An image - since deleted - in Microsoft's blog post announcing Windows 10 Insider Preview build 16199 included a new taskbar icon, which led to the discovery of a new 'Control Center' for the OS.
Build 16199 RSS
Microsoft released Windows 10 for PCs build 16199 to the Fast ring today, adding a range of new features to the OS, but there's also a list of fixes, improvements, and known issues.
It's a new week, which means that it's time for a new Windows 10 build in the Fast ring. Build 16199 for PCs includes a number of new features, some of which were announced at Build 2017.