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June 2022 - IRIS v5.3 Released (current version)
Immaterial change. Minor revision to usage guidance for clarity.
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January 2020 - IRIS v5.1 Released
Immaterial change. Minor revision to Usage Guidance for clarity.
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May 2019 - IRIS v5.0 Released
No change.
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March 2016 - IRIS v4.0 Released
Immaterial change. Minor revision to metric name in order to align with the catalog's structure and style.
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March 2014 - IRIS v3.0 Released
Immaterial change. Individuals Receiving Training: Group-Based Training (PI7997) replaced Group-based Training (PI7997). Minor revision to metric name and definition language for clarity.
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November 2011 - IRIS v2.2 Released
No change.
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February 2011 - IRIS v2.1 Released
No change.
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September 2010 - IRIS v2.0 Released
Immaterial change. IRIS ID changed due to framework upgrade. Minor revision to definition language for clarity.
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September 2009 - IRIS v1.0 Released
New metric. Group-based Training (CD18) was developed via the Original IRIS Working Group.