Twitter is now X - following a rapid rebrand from the app's new owner, Elon Musk. Musk announced the shift over the weekend in a series of tweets - soon to be called "X's."
By Tuesday, Twitter's iconic blue bird was replaced with a black-and-white X on desktop versions of the site.
These changes are yet to appear with the app. But not everyone agrees with this decision.
Some critics are saying it is likely to further alienate the app's fanbase.
New York Times' technology reporter Ryan Mac spoke to Ingrid Hipkiss.