Today at 10:00 AM PT Microsoft provided a new Redstone 4 Evaluation build to insiders on the Fast ring, this one is Build 17123.1
*this is a kind-of exciting new item: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.
Official announcement & what's new:https://blogs.windows.com/windowsexperi ... GklCHYi.97