This build includes a number of smaller feature updates and UI tweaks.
Microsoft is moving toward converging its various snipping features and tools with this build. Using WIN + Shift + S, users will see a snipping toolbar which will allow a screen snip to go directly to their clipboards. Users also have other options for snipping, including clicking the pen "tail" button to launch snipping; pressing Print Screen to launch it; or pressing the "Screen Snip" button in the Action Center.
Microsoft is also turning Screen Sketch -- currently a feature of Windows Ink Workspace -- into a Microsoft Store app. Screen Sketch allows users to annotate and share screen captures.
Microsoft has renamed "Windows Defender Security Center" to Windows Security. (This is where users can manage Windows Defender Antivirus and Windows Defender Firewall.) Over the "coming months," Microsoft plans to make changes as to how threats and attention items are presented in Windows Security.
Microsoft also is adding a soft blur effect, known as "acrylic" to its Task View, as part of its effort to apply its Fluent design to more elements of the operating system. It also has added with Build 17661, the ability to rotate High Efficiency Image File Format (HEIF) images in File Explorer and edit their metadata.