According to WABetaInfo, WhatsApp users might soon enjoy an easier way to share contacts soon. The site revealed that the 2.20.171 beta version of the app features a QR code sharing function that allows users to scan or share contact details easily.
You'll be able to see a small QR icon on the top right corner of your settings page. Clicking this will display your QR code for friends to scan, while a second tab opens up a QR scanner for you to use on your friends' codes.
If your QR code somehow falls into the wrong hands, don't worry as you can reset the QR code and create a new one for an unlimited amount of times.
As this is currently a beta-only feature, we don't know if or when the feature will roll out to all users via an official update. But since it's a pretty no-brainer quality-of-life feature - I mean, QR codes were created in the 90s - it's pretty likely we'll be seeing this feature on our phones soon.