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 Sold (PI1263) replaced Number of Units Sold/Distributed (EE4). Metric name modified to increase clarity.
September 2009 - IRIS v1.0 Released
New metric. Number of Units Sold/Distributed (PI1263) developed via Original IRIS Working Group.