Index: content-reference.php
===================================================================
--- content-reference.php	(revision 937)
+++ content-reference.php	(working copy)
@@ -2,6 +2,8 @@
 
 <article id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
 
+	<?php echo get_deprecated(); ?>
+
 	<h1><a href="<?php the_permalink() ?>"><?php echo get_signature(); ?></a></h1>
 
 	<section class="description">
Index: inc/template-tags.php
===================================================================
--- inc/template-tags.php	(revision 937)
+++ inc/template-tags.php	(working copy)
@@ -698,6 +698,30 @@
 	}
 
 	/**
+	 * Retrieve deprecated flag
+	 *
+	 * @param int $post_id
+	 *
+	 * @return string
+	 */
+	function get_deprecated( $post_id = null ) {
+		if ( empty( $post_id ) ) {
+			$post_id = get_the_ID();
+		}
+		$type       = ucwords( array_pop( explode( '-', get_post_type( $post_id ) ) ) );
+		$tags       = get_post_meta( $post_id, '_wp-parser_tags', true );
+		$deprecated = wp_filter_object_list( $tags, array( 'name' => 'deprecated' ) );
+
+		if ( empty( $deprecated ) ) {
+			return '';
+		} else {
+			$deprecated      = array_shift( $deprecated );
+			$description = empty( $deprecated['content'] ) ? '' : esc_html( $deprecated['content'] );
+			return "<div class='deprecated'>" . wp_kses_post( sprintf( __( 'Warning: This %s has been deprecated. %s</div>', 'wporg' ), $type, $description ) );
+		}
+	}
+
+	/**
 	 * Retrieve URL to source file archive.
 	 *
 	 * @param string $name
Index: scss/main.scss
===================================================================
--- scss/main.scss	(revision 937)
+++ scss/main.scss	(working copy)
@@ -940,6 +940,12 @@
 			border-radius: 5px;
 			padding: 20px;
 		}
+		.deprecated {
+			background-color: #be2423;
+			border: 1px solid #a4322f;
+			padding: 20px;
+			color: #ffffff;
+		}
 	}
 
 	&.archive, &.search {
Index: stylesheets/main.css
===================================================================
--- stylesheets/main.css	(revision 937)
+++ stylesheets/main.css	(working copy)
@@ -1145,6 +1145,12 @@
   border-radius: 5px;
   padding: 20px;
 }
+.devhub-wrap .wp-parser-class .deprecated, .devhub-wrap .wp-parser-function .deprecated, .devhub-wrap .wp-parser-hook .deprecated, .devhub-wrap .wp-parser-method .deprecated {
+  background-color: #be2423;
+  border: 1px solid #a4322f;
+  padding: 20px;
+  color: #ffffff;
+}
 .devhub-wrap.archive .wp-parser-class h1 a, .devhub-wrap.archive .wp-parser-function h1 a, .devhub-wrap.archive .wp-parser-hook h1 a, .devhub-wrap.archive .wp-parser-method h1 a, .devhub-wrap.search .wp-parser-class h1 a, .devhub-wrap.search .wp-parser-function h1 a, .devhub-wrap.search .wp-parser-hook h1 a, .devhub-wrap.search .wp-parser-method h1 a {
   font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
   color: #21759b;