Announcing Windows 11 Insider Preview Build 25915

Hi all, last Wednesday Microsoft released Windows 11 Insider Preview Build 25915 to the Canary Channel.

Another upgrade containing stuff the 1st showed up in the Dev Channel

All upgrade went fast & smooth here, Happy Upgrading!

August 2023 Bug Bash Coming Soon: Starting on August 2nd, we’ll be having our next bug bash! The bug bash will span the latest features available in preview builds across the Canary, Dev, and Beta Channels. Stay tuned for more details in next week’s flight blog posts.

What’s new in Build 25915

New features from the Dev Channel

This build includes new features from the Dev Channel, such as modernized File Explorer HomeAddress Bar, and Details Panepasswordless improvements (passkey), never combined mode on the taskbar, and more.

The New Outlook for Windows is now an inbox app

Starting with this build, the new Outlook for Windows Preview is now an inbox app. With the new Outlook for Windows, you can connect work and personal emails, calendars, and contacts in one secure place. Learn about the new Outlook for Windows here and the most recent set of updates for Insiders here. You can click here to learn more about the future of Mail and Calendar in Windows.

The new Outlook for Windows.
The new Outlook for Windows.

Changes and Improvements


  • We have improved refresh rate logic to allow different refresh rates on different monitors, depending on the refresh rate for each monitor and content shown on the screen. This will help most with refresh rate-dependent multitasking, like playing a game and watching a video at the same time.
  • While a Dynamic Refresh Rate (DRR) is selected and Battery saver is also enabled, Windows will remain at the lower refresh rate and not switch to the higher rate until after Battery saver is disabled.

Fixes for known issues

  • The issue that resulted in some Windows Insiders in the Canary Channel on ASUS devices or PCs with ASUS motherboards has been resolved and these Insiders should receive this flight.
  • Ethernet-connected devices will no longer lose network connectivity after updating to this build.

source: Windows Blogs

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