WWDC21 Recap: Everything You Missed

WWDC21 was Apple’s largest Worldwide Developers Conference ever, running from June 7 to June 11, 2021, and it was packed with major announcements across iOS, iPadOS, macOS, watchOS, and more. If you skipped the keynote or the 200+ sessions, here’s a concise recap of the biggest reveals and the details that matter most to developers and users alike.

Keynote Highlights

The opening keynote on June 7 set the tone for the week. Apple introduced iOS 15, iPadOS 15, macOS Monterey, watchOS 8, and a slew of new developer tools. The most striking visual change came with macOS Monterey’s new Universal Control feature, which lets a single mouse and keyboard work seamlessly across a Mac and an iPad placed side by side. Another crowd-pleaser was SharePlay, a FaceTime feature that synchronizes video, music, and screen sharing during calls. Apple also revealed its new privacy features, including App Privacy Report and on-device Siri processing, reinforcing its stance on user data protection.

iOS 15: Focus, Notifications, and Live Text

iOS 15 refines the iPhone experience with a strong emphasis on reducing distraction. The new Focus mode lets you filter notifications based on your current activity—work, sleep, personal time—and syncs those settings across all Apple devices. Notifications received a redesign with larger icons and a new notification summary that bundles less urgent alerts. Live Text uses on-device intelligence to recognize text in photos, allowing you to copy, paste, look up, and translate text directly from an image. Visual Look Up goes further, identifying objects, landmarks, and even dog breeds in photos. The Weather app was completely redesigned with new graphics, and Maps gained 3D landmarks and an immersive walking AR experience in select cities.

iPadOS 15: Widgets and Multitasking

iPadOS 15 finally brings home screen widgets to the iPad, letting you place them anywhere among your apps. The App Library, a feature already on iPhone, also arrives on iPad, making it easier to organize and find apps. Multitasking got a major overhaul with a new top-of-screen menu that gives quick access to Split View and Slide Over. A new shelf appears when you open an app, showing all its open windows for easier switching. Quick Note, a system-wide feature, lets you summon a note from any corner of the screen with a swipe, and you can even link notes to specific app content like a webpage or a location in Maps.

macOS Monterey: Continuity and Shortcuts

macOS Monterey builds on the foundation of Big Sur with a focus on continuity and automation. Universal Control is the headline act, but Monterey also brings AirPlay to the Mac, allowing you to stream content from your iPhone or iPad directly to your Mac’s display. Shortcuts, the automation app that was previously iOS-only, now comes to the Mac with a full library of actions and the ability to run shell scripts. Safari received a refreshed design with a unified tab bar and tab groups that sync across devices. FaceTime links now work across platforms, so Android and Windows users can join calls via a web browser.

watchOS 8 and Health Updates

watchOS 8 focuses on health and connectivity. The new Mindfulness app replaces Breathe, adding a Reflect mode that encourages positive thinking. Sleep tracking gains respiratory rate measurement, and new workout types include Tai Chi and Pilates. The Photos watch face now supports portrait photos, and you can share watch faces with friends. For developers, Apple introduced new health APIs, including one for blood oxygen measurement and another for irregular heart rhythm notifications, opening the door for more sophisticated health apps.

Developer Tools and Technologies

WWDC is as much for developers as it is for consumers. This year, Apple introduced Xcode Cloud, a continuous integration and delivery service that lets developers build, test, and deliver apps directly from Xcode. Swift gained new concurrency features to simplify writing asynchronous code. ARKit 5 brings location anchors and more realistic face tracking, and RealityKit 2 adds object capture, which lets developers turn photos into 3D models. The new Passkeys feature in iCloud Keychain aims to replace passwords with biometric-based authentication, a step toward a passwordless future.

Privacy and Security Enhancements

Privacy was a recurring theme throughout the keynote. iOS 15 adds Mail Privacy Protection, which hides your IP address and prevents senders from knowing if you’ve opened an email. App Privacy Report shows you how often apps access your location, photos, camera, and microphone in the last seven days. Siri now processes audio entirely on-device for many requests, meaning your voice data never leaves your iPhone. iCloud+ introduces Private Relay, which encrypts your internet traffic and routes it through two separate relays to hide your browsing activity from websites and network providers.

Frequently Asked Questions

When will iOS 15 be available to the public?

The developer beta was available immediately after the keynote, with a public beta following in July. The final version was released to all users in September 2021, alongside the iPhone 13 launch.

Is Universal Control available on all Macs and iPads?

Universal Control requires a Mac running macOS Monterey and an iPad running iPadOS 15. It works with Macs from 2016 or later and iPads from the 6th generation or later. It uses Bluetooth and Wi-Fi, so both devices must be signed into the same Apple ID.

What happened to the Apple Silicon transition?

Apple confirmed that the transition from Intel to Apple Silicon is on track, with the M1 chip already in several Macs. During WWDC21, Apple didn’t announce new chips, but it did showcase the performance gains and the ability to run iPhone and iPad apps natively on Macs.

How does SharePlay work with non-Apple users?

SharePlay works within FaceTime calls. If you’re on a FaceTime call with someone using an Android or Windows device via a FaceTime link, you can still share your screen, but synchronized media playback (like watching a movie together) requires each participant to have the same streaming service and Apple devices.

Will iOS 15 run on my older iPhone?

iOS 15 supports all iPhones that ran iOS 14, including the iPhone 6s and iPhone SE (1st generation). However, some features like Live Text and the new Maps experience require newer hardware, specifically devices with an A12 Bionic chip or later.

What is the difference between a developer beta and a public beta?

The developer beta is released first and is intended for registered developers to test their apps. It can be unstable and may have bugs. The public beta, released later, is more polished and is open to anyone who signs up. Both are pre-release versions, so it’s recommended to install them on a secondary device.

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in t | Keynote length | min | 120 | 0
in s | Total sessions | count | 200 | 0
out avg | Sessions per day | sessions/day | s / (t / 60 / 24) | 1