WWDC Notes

The TL;DW for Apple's WWDC videos.

What’s New




Lists in UICollectionView
Meet WidgetKit
Stacks, Grids, and Outlines in SwiftUI
Build SwiftUI views for widgets
App essentials in SwiftUI
Data Essentials in SwiftUI
What's new in SwiftUI
Advances in diffable data sources
Enable encrypted DNS
Build with iOS pickers, menus and actions
The Push Notifications primer
Advances in UICollectionView
Explore the Action & Vision app
Boost performance and security with modern networking
Introduction to SwiftUI
Build scalable enterprise app suites
Structure your app for SwiftUI previews
Formatters: Make data human-friendly
Explore logging in Swift
Swift packages: Resources and localization
Get the most out of Sign in with Apple
Explore app clips
What's new in location
What's new in Wallet and Apple Pay


Design for location privacy
Add configuration and intelligence to your widgets
Design with iOS pickers, menus and actions
Design for iPad

Developer Tools

Why is my app getting killed?
Explore Packages and Projects with Xcode Playgrounds
Distribute binary frameworks as Swift packages
XCTSkip your tests
Embrace Swift type inference
Safely manage pointers in Swift
What's new in Swift
Visually edit SwiftUI views
Explore numerical computing in Swift
Get your test results faster
Become a Simulator expert
Unsafe Swift
Add custom views and modifiers to the Xcode Library
Triage test failures with XCTIssue


Platforms State of the Union

Graphics & Games

Explore ARKit 4


App Store & Distribution

In-App Purchases and Using Server-to-Server Notifications


Introducing Desktop-class Browsing on iPad
Introducing SwiftUI: Building Your First App
Introducing iPad Apps for Mac
Introducing SiriKit Media Intents
What's New in Machine Learning
Introducing Multiple Windows on iPad
Introducing Parameters for Shortcuts
Implementing Dark Mode on iOS
Advances in Collection View Layout
SwiftUI Essentials
SwiftUI on watchOS
Advances in UI Data Sources
Introducing PencilKit
Understanding Images in Vision Framework
Modernizing Your UI for iOS 13
Data Flow Through SwiftUI
Integrating SwiftUI
Advances in Natural Language Framework
Mastering Xcode Previews
Text Recognition in Vision Framework
Taking iPad Apps for Mac to the Next Level
What’s New in MapKit and MapKit JS
Building Custom Views with SwiftUI
Accessibility in SwiftUI
SwiftUI On All Devices
Integrating with Siri Event Suggestions
Introducing the Indoor Maps Program
Window Management in Your Multitasking App
What’s New in ClassKit
Creating an Accessible Reading Experience
Making Apps More Accessible With Custom Actions
Advances in CarPlay Systems
Writing Great Accessibility Labels
Advances in Speech Recognition
Accessibility Inspector
Targeting Content with Multiple Windows
Embedding and Sharing Visually Rich Links
What’s New in Managing Apple Devices
App Distribution – From Ad-hoc to Enterprise
Creating Great Localized Experiences with Xcode 11
Create ML for Object Detection and Sound Classification
Drawing Classification and One-Shot Object Detection in Turi Create
Training Object Detection Models in Create ML
Training Sound Classification Models in Create ML
Building Activity Classification Models in Create ML
Training Recommendation Models in Create ML
Training Text Classifiers in Create ML
Introducing the Create ML App
Auditing Web Content with Web Inspector
What's New in Safari
What's New in Authentication
What's New for Web Developers
Core ML 3 Framework
What's New in Core Location
Introducing Sign In with Apple
Cryptography and Your Apps
What's New in Apple File Systems
Advances in Networking, Part 1
Advances in Networking, Part 2
Core NFC Enhancements
What's New in Universal Links
Introducing Accelerate for Swift
What’s New in File Management and Quick Look
What's New in Safari Extensions
Combine in Practice
Introducing Combine
Advances in Foundation


Introducing SF Symbols
Great Developer Habits
Visual Design and Accessibility
Introducing Core Haptics
Designing Award Winning Apps and Games
Designing Great ML Experiences
Building Great Shortcuts
Designing Great Shortcuts
What's New in iOS Design
Designing iPad Apps for Mac
Designing Audio-Haptic Experiences

Developer Tools

What's New in App Store Connect
What's New in Xcode 11
Getting Started with Xcode
Adopting Swift Packages in Xcode
Creating Swift Packages
Getting Started with Instruments
Testing in Xcode
Modern Swift API Design
Binary Frameworks in Swift
Improving Battery Life and Performance
Optimizing Storage in Your App
Designing for Adverse Network and Temperature Conditions
Optimizing App Launch
LLDB: Beyond "po"
All About Notarization
Advances in App Background Execution


Platforms State of the Union

Graphics & Games

Debugging in Xcode 11
Getting the Most Out of Simulator
Introducing RealityKit and Reality Composer
Introducing ARKit 3
Building Apps with RealityKit
Bringing People into AR
Building Collaborative AR Experiences
Game Center Player Identifiers


Introducing Multi-Camera Capture for iOS
Introducing Low-Latency HLS
HLS Authoring for AirPlay 2 Video
AUv3 Extensions User Presets



Creating Apps for a Global Audience
What's New in Cocoa Touch
Introduction to Siri Shortcuts
Building for Voice with Siri Shortcuts
Siri Shortcuts on the Siri Watch Face
High Performance Auto Layout
TextKit Best Practices
A Tour of UICollectionView
Using Collections Effectively
Adding Delight to your iOS App
UIKit: Apps for Every Size and Shape
New Localization Workflows in Xcode 10
Your Apps and the Future of macOS Security
What’s New in User Notifications
Using Grouped Notifications


The Qualities of Great Design
Intentional Design
The Life of a Button
Creating Great AR Experiences
Designing Notifications

Developer Tools

What's New in Swift
What's New in Testing
Swift Generics (Expanded)
Practical Approaches to Great App Performance
Testing Tips & Tricks

Graphics & Games

What’s New in ARKit 2


Introducing Core NFC
App Startup Time: Past, Present, and Future
Engineering for Testability
Modernizing Grand Central Dispatch Usage


Understanding Swift Performance
Unified Logging and Activity Tracing


Advanced NSOperations
UI Testing in Xcode


Introducing Text Kit
Advanced Text Layouts and Effects with Text Kit


Introduction to Attributed Strings for iOS
Advanced Attributed Strings for iOS