https://wccftech.com/new-month-brings-new-windows-10-build-20161/

Microsoft has released a fresh new Windows 10 Insider Preview Build to those in the Dev Channel (previously known as the Fast ring). This is one big release coming after months of the development team focusing on bug fixes and performance improvements. However, not all the new features will be visible to everyone.

Today's Windows 10 Build 20161 is from the Active Development Branch and only available to those signed up with the Dev Channel. The Windows maker said that while today's build is full of "cool new features," many of them will only be rolling out to a subset of Insiders to help the company "quickly identify issues that may impact performance and reliability."