March 2016 - IRIS v4.0 Released (current version)
Immaterial change. Minor revision to definition language for clarity.
March 2014 - IRIS v3.0 Released
Material change. metric name and definition language modified to provide clarity based on best practices from the Health Working Group.
November 2011 - IRIS v2.2 Released
Material change. Client Individuals Receiving Free Services (PI9622) replaced Client Receiving Free Services (PI7563). Metric modified to maintain consistency with changes to IRIS structure.
February 2011 - IRIS v2.1 Released
September 2010 - IRIS v2.0 Released
New metric. Client Receiving Free Services (PI7563) developed via IRIS Taxonomy Development Group.