Last December, WhatsApp announced support for picture-in-picture (PiP) for video calls on the iPhone. It was initially available to beta users, but is now rolling out to all users worldwide with iPhones running iOS 12.0 or later.

PiP support for video calls on WhatsApp for iPhone is rolling out with WhatsApp version 23.3.77, allowing users to multitask during a WhatsApp video call by minimizing the WhatsApp app.
But that’s not all. With our new update, you can now add captions when sending your documents. For more information, check out the changelog for the update below.
- With iOS Picture in Picture (PiP) support, you can now multitask during a WhatsApp call without pausing the video.
- Captions can now be added when sending documents.
- Added support for longer group subjects and descriptions to make group descriptions easier.
- You can now create a personalized avatar and use it as a sticker or profile picture.go to setting > Avatar start.
Source | Via