WhatsApp has recently submitted an update as of new beta through their Google Play program, Beta Program, and the version has bought up to 2.21.3.13 as reported by WABetaInfo,
The new feature is about a new badge. It is quite simple as when a user of WhatsApp receives a tag or mention in any group chat, automatically new badge would get added in group cell.
The feature is currently under development and it is expected that it will soon be available in their future update. Moreover, a New Sticker Pack of WhatsApp has released with new attractive animated sticker pack named “Taters n tots”. However, it is also available for the previous versions also.