CNN's report on the Brussels airport diamond heist was updated after Monday. It was last updated on Wednesday morning.
The lead of the updated article is less breaking and more scene-setting. It starts, "Night had fallen. Some 20 airplane passengers had taken their seats for the short hop from Brussels, Belgium, to Zurich, Switzerland," It sets the scene instead of just summarizing the events.
The updated article gets more into the main news, adding details such as the robbery only taking three minutes.
The second story advances the news by adding a more detailed account of the event.