iOS 14
- App Library home screen
- Widgets - in home screens and Today view, Smart Stacks, nice ripple animation when dropped
- Video picture-in-picture, drag to side to hide
- Translate app
- Siri
- Compact design, non-fullscreen modal
- Dictation on device
- Messages
- Conversation pins
- Inline replies
- Notifications only for @mentions
- Group photo
- Maps
- Place guides
- Cycling
- EV routing
- CarPlay unlock car
- App Clips
- Compact design
- Incoming call notification-like UI instead of fullscreen
- Search
- Privacy
- Share general instead of exact location
- Recording indicator dot
- App privacy stats
- Home
- Easier device setup with a bottom card on Home screen (like AirPods battery status)
- Face recognition for cameras
- tvOS camera integration
iPadOS 14
- Sidebar for Photos (similar to macOS Photos Sidebar), Calendar, Music
- Universal Search
- Handwriting, Dribble to detect shapes and text
macOS 11 Big Sur
- Focused onn UI refinement...
- Flatter toolbar buttons
- Sidebar
- Icons like iOS
- Rounded corners
- Control Center (like iOS)
- Widgets
- Maps
- Lookaround
- Favorites
- Custom Guides
- Indoor maps
- Safari Extensions with configurable permissions
watchOS
- Build UI with SwiftUI
- Face sharing, also can download apps that are part of the Face that aren't on the Watch
AirPods
- Automatic device switching
- Spatial audio for AirPods Pro
Apple Silicon
- Recompile apps to support Apple Silion
- Universal 2 supports Apple Silicon and Intel Macs with a single binary
- Rosetta 2 - automatically translates Intel apps to run on Apple Silion at install time
- Developer Transition Kit in Mac Mini enclosure