor reliability enhancements. Most notably, it improves the stability of Simple Service Discovery Protocol (SSDP) notifications, helping prevent the service from becoming unresponsive.
Known issue: The "Reset this PC" feature may cause the system to freeze. If you encounter this, use the cloud download option (Cloud PBR) instead of the local recovery option.
For official details, visit Microsoft's release notes.
Windows 11 Insider Preview Build 26300.8493
Release date: May 15, 2026
Channel: Experimental (formerly Dev)
This build rolls out several new features gradually. A highlight is the ability to reposition the taskbar on your screen. Go to Settings → Personalization → Taskbar → Taskbar behaviors and choose from bottom, top, left, or right alignment. In alternate positions, tooltips, flyouts, and animations still originate from the taskbar, and customization options like "small taskbar" and "never combine taskbar buttons" remain available.
Note: Some features may be rolled out slowly to gather feedback.
How to Join and Participate
If you're interested in testing these preview builds, enroll your device in the Windows Insider Program via Settings → Windows Update → Windows Insider Program. Choose a channel based on your risk tolerance: Beta for stable testers, Experimental for adventurous users, and Release Preview for pre-release final builds.
Always backup your data before installing preview builds, as they may contain bugs. Provide feedback through the Feedback Hub to help shape future Windows releases.
For a comprehensive guide on deploying preview updates, see our article How to Preview and Deploy Windows 10 and 11 Updates.