WhatsApp has rolled out an update for the Android app on the Play Store, which brings features that have been available on the beta for a while now. One of the new features is the ability to mute contacts individually, whereas previously you could only mute groups. You can now also mark chats as rear or unread. WhatsApp also added some new emoji, like the middle finger and spock emoji, and now you can choose different skin colors for some of the emoji. There is now also an option to reduce call quality and use less data. Lastly, there is now support for Urdu and Bengali languages. You can download the update now from the Play...
Source: http://www.gsmarena.com/whatsapp_for_android_gets_updated_adds_new_emoji_and_features-news-13689.php