Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 23565 to the Dev Channel. We are releasing ISOs for this build – they can be downloaded here.
To celebrate the 9-year anniversary of the Windows Insider Program this month, we are releasing two new special desktop backgrounds for you to download and use with Insider Preview builds. Download the light theme version here and download the dark theme version here. Thank you for being Windows Insiders! All Insiders will receive the below 9-year anniversary badge in Feedback Hub!
Changes and Improvements
[Copilot in Windows*]
- Copilot in Windows now shows the new icon on the taskbar.
- We are trying out Windows Spotlight on desktop on by default as the default background for upgrades where Insiders are using one of the inbox default desktop backgrounds. We are trying this experience out with a limited number of Insiders at first.
- Fixed a few issues impacting File Explorer reliability.
- Fixed an underlying issue which could cause File Explorer windows to hang for OneDrive users.
- If there are a lot of images to load in Gallery, it will now show a loading state rather than implying Gallery is empty while it loads.
NOTE: Some fixes noted here in Insider Preview builds from the Dev Channel may make their way into the servicing updates for the released version of Windows 11.
- Some apps under All apps on the Start menu, such as PWA apps installed via Microsoft Edge, may incorrectly be labeled as a system component.
[Copilot in Windows*]
- Some Windows Insiders in the Dev Channel in global markets where Copilot in Windows is available* in preview who are on the Home edition of Windows 11 Insider Preview builds may notice that Copilot in Windows has disappeared from the taskbar. We’re working to resolve this issue in a future flight.
- When first launching or after refreshing Copilot in Windows while using voice access, you’ll need to use “Show grid” commands to click in the “Ask me anything” box for the first time.
You can download the latest Windows Insider SDK at aka.ms/windowsinsidersdk.
SDK NuGet packages are now also flighting at NuGet Gallery | WindowsSDK which include:
- .NET TFM packages for use in .NET apps as described at aka.ms/windowsinsidersdk
- C++ packages for Win32 headers and libs per architecture
- BuildTools package when you just need tools like MakeAppx.exe, MakePri.exe, and SignTool.exe
These NuGet packages provide more granular access to the SDK and better integration in CI/CD pipelines.
SDK flights are now published for both the Canary and Dev Channels, so be sure to choose the right version for your Insider Channel.
Remember to use adaptive code when targeting new APIs to make sure your app runs on all customer machines, particularly when building against the Dev Channel SDK. Feature detection is recommended over OS version checks, as OS version checks are unreliable and will not work as expected in all cases.
About the Dev Channel
REMINDER: The Dev Channel has been rebooted. Windows Insiders who were in the Dev Channel on 25000 series builds have been moved to the new Canary Channel. Going forward, the Dev Channel will receive 23000 series builds. Insiders who were moved to the Canary Channel and want to move back to the Dev Channel can follow these instructions to do a clean installation of Windows 11 and then re-join the Dev Channel to receive 23000 series builds.
The Dev Channel receives builds that represent long lead work from our engineers with features and experiences that may never get released as we try out different concepts and get feedback. It is important to remember that the builds we release to the Dev Channel should not be seen as matched to any specific release of Windows and the features included may change over time, be removed, or replaced in Insider builds or may never be released beyond Windows Insiders to general customers. For more information, please read this blog post about how we plan to use the Dev Channel to incubate new ideas, work on long lead items, and control the states of individual features.
In some cases, features and experiences may go out to the Canary Channel first before going out to the Dev Channel however the Dev Channel will provide better platform stability. As we get closer to shipping, some features and experiences will also make their way to the Beta Channel when they are ready.
The desktop watermark you see at the lower right corner of your desktop is normal for these pre-release builds.
*Availability of Copilot in Windows: Copilot in Windows in preview is being rolled out gradually to Windows Insiders in select global markets. The initial markets for the Copilot in Windows preview include North America and parts of Asia and South America. It is our intention to add additional markets over time.
Important Insider Links
- You can check out our Windows Insider Program documentation here.
- Check out Flight Hub for a complete look at what build is in which Insider channel.
Amanda & Brandon