Creating the Core Data Stack with Backwards Compatibility in Swift

This article provides a step-by-step guide for iOS developers to manually create a Core Data stack in Swift while maintaining backwards compatibility with iOS versions earlier than iOS 10 and macOS Sierra. It explains the three essential steps: initializing an NSManagedObjectModel from the .xcdatamodeld file, configuring an NSPersistentStoreCoordinator with the model and a SQLite store, and creating an NSManagedObjectContext. The goal is to obtain an NSManagedObjectContext instance for fetch requests and NSFetchedResultsController usage, bypassing the newer NSPersistentContainer class for older OS support.