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Versions 2.0.4 and up support both Kepler and Atlassian licenses, but you only need one valid license to run the plugin, which can either be provided as the Power Scripts for JIRAjjupin.lic file, or as the key generated via the Atlassian Marketplace.
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The Kepler license is a file (Power Scripts for JIRAjjupin.lic) which must be placed in the <JIRA_HOME>/kepler folder.
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