if I have saved a CKServerChangeToken in my current CloudKit implementation, is it compatible with CKSyncEngine.State.Serialization that is used in CKSyncEngine?

Customize feature discovery with TipKit

Focused on feature discovery, the TipKit framework makes it easy to display tips in your app. Now you can group tips so features are discovered in the ideal order, make tips reusable with custom tip identifiers, match the look and feel to your app, and sync tips using CloudKit. Learn how you can use the latest advances in TipKit to help people discover everything your app has to offer.

Meet FinanceKit

Learn how FinanceKit lets your financial management apps seamlessly and securely share on-device data from Apple Cash, Apple Card, and more, with user consent and control. Find out how to request one-time and ongoing access to accounts, transactions, and balances — and how to build great experiences for iOS and iPadOS.

Track model changes with SwiftData history

Reveal the history of your model’s changes with SwiftData! Use the history API to understand when data store changes occurred, and learn how to use this information to build features like remote server sync and out-of-process change handing in your app. We’ll also cover how you can build support for the history API into a custom data store.

Port advanced games to Apple platforms

Discover how simple it can be to reach players on Apple platforms worldwide. We’ll show you how to evaluate your Windows executable on Apple silicon, start your game port with code samples, convert your shader code to Metal, and bring your game to Mac, iPhone, and iPad. Explore enhanced Metal tools that understand HLSL shaders to validate, debug, and profile your ported shaders on Metal.