With the release of the first iOS 11 developer beta last week at
WWDC 2017, Apple has begun rolling out the second
beta of iOS 11
. iOS 11 is the major upgrade for Apple and has included number
features and changes in it.
Apple fixes some bugs and improvements in iOS 11 beta 2 but there are some changes. 

Here’s a release notes of iOS 11 beta 2. Apple fixes some bugs and improvements in iOS 11 beta 2 but there are some changes.
Here’s a release notes of iOS 11 beta 2
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.
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)
Known Issues
• Syncing 32-bit apps via iTunes leaves a placeholder for the app.
(32356790)
• 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 Touch
Resolved Issues
• Using 3D Touch with data detectors (phone numbers, addresses,
and so on) now works correctly. (30504832)

3rd Party Apps
New Issues
  • Tweetbot may not be able to post tweets containing photos that
    have been recently taken. (32569113)
  • VSCO may throw an error when importing photos that have been
    recently taken. (32582234)
  • Square Cash may crash on or shortly after launch. (30926902)
  • Citi Mobile may crash on launch. (31336493)
  • Airplay may not work in some third-party apps. (32819077)
  • KakaoTalk may crash on launch or after typing. (32320793)
  • SlingTV may play back only the audio. (32649488)Resolved Issues•
    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)
Known Issues
• DirectTV may crash on launch. (29533442) • MobileIron
[email protected] may crash on launch. (31929650) • Users may be unable to log in to
Pinterest using their email address. (31866166)
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
Known Issues
  • After restoring a device from an iTunes backup, some app icons on
    the Home screen may appear white. Reboot the device to show the correct app
    icon. (32303701)
  • The prompt that appears while changing an icon displays a
    placeholder instead of the alternative app icon image. (32165847)App StoreNew
    Issues• Promoted in-app purchases do not use the developer-specified sort
    order. (30877083)Resolved Issues• Apps over 100 MB should no longer download
    over Cellular connection after acknowledging the warning prompt. (32235051)

Known Issues
  • Launching the App Store stops other audio. (32043325)
  • Attempting to run TestFlight without an active AppStore Apple ID
    results in a login failure. (32230818)
  • After restoring from an iTunes backup, previously offloaded apps
    do not appear on the Home screen, and must be manually downloaded from the App
    Store. User data for the app is not affected, and is present when app
    installation completes. (31968368)
  • After restoring from an iTunes backup, applications may get stuck
    in a waiting state. (32442832Apple IDNew Issues
  • Some accounts using a phone number as the Apple ID may be unable
    to add certain payment types. (31677442)
  • Accounts using a phone number as the Apple ID may not be able to
    create an Apple ID for a child family member. (32130392)Apple PayNew Issues•
    ApplePaySession.canMakePaymentsWithActiveCard returns false even 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)
  • ARSessionConfiguration is only supported on iOS devices with an A9
    or later processor and will be enabled for all iOS 11 devices in a future beta.
  • ARWorldTrackingSessionConfiguration is only supported on iOS
    devices with an A9 or later processor.AVFoundationResolved 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)CalendarNew Issues
  • Buttons for Day, Week, Month, and Year may not trigger on the
    first tap. Subsequent taps should function as expected. (31883496)
  • After reinstalling Calendar, the icon may be blank until the
    device is restarted. (31613835)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 4.0, 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
New 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.
  • Some devices may take up to 30 seconds to connect to a cellular
    network after restartingor powering on. (32727321)
  • To activate a Sprint Cellular data plan on iPad, open Settings and
    choose General > Reset > Subscriber Services, enter your password, and
    select Reprovision Account in the dialog that appears. (32600925)
  • Reader mode utilizing NFC may not function as expected on all
    devices. (32721033)Control CenterResolved 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)

EventKit
Known Issues
• Storing data to a non default event store in EventKit may not
work. (31335830)
Family Sharing
New 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
  • 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)Known Issues• The Files app may not be able to display a
    QuickLook for iWork documents. (32353448)FoundationNew Features
  • Added support for multipath TCP interactive and aggregate
    support.The multipathServiceType property of NSURLSessionConfiguration now
    supports the interactive as well as the aggregate mode on iOS. The interactive
    mode provides low latency for interactive flows. The aggregate mode increases
    the throughput by sending over both Wi-Fi and Cellular. The aggregate mode is
    available only for experimentation and can be enabled in the Developer settings.
    For more information, see the documentation. (32252152)
  • AddedaschedulingAPItoURLSessionTaskthatallowsbackgroundURLSession
    clients to schedule tasks in the future, enabling easy background app refresh
    semantics for apps, watchOS complications, and more. The API also allows
    developers to update requests before transmission to address cases where the
    request has become stale when scheduled in the future. Additions include the
    earliestBeginDate, countOfBytesClientExpectsToSend, and
    countOfBytesClientExpectsToReceive properties of URSessionTask, and the
    URLSession:task:willBeginDelayedRequest:completionHandler method of
    URLSessionTaskDelegate protocol. (27866330)
  • URLSessionTask adopts the ProgressReporting protocol providing a
    consistent mechanism for URLSession clients to track the progress of
    URLSessionTask using the new progress property. (30834550)
  • AddedanAdaptableConnectivityAPItoURLSessionthatenablestaskstoautomatically
    monitor and wait for satisfactory network connectivity, instead of immediately
    failing with an error when connectivity is unsatisfactory. Additions include
    the waitsForConnectivity property of URLSessionConfiguration and the
    URLSession:taskIsWaitingForConnectivity: method of the URLSessionTaskDelegate
    protocol.

• Added support for HTTP brotli content encoding to URLSession. By
default, HTTP requests contain a br value (in addition to gzip and deflate) for
the Accept-Encoding HTTP header, informing the web server that the user agent
supports brotli encoding. The web server can send an HTTP body with
Content-Encoding: br in the HTTP header to indicate that the content is
brotli-encoded. URLSession automatically decompresses the HTTP body data and
passes the decoded data back to the client in the same way it does for
Content-Encoding: gzip. For binary compatibility reasons, URLSession brotli
support is enabled only for apps built using the iOS 11 SDK. (27724985)
Resolved Issues
• Reads and writes on a secure connection that uses the new
authenticating HTTPS proxy feature of URLSessionStreamTask now work correctly.
(31916868)
Known Issues
  • ThefractionCompletedpropertyoftheProgressobjectreturnedby
    NSItemProvider does not advance in proportion to the data provider’s progress.
    (32385051)
  • 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)HapticsNew Issues• Performing a forced refresh on iPhone 7 and iPhone
    7 Plus may produce 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)
HomeKit
New Issues
• Siri may not recognize a HomeKit setup in devices upgraded to
iOS 11 beta. (32338077)
Workaround: Disable and then reenable the “Press for Siri” option
in the settings for Siri, or make a change to a Home, such as creating a room
or modifying an accessory name.
• When multiple home hubs are configured, there may be issues when
attempting to read from or write to Bluetooth accessories. (32578105)

iBooks
New Issues
  • After deleting a book purchased from the store, a subsequent
    attempt to download again may fail. (32775084)Workaround: Open the task
    switcher by double-tapping the Home button, and force quit iBooks. After
    relaunching iBooks, download the book from the Purchases list.
  • iBooks may freeze when adding or removing a bookmark in a PDF
    document. (32625432)Workaround: Open the task switcher by double-tapping the
    Home button, and the force quit iBooks and relaunch iBooks.Resolved Issues
  • Dropping PDFs and books into iBooks now works correctly.
    (32328715)
  • Audiobooks now appear in the library after purchasing or after
    downloading again. (32150156)iCloudNew Issues

• After restoring from an iTunes backup, some users may not be
able to authenticate their iCloud credentials during setup. (32721872)
Workaround: After competing setup, open Settings and choose iCloud
to complete authentication.
Resolved Issues
  • 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)Known Issues• Device Enrollment Program iPads do not support iCloud
    backups. (32027587)iTunesKnown Issues
• After installing the beta, users who were logged in to separate
iTunes and iCloud accounts may be logged out of their iTunes account and logged
in to the same account as iCloud. (32228993)
Workaround: Sign out of iTunes, and then sign back in with your
original iTunes account.

Managed Devices
Resolved Issues
• A user accepting a VPP invitation should now work correctly.
(31509239)
Known Issues
  • MDM communication may not work correctly after restoring from a
    backup. To avoid this, make sure to back up your device after a new MDM
    enrollment. (32206090)
  • For MDM devices, entering an incorrect Apple ID password the first
    time during an app installation causes subsequent attempts to fail. Use the MDM
    install command again to complete installation. (31870510)
  • MDM/VPP apps may become stuck in waiting. (32267165)
  • Unenrolled Managed Devices may re install MDM apps upon restore.
    (32387929)MediaResolved Issues
  • 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
  • When a user revokes an application’s access to Media & Apple
    Music in Settings > Privacy > Media & Apple Music, the Music User
    Token is not revoked and can still be used with MusicKit REST APIs. (31932361)
  • SettingthenowPlayerItempropertyofMPMusicPlayerControllerdoesnotwork.
    (32258814)
  • Music may not accept correctly entered iTunes Credentials. If this
    happens, sign in to your iTunes account via Settings before going back into
    Music. (31426701)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)Music appNew Issues• When connected to certain car head units, it may
    be possible to play back only the first track in the Music library.
    (31974455)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 Issues
• Wi-Fi password sharing and Personal Hotspot sharing on beta 2
don’t work with devices 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)

Phone
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)Known Issues• An SOS notification
    may be sent out even if the user cancels it. (32413903)PhotosResolved Issues
  • 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• Editing a photo
    in Simulator does not work. (32298353) • Portrait images may change slightly
    while in Edit mode. (31889782) • 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
  • SFSafariViewController has improved the UI for 3D Touch previews
    by collapsing the toolbars to show just the domain, and by adding default
    preview actions. (27222648)
  • 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)New Issues
  • When opening some links in Safari, it is possible to end up in a
    loop where Safari and another app repeatedly open each other.
    (32518579)Workaround: Press the home button and switch to another app to break
    out of the loop, and then force-quit Safari.
  • SafariViewController goes blank when opening multiple tabs.
    (32337105) Workaround: Move the client into the background and then into the
    foreground to returnthe view to the previous page.
  • When using WebRTC it may not be possible to route the audio to
    speakerphone. (32059254)Known Issues• The amount of memory used to load Safari
    Content Blocker rules has temporarily increased. This may cause your extension
    to exceed its memory limits. (32330531)Workaround: Use fewer Content Blocker
    rules until the memory issue is resolved. SettingsNew Issues• The Settings app
    may crash when adding or deleting keyboards. (32716997)

• The Settings app may crash when deleting Podcasts from device
storage. (32408313)
Resolved Issues
  • 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)
  • When installing a profile for the first time, there may be no
    response after tapping Install. (32249534)Workaround: Force-quit settings and
    then retry the profile installation.

Setup Assistant
New Issues
• There is a UI issue affecting Sync on Reset and the Guide User
to Backup feature. Users will see that the progress bar appears to stop at 90%
even though the data sync has complete successfully. (32715751)
Siri
New Features
• Added Hindi Dictation to iOS. Both English and Hindi words can
be spoken and recognized. Three keyboards (Hindi, Hindi transliteration,
Hinglish) are supported. The feature can be turned on by enabling the Hindi,
Hinglish, and Hindi – Transliteration keyboards in Settings > General >
Keyboards, and pressing the mic button on one of the newly added keyboards.
(28833099)
New Issues
  • Using Siri to disambiguate between multiple phone numbers for a
    contact sometimes does not work. (32591639)Workaround: Tap a selection in the
    UI.
  • When there are multiple contacts with the same first name and only
    the first name is used in a request to Siri to make a call, occasionally Siri
    places the call without disambiguating the contact. (32112055)Workaround:
    Include both the first and last name when requesting Siri to call a contact.
  • When there are multiple unread messages in CarPlay, the Read Again
    button doesn’tfunction until Siri has read all messages so Siri moves on to the
    next thread. (32620799)Workaround: Wait for Siri to read all messages before
    tapping Read Again.
  • Siri may confirm that a message has been sent even if it is not
    sent. (32836568)Resolved Issues
  • 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)Known Issues
  • 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)
  • 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)
  • Siri UI may not be dismissed automatically from the screen while
    using Messages with CarPlay. (32428580)
  • The spelling corrections feature provides users with the ability
    to correct Siri by spelling words when Siri makes mistakes recognizing speech.
    Spelling corrections can be triggered in the follow up utterances by phrases
    such as “It is spelled …”, “[No] I said/ meant Akane [spelled] A K A N E”.
    (28537116)SiriKitNew Issues
  • SiriKit testing doesn’t work in Simulator. (32721342)Workaround:
    Test SiriKit on a device.
  • Siri can go into an infinite loop when trying certain SiriKit
    Notes queries to mark areminder. (32398834)Workaround: The following queries
    work around the issue: • Mark the reminder with [App name]. • Mark a reminder
    as complete using [App name]. • Modify a reminder using [App name].• Modify a
    reminder with [App name].Resolved Issues
  • 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)Known Issues• When a user verbally tries to
    disambiguate between two or more SiriKit apps in a disambiguation list, Siri
    opens the app directly instead of asking for permission or for more details.
    (32188589)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
  • 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)watchOSNew Issues
  • Pairing an iPhone running a beta of iOS 11 and an Apple Watch
    running a version of watchOS earlier than 4.0 may fail. (32587160)Workaround:
    Attempt to pair the Apple Watch again.
  • In the Watch app, changes to Mail > Include Mail are not saved.
    (32553544)Resolved Issues
  • On an Apple Watch running a version of watchOS earlier than 4.0,
    location activity now correctly sets the location arrow in the status bar or in
    Settings. (31496053)
  • watchOS email alerts now use the configured settings. (32332614)

What’s new in iOS 11 beta 2
  • New orange color seen in Messages Echo effect
  • New search options within Apple Music
  • External locations are now seen in Files
  • Do Not Disturb While Driving is enabled in beta 2
  • You can now select multiple items in Photos

Apple has announced that iOS 11 is likely to be available for
public betas in July at beta.apple.com and
will be officially released in this fall.
If you want to give it a try, follow this guide to installiOS 11 beta 2 on iPhone-iPad without developer account.
See More Here: