Google has replcaed it chat app with hangout with new features and functioanlities added
Its not yet available to all android versiosn as of now but will be available soon for all
● Say more with photos and emoji.
● See when people are together in Hangouts, when they’re typing, or whether they’ve seen your message.
● Turn any conversation into a video call with up to 10 friends.
● Message friends anytime, even if they’re not connected right now.
● Use Hangouts on computers, Android and Apple devices.
More Hangouts awesomeness:
● Hangouts stay in sync across devices so you can start or continue them anywhere.
● Choose from hundreds of emoji to help you make your point
● See what you talked about in the past, including shared photos and your video call history.
● Get notifications just once. Once you see an alert, you won’t see repeats on your computer or other Android devices.
● View collections of photos shared from each of your Hangouts.
● Snooze notifications at times when you’d prefer to be undisturbed by alerts.