WhatsApp is probably one of the most updated mobile apps these days, and recently, rumors about its Android and iOS versions imply that it may eventually include video calling.

According to Phone Arena, the latest possible addition will allow the user to view herself through a small window on the top part of the screen. The small window, which shows the "selfie video," can be moved around the screen for a more practical location. The primary and secondary cameras can also be interchanged while using the video calling feature of WhatsApp.

Currently, the recently released WhatsApp updates have not featured video calling yet, but according to the website, WhatsApp update 2.12.16.2 for iOS was supposed to have one.

The addition of multiple tabs for chats is also a new feature on the said WhatsApp update. This will allow users to switch back and forth to several chat groups by just using the tabs. Meanwhile, Blorge revealed some of the best features of WhatsApp this 2015, which include preview of links, voice calling, saving of chats and bookmarking reference. In addition to those features are the removal of unwanted chats and last seen feature.

WhatsApp is no doubt one of the most loved mobile apps, and recently, HackerNews reveal how you can actually crash your friends WhatsApp by just sending a smiley. It's something that almost everyone fears, but with the several numbers of smileys included on the WhatsApp's updates, it's not impossible that one user could send you a simple smiley not just twice, but 4,000 times. Sending a smiley is as easy as selecting and pressing the send icon, significantly 10 times faster than sending a text message.

In a blog posted on HackaTrick, they mentioned how WhatsApp allows too much number of characters in the messaging panel, something that readily causes the app to crash.

The blog post read, "In WhatsApp web, WhatsApp allows 65500-6600 characters. But after typing about 4200-4400 smiley browser starts to slow down. But since the limit is not yet reached so WhatsApp allows to go on inserting. So it crashes while we type and send and in mobile too when it receives it overflows the buffer and it crashes."

Users may have to be very careful and responsible when sending messaging in order to avoid incidence as this. Are you eager to try WhatsApp's video calling feature on Android and iOS?