One of the biggest highlights of the new Pin feature is that once you pin a chat, it will remain on the top of your chat list, irrespective of your dialogue or conversation timings with the individual or group concerned. Users will be able to see any new chats or conversations following the pinned chats.
How to Pin Chat?
>Tap and hold on any chat and you’ll get a new pin icon in the action bar next to the delete, mute, and archive functions.
For now, only 3 chats can be pin after which get a small toast notification message saying you can’t pin more.
iPhone users will have to wait slightly longer – but the feature is likely to come to at some point in the near future.
We are still expecting the un-send features to be rollout to beta users any moment from now.