By tapping on Request Money, you can enter the amount you want to receive and send the request. Depending on whether the request is accepted or declined, the transaction status gets updated in the Payments menu under Settings. All requests expire in 24 hours.
WhatsApp now lets users download deleted media from its servers. And under the new vCard indexing feature, if an unknown user sends you a message and you have already received his contact card (vCard) from someone else, you will be alerted to save the vCard.