Twitter has announced about three new features for Direct Messages which are read receipts, typing indicators, & weblink previews.
These features will be rolled out over coming days to users on iOS and Android. Read receipts, similar to Facebook and WhatsApp, allow users to see when their messages have been read by the recipients. The feature is available by default, however users can turn it off from settings.
Three dots appear next to the profile pictures when the DM recipients are typing the reply.
Read Receipts and Typing Indicators are not available for desktop users, but replied sent from desktop will generate read receipts. Desktop users will have access to Weblink previews along with mobile users.