The IAU has approved 45 new names for surface features on Dione, including 34 craters, 3 catenae, 3 chasmata, 1 dorsa, and 4 fossae. Please see the list of Dione names in the Gazetteer of Planetary Nomenclature for more information.
The following five changes to existing names were also approved:
Amata was moved to a smaller, well-defined crater.
Carthage Linea was changed to Carthage Fossae.
Cassandra was moved to a smaller, well-defined crater.
Padua Linea was changed to Padua Chasmata.
The length of Palatine Chasmata was amended and the descriptor term was changed to the plural form.