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April 2021 - IRIS v5.2 Released
No change.
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December 2019 - IRIS v5.1 Released
No change.
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April 2019 - IRIS v5.0 Released
No change.
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February 2016 - IRIS v4.0 Released
Immaterial change. Minor revision to definition language in order to align consistency of metric with catalog's structure and style.
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February 2014 - IRIS v3.0 Released
No change.
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October 2011 - IRIS v2.2 Released
No change.
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January 2011 - IRIS v2.1 Released
No change.
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August 2010 - IRIS v2.0 Released
Material change. Environmental Impact Objectives (OD 4108) and Social Impact Objectives (OD6274) replaced Development Objectives (DES7). Metric bifurcated to increase specificity by accounting for environmental and social objectives separately.
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August 2009 - IRIS v1.0 Released
New metric. Development Impact Objectives (DES7) developed via Original IRIS Working Group.