iOS 26.4.2 Fixes Deleted Notification Retention Bug
Apple's iOS 26.4.2 fixes a bug allowing deleted notifications to be retained on iPhone. The update ensures notifications cannot be retrieved and retroactively purges stored copies, addressing a reported logging issue.

Apple highlights a Notification Services issue on its iOS 26.4.2 security updates webpage: Notifications marked for deletion could be unexpectedly retained on the device. The fix addresses a logging issue with improved data redaction.
Apple told 9to5Mac it became aware of reports that some push notifications from apps were retained on-device when they should have been deleted. The company identified the bug and implemented the fix in iOS 26.4.2.
The update not only fixes the bug but also retroactively purges any notification copies unexpectedly stored on-device.
The notification fix appears in iPadOS 26.4.2, iOS 18.7.8, and iPadOS 18.7.8.
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