What was major update on ios 17 sdk

The major updates in the iOS 17 SDK were not explicitly mentioned in the provided context. However, there are several significant updates and new features in iOS 18 SDK that were highlighted:

UIKit Enhancements:
- Improved transitions and animations.
- Updated tab bars and sidebars.
- New document launch experience.
- More integrations between UIKit and SwiftUI.
- Support for new fluid transitions across the system.
- What’s new in UIKit
Device Management:
- New exceptions for enrolling MDM on newly set up devices.
- Requirements for installing proprietary in-house apps using a new team identity.
- Various platform changes including restrictions for iPhone mirroring, FaceTime, and remote control.
- What’s new in device management
Privacy Enhancements:
- Improved transparency and control over access to local network, Bluetooth, and contacts.
- New flow for sharing contacts with more control and transparency.
- What’s new in privacy
StoreKit and In-App Purchase:
- Deprecation of the original API for in-app purchases.
- Recommendation to update to StoreKit 2 for better features and improvements.
- What’s new in StoreKit and In-App Purchase
Apple Intelligence:
- Introduction of Apple Intelligence, a personal intelligence system with generative models.
- New capabilities for helping users take actions with rich awareness of personal context.
- Platforms State of the Union
Gaming Enhancements:
- Unified Metal shaders for easier development across macOS and iOS.
- Introduction of game mode to iOS to reduce background activity and improve input responsiveness.
- Port advanced games to Apple platforms

These updates reflect a broad range of improvements and new features across different aspects of the iOS 18 SDK.