What does it mean if a drawing has a revision cloud?

A revision cloud is a visual indicator used in construction drawings to signify areas that have undergone changes compared to a previous version of the drawing. When a cloud shape is drawn around specific sections, it alerts viewers that modifications have been made, prompting them to review those particular areas for the latest details or updates. This tool is crucial in architectural and engineering contexts, as it helps facilitate communication among team members about what has changed, ensuring that everyone is working with the most current information. By highlighting areas that have been modified, the revision cloud plays a significant role in maintaining accuracy and clarity in project documentation.