New iOS 18 UIView animation methods not available yet?

On the WWDC24 session video 'Enhance your UI animations and transitions', Appls shows these new animation methods for UIKIT:

switch gesture.state {
 case .changed: 
   UIView. animate(.interactiveSpring) {
       bead.center = gesture.translation
   }
 case .ended:
   UIView. animate(spring) {
      bead.center = endOfBracelet
   ｝
 ｝
 
As of iOS 18 Beta 2, I get an error for `UIView. animate(.interactiveSpring)`

These new methods are not available yet?