Shape Detection

Shape detection for Apple Pencil drawing was mentioned as a new feature during the keynote, but I did not see it mentioned in the "What's new in PencilKit" video and it does not seem to work in a test app I created in iOS 14 Beta 1 using PKCanvasView. It does work in the iOS 14 Notes app. Will this be made available in the public library? It would be so great to have!