March 2016 - IRIS v4.0 Released (current version)
March 2014 - IRIS v3.0 Released
Material change. metric name and definition language modified to provide clarity based on best practices and standard guidance.
November 2011 - IRIS v2.2 Released
Immaterial change. Client Individuals: Disabled (PI6266) replaced Clients: Disabled (PI6266). Definition language and metric name revised for clarity.
February 2011 - IRIS v2.1 Released
September 2010 - IRIS v2.0 Released
Immaterial change. Clients: Disabled (PI6266) replaced Demographic Served: Disabled (DES13.4). IRIS ID / metric name changed due to framework upgrade. Minor revision to definition language for clarity.
September 2009 - IRIS v1.0 Released
New metric. Demographic Served: Disabled (DES13.4) developed via Original IRIS Working Group.