What was announced at wwdc this year, most importantly for ios and what what astandard dev who does rest apis benifit from in the announcements

At WWDC 2024, several significant announcements were made, particularly for iOS and developers working with REST APIs:

Apple Intelligence: A new personal intelligence system that integrates powerful generative models into iOS, iPadOS, and macOS. This system enhances capabilities for understanding and generating language and images, helping users take actions with rich personal context awareness. It's deeply integrated into system features and apps, with privacy built from the ground up.
New APIs: iOS has become more customizable with new controls that allow users to engage with apps more easily. The new controls API lets developers create controls that can be added to the control center or assigned to the action button on the iPhone 15 Pro.
RealityKit 4: This update aligns APIs and tools across macOS, iOS, and iPadOS, simplifying the development of spatial apps and enabling the creation of 3D models with various styles.

Data Handling Improvements: New features make working with data easier, particularly for tracking local changes that need to be synced to a remote web service. This is beneficial for developers working with REST APIs as it simplifies data synchronization and change tracking.
Swift and SwiftUI Enhancements: Swift continues to evolve, with new capabilities for creating language and images in apps. SwiftUI has gained customizations for fine-tuning app appearance, which can be useful for developers looking to create more engaging user interfaces.

For more detailed insights, you can explore the Platforms State of the Union session, which covers these topics extensively.