The WWDC 2025 viewing guide helps you plan the sessions you want to watch, with two big themes: Liquid Glass design and Apple Intelligence. Start with the Platforms State of the Union for a summary of what's new this year. There are over 100 sessions, so don't feel overwhelmed - you've got time to learn. Watch sessions using the Apple Developer app, which supports playback, transcripts, and code copying. Swift 6.2 is here, with updates to ease the pain of adopting Swift Concurrency, including single-threaded default and opt-in to infer main actor. Other essential viewing includes sessions on SwiftUI, UIKit, iPadOS, AppKit, watchOS, and Developer Tools. The Liquid Glass design sessions are a must-watch this year, along with sessions on testing, SwiftData, WidgetKit, and design. The design sessions cover topics like inclusive app design, SF Symbols, and design interactive snippets. Finally, there are platform-specific sessions to help you elevate your design.