Android O Features and APIs Android O introduces a variety of new features and capabilities for users and developers. This document highlights what's new for developers. Make sure to check out Android O Behavior Changes to learn about areas where platform changes may affect your apps. Notifications In Android O, we've redesigned notifications to provide an easier and more consistent way to manage notification behavior and settings. These changes include: Notification channels: Android O introduces notification channels that allow you to create a user-customizable channel for each type of notification you want to display. The user interface refers to notification channels as notification categories. To learn how to implement notification channels, see the Notification Channels guide. Snoozing: Users can snooze notifications to reappear at a later time. Notifications reappear with the same level of importance they first appeared with. Apps can remove or upd