A regression in iOS 17 causes incoming banner notifications to interrupt VoiceOver speech when the “Speak Notifications” accessibility setting is enabled.
Specifically, any time a new notification banner appears, VoiceOver will immediately stop reading the current on-screen text or menu to announce the notification. This interrupts VoiceOver mid-sentence or mid-menu in a disruptive manner.
In previous iOS versions up to iOS 16, VoiceOver would finish reading the current paragraph, sentence, or menu before speaking a new notification. This prevented jarring mid-sentence interruptions.
The new interruption behaviour makes VoiceOver speech more difficult to comprehend for users who rely on the feature to read on-screen content aloud. It also disrupts navigation of menus and apps.