diff -r 34716fd837a4 -r be944660c56a wp/wp-includes/blocks/latest-comments.php
--- a/wp/wp-includes/blocks/latest-comments.php	Tue Dec 15 15:52:01 2020 +0100
+++ b/wp/wp-includes/blocks/latest-comments.php	Wed Sep 21 18:19:35 2022 +0200
@@ -41,8 +41,8 @@
  * @return string Returns the post content with latest comments added.
  */
 function render_block_core_latest_comments( $attributes = array() ) {
-	// This filter is documented in wp-includes/widgets/class-wp-widget-recent-comments.php.
 	$comments = get_comments(
+		// This filter is documented in wp-includes/widgets/class-wp-widget-recent-comments.php.
 		apply_filters(
 			'widget_comments_args',
 			array(
@@ -116,34 +116,28 @@
 		}
 	}
 
-	$class = 'wp-block-latest-comments';
-	if ( ! empty( $attributes['className'] ) ) {
-		$class .= ' ' . $attributes['className'];
-	}
-	if ( isset( $attributes['align'] ) ) {
-		$class .= " align{$attributes['align']}";
-	}
+	$classnames = array();
 	if ( $attributes['displayAvatar'] ) {
-		$class .= ' has-avatars';
+		$classnames[] = 'has-avatars';
 	}
 	if ( $attributes['displayDate'] ) {
-		$class .= ' has-dates';
+		$classnames[] = 'has-dates';
 	}
 	if ( $attributes['displayExcerpt'] ) {
-		$class .= ' has-excerpts';
+		$classnames[] = 'has-excerpts';
 	}
 	if ( empty( $comments ) ) {
-		$class .= ' no-comments';
+		$classnames[] = 'no-comments';
 	}
-	$classnames = esc_attr( $class );
+	$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classnames ) ) );
 
 	return ! empty( $comments ) ? sprintf(
-		'<ol class="%1$s">%2$s</ol>',
-		$classnames,
+		'<ol %1$s>%2$s</ol>',
+		$wrapper_attributes,
 		$list_items_markup
 	) : sprintf(
-		'<div class="%1$s">%2$s</div>',
-		$classnames,
+		'<div %1$s>%2$s</div>',
+		$wrapper_attributes,
 		__( 'No comments to show.' )
 	);
 }