The Update BureauBuild 28020.1738: Windows Insider Canary Channel, March 2026. Canary servicing test requires a restart but adds no features
In short
This Canary update tests the servicing process without adding features or changing the displayed build version. A restart is required.
Does it affect you? Applies to: Devices enrolled in the Windows Insider Program in the Canary Channel.
This is a test build for people in the Windows Insider Program. Features in it can change, be removed, or never reach regular Windows releases.
In detail
- Other The update adds no new features; it tests servicing for Canary builds. A restart is required, and the device build version stays the same.1
Technical details
Data sheet · Security · Downloads · Components Click to collapse or expand
Data sheet
- Released
- 2026-03-13
- Type
- Windows Insider build
| Version | Build | Channel |
|---|---|---|
| — | 28020.1738 | Canary Channel |
Security
No vulnerabilities are listed for this update.
Sources
Updated
Cited passages from Microsoft's official notes (1)
-
1.
This update does not include anything new and is designed to test our servicing pipeline for builds in Canary Channel.
blogs.windows.com
Checked automatically: 8 of 8 checks passed, 1 quoted passage
- Quotes found in the official pages: passed
- Numbers found in the sources: passed
- Vulnerabilities from the dossier only: passed
- Links to allowed domains only: passed
- Every official change covered: passed
- Readable plain text: passed
- Changes confirmed by the file list: passed
- Sources agree: passed
A second AI read the text against the sources: correctness 5/5, clarity 5/5, completeness 5/5. How we work
Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake