Windows 11 is getting true HDR desktop wallpaper support and better screen casting

Windows 11 preview build 23516 is now rolling out.

It's Wednesday, which is often the day of choice for Microsoft when it comes to releasing new Windows 11 preview builds. Today's build is 23516 and includes a whole bunch of new features for Insiders in the Dev Channel to download and begin testing.

Top billing for today's build is support for true HDR desktop wallpapers. Previously, Windows did not support setting a HDR image as your desktop wallpaper, even on a device with a HDR compliant display. But now, starting with this build, users can set .JXR files with HDR and have it be displayed correctly on the desktop.

If you're using a HDR display, you will see high dynamic range color on the desktop. If you're not using a HDR display, the image will simply display in SDR instead, handy for users with multiple different kinds of monitor attached to their PC.

Also new in today's build is an updated screen casting experience, which is now better at educating the user about the benefits of casting a Windows PC to an external screen. Additionally, the screen casting UI will provide an inline setup experience for enabling your PC as a casting device.

Here's the full changelog for today's Dev Channel build.

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Zac Bowden is a Senior Editor at Windows Central. Bringing you exclusive coverage into the world of Windows on PCs, tablets, phones, and more. Also an avid collector of rare Microsoft prototype devices! Keep in touch on Twitter and Threads