Build 28020.2134 is not mentioned in the provided documentation. The latest referenced builds for the Canary 28000 series / Experimental (26H1) channel are 28020.1873, 28020.1921, and 28020.2075. These builds are available via Windows Update for devices enrolled in the Canary 28000 series channel (transitioning to Experimental (26H1)).
Key points from the referenced builds:
- These Insider builds can be unstable and may ship with limited documentation.
- They are early-development builds and are not tied to a specific future Windows release; features may change or be removed.
- Many features are rolled out gradually using Controlled Feature Rollout technology, so availability can vary between devices.
- A desktop watermark in the lower-right corner is expected for Insider pre-release builds.
- For Canary 28000 series / Experimental (26H1) devices, new features can be obtained sooner by enabling the toggle for getting the latest updates under Settings > Windows Update.
- Transition of Canary 28000 series devices to the Experimental (26H1) channel is in progress, as described in the release notes and the Windows Insider Blog.
For detailed changes, refer to the specific build notes (for example, Task Manager and Feedback Hub improvements in build 28020.1921, and input/font improvements in build 28020.2075).
References:
- Windows 11 Insider Experimental (26H1) Preview Build 28020.1873
- Windows 11 Insider Experimental (26H1) Preview Build 28020.1921
- Windows 11 Insider Experimental (26H1) Preview Build 28020.2075
- Windows 11 Insider Experimental (Future Platforms) Preview Build 29576.1000
- Windows 11 Insider Experimental (Future Platforms) Preview Build 29585.1000
- Is it possible to Left the Insider Program and Install Stable 25H2? - Microsoft Q&A
- My system has been on RP channel why is it downloading a Beta release? - Microsoft Q&A
- Release Preview channel seems to be missing - Microsoft Q&A
- Any Updates from windows 11 release preview 26220.6690 - Microsoft Q&A
- Windows 11 Setup Mode Issue and Corruption Recovery - Microsoft Q&A