To check if a Google Play system update is available, tap Google Play system update. Check for an update: To check if a security update is available, tap Security update. To check if an update is available: Open your device’s Settings app. The feature was introduced in the first developer preview as a more granular control method for notification settings, then it was further modified in the second developer preview with some shuffling and renaming of the different levels and the addition of a sixth one, and now in the third developer preview, we're seeing one more option: Automatic importance. Most system updates and security patches happen automatically.

The saga of 'full importance' notification levels in Android N continues. This Auto toggle lets you restore that setting back to its original state, giving the decision back to the developer. But if you decide to go the full importance route, you get to manually set each app's priority level, which overrides the freedom given to the developer to make the decision. The shortcut to open the System UI Tuner, which is hidden on Android 6.0 and above phones. It's how all notifications work by default. Android already lets developers control priority on a notification-by-notification basis (see 'Correctly set and manage notification priority' section here). As many of you pointed it out, it looks like the automatic feature isn't new, even though the star toggle is actually new in N in full importance / power notification mode.

System ui tuner google play