By Nermeen Nabil Khear 
Mishaal Rahman / Android Authority
TL;DR
- The first Android 16 developer preview adds a feature called notification cooldown that gradually lowers the volume of successive notifications from the same app.
- This feature was first spotted in a developer preview of Android 15 but it never rolled out in the stable or any of the quarterly releases.
- However, the toggle to stop your phone from vibrating like crazy when successive notifications come in hasn’t been implemented.
Google just released the first developer preview of Android 16 today, which surprised many people as developer previews of major Android releases usually don’t drop before February. However, Google is shifting Android’s launch schedule forward, which is why DP1 is here so early. You might think that because DP1 is here already that it doesn’t have any exciting new features, but you’d be wrong. For example, DP1 finally delivers the long-awaited notification cooldown feature that will save you from notification spam.
After installing Android 16 DP1 on my Pixel 9 Pro, I noticed that there was now a new toggle to enable notification cooldown under Settings > Notifications > Notification cooldown. This feature, when enabled, gradually lowers the volume of successive notifications that come from the same app. In other words, notification cooldown prevents your phone from blaring its notification tone wildly when you receive a ton of notifications in a very short time.