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Release date: 22 May 2026
As a reminder, these release notes apply to those who are in the Experimental (26H1) channel, formerly known as the Canary 28000 series Channel. As we begin the transition to the updated Windows Insider Program, all new build release notes will be labeled under the new channel names, even though Insiders in the Canary 28000 series Channel may not yet find themselves having transitioned to Experimental (26H1). See the Windows Insider Blog for more details.
Changes and improvements gradually being rolled out
[General]
- Improved reliability of explorer.exe when closing the input switcher, and when switching between multiple desktops.
[Storage]
- We’ve updated the dialog when creating a Dev Drive to now support specifying the size in GB instead of only MB. This has also been added when changing the size of volumes under Settings > System > Storage.
[Fonts]
- The Times New Roman font family is updated to improve the rendering of combining diacritical marks across Greek and Cyrillic scripts. This update provides more accurate and visually consistent text by addressing mark positioning issues. As a result, readability is improved, rendering inconsistencies are reduced, and support for global language users working with Greek and Cyrillic text is strengthened.
Known Issues
[Reset PC]
- [Fixed] Resetting your PC may get stuck when using "Reset this PC." To complete the reset successfully, choose the cloud download option (Cloud PBR) instead of local.
Reminder for Windows Insiders in the Experimental (26H1) channel
These builds can be unstable and may be released with limited documentation.
Many features in the Experimental (26H1) channel are rolled out using Controlled Feature Rollout technology, starting with a subset of Insiders and ramping up over time as we monitor feedback to see how they land before pushing them out to everyone in this channel.
The desktop watermark shown at the lower right corner of the desktop is normal for Windows Insider pre-release builds.
Some features in active development we preview with Windows Insiders may not be fully localized and localization will happen over time as features are finalized. As you see issues with localization in your language, please report those issues to us via Feedback Hub.