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Microsoft Rolls Out Windows 10 RS5 Build 17623 for Skip Ahead

Microsoft today rolled out Windows 10 Redstone 5 Preview Build 17623 to Insiders in the Skip Ahead ring. Here’s a look at what’s new.

In addition to rolling out preview Build 17123 to Insiders in the Fast ring, today Microsoft announced the release of Windows 10 Redstone 5 Build 17623 for Insiders in the Skip Ahead ring. It includes some of the same new features that were added to the Spring Creators Update like the HEIF image format, but also some new features of its own. Here is a look at what’s new and what you can expect.

Windows 10 Redstone 5 Build 17623

The High Efficiency Image File Format (HEIF) is included with both RS4 and RS5 builds. According to the post, “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.” For either version, you will need the latest version of the Photos app to test this out.

Safe Remove for External GPUs is a new experience for external GPUs connected via Thunderbolt 3. It will let you know when applications stop using it so it can be safely removed without any data loss.

Privacy and WDAG Improvements are in this build just like have been added to Redstone 4 over the past few weeks. This will allow you to manage privacy settings during the setup process, namely for input settings like Inking &Typing and Find My Device features. The same performance improvements to WADG that were added to Spring Creators Update are in this build, too. This includes the new Download to host feature.

In addition to the changes above, here is a list of other improvements and fixes in this latest build:

  • For Windows Insiders in the Skip Ahead ring, we will begin testing a change where links clicked on within the Windows Mail app will open in Microsoft Edge, which provides the best, most secure and consistent experience on Windows 10 and across your devices. With built-in features for reading, note-taking, Cortana integration, and easy access to services such as SharePoint and OneDrive, Microsoft Edge enables you to be more productive, organized and creative without sacrificing your battery life or security. As always, we look forward to feedback from our WIP community.
  • We fixed an issue where the Microsoft Store may be completely broken or disappeared altogether after upgrading to this build.
  • We fixed two issues impacting the usability of Windows Mixed Reality on the previous build (Windows Mixed Reality running at a very low frame rate (8-10fps), and a potential crash at startup that could cause Windows Mixed Reality to not work).
  • We fixed an issue resulting in not being able to interact with title bars using touch when Sets was enabled.
  • We fixed an issue resulting in the touch keyboard crashing when focus was moved to certain password fields.
  • We’ve improved the performance of Bluetooth mice when the system is under load.
  • We fixed an issue from recent flights causing precision touchpads to periodically need a few tries to be able to move the mouse.
  • We fixed an issue resulting in the Amharic keyboard not working in Win32 apps.
  • We fixed an issue where EFI and Recovery partitions were unexpectedly listed in Defragment and Optimize Drives.
  • We fixed an issue optimizing drives in Defragment and Optimize Drives didn’t work in the last few flights.
  • We fixed an issue resulting in a permanently black window if you dragged a tab out of a Microsoft Edge window, pulled it up to the top edge of the screen, and moved it back down and released it.
  • We’ve updated the Cortana section in Settings to now be called “Cortana & Search”.
  • We fixed an issue where you couldn’t use touch to interact with the Timeline scrollbar.
  • We fixed an issue where a failed app update could result in that app becoming unpinned from the taskbar.
  • We fixed an issue where if focus was set inside Action Center pressing Esc wouldn’t close the Action Center window.
  • We fixed an issue that could result in ShellExperienceHost periodically waking the device from hibernate if active live tiles were pinned to Start

As always, there are known issues and other changes for this build. Make sure to read Microsoft’s post to get a full list of all new features, known issues, and developer notes.

Are you an Insider in the Skip Ahead branch or just focused on getting the Spring Creators Update version 1803 settled first? Let us know your thoughts in the comment section below or hop in our Windows 10 Forums for more discussions and troubleshooting help.


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