The leak comes from version 2.22.20.12 of the WhatsApp beta app for Android
In version 2.22.20.12 of the WhatsApp beta for Android, the folks from WABetaInfo found that WhatsApp is currently working on a way to let the app replace your sent messages with their edited counterparts. Furthermore, in order to read a received edited message, WhatsApp will prompt you to install the latest version of the app — once the edit function comes out, of course.
At the moment, it's still a mystery how much time WhatsApp will give you to edit your already-sent messages. We should also note that the feature is currently in development, and sadly, there is no information on when WhatsApp will release it to the public. However, we can be sure that it is coming.Get the most important news, reviews and deals in mobile tech delivered straight to your inbox