Swift

Swift macros
- Either using the @ or # signs
- Built with swift, using language introspection
- Examples
  - #URL check that the url is vaid at compile time
  - @AddAsync add an async version of a completion handler function
- Xcode can peek into the macro expansion
- Share macros with swift packages
- Macros for xcode previews
C++ interop, just like existing c and objc interop
- Share classes and functions, bridge both ways
- Already in use helping to transition the swift compiler from c++ to swift itself
SwiftUI
- Animations
  - Now default to a spring based motion
  - Respond to velocity of gesture that starts it
  - KeyFrames
- Data flow
  - @Observable macro on a class publishes all public properties
SwiftData
- Built on top of coredata’s persistence layer
- Uses macros to define it in swift
- Just add @Model macro to a class
- More macros to set attribute information, such as unique
- Supports codable for enums and structs
- @Query wrapper
- .modelContainer() view property

Framework updates

Game mode
- Metal shader converter
Camera
- Zero shutter lag
- Standarized HDR photo format
- ScreenCaptureKit
- Continuity camera in tvOS for conferencing or games
Watch
- TabView
- .containerBackground(.blue.gradient)

Privacy summary report for third party sdks
Signature checking for third party sdks
Communication safety features
- Senstitive content analyzier, on device
- Sensitive content warning, blurring
New store kit in app purchase views, using swiftui

Xcode has a simulator with default room scenes
Bring your mac screen to the vision to develop apps inside the space where they debug
Reality composer app, for preapre 3d assets