With Siri AI on in iOS 27, the top-center swipe opens Siri; Notification Center moves to a top-left swipe. There’s no toggle to restore the old center gesture.
When iOS 27 and iPadOS 27 land today, one of the first habit changes for people who turn on Siri AI is where Notification Center lives.
9to5Mac’s hands-on (updated through late betas) describes the behavior that is shipping:
There is no Settings toggle to keep the center swipe assigned to Notification Center once Siri AI is enabled — you either leave Siri AI off, or rebuild the habit around the left edge.
This is a release-day how-it-works note, not a feature opinion piece. It pairs with today’s OS 27 update how-to and the earlier Siri AI language / availability caveats. Siri AI still requires Apple Intelligence–capable hardware and is not a universal flip for every iPhone that can install iOS 27.