Enabling core data lightweight migration in Swift 3

Question

According to the articles I have read the correct way to enable core data light weight migrations is by passing options to addPersistentStoreWithType:

Answer 1

With the new NSPersistentContainer there are many sensible defaults. You don't have to set the properties, which most of the answers give.

Simply create the container and load.

let container = NSPersistentContainer(name: dataModelName)
container.loadPersistentStores { storeDescription, error in
    // You may verify the default storeDescription has the right default for light migration
}