WhatsApp for BB10 has been updated to version 2.1.325.2. The update adds a decent set of changes. For instance, the emoji picker for Q-series devices has been updated, and inline picture thumbnails for landscape photos are now larger on Q-series devices as well. The Chat bubbles now support multiple text messages per bubble, sharing, and multi-selection. The contact info screen has been redesigned. The message status icons have become visible in the Hub on BB10 v10.2.1. The titlebar on the main screen and chat screens has been painted a pleasant shade of blue-green. Finally, various Hub account related issues and miscellaneous bug-fixes have been sorted out.
As usual, you can find the latest version of WhatsApp in BlackBerry World.