March 2016 - IRIS v4.0 Released (current version)
March 2014 - IRIS v3.0 Released
November 2011 - IRIS v2.2 Released
February 2011 - IRIS v2.1 Released
September 2010 - IRIS v2.0 Released
Material change. Units/Volume Produced (PI1290) replaced Number of Units Produced (EE3). Metric name modified to increase clarity.
September 2009 - IRIS v1.0 Released
New metric. Number of Units Produced (EE3) developed via Original IRIS Working Group.