using this /libs/wcm/foundation/components/utils/ParagraphSystem.js for paraghraphsystem in AEM 6.4 is correct ?

I am new to aem 6.4 and I have upgraded my project form 6.2 to 6.4. In the below code "content-section-parsys.js"file  uses  /libs/wcm/foundation/components/utils/ParagraphSystem.js for ParagraphSystem. Will it work if we use this paragraphsystem.js AEM 6.4 or we need to use any other js for ParagraphSystem.

content-section-parsys.html :

<sly data-sly-use.parsysComponent="content-section-parsys.js" data-sly-list.row="${parsysComponent.rows}">

   <div class="row${row.wrapperCssClass}">

      <sly data-sly-list.column="${row.columns}">

         <div id="section-${currentNode.parent.identifier}-${column.index}" class="${column.wrapperCssClass}" style="outline: none;">

            <sly data-sly-test="${!column.columns && column.resourceType}"

                 data-sly-resource="${column.resourcePath @ resourceType=column.resourceType, cssClassName=column.cssClasses}"></sly>

         </div>

      </sly>

   </div>

</sly>