Apple has released iOS 11 developer beta 4 for developers on iPhone, iPad, and iPod touch. iOS 11 brings new features like drag-and-drop and a redesigned multitasking interface for iPad, a new customizable Control Center, and much more.

Changes below:

iOS 11 beta 4 is currently only available to registered developers for now. Apple typically holds new public beta versions for a few days for major updates.

Apple’s previous iOS 11 beta introduced refinements to Notification Center, changes to multitasking on iPad, new TV Provider placeholder listings, and other minor tweaks. As we approach the final release this fall, we expect more refinements ahead of the last few beta versions.

For a comprehensive look at everything new in iOS 11 so far, check out our hands-on video below:

We’ll update below with any changes discovered in the latest iOS 11 beta.

What’s new:

iOS 11 Beta 4’s Release Notes:

Notes and Known Issues

General

New Features

AddedAVRoutePickerViewtotheAVKitframeworkandAVRouteDetectortothe AVFoundation framework for enabling users to choose the route for playing content when multiple routes are available. Use AVRouteDetector to determine if multiple routes are available when route detection is enabled. If multiple routes are available, use AVRoutePickerView to present an interface for the user to choose the routes.

Known Issues

• To revert an earlier iOS, follow the instructions shown on the apple support site: https://

support.apple.com/kb/HT203282.

32-bit Apps

Resolved Issues

Selecting Learn More from the prompt after tapping an already installed 32-bit app now opens the Settings App. (32340711)

Syncing 32-bit apps via iTunes now behaves as expected. (32356790)Known Issues• iOS apps may target iOS 10 or earlier to continue including a 32-bit slice. (31597913)Deprecations• 32-bit apps will not run on future betas of iOS 11. (26402174)3D TouchResolved Issues• Using 3D Touch with data detectors (phone numbers, addresses, and so on) now works correctly. (30504832)3rd Party AppsResolved Issues• Airplay now works as expected in third-party apps. (32819077) • KakaoTalk no longer crashes on launch or after typing. (32320793) • SlingTV now plays back audio and video as expected. (32649488) • Kindle books now sync as expected. (30878446) • Facebook Messenger now launches when the Facebook app is not installed. • The video playback controls in Amazon Video should now work correctly. (32056010) • Navigation bars should now look correct. (32076094) • Tencent Video should no longer crash on launch. (32343324)

Third-party keyboards should now work if not allowed full access. (32494032)

The audio should no longer drop during Skype calls. (32434672)

VSCO no longer displays an error when importing photos that have been recently taken. (32582234)

Citi Mobile no longer crashes on launch. (31336493)

Users can now log in to Pinterest using their email address. (31866166)

Known Issues

DirectTV may crash on launch. (29533442)

MobileIron Mobile@Work may crash on launch. (31929650)

Tweetbot may not be able to post tweets containing photos that have been recently taken. (32569113)

Square Cash may crash on or shortly after launch. (30926902)AirPlayNew Issues

• Tapping the AirPlay button in videos that are not full screen causes some apps to crash. The affected apps include iBooks, Safari, Voice Memos, and some 3rd party apps. (33331364)

Workaround: View the video fullscreen, and then tap on the AirPlay button. Android Migration

Resolved Issues

• Migrating from your Android phone now works correctly. (31816854)

App Analytics

Resolved Issues

• Non product page view impressions are now captured correctly. (31561060)

App Icons

Resolved Issues

After restoring a device from an iTunes backup, app icons on the Home screen no longer appear white. (32303701)

The prompt that appears while changing an icon now displays the alternative app icon image instead of a placeholder. (32165847)App StoreResolved Issues

After restoring from an iTunes backup, previously offloaded apps now appear on the Home screen. (31968368)

Promoted in-app purchases now use the developer-specified sort order. (30877083)

Attempting to run TestFlight without an active AppStore Apple ID no longer results in a login failure. (32230818)

Apps over 100 MB should no longer download over Cellular connection after acknowledging the warning prompt. (32235051)

Known Issues

Restoring from an iTunes backup containing an offloaded app which is also present in the iTunes library installs the offloaded app and then re-installs it from the App Store. This can result in the restored backup taking more space on your device than the size of the backup. (31461664)Workaround: After the restore completes, offload the app.

Launching the App Store stops other audio. (32043325)Apple IDResolved Issues• Accounts using a phone number as the Apple ID are now able to create an Apple ID for a child family member. (32130392)Known Issues• Some accounts using a phone number as the Apple ID may be unable to add certain payment types. (31677442)Apple PayResolved Issues• ApplePaySession.canMakePaymentsWithActiveCard no longer returns false when the merchant identifier is valid and appropriate payment methods are available. (32613797)ARKitKnown Issues• ContinuingfromabreakpointwhiledebugginganARSessionmayresultinVIObreaking. Any visual objects placed in the world/anchor are not visible. (31561202) AVFoundation Resolved Issues

ThevaluesofthelensDistortionLookupTableand inverseLensDistortionLookupTable properties of AVCameraCalibrationData are now centered properly. The 0 value represents no elongation or shrinkage. (32339695)

TheCGImageRepresentationandpreviewCGImageRepresentationmethodsof AVCapturePhoto now return the correct values. For more information, see the documentation. (31392054)

• AVCapturePhoto now returns the correct result when accessing the fileDataRepresentation property of an uncompressed buffer (420f/420v/BGRA), instead of a TIFF file format representation. (31902960)

Known Issues

ThecameraCalibrationDatapropertyofAVCapturePhotoreturnsnilwhen cameraCalibrationDataDeliveryEnabled is set to true, unless you also set depthDataDeliveryEnabled to true. In a future beta, you’ll be able to request dual photo capture and camera calibration data capture and receive wide and telephoto buffers plus the camera calibration data for both (without being zoomed to 2x and delivering depth data to the photo). (32209427)

Still capture requests fail and the video stream stops producing a buffer when using the 720p30 video format with the depthDataDeliveryEnabled property of AVCapturePhotoSettings set to true. (32060882)

Depthvaluesinthenondefault160x120and160x90depthdataformatsarehalfofthe expected values, and disparity values are twice the expected value. (32363942)BluetoothResolved Issues

Connection issues for Bluetooth accessories using Wireless iAP protocol are now more reliable. (31439542)

Beta 2 adds full functionality for the LE L2CAP channel feature. (32493297)CalendarResolved Issues• Buttons for Day, Week, Month, and Year now trigger on the first tap. (31883496)Known Issues• Dragging an item into Calendar may cause the application to crash. (33039833)CarPlayResolved Issues• Users should no longer get an error message when selecting Don’t Reply after reading a message in CarPlay. (32099700)CloudKitKnown Issues• CloudKit does not support unsigned long long values with the high-order bit set. (30567424)

• ApplicationsthatuseCKModifyRecordsOperationshouldspecifyanappropriate value for CKModifyRecordsOperation.isAtomic. If your client is compiled against watchOS 4, operations enqueued against the default CKRecordZone have new behavior because atomic is true by default. If the operation hits a “preflight” failure (most commonly, a network issue uploading a CKAsset, or a malformed CKRecord), the entire operation is canceled. (30838858)

Connectivity

Resolved Issues

Connecting to a cellular network after restarting or powering on a device now works correctly. (32727321)

Activating a Sprint Cellular data plan on iPad now works correctly. (32600925)

Reader mode utilizing NFC now works correctly on supported devices. (32721033)Known Issues• iPad prepaid data plan purchases made on the device may fail on a cellular connection.Workaround: Purchase the data plan while connected to Wi-Fi. Control CenterNew Features• Tapping the Wi-Fi button in Control Center now disconnects from the current network and temporarily disables Wi-Fi networking. (32299242)Resolved Issues

The expanded Wi-Fi UI in Control Center now updates the network name when transitioning between networks. (32280116)

The Bluetooth button behavior in Control Center now mirrors that of the Wi-Fi control. (32300000)Core SpotlightResolved Issues• Indexer file dragging no longer fails for both package file types or for files whose URL doesn’t have a matching absoluteString and path. (32354867)Do Not DisturbResolved Issues• Do Not Disturb While Driving is enabled starting with beta 2. (32232545)EventKitKnown Issues• Storing data to a non default event store in EventKit may not work. (31335830)

FaceTime

New Issues

• FaceTime Live Photos is disabled by default on most devices. (33322822)

Workaround: In the Settings app, navigate to FaceTime > FaceTime Live Photos and enable the feature manually.

Family Sharing

Known Issues

If payment verification is required, Family setup may not launch after the purchase of an Apple Music family membership. (32056496)Workaround: Invite family members from Family Sharing settings.

Pending invitations may not show in Family Sharing settings. Family members will appearonce they accept their invitations. (32602074)

After sharing iCloud storage with family members, the confirmation screen may not close. (32458127)

Sharing your location with family members may not turn on location sharing. (32746961)Workaround: Share your location from Family Sharing settings.

When creating an Apple ID for a child, the Terms & Conditions acceptance screen may freeze even though the Apple ID has been created. To use Settings, force quit and then open the app. (32365952)Files AppResolved Issues

The Files app can now display a QuickLook for an iWork document. (32353448)

Quicklook thumbnails provided by QuickLook thumbnail extensions for custom UTI types now show the appropriate thumbnail. (32354934)

VoiceOver now interacts correctly with Done, List, and Share buttons when VoiceOver is enabled and a user opens any document in the Recents tab. (32362561)FoundationResolved Issues

Reads and writes on a secure connection that uses the new authenticating HTTPS proxy feature of URLSessionStreamTask now work correctly. (31916868)

ThefractionCompletedpropertyoftheProgressobjectreturnedby NSItemProvider now advances in proportion to the data provider’s progress. (32385051)

Known Issues

Topreservebackwardscompatibility,iOS11beta3removedtheNSURLSessionempty string behavior for suppressing the sending of HTTP headers that was introduced in beta 2. (32959604)

IniOS11beta2andlater,NSURLSessionandNSURLConnectionmaynottoload URLs if the system is configured with certain PAC files. PAC files are JavaScript files that specify the HTTP proxies used for accessing the Internet, and are configured in Settings > Wi-Fi. (32883776)Workaround: Set “HTTP Proxy: Configure Proxy” to “Off” for Wi-Fi network.

ThesuggestedNamepropertyofNSItemProviderisnotusedwhenanNSData representation is requested as an open-in-place file. Instead, a temporary file name is used. (32342544)

ThevisibilityparameterinNSItemProviderisnotenforced.Allrepresentations are visible to all processes. (32233127)

SupportforusingtheStringandURLtypeswithNSItemProviderisabsentinthis beta. (32138540)Workaround: Substitute String and URL with a different type.

preferredPresentationSize is not available in this beta. (32501502)HapticsResolved Issues• Performing a forced refresh on iPhone 7 and iPhone 7 Plus no longer results in an unexpected pop or sound. (32635793)HealthKitResolved Issues• Attempting to finish a workout route when no location data is inserted no longer throws an exception. (32307523)HomeKitResolved Issues

Siri now recognizes a HomeKit setup in devices upgraded to iOS 11 beta. (32338077)

When multiple home hubs are configured, reading from or writing to Bluetooth accessories now works correctly. (32578105)iBooksResolved Issues

Dropping PDFs and books into iBooks now works correctly. (32328715)

Audiobooks now appear in the library after purchasing or after downloading again. (32150156)

After deleting a book purchased from the store, subsequent download attempts now work as expected. (32775084)

iBooks will no longer freeze when adding or removing a bookmark in a PDF document. (32625432)iCloudResolved Issues

After restoring from an iTunes backup, users are now able to authenticate iCloud credentials during setup. (32721872)

When restoring from iCloud Backup in Setup Assistant, you should now see the correct list of backups. (31739878)

Some services should now sync correctly on initial iCloud login. (32407057)

Device Enrollment Program iPads now support iCloud backups. (32027587)iTunesResolved Issues• When installing the beta, users with separate iTunes and iCloud accounts are no longer logged out from their iTunes account. (32228993)Known Issues• In some cases when restoring from an iTunes backup, app icons and names may be missing until app sync and installation is complete. (32543667)KeyboardsNew Features• Added a new Arabic keyboard for the Najdi dialect. (29187663)Resolved Issues• Changes to the keyboard state such as changing the keyboard type from one-handed to emoji, now persist. (33092873)Managed Devices Resolved Issues

Apps installed by MDM are no longer stuck in waiting after restoring from a backup. (32267165)

Unenrolled Managed Devices no longer reinstall MDM apps upon restore. (32387929)MapsResolved Issues• Siri is now able to get directions with Maps when Do Not Disturb While Driving is active. (32273986)

Media

Resolved Issues

When a user revokes an application’s access to Media & Apple Music in Settings > Privacy > Media & Apple Music, the Music User Token now behaves correctly. (31932361)

Elapsed time is now updated when touching play or pause, or when seeking during video content playback. (32065281)

Song metadata now syncs correctly with iTunes. This includes play counts, skip counts, and associated timestamps. Smart Playlists that use these criteria, such as Recently Played, do not update. This does not affect Star Ratings or Love/Dislike. (31488141)

In Podcasts, selecting a station with multiple episodes may navigate to a blank screen. (32320460)Known Issues• SettingthenowPlayerItempropertyofMPMusicPlayerControllerdoesnotwork. (32258814)Deprecations

• requestPersonalizationTokenForClientToken is deprecated in iOS 11. Use getUserTokenFromDeveloperToken instead. In the current build, requestPersonalizationTokenForClientToken returns an error. In a future build, it will return valid music user tokens without requiring a change to your app. (32065560)

Messages

Resolved Issues

When testing the new Message Filter app extension feature, if the first incoming message from an unknown recipient is marked as spam by the extension, they are now delivered to the user. (31986503)

Messages on iCloud should now be available after a device has been offline. (32224851)Known Issues

AttemptingtoinsertanMSMessageusingMFMessageComposeViewController results in a compose window with a blank staging area. (32087732)

ThelocalParticipantIdentifierandselectedMessagepropertiesarenilfor an MSMessage of style MSMessageLiveLayout when inserted into the transcript. (31374415)MetalNew Features• Added the BGR10A2 pixel format to Metal in beta 2.

Music app

Resolved Issues

• Notifications should now function as expected. (32463538)

Known Issues

• Turning off “Show in my Profile” for a playlist may still show the playlist name and artwork in your profile. (32560995)

Networking

New Features

• Added the Multipath Networking switch to Developer Settings to enable testing of multipathServiceType. Enabling Multipath Networking disables reducing cellular data usage for Wi-Fi Assist and allows experimenting with the multipath aggregation mode. (32927263)

Known Issues

• Wi-Fi password sharing and Personal Hotspot sharing on beta 2 and later don’t work with devices that are running beta 1. (32500217)

Notes

Known Issues

If a user restores from a backup in which the Notes app is deleted, the app may not work properly after being re installed. (32499971)

Under some circumstances, rotating an iOS device may cause Apple Pencil to become unusable. (32020094)On Demand ResourcesResolved Issues• When debugging On Demand Resources, if the target is configured to use asset packs embedded in the Product Bundle, the assets are now found. (32437929)PhoneNew Issues• The call history list in the Recents tab does not update immediately, which can result in the second number in the list being dialed when the the first number in the list is selected. Saved contacts are not affected by this issue. (33094744)Resolved Issues

Phone app should no longer crash when a voicemail message is deleted. (32394726)

For certain carriers in certain geographies, some services, such as Voicemail, Messaging, Call Wait, Call Forwarding, and so on, on Wi-Fi calling-enabled devices now work correctly. (32433588)

An SOS notification is no longer be sent when canceled. (32413903)

Photos

Resolved Issues

Portrait images no longer change when entering Edit mode. (31889782)

Editing a photo in Simulator now works correctly. (32298353)

Thumbnails in the Photos import view and Image Capture app should now appear correctly. (32318758)

RAW+JPG photos imported using the camera connection kit are now imported in the correct format. (32260701)

Creating a new Photos or Kaleidoscope Watch Face from the Create Watch face share option in Photos no longer exits unexpectedly. (32011772)

AirDrop sharing of Live Photos no longer results in an error when importing to Photos. (31971874)

Photos captured on iOS 11 now show the correct orientation on versions of macOS earlier than 10.13. (32311412)Known Issues• Some third-party apps may not fully support HEVC and HEIF. (30292869)PopoverResolved Issues

Immediately pressing Home from a popover-enabled app should no longer cause touch to become unresponsive. (32435759)

Launching a popover-enabled app from the Dock no longer flashes the popover or the Dock during the launch animation. (32429615)Quick LookResolved Issues

• QuickLookthumbnailextensionscannowaccessthefileURLparameterof QLFileThumbnailRequest inside the provideThumbnailForFileRequest:completionHandler method of the QLThumbnailProvider protocol. (32354934)

Safari

New Features

• iOS 11 adds a new sync system for your Safari Bookmarks and Reading List to provide better syncing and security. Migration to the new sync system occurs silently after all the devices signed in to your iCloud account are running iOS 11. (22936727)

Resolved Issues

• In beta 2 and earlier, Safari Content Blockers may not have blocked content as expected.

Workaround: If a Content Blocker is not working as expected, in Settings > Safari, toggle the state of the Content Blocker.

Routing audio to the speakerphone using WebRTC it is now works correctly. (32059254)

Opening a link in Safari no longer results in a loop where Safari and another app repeatedly open each other. (32518579)

SafariViewController no longer goes blank when opening multiple tabs. (32337105)

The temporary increase in the amount of memory used to load Safari Content Blocker in beta 3 is removed in beta 4. (32330531)SafariServicesNew Features

SFSafariViewController adds improved UI for 3D Touch previews by collapsing the toolbars to show just the domain and by adding default preview actions. (27222648)

Added SFAuthenticationSession, a new API used to authenticate a user with a web service. Use the url parameter of the init method to specify a URL for an authentication webpage. SFAuthenticationSession then authenticates the user and calls the provided completion handler with either a callback URL containing an authentication token, or with an error. (32433374)

CustomUIActivityitemsaddedtoSFSafariViewControllerarenowshownnear the front of the UIActivityViewController by default. A user can still change the order of the activities to fit their preference. (32661540)SecurityNew Issues

• Starting in iOS 11, macOS 10.13, tvOS 11, and watchOS 4, TLS 1.2 ciphersuites defined in RFC 5246 will only be allowed with TLS version 1.2. RFC 5246 ciphersuites are disallowed in prior versions of TLS. For example, the TLS_RSA_WITH_AES_256_CBC_SHA256 ciphersuite is not allowed when negotiating TLS 1.0. (33140907)

Settings

New Issues

• Cellular data for music downloads may be included in Wi-Fi Services instead of in iTunes Accounts in the Cellular > System Services panel of the Settings app. (32353045)

Resolved Issues

The Settings app no longer crashes when adding or deleting keyboards. (32716997)

The Settings app no longer crashes when deleting Podcasts from device storage. (32408313)

First-time installation of profiles now works as expected. (32249534)

The Offload App feature now works for apps that are shipped with the OS. (32283120)

Personal hotspot data usage is now included in the cellular data usage UI when the device acts as the host on T-Mobile US devices. (32262043)

Storage graph and size information in Settings now updates correctly. (32295963)Known Issues• Social accounts have been removed from Settings in iOS 11. Third-party apps no longer have access to those signed-in accounts. (31687059)Setup AssistantKnown Issues• Sync on Reset and Guide User to Backup show a progress bar that appears to stop at 90% even though the data sync has complete successfully. (32715751)SiriNew Features

Added new voices for both genders of Brazilian Portuguese, Canadian French, Dutch, and Swedish. Added new female voices for English and Mexican Spanish, and upgraded the voice for both genders of Japanese and Chinese. (32221950)

Added support for translation requests from English US to Chinese, Spanish, German, French, and Italian. (32221937)New Issues

On Chinese networks, Siri does not disambiguate between the three available emergency numbers before dialing. (31805684)

General Knowledge and Wikipedia queries in languages other than English (United States) may result in a variety of UI and layout issues. (33404897)Resolved Issues

Siri UI now dismisses automatically from the screen while using Messages with CarPlay. (32428580)

Siri results for Weather, Stocks, and Movies queries are now legible. (32327773)

Switching Siri’s voice from the Settings screen no longer plays a different voice from the default voice. (32332081)

The Lists & Notes domain implementation for non-English languages should now work in the same way as US English. (30457023)

Siri no longer hangs or times-out if the Home button is held for the duration of the spoken request. (33086511)

While sending messages with Siri in CarPlay, pressing the “Send” button on the screen no longer results in the error, “Uh oh, there was a problem.” (33160022)Known Issues• SiriKit commands for Notebook that are in Finnish do not work correctly if the commands are broken into more than one utterance. (32272318)

Siri may use information from previous requests when completing the current request, even if Siri was closed between the requests. (33148434)Workaround: To begin a new request use the “Start over” Siri command.

Using Siri to correct the spelling of a transcribed request may result in an error.Workaround: Tap the misspelled word and correct it using the on-screen keyboard.

Weather snippets currently show a sash icon from the iOS Weather app. The snippet should show the icon for The Weather Channel. It is also missing an attribution that opens The Weather Channel app. (31429437)

Users may encounter disambiguation issues while using Siri for Phone and Messages. (32477407)

Using Siri to disambiguate between multiple phone numbers for a contact sometimes does not work. (32591639)Workaround: Tap a selection in the UI. SiriKitResolved Issues

Siri no longer loops when using SiriKit Notes queries to mark a reminder. (32398834)

When a user verbally tries to disambiguate between two or more SiriKit apps in a disambiguation list, Siri now prompts for more details before opening an app. (32188589)

SiriKit testing now works in Simulator. (32721342)

If the user does not mention the app name in the initial utterance, tapping the app in the disambiguation no longer launches the app instead of other possible Siri actions. (32361047)

INImage objects constructed with URLs or image names now display correctly in the Siri UI. (31585381)Touch IDNew Issues• Touch ID does not work correctly with LocalAuthentication.framework in the iOS 11 Simulator Runtime. (33355624)Workaround: Test Touch ID functionality on-device or with an older runtime. UIKitResolved Issues

SettingthedelaysContentTouchespropertyofUITableViewtofalsenowworks correctly and results in cells highlighting immediately on a touchdown event. (27102830)

ImportingadocumentusingUIDocumentPickerViewControllernowreturnsa copy of the document. (32358695)

In drag and drop, move operations are supported only when the drag and the drop both happen within the same app. Starting in beta 2, the value of UIDropSession.allowsMoveOperation is set to false. (32416557)

TheviewargumentofthelocationInView:methodofUIDragSessionand UIDropSession is no longer nullable. The declaration of the method has changed to location(in view: UIView). (31714683)Known Issues

UIDocumentBrowserViewController does not show UIDocumentPickerExtensionViewController app extensions in the list of sources. While these will be re enabled in a future beta, consider using an NSFileProviderExtension instead, as they are integrated in UIDocumentBrowserViewController instead of being presented in a separate sheet. (31975976)

SettingthetextContentTypetousernameorpasswordforUITextFieldinthe previewProvider property of UIDragItem is not fully implemented. During the drag session, each change to the previewProvider causes an immediate update, regardless of which app changed it. In addition, clearing the previewProvider does not cause the preview to go back to its non-overridden state. (30385458)

SettingthepreviewProviderpropertyofUIDragItemimmediatelyafterthedrag item is created has no effect. (32284908)Workarounds:Implement dragInteraction:previewForLiftingItem:session: in your drag interaction’s delegate to change the lift preview. The preview carries over to the drag session.Change the preview during the drag session by setting previewProvider after the delegate’s sessionWillBegin is called. If you are using UITableView or UICollectionView, there is no direct equivalent of that method, so you may use a delay instead.

ThecanLoadObjectsOfClasses:methodofUIDragDropSessionwillberemoved in a later seed. Use canLoadObjectOfClass: instead. (32242367)

When dragging more than five items, the drop/cancel animation uses a default animation. The system calls the dropping/canceling preview calls for the first five of these items, even though they are not used. In a later beta, the system will not make these calls, and instead provides an additional API for animating alongside items for which a custom animation cannot be applied. (32299785)

DonotusetheclassUIURLDragPreviewViewbecausewillberemovedinalaterbeta. To make drag previews of URLs, use UIDragPreview and UITargetedDragPreview. (32306613)

Table views in Interface Builder documents compiled with Xcode 9.0 may have fixed heights for rows, section headers, and section footers, and may not self-size by default. (32188814)

Workaround: Set the table view rowHeight, sectionHeaderHeight, or sectionFooterHeight to UITableViewAutomaticDimension after the table view has been instantiated.

UITableView has a new system gesture for quickly selecting rows. A two-finger tap on table views that support multiple selection sets the table view to editing, if it is not already, and selects the tapped row. Unlike a single-finger tap, which toggles selection, the two- finger tap always selects the tapped row and has no effect if the row is already selected. This new gesture is enabled only in apps built for iOS 11. (29127664)

UITableView has a new property, separatorInsetReference, that changes how a custom value set in the separatorInset property is interpreted. By default, the value is .fromCellEdges, which means that custom separatorInset values are always interpreted as an inset from the edges of the cell, even in cases where table view would normally use larger automatic insets for the separator, such as a very wide table view when the cellLayoutMarginsFollowReadableWidth property is true.Set the separatorInsetReference to .fromAutomaticInsets to use the separatorInset as a fixed distance from the automatic inset that a table view would normally use.Note that you can always use UITableViewAutomaticDimension for any edge of the separatorInset that you set, to receive the automatic inset on that edge. (31000402)

Table views now use estimated heights by default, which also means that cells and section header/footer views now self-size by default. The default value of the estimatedRowHeight, estimatedSectionHeaderHeight, and estimatedSectionFooterHeight properties is now UITableViewAutomaticDimension, which means the table view selects an estimated height to use. You should still provide a more accurate estimate for each property if possible, which is your best guess of the average value of the actual heights. If you have existing table view code that behaves differently when you build your app with the iOS 11 SDK, and you don’t want to adopt self-sizing, you can restore the previous behavior by disabling estimated heights by setting a value of zero for each estimated height property. (30197915)

AddingcustomsubviewsdirectlytoUITableViewisnotsupportedandmightbreakina future iOS release. (29094519)

The behavior of the delete swipe action has been changed.When implementing commitEditingStyle: to delete a swiped row, delete the row in the data source and call deleteRowsAtIndexPaths: on the table view to show the swipe delete animation. Not calling deleteRowsAtIndexPaths inside of this method results in the swiped row resetting to its resting position. Do not display a confirmation dialog in the implementation of this method, and support undo to allow canceling a deletion. To show a confirmation dialog, use a UIContextualAction instead (described next).

When implementing a destructive UIContextualAction, delete the row in the data source and call the completion handler with true. Do not call deleteRowsAtIndexPaths: in this case. If the deletion fails, call the completion false to cancel the deletion. Although it should generally be avoided, you can show a confirmation dialog to confirm the deletion, and then call the completion handler with true if the user confirms (after deleting the row from its data source), or with false if the user cancels. It is also advised to disable performsFirstActionWithFullSwipe on the UISwipeActionsConfiguration in this case. Note that the completion handler must be called in all cases. (31588888)

When the user selects one of the Accessibility Larger Text content sizes as their preferred content size, UITableViewCell uses a new default layout that is optimized for the larger sizes. The numberOfLines property of UITableViewCell labels (both textLabel and detailTextLabel) changes to 0 (unlimited) by default when the Accessibility content sizes are in use. You may override this by explicitly setting the numberOfLines property. The standard image view and accessory views are aligned with the first line of text in the cell, and cell text wraps around the image in order to maximize the amount of text displayed per line. For the Value1, Value2, and Subtitle styles, the detailTextLabel is arranged underneath the standard textLabel. For UISwitch accessory views, the switch is located below the labels and aligned with the leading edge of the text. Because of these changes, which increase the height of the cell content at Accessibility content sizes, it’s important to use self-sizing cells to ensure that the row height increases as necessary, and to avoid using a fixed row height for all content sizes. (28102750)

TheimageNamed:inBundle:compatibleWithTraitCollection:classmethod of UIImage now properly infers the UIDisplayGamut trait if it is not explicitly provided.If you are deploying to earlier versions of iOS, to provide the UIDisplayGamut trait in the trait collection, you pass to imageNamed:inBundle:compatibleWithTraitCollection:. You can obtain the correct value of this trait from the window or view that will display the image. Failing to provide the value can result in images failing to load on devices with P3 displays if the sRGB renditions of those images had been thinned out of the asset catalog. (29915518)

UINavigationItem.searchController appears only for view controllers that use a UIScrollView. (32511772)Workaround: Set UINavigationItem.hidesSearchBarWhenScrolling to false.

By default, UIKit logging occurs only when unsatisfiable constraints are detected. Use the UIConstraintBasedLayoutThrowExceptionOnUnsatisfiableConstraints launch argument to add an assertion for early detection of the problem. The launch argument works in iOS 11 and later. (28123998)

AUIViewthatmakesvisualchangesbothbyoverridingdrawRect:andbysettingthe layer contents may result in visual artifacts or other errors in iOS 11. Apps should use only one of the methods to make visual changes to a view. (31350188)

Vision

Resolved Issues

Vision now supports other Core ML feature vectors in addition to classifiers. iOS 11 beta 2 and earlier worked only with classifier models. (32944774)

TheRectangleTrackerAPIshouldshouldnolongerstoprespondingunexpectedly. (32332200)

The Vision API is now available from the macOS 10.13 and iOS 11 SDKs even if DEPLOYMENT_TARGET is set to a version earlier than the current OS.Known Issues• Facial landmarks identified by the Vision framework may flicker in temporal use cases such as video. (32406440)Deprecations

• The type of the orientation parameter in Vision framework calls has changed from an Int32 to an CGImagePropertyOrientation enum found in the ImageIO framework.

Important: Update your code with the new type to avoid compilation warnings or errors related to the change.

watchOS

Resolved Issues