The improved Swift Pair function does not need to be completed. Further, the prompt now comes with a Dismiss button. The notification now also shows what kind of accessory is in range, whether it's a mouse, a keyboard or something else.
That said, Swift Pair only works with supported devices, which include the Surface Ergonomic Keyboard, Precision Mouse, Mobile Mouse , Arc Mouse and Headphones, as well as the Microsoft Modern Mobile Mouse and Arc Mouse.
Aside from releasing a simpler and faster version of the Swift Pair, Microsoft has started rolling out all the snip & sketch to all Insiders. The new version makes "single window" the default mode, closing previous snips when you click so it does not flood your screen with a bunch of windows. It'll also allow you to zoom in on screenshots.