November 12, 2010 - In the Geography category of The World Factbook, a new subfield, "volcanism," has been added under the "Natural hazards" field for countries with historically active volcanoes. The Economy section has been updated to reflect the most recent data for 2009 and earlier years.
World Factbook Updates - November 12, 2010 (https://www.cia.gov/library/publications/rss-updates/world-factbook-updates-november-12-2010.html)