WhatsApp is apparently working on new disappearing messaging feature that will see messages automatically deleted after a certain amount of time.
This new feature was discovered by WABetaInfo in the latest beat of WhatsApp for Android, the software is versions 1.19.275.
The feature will not happen on all messages on the messaging platform, in order for it to be automatically deleted it will need to be marked as ‘disappeared’ we presume this will need to be done by the sender.
This will allow senders of WhatsApp messages to choose whether or not they want it deleted after a certain amount of time. It is not clear as yet on whether these messages will have a specific time limit or whether you will be able to choose this.
Source WABeta Info