Notifications have been redesigned in How to Download and Install iOS 15, adding contact photos for people and larger icons for apps. To reduce distraction, a notification summary collects notifications together for delivery at an appropriate time and arranges notifications by priority.
Focus is a new feature that can filter notifications and apps based on what a user wishes to focus on at a certain time. When a user’s Focus is blocking incoming notifications, their status will be displayed to others in Messages. iOS will suggest a Focus for different occasions, such as work hours or winding down for bed, using on-device intelligence, but users can also create a custom Focus. When a Focus is set on one Apple device, it automatically applies to other Apple devices.