WhatsApp is introducing a new voicemail-like feature that allows users to leave voice messages when a call goes unanswered. This functionality is currently available in beta for Android users under version 2.25.23.21. The update aims to enhance communication by enabling instant voice replies to missed calls. Alongside this, WhatsApp has been rolling out other features including options to disable Meta AI elements, activate privacy enhancements, and new modes such as "superstar," "airplane," and "Iron Man" modes, which offer users additional customization and control over their app experience.