WhatsApp is reportedly working on its upcoming username-based search and calling feature, with the newest iOS beta indicating continued development. The update shows work on displaying usernames when users look up unfamiliar phone numbers, along with limited profile details, while keeping numbers hidden during username searches. The feature is planned for release next…WhatsApp is reportedly working on its upcoming username-based search and calling feature, with the newest iOS beta indicating continued development. The update shows work on displaying usernames when users look up unfamiliar phone numbers, along with limited profile details, while keeping numbers hidden during username searches. The feature is planned for release next…