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https://github.com/davidcafor/wwdc-developer-curriculum

A curated roadmap of foundational WWDC sessions (2019-2025) for modern iOS developers. Focus on core concepts, not hype.
https://github.com/davidcafor/wwdc-developer-curriculum

apple-developer architecture concurrency ios-development roadmap swift swiftdata swiftui wwdc xcode

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A curated roadmap of foundational WWDC sessions (2019-2025) for modern iOS developers. Focus on core concepts, not hype.

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README 

          
# 🍎 The Unofficial Apple Developer Curriculum

### WWDC19 → WWDC25



A complete, curated roadmap for modern Apple developers.



> **Goal**  

> Build a deep, long-lasting understanding of Apple development:  

> Swift → SwiftUI → Concurrency → Data → Testing → Performance → visionOS → Swift 6

>

> **Rules**  

> • Only sessions that still matter today  

> • No fluff, no hype  

> • Production-first mindset

>

> **How to use**  

> • Read top to bottom for historical context  

> • Or jump by topic using the learning paths at the end



---



## 🟦 WWDC19 — Foundations



### 🧠 Swift & Language

**What's New in Swift** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/402/  

*Property wrappers, opaque types, and the foundations of modern Swift*



**Modern Swift API Design** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/415/  

*How to design APIs that feel native. Essential for architecture*



---



### 🎨 SwiftUI — The Beginning

**Introducing SwiftUI: Building Your First App** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/204/  

*The starting point. Watch this before anything else about SwiftUI*



**SwiftUI Essentials** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/216/  

*Views, modifiers, and the declarative model explained from scratch*



**Data Flow Through SwiftUI** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/226/  

*@State, @Binding, @ObservableObject. Fundamental to understanding SwiftUI*



**Building Custom Views with SwiftUI** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/237/  

*Composition, ViewBuilder, and how to create reusable components*



**Mastering Xcode Previews** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/233/  

*Previews as a development tool, not just for viewing UI*



---



### 🛠 Xcode & Developer Workflow

**Great Developer Habits** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/239/  

*Organize, track, document, test, analyze... professional development*



**Getting Started with Xcode** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/404/  

*Editor, debugger, simulators. The basics done right*



**Testing in Xcode** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/413/  

*XCTest fundamentals. Unit tests, UI tests, performance tests*



**Designing for Accessibility** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/244/  

*Not optional. VoiceOver, Dynamic Type, and basic principles*



---



### 🔌 Frameworks & Platforms

**Introducing Combine** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/722/  

*Publishers, subscribers, operators. Still relevant despite async/await*



**Combine in Practice** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/721/  

*Real cases: networking, form validation, KVO*



**What's New in Machine Learning** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/209/  

*Core ML 3, Create ML. The beginning of on-device ML*



**Advances in Foundation** — WWDC19  

https://developer.apple.com/videos/play/wwdc2019/723/  

*Ordered Collection Diffing, Codable improvements, Data compression*



---



## 🟦 WWDC20 — SwiftUI Becomes Real



### 🎨 SwiftUI Architecture & Layout

**What's New in SwiftUI** — WWDC20  

https://developer.apple.com/videos/play/wwdc2020/10041/  

*LazyStacks, Grids, toolbars. SwiftUI starts becoming production-ready*



**Data Essentials in SwiftUI** — WWDC20  

https://developer.apple.com/videos/play/wwdc2020/10040/  

*@StateObject, @ObservedObject, @EnvironmentObject clarified*



**App Essentials in SwiftUI** — WWDC20  

https://developer.apple.com/videos/play/wwdc2020/10037/  

*@main, App protocol, Scene API. Goodbye AppDelegate (in SwiftUI)*



**Stacks, Grids, and Outlines in SwiftUI** — WWDC20  

https://developer.apple.com/videos/play/wwdc2020/10031/  

*LazyVGrid, LazyHGrid, OutlineGroup. Advanced layout*



**Structure Your App for SwiftUI Previews** — WWDC20  

https://developer.apple.com/videos/play/wwdc2020/10149/  

*Dependency injection for fast and useful previews*



---



### 🧩 Documents, Widgets & Modularity

**Build Document-Based Apps in SwiftUI** — WWDC20  

https://developer.apple.com/videos/play/wwdc2020/10039/  

*DocumentGroup, FileDocument, ReferenceFileDocument*



**Build SwiftUI views for widgets** — WWDC20  

https://developer.apple.com/videos/play/wwdc2020/10033/  

*Timeline, configuration, placeholder. The widget model*



**Widgets Code-along (Parts 1–3)** — WWDC20  

https://developer.apple.com/videos/play/wwdc2020/10034/  

*Watch Apple build a widget from scratch*



**Swift Packages: Resources and Localization** — WWDC20  

https://developer.apple.com/videos/play/wwdc2020/10169/  

*Assets, strings, files in SPM. Real modularization*



---



### 🛠 Tooling & Monetization

**Meet StoreKit Testing in Xcode** — WWDC20  

https://developer.apple.com/videos/play/wwdc2020/10659/  

*Purchase testing without sandbox. Game changer for IAPs*



**Advances in Xcode Build System** — WWDC20  

https://developer.apple.com/videos/play/wwdc2020/10147/  

*Build times, dependencies, targets. For large projects*



**Why is my app getting killed?** — WWDC20  

https://developer.apple.com/videos/play/wwdc2020/10078/  

*Memory, CPU, background tasks. Debugging production crashes*



---



## 🟦 WWDC21 — Modern Concurrency Era



### 🧠 Swift Concurrency

**Meet async/await in Swift** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10132/  

*The biggest change in Swift since ARC. Fundamental*



**Explore structured concurrency in Swift** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10134/  

*Tasks, task groups, cancellation. How to think about concurrency*



**Protect mutable state with Swift actors** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10133/  

*Actor isolation, Sendable, @MainActor. Thread safety without locks*



**Swift Concurrency: Behind the Scenes** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10254/  

*How it works internally: cooperative thread pool, continuations*



**Use async/await with URLSession** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10095/  

*Modern networking. Goodbye completion handlers*



**Meet AsyncSequence** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10058/  

*Asynchronous data streams. For websockets, file reading, etc*



---



### 🎨 SwiftUI & UIKit Interop

**What's New in SwiftUI** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10018/  

*@FocusState, refreshable, task modifier, async images*



**Add rich graphics to your SwiftUI app** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10021/  

*Canvas, TimelineView, custom graphics*



**Demystify SwiftUI** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10022/  

*Identity, lifetime, dependencies. How SwiftUI decides what to update*



**Craft search experiences in SwiftUI** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10176/  

*.searchable modifier and tokens*



**SF Symbols in SwiftUI** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10349/  

*Rendering modes, variable color, custom symbols*



---



### 🧪 Memory, ARC & Debugging

**ARC in Swift: Basics and Beyond** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10216/  

*Reference counting, weak/unowned, retain cycles*



**Detect and Diagnose Memory Issues** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10180/  

*Memory graph debugger, leak detection in Instruments*



**Discover breakpoint improvements** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10209/  

*Advanced breakpoints, symbolic breakpoints*



**Xcode Cloud Workflows** — WWDC21  

https://developer.apple.com/videos/play/wwdc2021/10267/  

*Apple's native CI/CD*



---



## 🟦 WWDC22 — Structure & Scale



### 🎨 SwiftUI Navigation & Layout

**What's New in SwiftUI** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/10052/  

*NavigationStack, NavigationSplitView, Charts*



**The SwiftUI cookbook for navigation** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/10054/  

*Recipes for complex navigation*



**Compose custom layouts with SwiftUI** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/10056/  

*Layout protocol. Full control over layout*



**SwiftUI on iPad: Organize your interface** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/10058/  

*Split views, toolbars, multitasking*



**SwiftUI on iPad: Add toolbars, titles, and more** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/110343/  

*Navigation bars, document groups*



---



### 🧠 Swift Language & Safety

**What's New in Swift** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/110354/  

*Regex, if let shorthand, buildPartialBlock*



**Embrace Swift generics** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/110352/  

*some, any, opaque types explained in depth*



**Design protocol interfaces in Swift** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/110353/  

*Primary associated types, type erasure*



**Eliminate data races using Swift Concurrency** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/110351/  

*Sendable, actor isolation, MainActor*



**Visualize and optimize Swift concurrency** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/110350/  

*Instruments for concurrency debugging*



---



### 📊 Data & Monetization

**Hello Swift Charts** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/10136/  

*Intro to Swift Charts*



**Swift Charts: Raise the bar** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/10137/  

*Customization and advanced cases*



**Meet StoreKit 2** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/10007/  

*Modern API for in-app purchases*



**Implement proactive in-app purchase restore** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/110404/  

*Proper handling of restorations*



**What's new in notarization for Mac apps** — WWDC22  

https://developer.apple.com/videos/play/wwdc2022/10109/  

*For distribution outside the Mac App Store*



---



## 🟦 WWDC23 — Modern State & Data



### 🧠 Swift & State

**What's New in Swift** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10164/  

*Macros, if/switch expressions, noncopyable types*



**Expand on Swift macros** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10167/  

*Create your own macros*



**Write Swift macros** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10166/  

*Macro implementation, SwiftSyntax*



**Discover Observation in SwiftUI** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10149/  

*@Observable. The end of ObservableObject in SwiftUI*



**Migrate to Swift 6** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10169/  

*Preparation for strict concurrency checking*



---



### 💾 Persistence

**Meet SwiftData** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10187/  

*Swift-native persistence. Core Data's replacement*



**Model your schema with SwiftData** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10195/  

*@Model, relationships, migrations*



**Build an app with SwiftData** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10154/  

*Complete app with SwiftData*



**Dive deeper into SwiftData** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10196/  

*Predicates, sorting, custom data stores*



**Migrate to SwiftData** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10189/  

*From Core Data to SwiftData*



---



### 🎨 SwiftUI & Tooling

**What's New in SwiftUI** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10148/  

*@Observable, Inspector, MapKit integration*



**Animate with springs** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10158/  

*Physics-based animations, KeyframeAnimator*



**Beyond scroll views** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10159/  

*ScrollView customization, scroll targets*



**Inspectors in SwiftUI** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10161/  

*Inspector sidebar pattern*



**Meet TipKit** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10229/  

*Onboarding and feature discovery*



**Wind your way through advanced animations** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10157/  

*PhaseAnimator, advanced keyframes*



---



### 🧪 Testing & Debugging

**Fix failures faster with Xcode test reports** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10175/  

*Improved test reports*



**Simplify distribution in Xcode** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10224/  

*Notarization, TestFlight*



**What's new in Xcode 15** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10186/  

*Bookmarks, enhanced macro expansion*



---



### 🥽 visionOS

**Meet SwiftUI for spatial computing** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10109/  

*SwiftUI in 3D*



**Principles of spatial design** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10072/  

*Design for spatial environments*



**Design for spatial user interfaces** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10076/  

*UI patterns in visionOS*



**Meet ARKit for spatial computing** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10082/  

*Hand tracking, world sensing*



**Build spatial experiences with RealityKit** — WWDC23  

https://developer.apple.com/videos/play/wwdc2023/10080/  

*3D content, entities, components*



---



## 🟦 WWDC24 — Performance & Swift 6



### 🧠 Swift 6

**What's New in Swift** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10136/  

*Noncopyable types, embedded Swift, C++ interop*



**Migrate your app to Swift 6** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10169/  

*Complete data-race safety*



**A Swift Tour: Explore Swift's features and design** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10184/  

*Complete tour of the modern language*



**Go small with Embedded Swift** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10197/  

*Swift for microcontrollers*



**Consume noncopyable types in Swift** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10170/  

*Ownership, borrowing, consuming*



---



### 🎨 SwiftUI Performance

**What's New in SwiftUI** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10144/  

*Mesh gradients, custom containers, window management*



**Demystify SwiftUI containers** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10146/  

*ForEach, List, custom containers*



**SwiftUI essentials** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10150/  

*Core concepts revisited with best practices*



**Enhance your UI animations and transitions** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10145/  

*Zoom transitions, custom transitions*



**Bring your app's core features to users with App Intents** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10210/  

*Siri, Shortcuts, Spotlight integration*



---



### 🧪 Testing & Tooling

**Meet Swift Testing** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10179/  

*New modern testing framework*



**Go further with Swift Testing** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10195/  

*Parameterized tests, suites, traits*



**Debug with structured logging** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10138/  

*OSLog structured logging*



**Analyze heap memory** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10173/  

*Memory graph, leaks in complex apps*



**Run, Break, Inspect: Explore effective debugging** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10198/  

*LLDB, breakpoints, memory inspection*



**What's new in Xcode 16** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10135/  

*Thread Performance Checker, Predictive code completion*



---



### 🚀 Performance

**Analyze heap memory** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10173/  

*Transient growth, persistent growth, leaks*



**Profile and optimize your game's memory** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10106/  

*Metal, textures, mesh optimization*



**Optimize app power and performance for spatial computing** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10100/  

*Battery life in visionOS*



---



### 🥽 visionOS Advanced

**Create enhanced spatial computing experiences** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10093/  

*Advanced RealityKit, custom effects*



**Build a spatial drawing app with RealityKit** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10104/  

*Hands-on RealityKit*



**Compose interactive 3D content in Reality Composer Pro** — WWDC24  

https://developer.apple.com/videos/play/wwdc2024/10102/  

*Content creation for visionOS*



---



## 🟦 WWDC25 — Current State



*These are the most recent. Check them after mastering WWDC19-24*



**What's New in Swift** — WWDC25  

https://developer.apple.com/videos/play/wwdc2025/10159/



**What's New in SwiftUI** — WWDC25  

https://developer.apple.com/videos/play/wwdc2025/10144/



**What's New in Xcode 17** — WWDC25  

https://developer.apple.com/videos/play/wwdc2025/10185/



---



## 🧭 Recommended Learning Paths



### 🎯 Path 1: Swift Fundamentals → Modern Concurrency

1. What's New in Swift (WWDC19)

2. Modern Swift API Design (WWDC19)

3. Meet async/await in Swift (WWDC21)

4. Explore structured concurrency (WWDC21)

5. Protect mutable state with Swift actors (WWDC21)

6. Swift Concurrency: Behind the Scenes (WWDC21)

7. Embrace Swift generics (WWDC22)

8. Design protocol interfaces (WWDC22)

9. Eliminate data races (WWDC22)

10. Migrate to Swift 6 (WWDC24)



### 🎯 Path 2: SwiftUI Zero to Hero

1. Introducing SwiftUI (WWDC19)

2. SwiftUI Essentials (WWDC19)

3. Data Flow Through SwiftUI (WWDC19)

4. Building Custom Views (WWDC19)

5. What's New in SwiftUI (WWDC20)

6. Data Essentials (WWDC20)

7. App Essentials (WWDC20)

8. Demystify SwiftUI (WWDC21)

9. What's New in SwiftUI (WWDC22)

10. Compose custom layouts (WWDC22)

11. Discover Observation (WWDC23)

12. SwiftUI essentials (WWDC24)

13. Demystify SwiftUI containers (WWDC24)



### 🎯 Path 3: Architecture & Data

1. Modern Swift API Design (WWDC19)

2. Advances in Foundation (WWDC19)

3. Data Essentials in SwiftUI (WWDC20)

4. Structure Your App for SwiftUI Previews (WWDC20)

5. Swift Packages: Resources and Localization (WWDC20)

6. Meet Observation (WWDC23)

7. Meet SwiftData (WWDC23)

8. Model your schema with SwiftData (WWDC23)

9. Dive deeper into SwiftData (WWDC23)



### 🎯 Path 4: Testing & Debugging

1. Great Developer Habits (WWDC19)

2. Testing in Xcode (WWDC19)

3. ARC in Swift: Basics and Beyond (WWDC21)

4. Detect and Diagnose Memory Issues (WWDC21)

5. Meet Swift Testing (WWDC24)

6. Go further with Swift Testing (WWDC24)

7. Run, Break, Inspect (WWDC24)

8. Analyze heap memory (WWDC24)



### 🎯 Path 5: Performance & Optimization

1. Why is my app getting killed? (WWDC20)

2. Visualize and optimize Swift concurrency (WWDC22)

3. Optimize SwiftUI performance (WWDC24)

4. Analyze heap memory (WWDC24)

5. Profile and optimize your game's memory (WWDC24)



### 🎯 Path 6: visionOS Specialist

1. Principles of spatial design (WWDC23)

2. Design for spatial user interfaces (WWDC23)

3. Meet SwiftUI for spatial computing (WWDC23)

4. Meet ARKit for spatial computing (WWDC23)

5. Build spatial experiences with RealityKit (WWDC23)

6. Create enhanced spatial computing experiences (WWDC24)

7. Build a spatial drawing app with RealityKit (WWDC24)



---



## 📚 Extra Resources



### Blogs & Newsletters

- [Swift by Sundell](https://www.swiftbysundell.com/) — Technical deep dives

- [NSHipster](https://nshipster.com/) — Foundation and obscure APIs

- [Hacking with Swift](https://www.hackingwithswift.com/) — Tutorials and news

- [Swift Evolution](https://www.swift.org/swift-evolution/) — Language proposals

- [objc.io](https://www.objc.io/) — Advanced topics



### Books

- **Advanced Swift** — objc.io

- **Swift in Depth** — Tjeerd in 't Veen  

- **Thinking in SwiftUI** — objc.io



### Open Source

- [Point-Free](https://github.com/pointfreeco) — TCA, Dependencies, macros

- [Airbnb iOS](https://github.com/airbnb/lottie-ios) — Animations

- [Kickstarter iOS](https://github.com/kickstarter/ios-oss) — Full open source app



### Tools

- **SF Symbols** — Apple's icon system

- **Instruments** — Profiling and performance

- **Create ML** — Machine learning without code



---



## 🎓 Final Note



If you complete this curriculum:



You won't just *know* Apple development.  

You'll understand **why it works the way it does**.



And that's what makes you senior.



---



## 🤝 Contributing



Missing an essential session? Better descriptions? Broken links?



Open an issue or PR. This is a community project.



**Criteria for adding sessions:**

- Must be relevant today (no deprecated technologies)

- Must teach fundamental concepts or reusable patterns

- Must be production-ready (not demos or experiments)



---



## 📄 License



CC0 1.0 Universal — Public Domain  

Use it, share it, improve it.