Apple Releases Fifth Beta of macOS Catalina 10.15 (19A526h) Beta 5

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macOS Catalina 10.15 (19A526h) Beta 5

Today Apple released macOS Catalina 10.15 (19A526h) Beta 5 to Developers.

MacOS Catalina 10.15 (19A526h) Beta 5 was released today July 31st, 2019 at 12:00 CST. I went through both Beta 4 and the new Beta 5 release notes to find all the changes. Like usual, I also have included the entire patch notes list as an archive. When Apple releases the Beta 6 patch notes, the previous patch notes are overwritten and taken down.

Summary of Beta 5 Patch Notes

  • 31 New Deprecations
  • 29 New Features
  • 38 New Known Issues
  • 11 New Resolved issues

1. New Deprecations in Beta 5

  • General – macOS frameworks are now thinned for the x86-64 architecture. Apps that execute i386 code now fail with the EBADARCH error code. The remaining stub frameworks are nonfunctional and exist only for compatibility purposes. (51236070)
  • Audio – The OpenAL framework is deprecated and remains present for compatibility purposes. Transition to AVAudioEngine for spatial audio functionality.
  • Audio – AUGraph is deprecated in favor of AVAudioEngine.
  • Audio – Inter-App audio is deprecated. Use Audio Units for this functionality.
  • Audio – Carbon component-based Audio Units are deprecated and support will be removed in a future release.
  • Audio – Legacy Core Audio HAL audio hardware plug-ins are no longer supported. Use Audio Server plug-ins for audio drivers.
  • AVFoundations – The previously deprecated 32-bit QuickTime framework is no longer available in macOS 10.15.
  • AVFoundations – The symbols for QTKit, which relied on the QuickTime framework, are still present but the classes are non-functional.
  • EndpointSecurity – The kauth API will be removed in a future release. (50419013)
  • Networking – Support for FTP and File URL schemes for Proxy Automatic Configuration (PAC) is removed. HTTP and HTTPS are the only supported URL schemes for PAC. This affects all PAC configurations including but not limited to configurations set using Settings, System Preferences, profiles, URLSession APIs such as connectionProxyDictionary, and CFNetworkExecuteProxyAutoConfigurationURL(::::). (28578280)
  • Networking – SPDY support is removed from the URLSession and NSURLConnection APIs. Servers should use HTTP 2 or HTTP 1.1. (43391641)
  • Networking – The Network Kernel Extension API is now deprecated. (49284108)
  • Networking – NetBIOS is disabled in macOS 10.15 to speed up mounting, browsing, and connecting to SMB shares. Some older printers and file servers may require NetBIOS to connect. (51119111)To enable NetBIOS, you can create or edit the /etc/nsmb.conf file. If your system doesn’t already have an /etc/nsmb.conf file, use the following Terminal commands while logged in as an Administrator:echo “[default]” | sudo tee -a /etc/nsmb.conf echo “port445=both” | sudo tee -a /etc/nsmb.conf To disable NetBIOS, you can safely delete the /etc/nsmb.conf file.
  • Quartz Composer – Starting in macOS 10.15, the Quartz Composer framework is deprecated and remains present for compatibility purposes. Transition to frameworks such as Core Image, SceneKit, or Metal. (50911608)
  • Screen Time – Users can no longer select “One more minute” multiple times per day once they reach the limit for an app. (48773803)
  • Scripting Language Runtimes – Scripting language runtimes such as Python, Ruby, and Perl are included in macOS for compatibility with legacy software. Future versions of macOS won’t include scripting language runtimes by default, and might require you to install additional packages. If your software depends on scripting languages, it’s recommended that you bundle the runtime within the app. (49764202)
  • Scripting Language Runtimes – Use of Python 2.7 isn’t recommended as this version is included in macOS for compatibility with legacy software. Future versions of macOS won’t include Python 2.7. Instead, it’s recommended that you run python3 from within Terminal. (51097165)
  • SwiftUI – The Command structure is replaced by passing selectors directly. (53187891)
  • SwiftUI – NavigationDestinationLink and DynamicNavigationDestinationLink are deprecated; their functionality is now included in NavigationLink. (50630794)
  • SwiftUI – The Length type is replaced by CGFloat. (50654095)
  • SwiftUI – TabbedView is now named TabView. (51012120)
  • SwiftUI – HAlignment and VAlignment are now deprecated, use the more flexible HorizontalAlignment or VerticalAlignment types instead and use TextAlignment for text. (51190531)
  • SwiftUI – The SelectionManager protocol is removed, use Optional and Set instances directly for selection. (51557694)
  • SwiftUI – The isPresented environment value is deprecated and replaced with the more general presentationMode value. (51641238)
  • SwiftUI – The StaticMember protocol is deprecated. Use protocol-conforming types directly instead. For example, use an instance of WheelPickerStyle directly rather than the wheel static member.(52911961)
  • SwiftUI – Complex overloads for the background(:alignment:) and border(:width:)modifiers are deprecated. Use shapes in a background(:alignment:) or overlay(:alignment:) to draw these instead. (53067530)
  • SwiftUI – SwiftUI APIs deprecated in previous betas are now removed. (52587863)
  • SwiftUI – The identified(by:) method on the Collection protocol is deprecated in favor of dedicated init(:id:selection:rowContent:) and init(:id:content:)initializers. (52976883, 52029393)The retroactive conformance of Int to the Identifiable protocol is removed. Change any code that relies on this conformance to pass .self to the id parameter of the relevant initializer. Constant ranges of Int continue to be accepted:List(0..<5) { Text(“Rooms”) } However, you shouldn’t pass a range that changes at runtime. If you use a variable that changes at runtime to define the range, the list displays views according to the initial range and ignores any subsequent updates to the range.
  • SwiftUI – Several extensions to the Binding structure are removed. (51624798)If you have code such as the following:struct LandmarkList: View { var landmark: [Landmark] @Binding var favorites: Set var body: some View { List(landmarks) { landmark in Toggle(landmark.name, isOn: self.$favorites.contains(landmarkID)) } } } Define the following subscript on the Set structure:extension Set { subscript(member: Element) -> Bool { get { contains(member) } set { if newValue { insert(member) } else { remove(member) } } } } Then, change self.$favorites.contains(landmarkID) toself.$favorites[landmarkID].
  • SwiftUI – The Binding structure’s conditional conformance to the Collection protocol is removed. (51624798)If you have code such as the following:struct LandmarkList: View { @Binding var landmark: [Landmark] var body: some View { List(landmarks) { landmark in Toggle(landmark.value.name, isOn: landmark[.isFavorite]) } } } Define the following collection type:struct IndexedCollection: RandomAccessCollection { typealias Index = Base.Index typealias Element = (index: Index, element: Base.Element) let base: Base var startIndex: Index { base.startIndex } var endIndex: Index { base.startIndex } func index(after i: Index) -> Index { base.index(after: i) } func index(before i: Index) -> Index { base.index(before: i) } func index(_ i: Index, offsetBy distance: Int) -> Index { base.index(i, offsetBy: distance) } subscript(position: Index) -> Element { (index: position, element: base[position]) } } extension RandomAccessCollection { func indexed() -> IndexedCollection { IndexedCollection(base: self) } } Then, update your code to:struct LandmarkList: View { @Binding var landmarks: [Landmark] var body: some View { List(landmarks.indexed(), id: .1.id) { (index, landmark) in Toggle(landmark.name, isOn: self.$landmarks[index].isFavorite) } } }
  • Xcode – Command line tool support for Subversion — including svn, git-svn, and related commands — is no longer provided by Xcode. If you need Subversion or related command line tools, install the Command Line Tools package by running xcode-select –install. (50266910)

2. New Features in Beta 5

  • General – Installing third party kernel extensions now requires that you restart your Mac before they’re permitted to load. (50340461)
  • AppleEvents – To enhance security, AppleEvents and AppleScripts that target an app on a remote system must authenticate as the same user on the remote system. An AppleEvent that targets an app running as a different user receives a procNotFound error.To allow remote AppleEvents to target apps in any user session, run the following command in Terminal on the server:defaults write /Library/Preferences/com.apple.AEServer RestrictAccessToUserSession -bool false Then disable and reenable Remote Apple Events in System Preferences > Sharing. (5353592)
  • Audio – You can now enable voice processing mode on AVAudioEngine. (50906329)
  • Audio – You can use new AVAudioNode types to wrap a user-defined block for sending or receiving data in real-time.
  • Audio – A new method is available for an AVAudioEngine based app to retrieve a list of all nodes attached to an AVAudioEngine instance.
  • Audio – A new rendering mode in AVAudioEnvironmentNode selects the best spatial audio rendering algorithm automatically based on the output device.
  • Audio – A new AVAudioSession property allows system sounds and haptics to play while the session is actively using audio input.
  • Audio – A new property, AVAudioSession.PromptStyle informs apps which style of voice prompt they should play based on other audio activity in the system.
  • Audio – The AVAudioSession.RouteSharingPolicy enumeration is extended to allow apps to specify route sharing policies so their audio and video is routed to the same location as AirPlay.
  • Audio – Audio Unit Extensions now support user presets that are available across all host apps.
  • AVFoundation – The AVPlayer class includes to new properties, eligibleForHDRPlayback and eligibleForHDRPlaybackDidChangeNotification, which you can use to determine whether an HDR display is available and can play on the current device. (35938145)
  • AVFoundation – AVFoundation now supports encoding video with alpha channels using HEVC. Videos encoded in this manner are broadly supported in AVFoundation APIs and by Safari within web pages. Technical details of the format can be found in the Interoperability Profile specification. (8045917)
  • Core Image – The init(imageURL:options:) and init(imageData:options:) initializers no longer support RAW decoder versions earlier than 6. Version 6 and later remain supported. (50911303)
  • Core Image – Added new APIs for instantiating and modifying the built-in Core Image filters.
  • Core Image – The CICoreMLModel filter is enhanced to support models with an input or output of type MLFeatureType.multiArray.
  • Core Image – Metal CIKernel instances now support arguments with arbitrarily structured data.
  • Core Image – Metal CIKernel instances now support returning a group of two by two pixels.
  • Core Image – The integer values of CIFormat symbols, such as ARGB8, have changed to a new set of values which are consistent across platforms. The former values remain supported for backward compatibility; however, you should avoid dependancies on specific numerical values.
  • Launch Daemons and Agents – Launch daemons and launch agents introduce new user privacy protections. Specifying privacy-sensitive files and folders in a launchd property list might not work as expected and prevent the service from running. Having Program or ProgramArguments pointing to an executable in a privacy sensitive location is currently allowed, but may be restricted in a future release. (49702405)To comply with the new privacy protections, resources for a launchd service must be stored in locations that aren’t privacy sensitive. If necessary, the app can set up resources during its execution rather than using launchd property list keys, making it possible to grant the app access using System Preferences > Security & Privacy > Privacy.The following launchd property list keys are affected: KeepAlive, PathState, QueueDirectories, Sockets, SockPathName, StandardErrorPath, StandardInPath, StandardOutPath, and WatchPaths.
  • Photos – To improve the Photos upgrade experience, Photos is testing database upgrades using a clone of the Photo Library. This clone doesn’t include the content of each photo, but does include faces metadata and a thumbnail image of each person in your library. It also contains metadata such as the asset name and the geographic location of the photo. It is created at ~/Pictures/macOS 10.15 Pre-Upgrade Backup, and you can manually remove this backup at any time. The clone will be removed automatically before the final release of macOS 10.15. (51033690)
  • SwiftUI – You can now create a Color from a UIColor or NSColor. (49833933)
  • SwiftUI – NSManagedObject now conforms to ObservableObject. The new @FetchRequestproperty wrapper can drive views from the results of a fetch request, and managedObjectContext is now included in the environment. (50280673)
  • SwiftUI – Gesture modifiers are renamed for consistency. For example, tapAction(count:🙂 is renamed onTapGesture(count:perform:), and longPressAction(minimumDuration:maximumDistance::pressing:) is renamed onLongPressGesture(minimumDuration:maximumDistance:pressing:perform:). (50395282)
  • SwiftUI – Text now has a default line limit of nil so that it wraps by default. (51147116)
  • SwiftUI – ContentSizeCategory and several other enumerations are now CaseIterable. (51168712)
  • SwiftUI – SegmentedControl is now a style of Picker. (51769046)
  • SwiftUI – BindableObject is replaced by the ObservableObject protocol from the Combine framework. (50800624)You can manually conform to ObservableObject by defining an objectWillChangepublisher that emits before the object changes. However, by default, ObservableObjectautomatically synthesizes objectWillChange and emits before any @Publishedproperties change.// RoomStore.swift import Foundation class RoomStore: ObservableObject { @Published var rooms: [Room] = [] } struct Room: Identifiable { var id: UUID var name: String var capacity: Int var hasVideo: Bool } // ContentView.swift import SwiftUI struct ContentView: View { @ObservedObject var store: RoomStore var body: some View { NavigationView { List(store.rooms) { room in RoomCell(room: room) } .navigationBarTitle(“Rooms”) } } } @ObjectBinding is replaced by @ObservedObject.
  • SwiftUI – The Identifiable protocol is now part of the Swift standard library. As a result, your model files no longer need to import the SwiftUI framework. (SE-0261)
  • SwiftUI – You can style a NavigationView using two new style properties: StackNavigationViewStyle and DoubleColumnNavigationViewStyle. By default, navigation views on iPhone and Apple TV visually reflect a navigation stack, while on iPad and Mac, a split-view styled navigation view displays. (51636729)When using the DoubleColumnNavigationViewStyle style, you can provide two views when creating a navigation view — the first is the master and the second is the detail. For example:NavigationView { MyMasterView() MyDetailView() } .navigationViewStyle(DoubleColumnNavigationViewStyle())

3. New Known Issues in Beta 5

  • General – If you use Quick Look to preview an HTML document, the app you’re using might quit unexpectedly. (53330705)
  • General – During installation of macOS 10.15 you might be prompted to enter your administrator password multiple times to allow installation to proceed. (51206649)
  • App Store – You might receive an error when downloading or updating apps. (49755328)Workaround: Sign out of your account using the Store menu, then sign back in and retry your download.
  • Apple TV – Support for signing in with an account from a different country is currently unavailable. (51240948)
  • Camera – Apps using Picture Taker must specify the NSCameraUsageDescription key to access the FaceTime camera. (47916725)
  • EndpointSecurity – Using APIs related to muting by paths and path prefixes might cause the kernel to panic. (53517643)Workaround: Modify only muted paths and path prefixes when the client isn’t subscribed to any events. es_mute_path_prefix, es_mute_path_literal, and es_unmute_all_paths are affected.
  • EndpointSecurity – Messages to clients might be truncated, which could cause clients to quit unexpectedly. (53517680)
  • iCloud – The Cloud Files section in About This Mac > Storage > Manage might inaccurately represent the current state of files on your Mac. (50362095)
  • iCloud – Even when Optimize Storage is switched off, iCloud Drive might fail to automatically download all files. (50667204)Workaround: Download files individually.
  • iCloud – When creating a new Pages, Numbers, or Keynote document in a shared folder, you might see the message “Couldn’t connect to iCloud”. (50827963)Workaround: Close and reopen the document.
  • iWork – Launch Daemons and Agents
  • Localization – Certain languages might exhibit clipped or misaligned layout. (51068688, 50983852)
  • Localization – Certain languages might display unlocalized text. (47765173, 51196633)
  • Mac Catalyst – MPMediaPickerController might not display the contents of your library. (51785735)
  • Mac Catalyst – In order to show a share sheet from a toolbar item using the UIActivityViewController, create the NSToolbarItem using the init(itemIdentifier:)initializer and pass it a UIBarButtonItem configured as a UIBarButtonItem.SystemItem.action. There is no need to set the barButtonItem property. (47292316)
  • Mac Catalyst – The UIScreen class’s isCaptured API isn’t currently supported. (48360589)
  • Mac Catalyst – The current property on UIDevice and the OS Product Name is currently returned as iOS rather than macOS, which can affect diagnostic logs generated by your system. (49792004)
  • Mac Catalyst – Event handling in extension contexts may produce unexpected results, including failure to deliver trackpad pinch and zoom gestures. (50145462)
  • Mac Catalyst – When sending Mail attachments via MessageUI, each attachment might appear as two icons when viewed by the recipient. (50369995)
  • Mac Catalyst – Controls drawn with accent color incorrectly maintain their active color when the window is inactive. There is no need to work around this in your app. (50563638)
  • Mac Catalyst – The UIKit module currently doesn’t import the newly added NSToolbar and NSTouchBarheaders, NSToolbar+UIKitAdditions.h and NSTouchBar+UIKitAdditions.h. You can import these headers directly in Objective-C, or you can create a bridging header to import them for Swift. Be sure to import Foundation before importing these headers. (50704322)
  • Mac Catalyst – Action and share extensions might exhibit visual anomalies. (51005363)
  • Mac Catalyst – CallKit CXAction instances might return an error. (51074735)
  • Mail – If your Mac contains both macOS Mojave 10.14 and macOS 10.15 volumes, you might experience issues searching in Mail. (46611310)Workaround: While running macOS Mojave 10.14, open Terminal and execute the following command:sudo touch /.metadata_never_index_unless_rootfs Reboot into macOS 10.15, open Terminal and execute the following command:sudo touch /System/Volumes/Data/.metadata_never_index_unless_rootfs Reboot into macOS Mojave 10.14, open Terminal and execute the following command:sudo mdutil -E / Depending on the size of your Mail database, it might take many hours to reindex all content.
  • Music – Navigating using the back button might produce unexpected results. (51248128)
  • Music – You might be unable to scroll content on shelves. (51248128)
  • Music – Artwork changes might not immediately appear; playlists will be added in an upcoming beta. (51201715)
  • Music – Music might not remember the previously selected tab when it’s relaunched. (50922604)
  • Networking – The NWEthernetChannel API doesn’t currently support VLAN interfaces. NEPacketTunnelProvider will see both tagged and untagged frames arriving on physical interfaces. Depending on the Ethernet driver, VLAN tags might be processed by hardware and thus stripped off the Ethernet frames thus NEPacketTunnelProvider won’t see the VLAN tag. (51275655)
  • Podcasts – Deleting podcasts using About This Mac > Storage > Manage doesn’t update what’s shown in the Podcasts app until it’s relaunched. (50354510)
  • Podcasts – Setting “Automatically Download Episodes” to “Never” might not take effect. (50960777)
  • Podcasts – If Podcasts is placed in Full Screen mode, some UI elements might be obscured by the toolbar. (47125303)
  • Screen Time – Screen Time > Content & Privacy > Content > Web Content > Allowed Websites Only isn’t currently enforced in macOS 10.15 beta. (50462899)
  • Spotlight – Mail messages might not display previews. (35678035)
  • SwiftUI – Using Xcode 11 beta 4 with macOS Catalina beta 5 prevents previews from working. Update to Xcode 11 beta 5 to use previews. (52082331)
  • SwiftUI – Using the Path structure may cause your app to crash if you’re using the SDKs included in Xcode 11 beta 5. (53523206)
  • SwiftUI – Using a ForEach view with a complex expression in its closure can may result in compiler errors.Workaround: Extract those expressions into their own View types. (53325810)
  • SwiftUI – Image instances don’t use resizing information configured in asset catalogs. Configure the size of an image using the resizable(capInsets:resizingMode:) modifier instead. (49114577)

4. New Resolved Issues in Beta 5

  • General – Your Secure Token correctly remains when FileVault is enabled on a non-APFS formatted volume while upgrading to macOS Catalina 10.15. (51091312)
  • DriverKit – DriverKit drivers build correctly. (52858797)
  • EndpointSecurity – High frequency AUTH events such as ES_EVENT_TYPE_AUTH_READLINK triggered by logd no longer cause the client to become unresponsive. (52211117)
  • EndpointSecurity – The es_mute_process(:🙂 interface correctly mutes processes. (53017708)
  • EndpointSecurity – es_copy_message(_:) functions correctly. (53013028)
  • iCloud – Documents saved to your Desktop appear correctly when you’re using iCloud Desktop and Documents. (51569326, 52731989)
  • Podcasts – You can manually check for feed updates by selecting File > Refresh Feeds. (50958585)
  • Podcasts – The sidebar renders as expected. (51340728)
  • Privacy – Apps that previously asked for access to services in the System Preferences > Security & Privacy > Privacy pane no longer ask for approval again after updating to macOS Catalina beta 5. (51312574)
  • Screen Time – Users can no longer select “One more minute” multiple times per day once they reach the limit for an app. (48773803)
  • Security – Opening some .dmg files signed before June 1, 2019 using a Developer ID no longer incorrectly display an error message. All .dmg files signed using a Developer ID after June 1, 2019 must be notarized. For more information about notarization, see Notarizing Your App Before Distribution. (52234399)

Report your bugs NOW!

Now that 10.15 Beta is live, be sure you begin testing as soon as you can. You will want to get any bugs that you find into Apple now. If you get them in now, they could be fixed in the current beta cycle instead of waiting until after September’s release date. If you wait it could be months before the fix is put into a dot release combo update.

Link to Apple’s Public Developer Documentation

developer.apple.com/documentation/macos_release_notes

Previous 10.15 Beta Releases

  • 5th Catalina 10.15 Beta 5 (19A526h) – 07/31/19 – Current Release
  • 4th Catalina 10.15 Beta 4 (19A512f) – 07/17/19 – Release Notes
  • 3rd Catalina 10.15 Beta 3 (19A501i) – 07/02/19 – Release Notes
  • 2nd Catalina 10.15 Beta 2 (19A487l) – 06/17/19 – Release Notes
  • 1st Catalina 10.15 Beta 1 (19A471t) – 06/03/19 Release Notes

How to download macOS 10.15 Catalina beta releases

Full 10.15 (19A526h) Beta 5 Patch/Release Notes

I always post the full macOS 10.15 Beta 4 patch notes to this page to document them for you. The reason behind that is that Apple will usually just replace over the old patch notes so you are then unable to see what was fixed in the previous release.

Overview

The macOS 10.15 SDK provides support for developing apps for Macs running macOS Catalina 10.15. The SDK comes bundled with Xcode 11 beta available from Beta Software Downloads. For information on the compatibility requirements for Xcode 11, see Xcode 11 Beta 5 Release Notes.

General

New Features

  • Installing third party kernel extensions now requires that you restart your Mac before they’re permitted to load. (50340461)

Known Issues

  • If you use Quick Look to preview an HTML document, the app you’re using might quit unexpectedly. (53330705)
  • During installation of macOS 10.15 you might be prompted to enter your administrator password multiple times to allow installation to proceed. (51206649)

Resolved Issues

  • Your Secure Token correctly remains when FileVault is enabled on a non-APFS formatted volume while upgrading to macOS Catalina 10.15. (51091312)

Deprecations

  • macOS frameworks are now thinned for the x86-64 architecture. Apps that execute i386 code now fail with the EBADARCH error code. The remaining stub frameworks are nonfunctional and exist only for compatibility purposes. (51236070)

AirDrop

Known Issues

App Store

Known Issues

  • You might receive an error when downloading or updating apps. (49755328)Workaround: Sign out of your account using the Store menu, then sign back in and retry your download.

Apple TV

Known Issues

  • Support for signing in with an account from a different country is currently unavailable. (51240948)

AppleEvents

New Features

  • To enhance security, AppleEvents and AppleScripts that target an app on a remote system must authenticate as the same user on the remote system. An AppleEvent that targets an app running as a different user receives a procNotFound error.To allow remote AppleEvents to target apps in any user session, run the following command in Terminal on the server:defaults write /Library/Preferences/com.apple.AEServer RestrictAccessToUserSession -bool false Then disable and reenable Remote Apple Events in System Preferences > Sharing. (5353592)

Audio

New Features

  • You can now enable voice processing mode on AVAudioEngine. (50906329)
  • You can use new AVAudioNode types to wrap a user-defined block for sending or receiving data in real-time.
  • A new method is available for an AVAudioEngine based app to retrieve a list of all nodes attached to an AVAudioEngine instance.
  • A new rendering mode in AVAudioEnvironmentNode selects the best spatial audio rendering algorithm automatically based on the output device.
  • A new AVAudioSession property allows system sounds and haptics to play while the session is actively using audio input.
  • A new property, AVAudioSession.PromptStyle informs apps which style of voice prompt they should play based on other audio activity in the system.
  • The AVAudioSession.RouteSharingPolicy enumeration is extended to allow apps to specify route sharing policies so their audio and video is routed to the same location as AirPlay.
  • Audio Unit Extensions now support user presets that are available across all host apps.

Deprecations

  • The OpenAL framework is deprecated and remains present for compatibility purposes. Transition to AVAudioEngine for spatial audio functionality.
  • AUGraph is deprecated in favor of AVAudioEngine.
  • Inter-App audio is deprecated. Use Audio Units for this functionality.
  • Carbon component-based Audio Units are deprecated and support will be removed in a future release.
  • Legacy Core Audio HAL audio hardware plug-ins are no longer supported. Use Audio Server plug-ins for audio drivers.

AVFoundation

New Features

  • The AVPlayer class includes to new properties, eligibleForHDRPlayback and eligibleForHDRPlaybackDidChangeNotification, which you can use to determine whether an HDR display is available and can play on the current device. (35938145)
  • AVFoundation now supports encoding video with alpha channels using HEVC. Videos encoded in this manner are broadly supported in AVFoundation APIs and by Safari within web pages. Technical details of the format can be found in the Interoperability Profile specification. (8045917)

Deprecations

  • The previously deprecated 32-bit QuickTime framework is no longer available in macOS 10.15.
  • The symbols for QTKit, which relied on the QuickTime framework, are still present but the classes are non-functional.

Camera

Known Issues

Core Image

New Features

  • The init(imageURL:options:) and init(imageData:options:) initializers no longer support RAW decoder versions earlier than 6. Version 6 and later remain supported. (50911303)
  • Added new APIs for instantiating and modifying the built-in Core Image filters.
  • The CICoreMLModel filter is enhanced to support models with an input or output of type MLFeatureType.multiArray.
  • Metal CIKernel instances now support arguments with arbitrarily structured data.
  • Metal CIKernel instances now support returning a group of two by two pixels.
  • The integer values of CIFormat symbols, such as ARGB8, have changed to a new set of values which are consistent across platforms. The former values remain supported for backward compatibility; however, you should avoid dependancies on specific numerical values.

DriverKit

Resolved Issues

  • DriverKit drivers build correctly. (52858797)

EndpointSecurity

Known Issues

  • Using APIs related to muting by paths and path prefixes might cause the kernel to panic. (53517643)Workaround: Modify only muted paths and path prefixes when the client isn’t subscribed to any events. es_mute_path_prefixes_mute_path_literal, and es_unmute_all_paths are affected.
  • Messages to clients might be truncated, which could cause clients to quit unexpectedly. (53517680)

Resolved Issues

  • High frequency AUTH events such as ES_EVENT_TYPE_AUTH_READLINK triggered by logd no longer cause the client to become unresponsive. (52211117)
  • The es_mute_process(_:_:) interface correctly mutes processes. (53017708)
  • es_copy_message(_:) functions correctly. (53013028)

Deprecations

  • The kauth API will be removed in a future release. (50419013)

iCloud

Known Issues

  • The Cloud Files section in About This Mac > Storage > Manage might inaccurately represent the current state of files on your Mac. (50362095)
  • Even when Optimize Storage is switched off, iCloud Drive might fail to automatically download all files. (50667204)Workaround: Download files individually.
  • When creating a new Pages, Numbers, or Keynote document in a shared folder, you might see the message “Couldn’t connect to iCloud”. (50827963)Workaround: Close and reopen the document.

Resolved Issues

  • Documents saved to your Desktop appear correctly when you’re using iCloud Desktop and Documents. (51569326, 52731989)

iWork

Known Issues

  • Attempting to open iWork documents in Finder will unexpectedly create a .cpgz file if the corresponding iWork app isn’t installed. (40693892)Workaround: Install the corresponding app from the App Store before opening the document.

Launch Daemons and Agents

New Features

  • Launch daemons and launch agents introduce new user privacy protections. Specifying privacy-sensitive files and folders in a launchd property list might not work as expected and prevent the service from running. Having Program or ProgramArguments pointing to an executable in a privacy sensitive location is currently allowed, but may be restricted in a future release. (49702405)To comply with the new privacy protections, resources for a launchd service must be stored in locations that aren’t privacy sensitive. If necessary, the app can set up resources during its execution rather than using launchd property list keys, making it possible to grant the app access using System Preferences > Security & Privacy > Privacy.The following launchd property list keys are affected: KeepAlivePathStateQueueDirectoriesSocketsSockPathNameStandardErrorPathStandardInPathStandardOutPath, and WatchPaths.

Localization

Known Issues

  • Certain languages might exhibit clipped or misaligned layout. (51068688, 50983852)
  • Certain languages might display unlocalized text. (47765173, 51196633)

Mac Catalyst

Known Issues

  • MPMediaPickerController might not display the contents of your library. (51785735)
  • AppKit and Mac Catalyst apps are currently view-only clients of PencilKit. (51146823)
  • In order to show a share sheet from a toolbar item using the UIActivityViewController, create the NSToolbarItem using the init(itemIdentifier:)initializer and pass it a UIBarButtonItem configured as a UIBarButtonItem.SystemItem.action. There is no need to set the barButtonItem property. (47292316)
  • The UIScreen class’s isCaptured API isn’t currently supported. (48360589)
  • The current property on UIDevice and the OS Product Name is currently returned as iOS rather than macOS, which can affect diagnostic logs generated by your system. (49792004)
  • Event handling in extension contexts may produce unexpected results, including failure to deliver trackpad pinch and zoom gestures. (50145462)
  • When sending Mail attachments via MessageUI, each attachment might appear as two icons when viewed by the recipient. (50369995)
  • Controls drawn with accent color incorrectly maintain their active color when the window is inactive. There is no need to work around this in your app. (50563638)
  • The UIKit module currently doesn’t import the newly added NSToolbar and NSTouchBarheaders, NSToolbar+UIKitAdditions.h and NSTouchBar+UIKitAdditions.h. You can import these headers directly in Objective-C, or you can create a bridging header to import them for Swift. Be sure to import Foundation before importing these headers. (50704322)
  • When your Mac Catalyst app is launched directly into the background, it experiences all the state transitions of a regular app launch — such as application(_:didFinishLaunchingWithOptions:) and applicationDidBecomeActive(_:) — followed by state transitions to return to background state from there — applicationWillResignActive(_:) and applicationDidEnterBackground(_:). This will soon be updated to match iOS, where your app will receive only applicationDidFinishLaunching(_:), and only if it wasn’t already running. (50742219)
  • For Mac Catalyst apps to save to Photos Library, explicitly linking the Photos framework is required. (50781430)
  • Opening a CloudKit share URL might not launch a Mac Catalyst app that’s present on the system. Additionally, the system might not take the user to the appropriate App Store page to download an app which isn’t present on the system. (50877241)
  • Action and share extensions might exhibit visual anomalies. (51005363)
  • All assets at 3x scale factor are currently ignored when compiling the asset catalog for Mac Catalyst apps. Because the search begins with the universal asset, assets for a specific memory or graphics class won’t be found. For example, if you provide an image and only give a 6GB and Metal 5v1 asset, it won’t be found at runtime. It’s recommended that you provide all images as vectors to allow generation of the correct scale factors, or at minimum provide 2x versions of the assets. If you’re classifying resources based on memory and graphics families then you should provide “Any Memory” and “Any Graphics”. (51033745)
  • CallKit CXAction instances might return an error. (51074735)
  • When creating a Mac Catalyst app from your iPad app, Xcode automatically generates a unique Mac bundle identifier. If you have an existing Mac bundle identifier you’d prefer to use, you can do so by using manual signing in Xcode. (51076014)Follow these steps to configure your project, AppID, and provisioning profile:
  1. Sign in to Apple Developer, then select Certificates, Identifiers, and Profiles.
  2. In the Identifiers section, select your iOS app identifier to edit.
  3. Check the Mac Catalyst capability to enable it, then click the Configure button.
  4. Choose Use an existing macOS AppID and select the identifier you’d like to use from the popup menu. Click the Save button to finish editing your AppID.
  5. In the Profiles section, click the + button to create a new profile, select ‘macOS App Development’, and click Continue.
  6. Select your iOS AppID from the popup, click Continue, and complete the rest of the profile creation flow. When finished, click the Download button.
  7. In Xcode, select your project to view the Project Editor and select your app’s target. Then select the Build Settings tab.
  8. Set the Derive Mac Catalyst Product Bundle Identifier setting to No.
  9. Expand the Product Bundle Identifier build setting to view its configurations. Next to the Debug configuration, click the + button to add a conditional value.
  10. For the build setting condition, select Any macOS from the popup menu. Edit the value of the conditional build setting to match the macOS bundle identifier you want to use. Repeat this step for all configurations in your project.
  11. In the Signing & Capabilities tab, uncheck Automatically manage signing.
  12. For your macOS app, select Import Profile from the Provisioning Profile popup and then select the profile you downloaded earlier.

Mail

Known Issues

  • If your Mac contains both macOS Mojave 10.14 and macOS 10.15 volumes, you might experience issues searching in Mail. (46611310)Workaround: While running macOS Mojave 10.14, open Terminal and execute the following command:sudo touch /.metadata_never_index_unless_rootfs Reboot into macOS 10.15, open Terminal and execute the following command:sudo touch /System/Volumes/Data/.metadata_never_index_unless_rootfs Reboot into macOS Mojave 10.14, open Terminal and execute the following command:sudo mdutil -E / Depending on the size of your Mail database, it might take many hours to reindex all content.

Music

Known Issues

  • Navigating using the back button might produce unexpected results. (51248128)
  • You might be unable to scroll content on shelves. (51248128)
  • Artwork changes might not immediately appear; playlists will be added in an upcoming beta. (51201715)
  • Music might not remember the previously selected tab when it’s relaunched. (50922604)

Networking

New Features

Known Issues

  • The NWEthernetChannel API doesn’t currently support VLAN interfaces. NEPacketTunnelProvider will see both tagged and untagged frames arriving on physical interfaces. Depending on the Ethernet driver, VLAN tags might be processed by hardware and thus stripped off the Ethernet frames thus NEPacketTunnelProvider won’t see the VLAN tag. (51275655)

Deprecations

  • Support for FTP and File URL schemes for Proxy Automatic Configuration (PAC) is removed. HTTP and HTTPS are the only supported URL schemes for PAC. This affects all PAC configurations including but not limited to configurations set using Settings, System Preferences, profiles, URLSession APIs such as connectionProxyDictionary, and CFNetworkExecuteProxyAutoConfigurationURL(_:_:_:_:). (28578280)
  • SPDY support is removed from the URLSession and NSURLConnection APIs. Servers should use HTTP 2 or HTTP 1.1. (43391641)
  • The Network Kernel Extension API is now deprecated. (49284108)
  • NetBIOS is disabled in macOS 10.15 to speed up mounting, browsing, and connecting to SMB shares. Some older printers and file servers may require NetBIOS to connect. (51119111)To enable NetBIOS, you can create or edit the /etc/nsmb.conf file. If your system doesn’t already have an /etc/nsmb.conf file, use the following Terminal commands while logged in as an Administrator:echo "[default]" | sudo tee -a /etc/nsmb.conf echo "port445=both" | sudo tee -a /etc/nsmb.conf To disable NetBIOS, you can safely delete the /etc/nsmb.conf file.

Photos

New Features

  • To improve the Photos upgrade experience, Photos is testing database upgrades using a clone of the Photo Library. This clone doesn’t include the content of each photo, but does include faces metadata and a thumbnail image of each person in your library. It also contains metadata such as the asset name and the geographic location of the photo. It is created at ~/Pictures/macOS 10.15 Pre-Upgrade Backup, and you can manually remove this backup at any time. The clone will be removed automatically before the final release of macOS 10.15. (51033690)

Podcasts

Known Issues

  • Deleting podcasts using About This Mac > Storage > Manage doesn’t update what’s shown in the Podcasts app until it’s relaunched. (50354510)
  • Setting “Automatically Download Episodes” to “Never” might not take effect. (50960777)
  • If Podcasts is placed in Full Screen mode, some UI elements might be obscured by the toolbar. (47125303)

Resolved Issues

  • You can manually check for feed updates by selecting File > Refresh Feeds. (50958585)
  • The sidebar renders as expected. (51340728)

Privacy

Resolved Issues

  • Apps that previously asked for access to services in the System Preferences > Security & Privacy > Privacy pane no longer ask for approval again after updating to macOS Catalina beta 5. (51312574)

Quartz Composer

Deprecations

  • Starting in macOS 10.15, the Quartz Composer framework is deprecated and remains present for compatibility purposes. Transition to frameworks such as Core Image, SceneKit, or Metal. (50911608)

Screen Time

Known Issues

  • Screen Time > Content & Privacy > Content > Web Content > Allowed Websites Only isn’t currently enforced in macOS 10.15 beta. (50462899)

Resolved Issues

  • Users can no longer select “One more minute” multiple times per day once they reach the limit for an app. (48773803)

Scripting Language Runtimes

Deprecations

  • Scripting language runtimes such as Python, Ruby, and Perl are included in macOS for compatibility with legacy software. Future versions of macOS won’t include scripting language runtimes by default, and might require you to install additional packages. If your software depends on scripting languages, it’s recommended that you bundle the runtime within the app. (49764202)
  • Use of Python 2.7 isn’t recommended as this version is included in macOS for compatibility with legacy software. Future versions of macOS won’t include Python 2.7. Instead, it’s recommended that you run python3 from within Terminal. (51097165)

Security

Resolved Issues

  • Opening some .dmg files signed before June 1, 2019 using a Developer ID no longer incorrectly display an error message. All .dmg files signed using a Developer ID after June 1, 2019 must be notarized. For more information about notarization, see Notarizing Your App Before Distribution. (52234399)

Spotlight

Known Issues

  • Mail messages might not display previews. (35678035)

SwiftUI

New Features

Known Issues

  • Using Xcode 11 beta 4 with macOS Catalina beta 5 prevents previews from working. Update to Xcode 11 beta 5 to use previews. (52082331)
  • Using the Path structure may cause your app to crash if you’re using the SDKs included in Xcode 11 beta 5. (53523206)
  • Using a ForEach view with a complex expression in its closure can may result in compiler errors.Workaround: Extract those expressions into their own View types. (53325810)
  • Image instances don’t use resizing information configured in asset catalogs. Configure the size of an image using the resizable(capInsets:resizingMode:) modifier instead. (49114577)

Deprecations

  • The Command structure is replaced by passing selectors directly. (53187891)
  • NavigationDestinationLink and DynamicNavigationDestinationLink are deprecated; their functionality is now included in NavigationLink. (50630794)
  • The Length type is replaced by CGFloat. (50654095)
  • TabbedView is now named TabView. (51012120)
  • HAlignment and VAlignment are now deprecated, use the more flexible HorizontalAlignment or VerticalAlignment types instead and use TextAlignment for text. (51190531)
  • The SelectionManager protocol is removed, use Optional and Set instances directly for selection. (51557694)
  • The isPresented environment value is deprecated and replaced with the more general presentationMode value. (51641238)
  • The StaticMember protocol is deprecated. Use protocol-conforming types directly instead. For example, use an instance of WheelPickerStyle directly rather than the wheel static member.(52911961)
  • Complex overloads for the background(_:alignment:) and border(_:width:)modifiers are deprecated. Use shapes in a background(_:alignment:) or overlay(_:alignment:) to draw these instead. (53067530)
  • SwiftUI APIs deprecated in previous betas are now removed. (52587863)
  • The identified(by:) method on the Collection protocol is deprecated in favor of dedicated init(_:id:selection:rowContent:) and init(_:id:content:)initializers. (52976883, 52029393)The retroactive conformance of Int to the Identifiable protocol is removed. Change any code that relies on this conformance to pass \.self to the id parameter of the relevant initializer. Constant ranges of Int continue to be accepted:List(0..<5) { Text("Rooms") } However, you shouldn’t pass a range that changes at runtime. If you use a variable that changes at runtime to define the range, the list displays views according to the initial range and ignores any subsequent updates to the range.
  • Several extensions to the Binding structure are removed. (51624798)If you have code such as the following:struct LandmarkList: View { var landmark: [Landmark] @Binding var favorites: Set<Landmark> var body: some View { List(landmarks) { landmark in Toggle(landmark.name, isOn: self.$favorites.contains(landmarkID)) } } } Define the following subscript on the Set structure:extension Set { subscript(member: Element) -> Bool { get { contains(member) } set { if newValue { insert(member) } else { remove(member) } } } } Then, change self.$favorites.contains(landmarkID) toself.$favorites[landmarkID].
  • The Binding structure’s conditional conformance to the Collection protocol is removed. (51624798)If you have code such as the following:struct LandmarkList: View { @Binding var landmark: [Landmark] var body: some View { List(landmarks) { landmark in Toggle(landmark.value.name, isOn: landmark[\.isFavorite]) } } } Define the following collection type:struct IndexedCollection<Base: RandomAccessCollection>: RandomAccessCollection { typealias Index = Base.Index typealias Element = (index: Index, element: Base.Element) let base: Base var startIndex: Index { base.startIndex } var endIndex: Index { base.startIndex } func index(after i: Index) -> Index { base.index(after: i) } func index(before i: Index) -> Index { base.index(before: i) } func index(_ i: Index, offsetBy distance: Int) -> Index { base.index(i, offsetBy: distance) } subscript(position: Index) -> Element { (index: position, element: base[position]) } } extension RandomAccessCollection { func indexed() -> IndexedCollection<Self> { IndexedCollection(base: self) } } Then, update your code to:struct LandmarkList: View { @Binding var landmarks: [Landmark] var body: some View { List(landmarks.indexed(), id: \.1.id) { (index, landmark) in Toggle(landmark.name, isOn: self.$landmarks[index].isFavorite) } } }
  • The relativeWidth(_:)relativeHeight(_:), and relativeSize(width:height:) modifiers are deprecated. Use other modifiers like frame(minWidth:idealWidth:maxWidth:minHeight:idealHeight:maxHeight:alignment:) instead. (51494692)

Xcode

Deprecations

  • Command line tool support for Subversion — including svngit-svn, and related commands — is no longer provided by Xcode. If you need Subversion or related command line tools, install the Command Line Tools package by running xcode-select --install. (50266910)
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2 thoughts on “Apple Releases Fifth Beta of macOS Catalina 10.15 (19A526h) Beta 5”

  1. Cannot install on MacOS Mojave, need minimal 10.15 ???? How do i get the previous beta’s?

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