Yahoo and Verizon are aiming to introduce a new messaging platform - Yahoo Together. It is basically designed for group chats between family, friends, and also interest groups. It allows users to separate out conversations into different topics just similar to IRC chat.
Since several months, the app is in the beta form. Though it is built on the same messaging app it still seems to include features from the existing technology from Yahoo Messenger.
Together is trying to compete with products like Facebook Messenger and Whatsapp with more organisational tools like Slack. It also supports file attachments and includes an improved search interface making older chats easier to navigate.