Yesterday, Microsoft released Windows 10 build 19603 to Insiders in the Fast ring, and while the most notable feature was File Explorer integration for the Windows Subsystem for Linux, it seems there are a few more interesting things to be found. Twitter user Albacore shared a look at some of the features that are available in the latest build, but currently hidden.
One of those features is something that many users have requested over the years - a new UI for the media playback controls that show up when the user presses volume keys, for example. The UI that's currently in use in Windows 10 is identical to what first debuted in Windows 8, but the new variant, hidden in a feature ID, falls much more in line with Microsoft's current design language.
The other currently hidden feature is a 'What's New' section in the Settings app, which highlights some of the new features in Windows 10. Once this feature is enabled, the 'What's New' page will show up in the Update & Security section of the Settings app, and offer tips such as how to bring up the emoji keyboard, or sync your files to OneDrive.
To make these features visible, you'll need to enable the respective feature IDs using a tool like mach2 or ViVe. We recommend exercising caution when messing with feature IDs, since some or most of them are likely to cause instability, and it may be better to wait for Microsoft to enable them when they're ready for public use.