WhatsApp is currently developing a new update that will allow you to cancel a message within five minutes of sending it.
According to a report in the Daily Mail, the option to edit or delete the message will only be available if the other party has not read the message sent - marked with two blue Vs.
The option is supposed to be 'default' and only work with the device user's permission. WhatsApp has not yet confirmed the details.
The new WhatsApp update may also include options such as sharing location with other users more accurately, and new fonts for captions.