WhatsApp is rolling out a new username feature that allows users to connect without sharing their phone numbers. Users can reserve their desired username starting this week, with the full feature expected in the coming months. This update aims to enhance user privacy by hiding phone numbers from new contacts and businesses, requiring them to use the username and an optional key for initial contact. AI
IMPACT Enhances privacy for users of a major communication platform.
RANK_REASON This is a product update for a widely used messaging application, not a core AI development.
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