New accounts will remain linked to the WhatsApp app, you can use them at the same time and not log in each time. To add a new account to the app, you need to click on the arrow icon next to the QR code button. You will have to switch between accounts from the same menu.
“This is an incredibly useful feature for those who have multiple WhatsApp accounts and currently use two devices to work on,” the developers said in a message.
Source: Ferra

I am a professional journalist and content creator with extensive experience writing for news websites. I currently work as an author at Gadget Onus, where I specialize in covering hot news topics. My written pieces have been published on some of the biggest media outlets around the world, including The Guardian and BBC News.