diff --git a/wp-content/themes/twentyfourteen/inc/widgets.php b/wp-content/themes/twentyfourteen/inc/widgets.php
index d8d15c2ba4..397b2fc0d8 100644
--- a/wp-content/themes/twentyfourteen/inc/widgets.php
+++ b/wp-content/themes/twentyfourteen/inc/widgets.php
@@ -262,20 +262,22 @@ class Twenty_Fourteen_Ephemera_Widget extends WP_Widget {
 	 * Here is where any validation should happen.
 	 *
 	 * @since Twenty Fourteen 1.0
+	 * @since Twenty Fourteen 3.3 Renamed `$instance` to `$old_instance` to match
+	 *                            parent class for PHP 8 named parameter support.
 	 *
 	 * @param array $new_instance New widget instance.
-	 * @param array $instance     Original widget instance.
+	 * @param array $old_instance Original widget instance.
 	 * @return array Updated widget instance.
 	 */
-	function update( $new_instance, $instance ) {
-		$instance['title']  = strip_tags( $new_instance['title'] );
-		$instance['number'] = empty( $new_instance['number'] ) ? 2 : absint( $new_instance['number'] );
+	function update( $new_instance, $old_instance ) {
+		$old_instance['title']  = strip_tags( $new_instance['title'] );
+		$old_instance['number'] = empty( $new_instance['number'] ) ? 2 : absint( $new_instance['number'] );
 
 		if ( in_array( $new_instance['format'], $this->formats, true ) ) {
-			$instance['format'] = $new_instance['format'];
+			$old_instance['format'] = $new_instance['format'];
 		}
 
-		return $instance;
+		return $old_instance;
 	}
 
 	/**
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 89812b9a99..620192d557 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-51788';
+$wp_version = '5.9-alpha-51789';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
diff --git a/wp-includes/widgets/class-wp-widget-media.php b/wp-includes/widgets/class-wp-widget-media.php
index 25016fd268..b6eaff793e 100644
--- a/wp-includes/widgets/class-wp-widget-media.php
+++ b/wp-includes/widgets/class-wp-widget-media.php
@@ -259,16 +259,18 @@ abstract class WP_Widget_Media extends WP_Widget {
 	 * Sanitizes the widget form values as they are saved.
 	 *
 	 * @since 4.8.0
+	 * @since 5.9.0 Renamed `$instance` to `$old_instance` to match parent class
+	 *              for PHP 8 named parameter support.
 	 *
 	 * @see WP_Widget::update()
 	 * @see WP_REST_Request::has_valid_params()
 	 * @see WP_REST_Request::sanitize_params()
 	 *
 	 * @param array $new_instance Values just sent to be saved.
-	 * @param array $instance     Previously saved values from database.
+	 * @param array $old_instance Previously saved values from database.
 	 * @return array Updated safe values to be saved.
 	 */
-	public function update( $new_instance, $instance ) {
+	public function update( $new_instance, $old_instance ) {
 
 		$schema = $this->get_instance_schema();
 		foreach ( $schema as $field => $field_schema ) {
@@ -303,10 +305,10 @@ abstract class WP_Widget_Media extends WP_Widget {
 			if ( is_wp_error( $value ) ) {
 				continue;
 			}
-			$instance[ $field ] = $value;
+			$old_instance[ $field ] = $value;
 		}
 
-		return $instance;
+		return $old_instance;
 	}
 
 	/**