iOS SDK Release Notes for iOS 9 Beta 3

Contents:

Introduction

iOS SDK 9.0 provides support for developing iOS apps. It is packaged with a complete set of Xcode tools, compilers, and frameworks for creating apps for iOS and OS X. These tools include the Xcode IDE and the Instruments analysis tool, among many others.

With this software you can develop apps for iPhone, iPad, or iPod touch running iOS 9. You can also test your apps using the included Simulator, which supports iOS 9. iOS SDK 9.0 requires a Mac computer running OS X v10.10.3 (Yosemite) or later.

This version of iOS is intended for installation only on devices registered with the Apple Developer Program. Attempting to install this version of iOS in an unauthorized manner could put your device in an unusable state.

For more information and additional support resources, visit http://developer.apple.com/programs/ios/.

Bug Reporting

For issues not mentioned in the Notes and Known Issues section, please file bugs through the Apple Developer website (https://developer.apple.com/bug-reporting/ios/). Additionally, you may discuss these issues and iOS SDK 9.0 in the Apple Developer Forums: https://forums.developer.apple.com/community/pre-release/ios-9-beta. To get more information about iCloud for Developers, go to http://developer.apple.com/icloud.

Autosubmission of Diagnostic and Usage Data

By default, the iOS 9 beta automatically sends anonymous diagnostic and usage data back to Apple. This includes information about crashes, freezes, kernel panics, and information about how you use Apple and third-party software, hardware, and services. This information is used to help Apple improve the quality and performance of its products and services. You can stop autosubmission of diagnostics and usage data by going to Settings > Privacy > Diagnostics and Usage > Don’t Send.

Notes and Known Issues

The following issues relate to using iOS SDK 9.0 to develop code.

Accessories

Known Issue

Lightning video dongles don’t work with this beta.

Activation Lock

Fixed in Beta 3

Your iPhone may indicate that Activation Lock is turned on for your Apple Watch when it is not.

App Extensions

Known Issue

Debugging an action or sharing extension can cause the extension to be missing in the UIActivityViewController object.

Workaround: Go to the More list and go back to show the extension again.

App Store

Note

iOS 9 enforces the UILaunchImages requirement; apps can no longer declare the same launch image to support different interface orientations.

Known Issue

Users might be prompted twice for credentials on the first In-App Purchase.

Apple ID

Note

Beginning with this beta, some users will be offered the option to upgrade their Apple ID to use two-factor authentication. For more information about two-factor authentication seedeveloper.apple.com/support/two-factor-authentication. Two-factor authentication is not supported on iOS 9 betas prior to beta 3.

Known Issues

  • Attempting to create a new Apple ID via Game Center may cause a crash.

  • iForgot links may work intermittently.

    Workaround: Please try again.

  • If you upgrade your Apple ID to use two-factor authentication, iTunes purchases on Mac and Windows and store purchases on Apple TV will require you to append a six-digit verification code to the end of your password on every purchase. The six-digit code will display automatically on your iOS 9 or OS X El Capitan devices, or can be sent to your trusted phone number via a text message or phone call.

  • If your Apple ID uses two-factor authentication, you may not be able to sign in to services that use Apple ID on iOS 9 and OS X El Capitan beta installations earlier than beta 3.

  • If you disable two-factor authentication and set a new password at iForgot.apple.com, the password requirements are not indicated so your password may not be accepted.

    Workaround: Make sure your password meets these requirements:

    • Have at least one lowercase letter

    • Have at least one uppercase letter

    • Have at least one number

    • Your password must not contain more than two consecutive identical characters

    • Not be the same as the account name

    • Be at least 8 characters

    • Not be a common password

  • You cannot manage your two-factor authentication trusted devices at appleid.apple.com.

    Workaround: You can find and manage trusted devices in Settings > iCloud > yourName > Devices.

  • Removing a device from your account removes it as a trusted device for two-factor authentication, but will not sign out of any services or permanently remove it from the device list.

    Workaround: To fully remove a device, click Remove From Account then sign out of iCloud in device Settings of the device you want to remove.

  • If you enter an incorrect verification code for a two-factor authentication account in Setup Assistant, it may hang.

    Workaround: Press the Home button and go back to start setup again.

  • During Setup Assistant, tapping Cancel on the prompt that prompts you to enter the code for two-factor authentication will result in getting stuck at the login screen.

    Workaround: Press the Home button and go back to start setup again.

  • Apps that use app-specific passwords cause multiple notifications if your account uses two-factor authentication.

    Workaround: Disable the app in this beta.

Audio

Known Issue

The OpenAL framework is not available in this beta.

AVFoundation

Notes

  • The canUseNetworkResourcesForLiveStreamingWhilePaused property has been added to AVPlayerItem. The default value is NOfalse for apps linked on or after iOS 9.0 or OS X 10.11, but YEStrue for apps that were linked earlier.

    To minimize power usage, set this property to NOfalse if you do not need playback state to stay up to date while paused.

  • AVQueuePlayer now supports a mixture of file-based media and HTTP Live Streaming media in its queue. Prior to this, you had to ensure that all items in the queue were of the same type.

  • For apps linked against iOS 9 or later, the media interruption behavior for AV(Queue)Player has changed.

    Before iOS 9, apps could interrupt other media-playing clients by associating or adding AVPlayerItem to AVPlayer or by modifying the time or date of the currentAVPlayerItem (using the seekToTime: or seekToDate: methods). In iOS 9, these operations interrupt only when AVPlayer object’s playback rate is changed to a non-zero value through the rate property or play method.

  • Picture in Picture playback might stop and the Picture in Picture button might disappear when using AVPlayerViewController for video playback and replacing the underlyingAVPlayer object’s current item using replaceCurrentItemWithPlayerItem:.

  • The AVPictureInPictureController interface and the cancelPictureInPicture method are deprecated.

Calendar

Fixed in Beta 3

Calendar Time to Leave alerts may not be sent.

Camera

Known Issue

You can’t take photos in the Camera app using the side volume buttons with this beta.

CBCentralManager

Note

The retrievePeripherals: and retrieveConnectedPeripherals methods were deprecated in iOS 7.0 and removed in iOS 9.0. Apps that use these methods will crash on launch or upon pairing an accessory.

FaceTime

Fixed in Beta 3

In this beta, FaceTime calls do not connect on iPhone 6, iPhone 6 Plus, or iPad Air 2.

Family Sharing

Known Issues

  • Adding a family member inline fails.

    Workaround: Use invite to add family members.

  • Ask To Buy notifications don’t respond when tapped.

File Providers

Known Issue

On certain devices, the Document Picker is not displayed. Instead, you just see a white screen.

Foundation

Note

  • There is new Foundation API that can be used to detect if the device is in Low Power Mode. See the updated Energy Efficiency Guide for iOS Apps for details.

  • Horizontal location constraints should consistently reference either left/right or leading/trailing attributes. For apps linked against the iOS 9 SDK, NSLayoutConstraint will throw an exception if you attempt to create a constraint between a leading/trailing attribute and a left/right attribute.

GLKit

Known Issue

GLKMesh and GLKMeshBuffer objects initialize incorrectly in this beta, which limits the use of GLKit with Model I/O.

Handoff

Known Issue

Handoff does not work with an iOS 9 device that does not have a passcode set.

HealthKit

Known Issue

In rare circumstances, it is possible for the health database to be deleted during the upgrade to the beta.

Workaround: To make sure the health database is not lost, make an encrypted iTunes backup prior to installing this beta.

Although keeping the device unlocked for the duration of the upgrade process reduces the risk of the database being destroyed, it’s recommended that you create a backup so that you can recover the database if you encounter this issue.

HomeKit

Fixed in Beta 3

  • Accessories that support multiple communication paths to HomeKit may appear duplicated.

  • Location-based event triggers do not work in Simulator.

  • After using HomeKit accessories or developing with the HomeKit framework, backing up to iTunes will result in an unrestorable backup.

iCloud Backup

Fixed in Beta 3

If you have two-factor authentication enabled, signing into your iTunes account while restoring from an iCloud backup may get stuck sending your verification code.

Known Issue

In rare cases, restoring from an iCloud backup will not restore your applications.

Workaround: In Settings > General > Reset, choose Erase All Contents and Settings, and then re-attempt the restore.

iCloud Drive

Fixed in Beta 3

Tapping an iCloud Drive document in search results doesn't do anything.

Instant HotSpot

Fixed in Beta 3

Some devices crash on connection to Instant Hotspot.

Keyboards

Fixed in Beta 3

There are display issues with QuickType suggestions in share sheets.

Note

Russian, Turkish, and Korean QuickType keyboards require iOS 9 beta 2 or later.

Known Issue

If you use a complex passcode on an iPad, some panes in Settings will now show the keyboard.

Keychain

Fixed in Beta 3

Under certain circumstances, when enabling iCloud keychain on an OS X El Capitan or iOS 9 system using the iCloud Security Code, you may see “incorrect security code” or “could not set up iCloud keychain” even if you’ve entered the correct security code and SMS verification code.

Known Issues

  • You may be unable to join an existing iCloud Keychain circle using iCloud Security Code and SMS Verification Code.

    Workaround: Approve from another device.

  • After changing your iCloud password, you may see an “iCloud Keychain Reset” prompt.

    Workaround: Re-enable iCloud Keychain.

  • If you have two-step verification enabled on your AppleID and then change your iCloud Keychain or iCloud Security Code on a non-trusted device, you see a “Verification Failed” error.

    Workaround: Log out of iCloud, log back into the account, and enable iCloud Keychain.

  • If your iCloud account uses two-factor authentication, you will get a sign-in alert on all logged-in iOS 9 or OS X El Capitan devices whenever there is a change in the phone number in Settings > iCloud > Keychain > Advanced.

Localization

Fixed in Beta 3

For devices on which English is not the default language, some content may appear in English instead of the expected language.

Maps

Fixed in Beta 3

MapKit’s MKDirections do not get directions or ETA responses from MapKit in this beta.

Mail

Known Issue

A Yahoo mail account may periodically display “Cannot get mail.”

Messages

Known Issues

  • When recording audio messages, the audio glyphs are not shown. This occurs both in quick reply and in the Messages app.

  • When you send an audio message, it may be difficult to begin playback.

MetalKit

Known Issue

MTKMesh and MTKMeshBuffer objects initialize incorrectly in this beta, which limits the use of MetalKit with Model I/O.

Music

Fixed in Beta 3

The Radio tab is not available in the Music app.

Note

When users plug in headphones or connect to Bluetooth or CarPlay in their car, their favorite music app appears on the lock screen or the car display.

For your app to be eligible for this, it must publish to Now Playing upon launch and consistently maintain a Now Playing state. A common practice upon launch is to continue playing the track from when the app was last exited.

Known Issues

  • The share sheet may not appear when sharing tracks from Apple Music.

  • It may not be possible to Love an album or playlist.

  • The New tab may not load if you are not signed into Apple Music.

  • The Apple Music signup screen may not display correctly.

Networking

Note

When negotiating a TLS/SSL connection with Diffie-Hellman key exchange, iOS 9 requires a 1024-bit group or larger. These connections include:

  • Secure Web (HTTPS)

  • Enterprise Wi-Fi (802.1X)

  • Secure e-mail (IMAP, POP, SMTP)

  • Printing servers (IPPS)

Phone

Known Issues

  • Call history may be lost upon upgrade to this beta.

  • Voicemail may be unavailable after an erase install.

    Workaround: Reboot the device.

Photo Booth

Known Issue

Photos taken with Photo Booth are not saved.

Photos

Fixed in Beta 3

After restoring from iCloud backup, photos not stored in iCloud Photo Library fail to display thumbnails.

Podcasts

Fixed in Beta 3

If you change the media type of content in iTunes to "podcast episode," and then sync those podcasts, the Podcast app will crash on launch.

Safari

Notes

  • “Find on Page” is now available both from the share sheet as well as in the Completions List.

  • Request Desktop Site has moved; it’s now in the Share sheet instead of Favorites.

  • Web Browser–to–Native App Handoff does not work with your app if the apple-app-site-association file isn’t correctly formatted and signed. For more information, seeHandoff Programming Guide and Shared Web Credentials Reference.

Known Issue

If you use Autofill on iPad, passwords may not be automatically entered into login fields.

Workaround: Manually input the text. Your passwords can be found in Settings > Safari > Passwords.

Search

Fixed in Beta 3

  • Tapping a Mail message, Maps favorites, Note, or Message in search results does not open the app on some devices.

  • When submitting an activity to be searchable with NSUserActivity, the metadata (attributeSet) does not get added to the index. The title and keywords property are the only activity metadata added to the index.

Settings

Fixed in Beta 3

  • You may see a black screen when trying to add Google or Yahoo accounts.

  • CoreSpotlight items indexed with description don't display the description in Search.

Known Issues

Third-party app settings sometimes do not appear in Simulator.

Setup Assistant

Fixed in Beta 3

iForgot links don’t work in Setup Assistant.

Siri

Known Issue

Siri Eyes Free may not work in this beta.

SpriteKit

Fixed in Beta 3

containsNode: and containedNodeSet do not work in this beta.

Spotlight

Known Issues

  • Tapping a Mail message, Maps favorites, Note, or Message in search results does not open the app on some devices.

  • After upgrading to this beta, some contacts are not searchable in Spotlight.

Telephony

Known Issue

After purchasing a cellular data plan on an iPad, it may display an alert that indicates the plan has expired.

Workaround: Wait a few minutes, then toggle airplane mode.

UIKit

Fixed in Beta 3

UIModalPresentationPopover style doesn't update its barButtonItem anchor position when the window is resized.

Notes

  • In iOS 9, when layoutIfNeeded is sent to a view and all of the following conditions are satisfied (which is not common), we apply fitting-size constraints (width/height = 0 atUILayoutPriorityFittingSizeLevel) instead of required size constraints (width/height required to match current size):

    1. The receiver is not yet in the subtree of a view that hosts a layout engine, such as window, view controller view (unless you have settranslatesAutoresizingMaskIntoConstraints to NOfalse on that view—or created constraints that have one item in its subtree and one item outside it), table view cell content view, and so on.

    2. The final ancestor (that is, top-level view) of the receiver has translatesAutoresizingMaskIntoConstraints set to NOfalse.

    3. The top-level view has a subview that is not a UIViewController-owned layout guide that also has translatesAutoresizingMaskIntoConstraints set to NOfalse.

    Under condition 1, we create a temporary layout engine from the top-level view and add all the constraints from the subtree to it. The problem is that we need to add some constraints that make the size of the top-level view unambiguous in the layout engine. The old behavior (prior to iOS 9) was that we would add constraints to restrict the size of the top-level view to its current bounds for any situation under condition 1. This really doesn’t make sense when you add conditions 2 & 3 and can result in unsatisfiable-constraints logging and broken layout.

    So on iOS 9, for this special case only, we use fitting-size constraints instead.

    This means that if you are sending layoutIfNeeded to a view under these conditions on iOS 9, you must be sure that either you have sufficient constraints to establish a size for the top-level view (which usually, though not always, is the receiver) or you must add temporary size constraints to the top-level view of layout size you desire before sendinglayoutIfNeeded, and remove them afterward.

  • For apps linked on iOS 9 or later, UITextView will now always correctly constrict its NSTextContainer to the fit inside the view when scrolling is disabled. Overflowing lines that lie outside of an NSTextContainer, even partially, are not rendered.

    In previous iOS releases, the NSTextContainer sometimes was not constricted in size. This meant that logically overflowing lines were erroneously rendered. If you are seeing previously rendered lines at the end of your text view no longer rendered after linking your app against iOS 9, this behavior change is the likely cause. You can remedy this by making your UITextView larger, or perhaps by adjusting the bottom value of the text view's textContainerInset property.

  • There is a redesigned UI for printing that includes a print preview (presented from UIPrintInteractionController or UIActivityViewController). For apps that provide printing items or use only built-in UIPrintFormatter objects (such as UISimpleTextPrintFormatter, UIMarkupTextPrintFormatter, UIWebViewPrintFormatter, or theUIViewPrintFormatter of any system-provided view), nothing additional is needed for the print preview to display.

    Apps that subclass UIPrintPageRenderer or UIPrintFormatter to draw content for printing must be built with the iOS 9 SDK for the preview to display. The behavior ofUIPrintPageRenderer has been updated to call drawPageAtIndex:inRect: multiple times with potentially different page sizes and margins. Various methods onUIPrintPageRenderer may be called from a non-main thread, but never from multiple threads concurrently.

  • UIPickerView and UIDatePicker are now resizable and adaptive—previously, these views would enforce a default size even if you attempted to resize them. These views also now default to a width of 320 points on all devices, instead of to the device width on iPhone.

    Interfaces that rely on the old enforcement of the default size will likely look wrong when compiled for iOS 9. Any problems encountered can be resolved by fully constraining or sizing picker views to the desired size instead of relying on implicit behavior.

Watch App

Known Issues

  • Pairing iOS 9 beta 3 with watchOS 2 beta 1 or 2 requires you to sign out of your AppleID in Messages prior to pairing and to skip iCloud sign-in during pairing. Pairing with watchOS 2 beta 3 and watchOS 1 is not impacted.

  • Tapping Cancel does not work in the iForgot work flows in Watch Setup Assistant.

Webkit

Note

The if-domain and unless-domain value strings only match the exact domain. To match the domain and any subdomains, begin the string with the asterisk character (*).

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