This content was released on Dec 4 2017. The official support period is 6-months from this date.
Parsing JSON in Swift 4, with or without custom decoding, is vastly improved using the latest version of Foundation. You'll also learn some new Key Value Observing (KVO) features!
This is a companion discussion topic for the original entry at https://www.kodeco.com/4035-ios-11-screencasts-what-s-new-in-foundation