The upcoming 'Expiring Media' feature has been discovered by independent WhatsApp experts WABetaInfo. Once enabled, WhatsApp users will be given the option to send media that expires by tapping a new Expiring Media button next to the message box. Not all image, video or GIFs will automatically delete themselves – only the ones that were sent with the Expiring Media button switched on. Generally, when WhatsApp users delete their messages, they are replaced by a box saying 'this message was deleted'. Generally WhatsApp users have the option to save photos send to them to their camera roll on their smartphone.
Source: Daily Mail September 29, 2020 14:38 UTC