Version: iOS 18.1 and later (works as expected on iOS 18.0 and earlier) Area: SpringBoard / Notification Center / App Icon Rendering Description: When changing the app's alternate icon using UIApplication.setAlternateIconName(_:completionHandler:), the icon is updated correctly on the Home Screen and App Switcher. However, in Notification Center, the old app icon is still shown for notifications, even after the change has completed. This issue only occurs on iOS 18.1 and later. In iOS 18.0 and earlier, Notification Center correctly reflects the updated icon. - Steps to reproduce: Create an iOS app with alternate app icons configured in the Info.plist. Use UIApplication.shared.setAlternateIconName("IconName") to change the icon at runtime. Send a notification. Pull down Notification Center and observe the icon shown beside the notification. - Expected Behavior: Notification Center should reflect the updated (alternate) app icon immediately after the change. - Actual Behavior: Notification Center continues to display the old (primary) app icon. The new icon appears correctly on the Home Screen and App Switcher. Restarting the device does cause Notification Center to update and reflect the correct icon, which suggests a cache or refresh issue in SpringBoard or Notification Center. - Notes: Issue introduced in iOS 18.1; not present in 18.0. Reproduces on both physical devices and simulators. Occurs with both scheduled local notifications and remote notifications. Restarting the device updates the Notification Center icon, but this is not a viable user-facing workaround.

When changing the app's alternate icon using UIApplication.setAlternateIconName(_:completionHandler:), the icon is updated correctly on the Home Screen and App Switcher. However, in Notification Center, the old app icon is still shown for notifications, even after the change has completed. Rebooting or change the device's language causes the correct icon to appear. This issue only occurs on iOS 18.1 and later. In iOS 18.0 and earlier, Notification Center correctly reflects the updated icon. Could you provide insights into how iOS caches notification icons and how we can force a refresh for all users?

I have faced an issue related to the NSCollectionLayoutSection in UICollectionViewCompositionalLayout. Here is my code to set a section in collection view. let item = NSCollectionLayoutItem.init(layoutSize: .init(widthDimension: .fractionalWidth(1), heightDimension: .fractionalHeight(1))) let group = NSCollectionLayoutGroup.horizontal(layoutSize: .init(widthDimension: .fractionalWidth(1), heightDimension: .fractionalHeight(1)), subitems: [item]) section = NSCollectionLayoutSection(group: group) section.contentInsets = .init(top: 15, leading: 0, bottom: 0, trailing: 0) The above code works correctly on iOS versions less than 17. But on iOS 17, the content insets of this section always equal 0. This is an empty section; may this be a root cause on iOS 17? It would be appreciated if you could help me on this issue.