18.5
What's New
iOS 18.5 SDK bundled with Xcode 16.4 delivers critical bug fixes and performance improvements across broadcast extensions, Writing Tools, StoreKit2, and enterprise app compatibility. Key fixes address Vision Pro app launch failures, Writing Tools attribute preservation, and enterprise app installation issues. Broadcast extensions gain higher memory limits to support higher-quality content capture and streaming when system resources permit.
Highlights
- Broadcast extensions now support higher per-process memory limits for improved streaming quality
- Writing Tools coordinator fixes preserve NSAttributedString attributes with plainText result options
- Enterprise app launch issues resolved; reinstall required for affected devices
- StoreKit2 introductory offer eligibility checking fixed for unsigned-in users
- Vision Pro app black screen issue fixed in iOS 18.4 beta 2 and newer
- hvf C API availability checking now properly enabled