March 2016 - IRIS v4.0 Released (current version)
March 2014 - IRIS v3.0 Released
Immaterial change. Minor revision to definition language for clarity.
November 2011 - IRIS v2.2 Released
February 2011 - IRIS v2.1 Released
Material change. Permanent Employee Wages (OI9677) replaced Wages (OI9011). Metric name and definition language modified to isolate permanent employees by excluding temporary employees.
September 2010 - IRIS v2.0 Released
New metric. Wages (OI9011) developed via IRIS Taxonomy Development Group.