Microsoft begins the rollout of Windows 10 build 16170 to the Fast ring. This is the first test preview the company is releasing as part of the Redstone 3 update. If you’re still wondering, the “Redstone 3” is the current codename for the next major update of Windows 10 that comes after the “Creators Update”, and it’ll release sometime in summer 2017. 

Windows 10 build 16170, according to the company, doesn’t include new features, because the team is only making changes to OneCore to start building new features and improvements into the OS.

Although, it’s still unclear what new features the next version of Windows 10 will bring to devices. It’s been rumored that Microsoft will focus to improve the design language with Project Neon, and it’ll set new rules to streamline and make more beautiful the design of apps.

You’ll also see more animations and blur, similar to the Aero Glass interface used by Windows Vista and Windows 7.

Alongside the interface changes, Project Neon will also bring improvements to HoloLens and 3D experience.

Microsoft is listing the complete set of fixes and known issues for build 16170 at the Windows Blog.

Windows 10 build 16170 for PC is available immediately through the Fast ring. It’ll download and install automatically on your device, but you can always force the update from Settings > Update & security > Windows Update and clicking the Check for updates button.