Document Revision History
This table describes the changes to TopSongs.
Upgrade to iOS 10.2 SDK, replaced deprecated APIs, updated the NSAppTransportSecurity key value server domain.
Upgraded to the iOS 9.0 SDK, now uses NSURLSession, updated to adopt current best practices for Objective-C (including use of properties, autosynthesis, and literals).
Upgraded to support iOS 6.0 SDK, uses Automatic Referencing Counting (ARC), uses NSCurrentLocaleDidChangeNotification to detect locale changes for dates, minor code reformatting.
Upgraded to iOS 5.0, fixed an autorelease pool management bug.
Upgraded project to build with the iOS 4 SDK.
Expanded ReadMe and added localization for SongsViewController.