enhancement-engines/nbactions.xml

<?xml version="1.0" encoding="UTF-8"?>
<actions>
        <action>
            <actionName>CUSTOM-newVersion</actionName>
            <displayName>newVersion</displayName>
            <goals>
                <goal>versions:set</goal>
            </goals>
            <properties>
                <newVersion>1.0.0-SNAPSHOT</newVersion>
            </properties>
        </action>
    </actions>