X LAUNCHES CUSTOM TIMELINES FOR CURATED FEEDS

Nikita Bier, X's head of product, announced the update as "one of the biggest changes to X" and described it as a "huge undertaking" requiring months of development. The custom timelines feature enables users to create personalized feeds focused on their hobbies and interests. Users can pin specific topics to their home tab and toggle between different timelines to see the latest conversations relevant to each interest. Bier indicated the feature is powered by AI technology, though full details on its underlying infrastructure remain limited. The update addresses long-standing user requests for better feed control and more granular content filtering. The rollout represents a significant shift in how X structures user engagement, moving away from a purely algorithmic timeline toward user-defined content organization. The feature is now available to X users.