Google announced today on its Official Gmail Blog that it has released an update to the Android app for Gmail that brings new features, faster search, and other enhancements for certain users. Perhaps the most notable new feature is the ability to reply, archive, and delete from notifications with one tap—rather than having to open the app to sort and reply to mail:
You can combine this with existing notification features like the ability to customize which messages you receive notifications for and set up different sounds for individual labels. So if you filter and label all the messages from your mom, you could set a ringtone to let you know you received a new mail from her and then quickly reply (because we know what can happen when you ignore your mother!).
The feature is available to users running Android 4.1 and up, but Google is also rolling out faster search, bug fixes, and performance enhancements for Android 4.0 and up. Users on Android 2.2 and up will now have access to a “New Labels API for 3rd-party app developers” and the usual performance improvements.