WhatsApp is rolling out a new way for people to add and message contacts using usernames instead of automatically sharing phone numbers. Multiple outlets report that WhatsApp begins offering username reservations this week, with the actual username feature set to launch later in the year and roll out gradually over the coming months. WhatsApp positions the change as a privacy upgrade, saying it helps protect users’ phone numbers—particularly when someone is added to a group, or when they are contacted for the first time by someone who is not already in the user’s contacts.

Reporting across outlets says users will be able to reserve a username in the app by updating to the latest version and going to the account username settings. The reservation process checks availability immediately and offers alternatives if the first choice is taken. WhatsApp also says there is no directory browsing or suggestion-based discovery, meaning new contacts must know the exact username to reach someone.

Some sources also note additional controls, including an optional “username key” PIN-like mechanism intended to prevent strangers from messaging a user even if a username is shared publicly. WhatsApp says it will notify users when usernames become available in their country, and that creators, small businesses, and organizations can claim usernames they already use on Instagram or Facebook.