18.3
What's New
iOS 18.3 introduces Apple Intelligence as an opt-in feature during device setup, supported by Xcode 16.2 SDK. This release includes critical fixes for HealthKit authorization persistence, Writing Tools API compatibility with custom first responders, and Genmoji generation reliability. Developers should update to Xcode 16.2 and test Apple Intelligence feature integration and HealthKit workflows.
Highlights
- Apple Intelligence enabled by default during iOS 18.3 onboarding with user toggle control
- Xcode 16.2 SDK bundled support for iOS and iPadOS 18.3 development
- Writing Tools API inline experience now works with non-UIView first responders
- HealthKit authorization persistence fixed to prevent repeated user prompts
- Genmoji generation improved with personalized avatar selection workflow