March 2016 - IRIS v4.0 Released (current version)
March 2014 - IRIS v3.0 Released
Material change. Metric definition and response format modified to provide clarity based on best practices and standard guidance.
November 2011 - IRIS v2.2 Released
February 2011 - IRIS v2.1 Released
September 2010 - IRIS v2.0 Released
Material change. Green Building Practices (OI6765) replaced Employs Green Building Practices (OF46). Metric name and definition language modified to increase specificity by allowing for selection of practices used.
September 2009 - IRIS v1.0 Released
New metric. Employs Green Building Practices (OF46) developed via Original IRIS Working Group.