diff -r 7b1b88e27a20 -r 48c4eec2b7e6 wp/wp-includes/blocks/archives.php
--- a/wp/wp-includes/blocks/archives.php	Thu Sep 29 08:06:27 2022 +0200
+++ b/wp/wp-includes/blocks/archives.php	Fri Sep 05 18:40:08 2025 +0200
@@ -8,6 +8,8 @@
 /**
  * Renders the `core/archives` block on server.
  *
+ * @since 5.0.0
+ *
  * @see WP_Widget_Archives
  *
  * @param array $attributes The block attributes.
@@ -17,11 +19,12 @@
 function render_block_core_archives( $attributes ) {
 	$show_post_count = ! empty( $attributes['showPostCounts'] );
 	$type            = isset( $attributes['type'] ) ? $attributes['type'] : 'monthly';
-	$class           = '';
+
+	$class = 'wp-block-archives-list';
 
 	if ( ! empty( $attributes['displayAsDropdown'] ) ) {
 
-		$class .= ' wp-block-archives-dropdown';
+		$class = 'wp-block-archives-dropdown';
 
 		$dropdown_id = wp_unique_id( 'wp-block-archives-' );
 		$title       = __( 'Archives' );
@@ -40,9 +43,7 @@
 
 		$archives = wp_get_archives( $dropdown_args );
 
-		$classnames = esc_attr( $class );
-
-		$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classnames ) );
+		$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $class ) );
 
 		switch ( $dropdown_args['type'] ) {
 			case 'yearly':
@@ -62,9 +63,11 @@
 				break;
 		}
 
-		$block_content = '<label for="' . esc_attr( $dropdown_id ) . '">' . esc_html( $title ) . '</label>
-	<select id="' . esc_attr( $dropdown_id ) . '" name="archive-dropdown" onchange="document.location.href=this.options[this.selectedIndex].value;">
-	<option value="">' . esc_html( $label ) . '</option>' . $archives . '</select>';
+		$show_label = empty( $attributes['showLabel'] ) ? ' screen-reader-text' : '';
+
+		$block_content = '<label for="' . $dropdown_id . '" class="wp-block-archives__label' . $show_label . '">' . esc_html( $title ) . '</label>
+		<select id="' . $dropdown_id . '" name="archive-dropdown" onchange="document.location.href=this.options[this.selectedIndex].value;">
+		<option value="">' . esc_html( $label ) . '</option>' . $archives . '</select>';
 
 		return sprintf(
 			'<div %1$s>%2$s</div>',
@@ -73,8 +76,6 @@
 		);
 	}
 
-	$class .= ' wp-block-archives-list';
-
 	/** This filter is documented in wp-includes/widgets/class-wp-widget-archives.php */
 	$archives_args = apply_filters(
 		'widget_archives_args',
@@ -107,6 +108,8 @@
 
 /**
  * Register archives block.
+ *
+ * @since 5.0.0
  */
 function register_block_core_archives() {
 	register_block_type_from_metadata(