Apple says that it's also now easier to check the trade-in values of your devices when using the Apple Store app.
You'll see trade-in options when purchasing a new iPhone, iPad, Mac, or Apple Watch, and Apple will give you a list of your current devices where you're signed in with your Apple ID and their trade-in value.
You can tap one, go through Apple's status checklist, and then finish the trade-in process right when checking out.
The splash screen when starting the app after installing the new update also says that returns have been streamlined with options to track the progress of your order, initiate a return, or print a return label directly from the Apple Store app.
The Apple Store app can be downloaded from the App Store for free. [Direct Link]