mackuba/wwdc16.md

## wwdc16.md

      
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              wwdc16.md
            
          
    Following the tradition from last year, here's my complete list of all interesting features and updates I could find in Apple's OSes, SDKs and developer tools that were announced at this year's WWDC. This is based on the keynotes, the "What's New In ..." presentations and some others, Apple's release notes, and blog posts and tweets that I came across in the last few weeks.
If for some reason you haven't watched the talks yet, I really recommend watching at least the "State of the Union" and the "What's New In" intros for the platforms you're interested in. The unofficial WWDC Mac app is great way to download the videos and keep track of what you've already watched.
If you're interested, here are my WWDC 2015 notes (might be useful if you're planning to drop support for iOS 8 now and start using some iOS 9 APIs).

OSX → macOS 10.12 Sierra

http://www.apple.com/macos/sierra-preview/

includes Siri

launch from dock, menu bar or with a keyboard shortcut
results can be pinned to the "Today" sidebar
some returned results like images can be drag&dropped to another app


any app with multiple windows can now group them into tabs in one window like in Safari or Finder

option in preferences to automatically use tabs: only in full screen (default) / always / never


new design for notification center / today sidebar
Universal Clipboard - copy/paste between Mac and iOS devices
Desktop/Documents folders can be automatically synced with iCloud Drive (?)
Auto Unlock - unlock the computer automatically with your Apple Watch
Picture-in-picture for video like on iOS
when dragging a window next to another, it will snap to the other window
all items in the menu bar can be reordered, removed (if the app allows it) and also navigated with keyboard
Safari:

blocks plugins like Flash, Java, Silverlight with click-to-run overlays, and doesn't tell sites that they're installed
makes Apple Pay available to websites - payments are confirmed with an iPhone or Apple Watch (a site can apparently even check if an iPhone is available nearby to pay?)
can now restore multiple previously closed tabs with Shift-Cmd-T like Chrome


updated Messages and Photos apps and Apple Music in iTunes with features matching iOS 10
a set of new features for reclaiming free space:

rarely used files can be moved to iCloud
automatic cleanup of files that aren't needed anymore (e.g. caches, logs, backups)
automatic cleanup of files that have been in Trash for 30 days
new graphical tool for configuring these features


Gatekeeper changes:

option to allow any (non-signed) software is removed (right-click + Open still works)
Gatekeeper Path Randomization - newly downloaded non-MAS apps will be run sandboxed inside a read-only volume at a random location


Game Center app removed
added Preferences window to Notes app
added support for RAID to Disk Utility

iOS 10

http://www.apple.com/ios/ios10-preview/

redesigned notifications

new look for notification bubbles
notifications can be force-pressed to reveal a custom live (but not fully interactive) view with more data (support for non-force-touch devices coming soon)
notifications can include images
"clear all" button


redesigned widgets

swiping to the right on lock screen shows a widget screen, like "Today" tab in Notification Center
swiping before the first page on home screen also shows the same widget screen
app's widget is also shown in the force-touch context menu
widgets have compact mode (constant size) and expanded mode
a lot of new widgets for built-in apps


redesigned lock screen

access camera by swiping to the left
access a widget screen by swiping to the right
no more "slide to unlock" (press home to leave the lock screen)
"Rest finger to unlock" option in accessibility settings
raise to wake - iPhone screen lights up when you pick up the phone (A9 devices only)


new look for the control center

music controls moved to a separate page that you can swipe to
third page for controlling HomeKit devices, if available
icons at the bottom have force-touch context menus (e.g. flashlight lets you choose light intensity)


many new features in Messages app

apps can provide stickers to be posted in messages or added to images, bubbles or other stickers
built-in "app store" for installing apps that integrate into Messages
previews for links and media in messages like in FB Messenger, videos/tracks can be played straight from a message
bubble animations - choosing the way the message will appear
full screen animations like fireworks
reactions to messages
sending handwritten notes
sending digital touch messages like from Apple Watch
drawing with a finger on photos
huge emojis in bubbles that only include an emoji
auto-suggesting words that can be replaced with emoji
threads list shows contacts' avatars or initials in circles
sending read receipts can be configured per person
option to use low quality images on bad connection


redesigned Apple Music

new design with large bold headings
lyrics support
Music app can automatically remove rarely played songs to free some space


redesigned News app

big headings with new bold font
breaking news notifications
paid subscriptions


updated Maps app

search moved to bottom, includes automatic suggestions
option to avoid toll roads
during navigation you can look for things like gas stations on the way and Maps will add a detour
navigation now auto zooms in/out and shows traffic
you can look ahead in navigation mode
apps can add extensions to Maps
"Show Parked Location" (requires a Bluetooth connection to the car?)


updated Photos app

"memories" feature - automatically groups photos into smart collections
added image recognition, lets you search for various objects (indexing done completely on the device)
automatic slideshow videos
places album that groups photos by location
people album that groups photos by who is on them
editing live photos
live photos stabilization?
"brilliance" adjustment tool
markup (drawing) on photos


Safari updates:

unlimited tabs
two Safaris in Split View on iPad side by side ("Open in Split View" in the context menu when you press a link)
you can quickly close all open tabs
pinch to zoom is enabled on all sites (even if the site specifically disables it with meta tags)


improvements in Mail app:

Mail now has a proper thread view like e.g. in Gmail
on the big iPad Pro there's a 3-column view
filter view
Mail suggests to which folder you might want to move an email
quick unsubscribing from newsletters


updated Clock app

redesigned with a black background
bedtime tab - setting reminders to go to bed and a new way to set wake up alarms
new beautiful long alarm sounds specifically for the bedtime feature
sleep time statistics (shows when bedtime/wakeup alarm was set on given days)


Apple Watch app:

"Face Gallery" that presents available watch faces and complications
option to automatically upload music to the Watch
Background App Refresh toggles for apps


Home app for managing HomeKit devices

"scenes" allow performing actions on multiple devices at once


Universal Clipboard - copy/paste between Mac and iOS devices
smarter typing suggestions, including things like current location, addresses, contact info
autocorrect supports words from multiple languages in one sentence
VoIP apps can integrate better with the OS and make calls appear just like those done from the Phone app
most built-in apps can now be removed

this doesn't let you choose third party apps as default replacements though
you can restore them later from the App Store
apps aren't actually deleted from the phone, just hidden (you can restore them even with Airplane Mode on)


lots of small new features added to force touch context menus:

option to share a link to the app
option to prioritize download of an app that's being updated (or pause/cancel download)
Settings app has links to things like cellular data or battery
force touch menu for folders shows an option to rename the folder and shortcuts to apps inside it which have badges
TestFlight apps have an option to send feedback to the developer


app/folder opening animations are faster?
opening camera no longer stops music
the "Back to previous app" link in the status bar is smaller and leaves space for cellular signal strength
shared documents and collaborative editing in Notes app
organ donation agreement info in the Health app
Split View support in App Store app on iPad
Game Center app removed
Voicemail transcriptions
changed vibration pattern for mute switch (?)
dark mode will probably be added in future, disabled for now
dropped support for iPhone 4s
32-bit-only apps show a warning when launched for the first time

watchOS 3

http://www.apple.com/watchos-preview/

glances replaced by a "dock" app switcher launched using the side button
control center (swipe from the bottom)
apps will now launch much faster on average

apps that are in the dock are kept in memory and updated in the background
same for apps whose complications are currently displayed
fitness apps can also run in the background
even apps that aren't in the background should launch faster


raising your wrist shows previously open app for up to 8 minutes, after that it switches back to watch face
quickly switching between watch faces by swiping left/right on the watch face
a few new watch faces (a set of Activity faces, Numerals, X-Large, Minnie Mouse)
more spaces for complications in existing faces
new complications for built-in apps
more reaction options in notifications
you can now type text by drawing letters (even in Chinese)
some built-in apps have new layout/navigation
updated Messages with features matching iOS 10
timer app: easy way to pick common intervals for timer
clock app: redesigned with bedtime reminders
workout app: auto pausing, more metrics on one screen
new ‘Breathe’ app - like meditation apps on iOS, but very simple, includes reminders
Heart Rate moved to a new app
Home app for managing HomeKit devices
Find My Friends and Reminders apps
deleting built-in apps from iOS also removes them from the Watch
emergency SOS calls by holding the side button and selecting from the menu -> calls 112/911

sends your info, location
shows your “medical ID”


activity sharing: shares your activity rings with friends or family, you can send messages through the app commenting on their activity
better support for wheelchair users (no more "Time to stand up" :)
Apple Watch can now unlock your computer without having to type a password
shortcut for taking screenshots can be disabled

tvOS 10

http://www.apple.com/tvos-preview/

updated Photos and Apple Music with features matching iOS 10
Siri can search movies by topic
Siri can find content on YouTube
live tune-in - go straight to live video instead of having to navigate through the app
dark mode
Home app for managing HomeKit devices
keyboard on an iPhone can be used to type on tvOS keyboard
Remote app for iOS that controls the Apple TV
support for up to 4 game controllers
games can require a controller
single sign on for paid TV apps
apps can now add badges on icons like on iOS
automatic download of apps bought on another device

Foundation & core frameworks

https://developer.apple.com/library/prerelease/content/releasenotes/Miscellaneous/RN-Foundation-OSX10.12/ 

https://developer.apple.com/library/prerelease/content/releasenotes/General/WhatNewCoreData2016/

iCloud Core Data sync is deprecated - though it will continue to work for a while
CloudKit now allows sharing data between users
NSPersistentContainer - a simpler interface for setting up Core Data
NSDateInterval for representing intervals between two dates
NSDimension, NSMeasurement, NSMeasurementFormatter - for representing units of measure and converting between different units
NSISO8601DateFormatter
NSPersonNameComponentsFormatter can parse name components from a single name string
NSURLSessionTaskMetrics for measuring request time
completely new logging system
BNNS (Basic neural network subroutines) - a simple neural network SDK, focused on image recognition (part of Accelerate framework)
App Transport Security will be required for all apps at end of 2016, most existing exceptions removed (there will be exceptions for web views and video streaming)
various parts of Foundation, Core Data and other core frameworks are now accessible from Swift 3 through significantly more "swifty" APIs (more strictly typed, less string-based, more object oriented, less boilerplate)

macOS SDK

https://developer.apple.com/macos/ 

https://developer.apple.com/library/prerelease/content/releasenotes/MacOSX/WhatsNewInOSX/Articles/OSXv10.html 

https://developer.apple.com/library/prerelease/content/releasenotes/AppKit/RN-AppKit/

non-MAS apps (signed only with DeveloperID) can now use CloudKit, Push Notifications, iCloud Keychain, iCloud Drive
new API for Safari extensions, extensions can now be sold through the App Store
apps can integrate with the Contacts app, adding info to contacts
photo extensions can edit live photos
window tabs support - automatic for NSDocument apps, new API for other apps
NSCollectionView:

collapsible sections
floating headers
scrollable backgrounds


NSFetchResultsController from iOS is now available on the Mac
NSGridView - like UIStackView but on a grid
NSStatusItem: options to allow the user to remove the icon from the menu bar
simpler convenience constructors for a lot of UI control classes
new APIs for handling content copied via Universal Clipboard
support for wide color spaces
purpose strings are now required to ask for permission to anything (camera, calendar etc.)
AppKit can automatically find layout feedback loops (NSViewLayoutFeedbackLoopDebuggingThreshold)
better support for right-to-left languages
UIAutomation framework is deprecated
removed support for garbage collection

iOS SDK

https://developer.apple.com/ios/ 

https://developer.apple.com/library/prerelease/content/releasenotes/General/WhatsNewIniOS/Articles/iOS10.html 

http://adcdownload.apple.com/WWDC_2016/iOS_10_beta/iOS_10_beta_Release_Notes.pdf 

https://developer.apple.com/ios/human-interface-guidelines/overview/whats-new/ 

https://developer.apple.com/sirikit/ 

https://developer.apple.com/imessage/

Siri SDK (Intents) - only for: ride booking, messages, payments, fitness, voip, searching photos, and some CarPlay features
iMessage SDK - sticker packs and apps running inside Messages app
CallKit:

identification and blocking of incoming calls
call provider API - VoIP apps can make their calls appear just like those done from the Phone app and appear on Phone app's history and favorites list


Speech framework - speech recognizer
UserNotifications - new APIs for handling notifications

notifications now have a title, subtitle and description
notifications can have media attachments (including gifs)
more control over how the notifications are displayed, more callbacks
app extension for expanded views when the user presses the notification
service extension that pre-processes the notification before it's displayed (e.g. to implement encryption)
you can even update already delivered notifications
default action can be assigned to be called when a notification is dismissed


Video Subscriber Account framework - for supporting single sign on with paid TV network accounts
UIApplication.openURL is now asynchronous with a completion handler
UICloudSharingController - for letting the user share content with others through CloudKit
UICollectionView:

automatic size estimation in flow layout
paging support
automatic cell prefetching
data prefetching


UIGraphicsRenderer - new block-based API for rendering images in memory
UIPreviewInteraction - new class for implementing more complex force touch interactions
UIRefreshControl is now supported in all scroll views, table views and collection views
UISpringTimingParameters - for more precise spring animations
UITabBar: more options to customize colors
UITableView: prefetching delegate like in UICollectionView
UITextField can provide more fine-grained info about its semantics (textContentType) to get better smart suggestions while typing
UIViewPropertyAnimator for controlling complex and interactive animations
advertisingIdentifier returns a string of zeroes if user has enabled limiting ad tracking
NSUserActivity and Spotlight APIs:

support for specifying user and place locations
Spotlight continuation - user can continue Spotlight search inside the app
apps can query the Spotlight index


PassKit: new APIs for handling payments without using UIKit controls
Photos framework: apps can edit live photos
SceneKit: new rendering engine
SFContentBlockerManager: content blocker can check if user has enabled it
SFSafariViewController: you can set toolbar tint color
WKWebView: more options for implementing peek & pop
widgets:

now displayed in a few different places
need to be able to handle two different display modes: compact (fixed height) and extended (whatever space you need)
new options for setting vibrancy


improvements to Dynamic Type:

text size is now a trait, can be used in AutoLayout
available in app extensions
labels and text views can automatically update themselves (adjustsFontForContentSizeCategory)


many new app extension types (19 in total now)
new APIs for handling content copied via Universal Clipboard
support for wide color spaces
purpose strings are now required to ask for permission to anything (camera, calendar etc.)

watchOS SDK

https://developer.apple.com/watchos/ 

https://developer.apple.com/library/prerelease/content/releasenotes/General/WhatsNewInwatchOS/Articles/watchOS3.html

complications can now have 50 scheduled updates per day
glances no longer available
notification detail views can have more complex UIs, including SceneKit
UserNotifications API like on iOS

Watch can show its own notifications locally, independently of the iPhone


dock snapshots:

new app dock shows static snapshots of apps saved when they were suspended
periodically updated in the background, e.g. when a notification is received
you can control what gets saved into the snapshot - can be different than the actual UI


in apps with hierarchical navigation you can do vertical paging from one detail view to another (as long as they fit on one screen)
ability to play inline audio and video (Core Audio, AVFoundation)
support for Background App Refresh and background URL sessions
access to crown and touch events, gesture recognizers (WKGestureRecognizer)
fitness apps are allowed to run in the background and access sensors continuously (accelerometer, gyroscope, heart rate)

iOS app can automatically start matching Watch app when the user starts a workout


support for Apple Pay
SpriteKit and SceneKit
CloudKit, GameKit, HomeKit
support for wide color spaces

tvOS SDK

https://developer.apple.com/tvos/ 

https://developer.apple.com/library/prerelease/content/releasenotes/General/WhatsNewinTVOS/Articles/tvOS10.html

support for Photos, HomeKit, ReplayKit, Multipeer Connectivity
UserNotifications API like on iOS
Video Subscriber Account framework - for supporting single sign on with paid TV network accounts
new view focusing API (UIFocusItem)
dark mode implemented as a new trait
new APIs for handling content copied via Universal Clipboard
support for wide color spaces
purpose strings are now required to ask for permission to anything (camera, calendar etc.)

Developer tools

https://developer.apple.com/swift/ 

https://developer.apple.com/swift/playgrounds/

Swift Playgrounds app for learning and experimenting with Swift on an iPad
unified and redesigned documentation site

Xcode 8

https://developer.apple.com/xcode/ 

http://adcdownload.apple.com/Developer_Tools/Xcode_8_beta_2/Release_Notes_for_Xcode_8_beta_2.pdf

Xcode editor extensions (old plugins don't work anymore)
improvements in storyboards:

smooth zooming, allows editing at any zoom level
should be much faster
allows switching quickly between device sizes ("view as")
much more accurate rendering (done using the simulator), includes effects like vibrancy
supports both AutoLayout and non-AutoLayout views in a single hierarchy


automatic provisioning in development mode

support for multiple development certificates per user
manual control still possible, more customizable and transparent than before


includes both Swift 3 and 2.3 for easier migration to new SDKs (but it’s recommended to migrate to Swift 3 soon)
Swift compiler can treat warnings as errors
includes complete documentation (no need for extra downloads)
asset bundles improvements:

automatic compression
support for right-to-left
support for wide color assets


memory debugger for visualizing object graphs in memory and finding leaks (Swift 3)
thread sanitizer for detecting threading bugs (Swift 3)
address sanitizer supports Swift (3)
static code analyzer finds missing localizations, nullability violations in ObjC
accessibility inspector to detect missing accessibility info (including automatic audit)
view debugger:

more accurate display
more detailed info about constraints
shows autolayout issues


better Core Data support: Xcode can now automatically create and manage NSManagedObject subclasses for your models (Swift 3)
color and image literals
new San Francisco Mono font
new color themes
active line highlighting
comments like TODO or FIXME are listed in the method dropdown with nice icons
LLDB runs in a separate process, so shouldn't crash Xcode anymore
xcodebuild has a "-quiet" flag
Xcode cleans up outdated derived data, precompiled headers and module caches
supports switching Swift toolchains without relaunching Xcode

App Store


promo codes for in-app purchases
subscriptions:

allowed for any kind of app
subscriptions leave 85% revenue for the developer after 1st year for a given user
per territory pricing, more price tiers
you can choose to let users keep old price after raising prices


analytics now counts "impressions" (number of times your app has appeared on any lists) apart from product page views
screenshot simplification: upload one set of screenshots per device class and by default they're reused for all smaller devices and all locales
support for stickers: new category, new set of screenshots for how your app looks inside iMessage
completely rewritten App Store review guidelines (more human readable, translated to 10 languages)
iTunes Connect Mobile updates:

supports multiple teams
can switch between downloads and revenues
can release a prepared version to the App Store


ObjC


classes can now have class properties (@property (class)) - no @synthesize though, you have to implement them yourself
support for type inference (__auto_type)

Other

https://developer.apple.com/library/prerelease/content/releasenotes/General/WhatsNewInSafari/Articles/Safari_10_0.html 

https://developer.apple.com/library/prerelease/content/documentation/FileManagement/Conceptual/APFS_Guide/

Apple File System (APFS) - preview version available for testing