March 2016 - IRIS v4.0 Released (current version)
Immaterial metric name change. Average Supplier Agriculture Yield: Total (PI2046) replaced Supplier Individuals Yield: Total (PI2046). Minor revision to metric name for clarity.
March 2014 - IRIS v3.0 Released
Immaterial change. Minor revision to definition language for clarity.
November 2011 - IRIS v2.2 Released
New metric. Supplier Individuals Yield (PI2046) developed via Agriculture Working Group.