The topic iOS 27 just broke 15 years of muscle memory on iPhone and iPad is currently the subject of lively discussion — readers and analysts are keeping a close eye on developments.
This is taking place in a dynamic environment: companies’ decisions and competitors’ reactions can quickly change the picture.
Since iOS 5 in 2011, the iPhone and iPad have included Notification Center, a central place to find alerts from various apps in chronological order. Starting with iOS 27, Apple is making a major change to how users open Notification Center on iPhone and iPad.
Opening Notification Center is unchanged on iOS 27 and iPadOS 27 by default. However, enabling Siri AI changes a key swipe gesture on both iPhone and iPad.

One of the many ways of invoking Siri AI, once enabled, is by swiping down from the center of the top edge of your iPhone or iPad display. This previously opened Notification Center.
You can still access Notification Center by swiping down from the top-left corner once Siri AI is enabled.
Apple is greatly prioritizing Siri AI access, however, as the majority of the top edge is devoted to invoking the new Siri experience.
The last time Apple made a change to accessing Notification Center came when Control Center moved from a swipe up gesture from the bottom to a top-right corner swipe down gesture on iPhone X. Apple later unified this experience across devices.
Now it’s Notification Center’s turn to be put in the corner. On the iPad in particular, the area above Home screen app icons is pretty much devoted to invoking Siri AI. The area for opening Notification Center actually shrinks if you disable displaying AM/PM or the date.
After 15 years of muscle memory, it’ll take some time to determine if this change is worth it or something that should be reconsidered. In the meantime, early feedback sounds overwhelmingly positive around Apple’s new Siri AI system. Hearing that Siri is good now will also take some getting used to, I’m sure.
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