*       maintains the original model version (4.2.0) instead of downgrading to 4.0.0 for Maven 3 compatibility.
 *       This allows modern features like mixins to be preserved in the consumer POM.</li>
 * </ul>
 * <p>
 * <b>Mixin Handling</b>: Mixins are only supported in model version 4.2.0 or later. If a POM contains mixins:
 * <ul>
 *   <li>Setting {@code preserve.model.version=true} preserves them in the consumer POM with model version 4.2.0</li>

        <field xdoc.separator="blank">
          <name>mixins</name>
          <version>4.2.0+</version>
          <description>Mixins...</description>
          <association>
            <type>Mixin</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>

        <!-- ====================================================================== -->