diff --git a/wp-includes/taxonomy.php b/wp-includes/taxonomy.php
index a611307b6d..b0d053f648 100644
--- a/wp-includes/taxonomy.php
+++ b/wp-includes/taxonomy.php
@@ -222,6 +222,27 @@ function create_initial_taxonomies() {
 			'show_in_rest'      => false,
 		)
 	);
+
+	register_taxonomy(
+		'wp_pattern_category',
+		array( 'wp_block' ),
+		array(
+			'public'             => true,
+			'publicly_queryable' => false,
+			'hierarchical'       => false,
+			'labels'             => array(
+				'name'           => _x( 'Pattern Categories', 'taxonomy general name' ),
+				'singular_name'  => _x( 'Pattern Category', 'taxonomy singular name' ),
+			),
+			'query_var'          => false,
+			'rewrite'            => false,
+			'show_ui'            => true,
+			'_builtin'           => true,
+			'show_in_nav_menus'  => false,
+			'show_in_rest'       => true,
+			'show_admin_column'  => true,
+		)
+	);
 }
 
 /**
diff --git a/wp-includes/version.php b/wp-includes/version.php
index c4e4c5fbdb..022a9d5a77 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.4-alpha-56641';
+$wp_version = '6.4-alpha-56642';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.