They renamed the course. Search for "Developing iOS 8 Apps with Swift". It's currently the older Xcode/iOS/Swift but it is still worth watching because most of the APIs haven't changed. He's usually really good about updating the course for changes.
"Developing iOS 9 Apps with Swift"
...but stay tuned, Apple is about to release Swift 3.0, so eventually Stanford will be updating their CS193P class.