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NSScrollPocket overlay appearing on scroll views in NSSplitViewController on macOS Tahoe

I have an NSSplitViewController with three columns: sidebar full-height content view with NSScrollView/NSTableView detail view. There's no (visible) titlebar and no toolbar. This layout has worked fine for years, but in Tahoe an unwanted overlay (~30-50px high) appears at the top of any column containing a scroll view with table content. Xcode suggests it's an NSScrollPocket. My research suggests it... Only affects columns with NSScrollView Plain NSView columns are unaffected Overlay height varies (~50px or ~30px depending on how I mess with title / toolbar settings) Disabling titlebar/toolbar settings reduces but doesn't eliminate the overlay The overlay obscures content and there doesn't appear to be any API to control its visibility. Is this intended behavior, and if so, is there a way to disable it for applications that don't need this UI element? If it helps visualise the desired result, the app is https://indigostack.app Any guidance would be appreciated!

UI Frameworks AppKit

472

Sep ’25

Reply to Unable to remove certificate from xcode

I’ve always wondered about those status values, so I did some experimentation today (-: Remember that to sign code you need a code-signing identity. This is a digital identity, that is, the combination of a certificate and a private key that matches the public key in that certificate. For more background on this, see TN3161 Inside Code Signing: Certificates. So, there are four possibilities for the Manage Certificates UI: No row — If the certificate is not known to the Developer website, there’s simply no row for it in the list. Not In Keychain — This means that the certificate is known to the Developer website but there’s no copy of that certificate in your keychain. Missing Private Key — This means that the certificate is known to the Developer website and is available locally, but the associated private key is not in your keychain. Blank status — If the Status column is blank, everything is copacetic; Xcode will offer that code-signing identity as an option to sign code. Note If both the certifica

Code Signing Certificates, Identifiers & Profiles

Sep ’25

ScrollView breaks with LazyVGrid and Searchable on iOS 26 (only on older devices)

When using LazyVGrid within a ScrollView with the .searchable modifier, scrolling is impossible on iPhone 15 (I’m assuming other older devices are affected too). This behavior does not occur on iPhone 16 and newer. This also only happens, when the search bar is placed at the top, for example if the ScrollView is within a TabView. Here's a short screen recording of the issue: And this is a minimal example causing the issue: import SwiftUI struct ContentView: View { var body: some View { TabView { Tab(Text, systemImage: gear) { ExampleTab() } } } } struct ExampleTab: View { @State private var searchText: String = var body: some View { NavigationStack { ScrollView { LazyVGrid( columns: [GridItem( .adaptive(minimum: 120) )], spacing: 20 ) { ForEach(1..<100) { index in Text(Test (index)) } } } .searchable(text: self.$searchText) } } }

UI Frameworks SwiftUI SwiftUI

Sep ’25

Reply to RecognizeDocumentsRequest for receipts

Hi, It seems like it expected behavior. From the demo I can assume that it's not for those type of document. Imagine that you have a normal document, where you have a 2 columns of text. You wouldn't want to read it line by line like you want to do with receipts Unfortunately I try to do the same thing, so I have to stay with simple previous iOS OCR solution and trying to connect those in lines by my own (not very good) algorithm.

Machine Learning & AI General

Sep ’25

Mitigating overlapping text for sticky section headers for a plain List in iOS 26

When preparing SwiftUI code that uses List with .listStyle(.plain) for iOS 26, the by-default sticky section headers combined with the new translucent top-bars often causes unpleasantly overlapping text: Two questions here: Is there a modifier to make section headers non-sticky? This would be helpful for cases where the translucent bar is a good fit and the section titles don't need to be sticky/pinned. I found .listStyle(.grouped) can be an alternative in some cases, but this adds a gray background / additional padding to the section titles. Is there a way to get a blurry material behind the section headers when they are sticking to the top bar? This would be good for cases where the section header is important content-wise (like in the two-column example above or for a data list categorized using sections that should be always visible as a point of reference) I found the scroll edge effects and .scrollEdgeEffectStyle(.hard, for: .top) does the trick for the top bar but doesn't affect attached stick

UI Frameworks SwiftUI

210

Sep ’25

Reply to SwiftData Inheritance Query Specialized Model

Nice to know that the original issue goes away in the latest Beta. Regarding the crash triggered by the access to Item.children, if you can provide a runnable code snippet to demo the issue, I'll take another look. You have mentioned a few classes with inheritance, and so I think it is probably worth mentioning that over-using inheritance may impact your app's performance negatively. Concretely, with today's default store (DefaultStore), all the types in an inheritance hierarchy are persisted with one single table in SQLite. If your inheritance hierarchy has many classes, the table (columns and data) can be quite big, which can slow down the performance of fetching and inserting data. That being said, when adopting SwiftData inheritance, you might examine if that is a right use case. This WWDC25 session(starting from around 4:25) covers this topic a bit. You can take a look, if haven't yet. Best, —— Ziqiao Chen  Worldwide Developer Relations.

App & System Services iCloud & Data

Aug ’25

NSTableView.reloadData(forRowIndexes:columnIndexes:) causes wrong subview layout when usesAutomaticRowHeights = true

I have a table view where each row has two labels, one left-aligned and one right-aligned. I would like to reload a single row, but doing so causes the right-aligned label to hug the left-aligned label. Before the reload: After the reload: Reloading the whole table view instead, or disabling automatic row height, solves the issue. Can a single row be reloaded without resorting to these two workarounds? I created FB13534100 1.5 years ago but got no response. class ViewController: NSViewController, NSTableViewDataSource, NSTableViewDelegate { override func loadView() { let tableView = NSTableView() tableView.translatesAutoresizingMaskIntoConstraints = false tableView.dataSource = self tableView.delegate = self tableView.usesAutomaticRowHeights = true let column = NSTableColumn() column.width = 400 tableView.addTableColumn(column) let scrollView = NSScrollView(frame: CGRect(x: 0, y: 0, width: 500, height: 500)) scrollView.translatesAutoresizingMaskIntoConstraints = false scrollView.documentView

UI Frameworks AppKit AppKit

137

Aug ’25

Reply to DocumentBrowser toolbar behavior in SwiftUI apps

Hi Ziqiao, the problem is that when you want to use SwiftData for an enterprise app, the user needs proper navigation. In such apps, you usually have more than one screen or form. I did some additional tests with your code and replaced the NavigationStack with a NavigationView. The reason is that I need the automatic two-column split for a sidebar menu and a detail view, not just a single view. The NavigationSplitView doesn’t seem to work as expected. Using it as a root view with an embedded TabView was my first attempt, but that didn’t work either. That’s why I tried embedding the NavigationSplitViews inside the TabView. When I replace your NavigationStack with a NavigationView, I get the automatic two-column view on iPad — but with a second navigation view below the DocumentGroup navigation view. This looks bugged. The NavigationSplitView also has issues with the back button and the document title in sheets. I’ll file a feedback report for now as you suggested and try to find a workaround

UI Frameworks SwiftUI

Aug ’25

Icon Composer warning "Failed to parse icontool JSON output."

When the Icon Composer file is imported into the project folder, and after building, there is a warning that says: Failed to parse icontool JSON output. Parts of the warnings show this: Entity: line 1: parser error : Start tag expected, '<' not found 211PNG ^ Entity: line 1: parser error : Start tag expected, '<' not found 211PNG ^ Entity: line 1: parser error : Start tag expected, '<' not found 211PNG ^ /* com.apple.actool.notices */ warning: Failed to parse icontool JSON output. Underlying Errors: Description: The data couldn’t be read because it isn’t in the correct format. Failure Reason: The data is not in the correct format. Debug Description: Garbage at end around line 6, column 0. /* com.apple.actool.compilation-results */ I have created the icon with png files in each layer group in icon composer. However the project is able to compile, and running shows the correct icon. What is the issue with this?

Developer Tools & Services Xcode Developer Tools

259

Aug ’25

iOS 26 crashes with CALayerInvalidGeometry when using magnifier on Webview

I have a Net8 Maui WebView app and whenever I use magnifier, it crashes. The magnifier works on iOS18 and lower but crashes on iOS26+ Exception **Type:** CALayerInvalidGeometry **Value:** CALayer position contains NaN: [nan 65]. Layer: >; sublayers = (, ); opaque = YES; allowsGroupOpacity = YES; anchorPoint = CGPoint (inf 0); opacity = 0> Stacktrace __exceptionPreprocess in unknown file [Line null, column null] (Not in app) objc_exception_throw in unknown file [Line null, column null] (Not in app) +[NSException raise:format:] in unknown file [Line null, column null] (Not in app) CA::Layer::set_position in unknown file [Line null, column null] (Not in app) -[CALayer setPosition:] in unknown file [Line null, column null] (Not in app) -[UIView _backing_setPosition:] in unknown file [Line null, column null] (Not in app) -[UIView setCenter:] in unknown file [Line null, column null] (Not in app) -[_UIEditMenuContentPresentation _displayPreparedMen

Safari & Web General

284

Aug ’25

Promotional Offer ID column is empty in Subscriber report for redeemed offer code

When redeeming a custom offer code, I'm not able to see the actual offer code ID in the Subscriber report - only the subscription offer name is present. I'm going off of the documentation for the Promotional Offer ID column: A code that you create for customers to enter and redeem the subscription offer. https://developer.apple.com/help/app-store-connect/reference/subscriber-report Is the documentation wrong? How are we supposed to measure the performance of our offer codes beyond the initial redemption? For example, with the offer name I can see how my Holiday Promos offer is doing but can't see the actual performance of BLACKFRIDAY30 vs MOTHERSDAY30.

App Store Distribution & Marketing App Store Connect API In-App Purchase Analytics & Reporting

636

Aug ’25

Reply to Bundling app with our own SQLite

Can we bundle our app with our own version of SQLite with extensions that we want. Yes, and you should do that. The version that Apple includes depends on the iOS version (see https://github.com/yapstudios/YapDatabase/wiki/SQLite-version-(bundled-with-OS) for a table). If you use the Apple version, there's a danger that your app will break after an iOS update, or will not function on an older iOS version that you are still trying to support but don't test on as well as you should. I was caught out by the latter issue because the sqlite in iOS 14 doesn't support on conflict without a column list.

App & System Services iCloud & Data

Aug ’25

Reply to Swift 6 Minimum Requirement for App Store

While I can't predict the future or comment on anything future looking, I'd like to color in some details of the complier so you have a more complete understanding of how things work, in hopes that you can use this information to inform your own decisions around adopting Swift 6. If you take a look at the Xcode support page and look at the table of Xcode versions, you'll notice the Swift column has two sets of data — the complier version, and language modes. As you stated, Swift 6 was released with Xcode 16, and you can see that in the version number of the complier in the chart. Every Xcode release has one version of the Swift complier, and so that means every app that has compiled with Xcode 16 or newer has already compiled with the Swift 6 complier. Your question here is better stated as what is the longevity of the Swift 5 language mode? The language mode (which you'll find in your project as the SWIFT_VERSION build setting) is the version of the language the compiler is using for its compilation

App Store Distribution & Marketing App Store Connect

Aug ’25

Label text in UISplitViewController primary column not respecting dark mode in iOS 26 beta 4

In iOS 26 beta 4 (build from July 2025), there is a visual issue when using a UISplitViewController. Specifically, the text color of labels in the primary column does not adapt correctly to Dark Mode. This includes navigation bar titles and labels inside UITableViewCells. Regardless of system appearance settings, the text remains black, making it unreadable when the system switches to Dark Mode. To reproduce this, create a new iOS project using UISplitViewController with the .doubleColumn style. In the primary column, embed a UIViewController that contains a navigation title using navigationItem.title, and a UITableView showing a list of items. Run the app on a device or simulator with iOS 26 beta 4. Then switch the system appearance to Dark Mode using Control Center and observe the interface. The expected result is that all labels in the primary column, including the navigation title and table view cell labels, should automatically update to a light text color in Dark Mode. This be

UI Frameworks UIKit iOS

Jul ’25

SwiftUI & Xcode 26.0 beta3: Using Map in LazyVGrid causes "Observation tracking feedback loop"

The following code causes an error in Xcode 26.0 beta3 in iOS Simulator with iOS 26.0. After starting the App, scroll to the end of the grid and the app will break. Testet with Xcode Playground with platforms: [ .iOS(17.0)], Simplest possible variant: import SwiftUI import MapKit struct ContentView: View { var body: some View { NavigationStack { ScrollView { LazyVGrid(columns: [GridItem()]) { ForEach(1...12, id:.self) { i in Text(Hello (i)) .frame(height: 150) } Map { } .frame(height: 150) } } } } } Thrown error: Observation tracking feedback loop detected! Make a symbolic breakpoint at UIObservationTrackingFeedbackLoopDetected to catch this in the debugger. Refer to the console logs for details about recent invalidations; you can also make a symbolic breakpoint at UIObservationTrackingInvalidated to catch invalidations in the debugger. Object receiving repeated [updateProperties] invalidations: ; layer = > contentView=0x0000000103026000 These three nested views are necessary to reproduce the erro

UI Frameworks SwiftUI MapKit

388

Aug ’25