Announcing Windows 10 Insider Preview Build 17123 for Fast

Hello Windows Insiders!

Today, we are releasing Windows 10 Insider Preview Build 17123 (RS4) to Windows Insiders in the Fast ring.

What’s new in Build 17123

Introducing High Efficiency Image File Format (HEIF) in Windows 10

The High Efficiency Image File Format (HEIF) has arrived for Windows 10 and the Photos app! HEIF is an image container that leverages modern codecs like HEVC to improve quality, compression, and capabilities compared to earlier formats like JPEG, GIF, and PNG. In addition to traditional single images, HEIF supports encoding image sequences, image collections, auxiliary images like alpha or depth maps, live images & video, audio, and HDR for greater contrast. We have heard your feedback that these features and the ability to share photos easily with other platforms is important to you. This release we are delivering essential viewing support (You cannot edit HEIF images in this release).

In order to try this out, you need to join the Windows App Preview Program for the Photos app and make sure you are running the March release of the  Photos app (Version 2018.18022.13740.0 or newer). This version of the Photos app has been updated for RS4 to support viewing the primary image inside a HEIF file and to guide the install of dependencies like the HEIF and HEVC media extensions from the Microsoft Store. Once installed, these media extensions enable HEIF viewing in Photos as well as thumbnails and metadata in File Explorer.

Additionally, any application that uses WIC, WinRT Imaging APIs, or the XAML Image control can now add similar support for viewing single HEIF images.

Click here to open Feedback Hub and send us feedback on the HEIF experience with the Photos app and Windows 10.

Windows Mixed Reality

With this build, the Windows Mixed Reality Team would like to let you know about a few known issues as you try out the new Windows Mixed Reality features:

Since the last build, the following bugs should now be fixed:

To give feedback on Windows Mixed Reality, click here to open Feedback Hub.

General changes, improvements, and fixes for PC

Known issues

No downtime for Hustle-As-A-Service,
Dona <3