March 2016 - IRIS v4.0 Released (current version)
Material change. Glossary and corresponding text in metric's usage guidance modified to clarify the issue of direct control in the case of third-party management of the land.
March 2014 - IRIS v3.0 Released
Immaterial change. Minor revision to definition language for clarity.
November 2011 - IRIS v2.2 Released
New metric. Land Area Directly Controlled (OI5408) developed via IRIS Taxonomy Development Group.