How to notify your WhatsApp contacts that you change your number

And one day, the drama came true: we have to change our phone number. And, with it, the arduous task of having to communicate the new telephone number to all our contacts. Surely more than once we have thought that WhatsApp would do the process on its own. Well, nothing to worry about: in the new beta version of the application we found a new function in this regard.

Automatically notify you of the change of number through WhatsApp

Specifically, it is version number 2.17.375 of the WhatsApp Beta version. In this new version, when we change phones, our contacts will automatically be notified that this has happened. Without us having to do anything at all. Simply, when we change the number, the contacts that we had in the agenda would receive a notification. Of course, we will be able to choose which users we want to know and which ones we prefer not to. Because, sometimes, we change our number precisely so that some of our contacts don't know more about us.

To be able to install the Beta version of WhatsApp we must be registered in its test group. To do this, you must enter this link. If you already have WhatsApp installed, you will receive an automatic update notification. If not, you just have to enter the Play Store and download it yourself.

More WhatsApp news... and a major security breach

This new version will have a smaller size than previous versions. In total, we find ourselves with an installation file that is 6 MB smaller than the previous ones, due to the removal of 20 libraries that were previously added. In addition, the new version has come to fix nothing less than 473 minor bugs Also, as we read on the GadgetSnow page, a software engineer named Rober Heaton has just discovered a major vulnerability in the application. It is that when we have activated the 'Connected Status' in our WhatsApp, they can track our activity. All you need is a laptop, WhatsApp Web and a Chrome extension.

Rober Heaton, to demonstrate the vulnerability of the WhatsApp application, set out to track the activity of some of his WhatsApp contacts. As he exactly states on his own blog, he only had to add four lines of javascript to have a full trace of any of his contacts.With this code alteration, Heaton could see, exactly, what was the last connection time of his contacts on WhatsApp.

WhatsApp business and message revocation. For when?

Fall after fall, WhatsApp seemed to be announcing big imminent changes to its app. Specifically, a couple of changes that revolutionize the concept of the app: delete messages that have already been sent and WhatsApp accounts for professional businesses. The revocation of messages, although it is not yet implemented even in the Beta version, we have it on the verge of candy. In the FAQ section of WhatsApp we already have a section about it.

What about business accounts? A simple way for companies we trust to get in touch with us through messages.Messages that, of course, we can block, so they don't bother us anymore. Will WhatsApp business accounts mean the end of annoying promotional calls from operators? We will know this as more and more companies sign up for this new communication model. There are already companies that have signed up to create a new business account, but its use has not yet become widespread.