March 2016 - IRIS v4.0 Released (current version)
Immaterial change. Minor revision to metric name and definition language 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. Departing Employees: Full-time (OI3653) replaced Departing Employees (OE12). Metric modified to clarify desired occupational status of employees.
September 2009 - IRIS v1.0 Released
New metric. Departing Employees (OE12) developed via Original IRIS Working Group.