What is new with swift

10th Anniversary: Swift celebrates its 10th birthday, marking a decade of evolution since its announcement at WWDC 2014.
Open Source and Community: Swift was open-sourced in 2015, and a community-driven evolution process was introduced for the language and standard library.
Swift Package Manager: Introduced in 2016 with Swift 3, facilitating package management and modular code development.
Stable ABI: Swift 5 introduced a stable ABI on Apple platforms, reducing app download sizes and optimizing performance.

New Language Mode: Swift 6 introduces a new language mode that ensures data race safety, expanding Swift's safety guarantees to concurrent programs.
Embedded Swift: A new language subset designed to run on highly constrained systems.
Non-Copyable Types: Introduction of non-copyable types to improve memory management and performance.
Concurrency Improvements: Enhanced data race checking and complete concurrency checking, ensuring safer concurrent programming.
C++ Interoperability: Continued improvements in interoperability with C++, making it easier to integrate Swift with existing C++ codebases.

Swift Assist: New tools and features to improve the developer experience, including predictive completion in Xcode 16.
SwiftUI: Numerous updates to SwiftUI, including custom containers, mesh gradients, and scrolling customizations, making it easier to build user interfaces with less code.

Swift on More Platforms: Swift is now available on more platforms, including a community port to Windows.
Swift in Apple's Software Stack: Used throughout Apple's software stack, from apps and system services to frameworks and firmware.

GitHub Migration: The Swift project will be moving to a new organization on GitHub, managed by the Swift project.
Open Source Collaboration: Ongoing collaboration with the open-source community to bring Swift to more platforms and domains.

For more detailed information, you can watch the session What’s new in Swift starting at 17:03.