Apple released macOS 13 RC 2 update

According to the latest report, Apple today released the macOS 13 RC 2 update for eligible Mac users. The latest update improve security, CGImageCreate enforces parameter correctness on macOS Ventura 13, iOS 16, iPadOS 16, watchOS 9, and tvOS 16. Passing an incorrect CGImageByteOrderInfo is no longer supported, and will result in images failing to load. (94855401). You can check the complete changelog which is mentioned below.

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General

Known Issues

AppKit

• See AppKit Release Notes for macOS Ventura 13.

Accessory Security

New Features

• On portable Mac computers with Apple silicon, new USB and Thunderbolt accessories require user approval before the accessory can communicate with macOS for connections wired directly to the USB-C port. This doesn’t apply to power adapters, standalone displays, or connections to an approved hub. Devices can still charge if you choose Don’t Allow.You can change the security configuration in System Settings > Security and Privacy > Security. The initial configuration is Ask for new accessories. Configuring an accessibility Switch Control sets the policy to always allow accessory use. Approved devices can connect to a locked Mac for up to three days.

  Accessories attached during software update from prior versions of macOS are allowed automatically. New accessories attached prior to rebooting the Mac might enumerate and function, but won’t be remembered until connected to an unlocked Mac and explicitly approved. (43338666)

File System

New Features

• There’s a change to the implementation of the msdos and exfat file systems. Apps that check for those specific file system formats might not detect them. Please file feedback if this impacts your app. (90768681)
• The asr utility won’t perform a volume replication of the booted macOS volume group without having the invoking app augmented with Full Disk Access privileges (or if SIP is disabled). The new requirement is to turn on Full Disk Access for the app in System Settings > Privacy & Security. (91764517)

CoreGraphics

Deprecations

• To improve security, CGImageCreate enforces parameter correctness on macOS Ventura 13, iOS 16, iPadOS 16, watchOS 9, and tvOS 16. Passing an incorrect CGImageByteOrderInfo is no longer supported, and will result in images failing to load. (94855401)

DeviceDiscoveryUI

Known Issues

• Devices running beta 4 or later aren’t backwards compatible with devices running earlier beta versions. (95233878)

Game Controller

New Features

• Many additional Bluetooth and USB game controllers are supported by the Game Controller framework on macOS 13, iOS 16, and tvOS 16 and later. (82409809)

Mail

Known Issues

• Moving a Remind Me message to another mailbox doesn’t remove the Remind Me banner. (93685824)

Memory Allocation

Known Issues

• In apps built with the macOS 13 SDK or later, the system memory allocator free operation zeroes out most deallocated blocks in macOS 13 beta or later. Invalid accesses to free memory might result in new crashes or corruption, including:
  • Read-after-free bugs that previously observed the old contents of a block may now observe zeroes instead
  • Write-after-free bugs may now cause subsequent calls to calloc to return non-zero memory

  To debug these issues, use Address Sanitizer and Guard Malloc (see libgmalloc(3)). (97449075)

Metal

Known Issues

• The MTLResource.gpuHandle is deprecated. (92862429)Workaround: Use gpuResourceID instead, which functions as a replacement.

Metal Offline Compiler

Known Issues

• MetalFX effect outputs aren’t designed to be consumed by the CPU. Outputting to a texture that is read only by the CPU might result in synchronization issues. (91515075)Workaround: If a CPU reading of the MetalFX output is desired, instead of encoding the MetalFX effect as the last item in a command buffer, encode a dummy blit that consumes the MetalFX output texture (a 1-pixel region blit is fine) in the command buffer. After the command buffer with the dummy blit is finished, reading of the MetalFX effect output texture with CPU synchronizes correctly.

Networking

New Features

• Added NSURLSession support for client-certificate based authentication. (24523955)

• Added URLSession support for Private Access Tokens. (82937526)

Deprecations

• FTP is deprecated for URLSession and related APIs. Please adopt modern secure networking protocols such as HTTPS. (92623659)

StoreKit

New Features

• All StoreKit APIs are now annotated for sendability and main actor isolation. (84157048)

• Product has new properties for localizing prices and subscription periods. For iOS 15, iPadOS 15, macOS 12, tvOS 15, and watchOS 8 or later use priceFormatStyle to format numbers derived from price. Use subscriptionPeriodFormatStyle to format durations of time relating to a subscription period. On iOS 16, iPadOS 16, macOS 13, tvOS 16, and watchOS 9 or later use subscriptionPeriodUnitFormatStyle to format single units of a subscription period. (93780442)

• A property environment is included in Product.SubscriptionInfo.RenewalInfo and Transaction. It represents the server environment in which the RenewalInfo and Transaction occurred, respectively. (85988753)

• AppTransaction allows developers to cryptographically verify that the app was purchased on the App Store. (86739279)

• The recentSubscriptionStartDate property is included in Product.SubscriptionInfo.RenewalInfo. It represents the date that marks the start of the most recent period of continuous subscription. A period is considered a continuous subscription if there’s no more than a 60-day gap between any two subscribed periods. (86599570)

• Present the offer code redemption sheet with the offerCodeRedemption(isPresented:onCompletion:) view modifier in your SwiftUI apps. (85321941)

• The StoreKit Messages API allows you to control when App Store messages are displayed in your app. (85321880)

• Read the requestReview environment value to get an instance of a RequestReviewAction. Then, call this instance to request to display a review prompt from your SwiftUI apps. (86739003)

Deprecations

• Deprecated the SKDownload API and removed the option to upload nonconsumable in-app purchase assets for Apple to host. In addition, support for managing these assets in App Store Connect is no longer available as of April 2022. (89764253)

Swift

Known Issues

• Network.framework resolved an issue that could cause NWBrowser, NWConnection, NWConnectionGroup, NWEthernetChannel, NWListener, and NWPathMonitor to trigger a retain cycle when various Handler blocks are set. Starting with macOS 13, iOS 16, watchOS 9, and tvOS 16, if software using Network.framework targets these releases as the minimum OS, the object releases any blocks they captured once cancelled, breaking the retain cycle. (89677097)Workaround: For software targeting older versions, the retain cycle can be broken by setting the handler blocks to nil after canceling the object.

SwiftUI

New Features

• Custom types conforming to ToolbarContent now support dynamic properties like @Environment. (94117842)

• You can now place a TextField in an Alert by using alert modifiers that accept a ViewBuilder. (64819930)

• For control, Section, or other views that have a Label, the ViewBuilder content now automatically arranges and styles multiple views as hierarchical elements, such as title and subtitle. If the label views are intended to be arranged horizontally rather than hierarchically, wrap the views within an HStack. (85184563)

• A TextField supports multiline text. Use a Axis.vertical axis on a text field to allow rendering of multiple lines in contexts like forms, where text is expected to be short to medium length. For long-form text editing, continue to use a TextEditor. (51463718)

• A list supports Section footers. (78462739)
• When presenting a sheet or window, SwiftUI now uses focus state bindings to determine where focus should be placed by default. Clients can specify a custom binding assignment using the new View.defaultFocus(_:_:) modifier. (81837128)
• Applying View.focusable(false) to a container now also disables focus for the container’s contents. (89362190)
• An alert presented using an Error displays as a critical alert, which shows a caution symbol with the app icon overlaid. (82014147)
• Lists and tables automatically support type-to-select, using the first Text content in each cell. (85956291)
• Windows created using SwiftUI no longer have a maximum size by default. The user can resize them to fill the screen. To enforce a maximum size, use the .windowResizability(.contentSize) modifier. (92634133)

Known Issues

• Providing actions to a navigationTitle modifier has been deprecated. Use the toolbarTitleActions() modifier or ToolbarTitleActions type in a toolbar modifier instead. (93658035)

Texts and Fonts

Deprecations

• ATS and ATSUI APIs are fully deprecated. Code using these APIs will fail to compile and link when the deployment target is set to 13. Code targeting earlier versions of macOS will continue to compile, link, and run. macOS 13 is the last release where code depending on ATS or ATSUI will run. All runtime functionality will be removed in next major release of macOS. (83581159)

Wallet

Known Issues

• American Express cards might need to be removed and re-added to Wallet after updating to macOS 13 beta 6 or later. (97990752)