Stick post loop from example code does not work

Hi all, I have on my index.php code the following loop codee directly from the docs https://codex.www.ads-software.com/The_Loop. It worked before upgrading to the newwest version 2.1. It doesn not “showpost” of just 1 item that is in a cat “Featured”, but instead it shows muliple items. And some of those items are not even in that cat.
What I would like to do is show one item (featured) with excerpt as first item then list the rest below it in an different list type.

 <?php $my_query = new WP_Query('category_name=Featured&showposts=1');
           while ($my_query->have_posts()) : $my_query->the_post();
           $do_not_duplicate = $post->ID;?>

    <!--
		<?php trackback_rdf(); ?>
		-->
    	<div class="post" id="post-<?php the_ID(); ?>">
      		<h2><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a></h2>
      		<div class="postcontent">
	  			<p><?php the_excerpt(); ?>  </p>
      		</div>
		</div>
 	<?php endwhile; ?>

		<h1>Recent Articles</h1>

		   <?php if (have_posts()) : while (have_posts()) : the_post(); if( $post->ID == $do_not_duplicate )
	      continue;?>

<h3><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a></h3>
				 <div class="postInfo">
					<p><?php the_excerpt(); ?> </p>
				 </div>
 <?php endwhile; ?>

<?php else : ?>