WhatsApp new features as announced on its official Twitter handle.
1) Leave groups silently is a New feature that will only notify the admin when you leave a group chat.
That means you can decide when to make a quiet exitwithout everyone knowing
There are two more new privacy features rolling out soon:
1) Online presence puts you in control of who can and can't see when you're online.
2) Screenshot blocking for view once means your photos and videos will be protected from screenshots.