WhatsApp has started rolling out a new interface for voice calls. The latest rollout is specifically live for select beta testers on Android. It also carries waveforms for group voice calls. In addition to the new beta release carrying the updated voice call interface, WhatsApp has been spotted working on a new screen for responding s about their ban reviews. It seems to dynamically adjust the colour pallets on the basis of the theme chosen by the .
As per a WhatsApp for Android beta 2.22.5.4 has brought the updated voice calling interface to some s. A few s are also able to see the change on WhatsApp for Android beta version 2.22.5.3.

WhatsApp for Android is rolling out the new voice calling interface to select beta testers
Photo Credit: WABetaInfo
The interface was iOS s. It brings a more compact and modern experience.
WABetaInfo has also spotted that the interface brings waveforms when making group voice calls. These voice waveforms appear for all participants to inform s about the active speakers during the call.
Although the new experience is currently limited to some Android beta testers, WABetaInfo suggested that it would also be available to beta testers on iOS in the coming days.
Meanwhile, you need to be enrolled in Google Play Beta programme to the latest WhatsApp beta release for your Android device. You can alternatively the beta app in APK from APKMirror.
Alongside the latest change for beta s, WABetaInfo has separately WhatsApp is working on the screen that would respond s about the status of their ban review requests. The screen appears to be meant to the dark theme.

WhatsApp appears to have a new screen where it would respond s about their ban reviews
Photo Credit: WABetaInfo
WhatsApp was previously spotted working on the possibility of allowing review requests for bans last year. A similar screen was shown by WABetaInfo at the time. However, the earlier screen had icons in a light theme.
WABetaInfo reported that WhatsApp would introduce new reasons for banning s for violating its Commerce Policy. s are, however, said to have the ability to request for a review of their ban.
Exact details on when the updated procedure to request ban reviews will come into force are yet to be revealed. However, WABetaInfo has spotted the references about the new screen in WhatsApp for Android beta 2.22.5.3.