Reality Composer Pro 3 introduces a node-based visual scripting system called Script Graph that lets developers and designers build interactive RealityKit experiences — including full games — without writing any code. Features include drag gesture events, physics integration, prototyped subgraphs, custom events, and live preview directly on Vision Pro.
• Dramatically lowers the barrier for prototyping spatial interactions: designers can wire up drag physics, custom events, and material parameter changes entirely in a visual node graph without Swift code
• Prototyped Subgraphs enable reusable logic modules shared across multiple Script Graphs, accelerating iteration and keeping complex scenes maintainable
• Live Preview mode streams the running simulation directly to a connected Vision Pro so you can feel real hand interactions and tune parameters like dragSpeed in real time without rebuilding
Liquid Glass is Apple's new material and visual design language introduced in iOS 27, bringing translucent, refractive glass-like surfaces to system and custom UI elements. It replaces the frosted vibrancy aesthetic with a more dynamic, depth-aware material that responds to content beneath it.
iOS 27 brings a sweeping set of SwiftUI enhancements including Liquid Glass design adoption, new toolbar visibility and overflow APIs, document architecture improvements with Observable, and resizable iPhone app support — all designed to modernize app UIs with minimal code changes.
Xcode 27 introduces a fully customizable toolbar and theme system, untitled scratch projects, coding agent integration directly in the editor, and the new Device Hub for evaluating apps across simulators and physical devices side-by-side.
In-depth guide
RealityKit & USDKit in iOS 27 →PaperKit is Apple's full-featured canvas framework — previously internal-only — now publicly available in iOS/macOS/visionOS 27. It powers the drawing and markup experience in Notes, Preview, and Freeform, giving developers access to a complete pencil, shapes, images, and text canvas with a rich data model.