Android 4.3 doesn’t appear to be anything drastic, but it is just full of under-the-hood changes. The latest change deals with Android’s powerful notification system, and, believe it or not, actually makes the notification shade even more robust. The biggest problem with many third-party apps in the Play Store today is that the only thing that can directly clear or touch notifications created by Android or other apps is the Android system itself. Many apps like DashClock have hit this roadblock, and things like smartwatches have definitely struggled to use workarounds to keeping notifications synced and cleared up.
A recent change discovered in Android 4.3 is new code dealing with Android’s notification system, complete with a settings shortcut to notifications history. This change would allow things like DashClock or Google Glass to manage your device’s notifications without having to clear them on the notification itself. This would be a gigantic asset to the swarm of impending smartwatches on the market, as well as many other kinds of wearable technology that pairs with your Android device.
Hopefully we won’t have to wait too much longer for Android 4.3 to become official so we can see this in action.
source: Android Police