Is a welcome development, I recently had issues with my phone and my WhatsApp was uninstalled, when I installed it back, most of the messages I had and some groups I joined plus some other things I had including vital information were all wiped out, so if they bring a new feature that could allow us log out just like Facebook and Twitter and at the end of the day after logging in you still retain your messages then is a welcome development. And this is one thing about technology that I enjoying because it leaves room for improvement, probably a lot of persons might have complained about losing their information whenever they uninstall their WhatsApp so they quickly had to come up with something to fix that error.
This new development by WhatsApp, although I've not tried it yet but it was a good idea that's been long anticipated by many especially for people who use iPhones and do not find alternative means to saving their documents on WhatsApp unless through the online storage. WhatsApp coming up with this new feature saves us a whole lot of worries about transferring WhatsApp data from one device to the other or moving it to the cloud. You just log out and log in again. But my question since I've not try it before is, does the data remain the same when you login a new phone number from same device? Do you have to merge data from the previous account with the new account or what exactly?