Too Long; Didn't Read
In Swift Automatic Reference Counting (ARC) is used to manage memory usage in an iOS application.<br>Each time you create a new instance of a class ARC allocates a chunk of memory to store information about it, and automatically frees this memory when that instance is no longer in need.<br>You as a developer don’t need to do anything for that management , except for 3 cases were you need to tell ARC more information about relations between instances to avoid “Retain Cycles”.