Microsoft Edge is set to retire the Edge Drop feature, which allowed users to send messages, files, and photos to themselves within a single thread. The feature will be discontinued as part of a strategy to prioritize artificial intelligence capabilities in the browser. Edge Drop has been integrated into the Sidebar of Edge on desktop and has not seen widespread adoption, with users potentially turning to alternatives like WhatsApp or Telegram for similar functionality. Users can still access their files through OneDrive after the Drop feature is phased out.