March 2016 - IRIS v4.0 Released (current version)
Immaterial change. Minor revision to usage guidance for clarity.
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. Board of Directors: Minority/Previously Excluded (OI6696) and Board of Directors: Female (OI8118) replaced Board of Directors: Diversity (OG1.1). Metric bifurcated in order to better distinguish between females and minority groups.
September 2009 - IRIS v1.0 Released
New metric. Board of Directors: Diversity (OG1.1) developed via Original IRIS Working Group.