diff -r 34716fd837a4 -r be944660c56a wp/wp-includes/class-wp-recovery-mode-email-service.php
--- a/wp/wp-includes/class-wp-recovery-mode-email-service.php	Tue Dec 15 15:52:01 2020 +0100
+++ b/wp/wp-includes/class-wp-recovery-mode-email-service.php	Wed Sep 21 18:19:35 2022 +0200
@@ -75,7 +75,7 @@
 		}
 
 		$err_message = sprintf(
-			/* translators: 1. Last sent as a human time diff, 2. Wait time as a human time diff. */
+			/* translators: 1: Last sent as a human time diff, 2: Wait time as a human time diff. */
 			__( 'A recovery link was already sent %1$s ago. Please wait another %2$s before requesting a new email.' ),
 			human_time_diff( $last_sent ),
 			human_time_diff( $last_sent + $rate_limit )
@@ -194,19 +194,29 @@
 		);
 
 		$email = array(
-			'to'      => $this->get_recovery_mode_email_address(),
+			'to'          => $this->get_recovery_mode_email_address(),
 			/* translators: %s: Site title. */
-			'subject' => __( '[%s] Your Site is Experiencing a Technical Issue' ),
-			'message' => $message,
-			'headers' => '',
+			'subject'     => __( '[%s] Your Site is Experiencing a Technical Issue' ),
+			'message'     => $message,
+			'headers'     => '',
+			'attachments' => '',
 		);
 
 		/**
-		 * Filter the contents of the Recovery Mode email.
+		 * Filters the contents of the Recovery Mode email.
 		 *
 		 * @since 5.2.0
+		 * @since 5.6.0 The `$email` argument includes the `attachments` key.
 		 *
-		 * @param array  $email Used to build wp_mail().
+		 * @param array  $email {
+		 *     Used to build a call to wp_mail().
+		 *
+		 *     @type string|array $to          Array or comma-separated list of email addresses to send message.
+		 *     @type string       $subject     Email subject
+		 *     @type string       $message     Message contents
+		 *     @type string|array $headers     Optional. Additional headers.
+		 *     @type string|array $attachments Optional. Files to attach.
+		 * }
 		 * @param string $url   URL to enter recovery mode.
 		 */
 		$email = apply_filters( 'recovery_mode_email', $email, $url );
@@ -215,7 +225,8 @@
 			$email['to'],
 			wp_specialchars_decode( sprintf( $email['subject'], $blogname ) ),
 			$email['message'],
-			$email['headers']
+			$email['headers'],
+			$email['attachments']
 		);
 
 		if ( $switched_locale ) {
@@ -278,7 +289,7 @@
 	 * @since 5.3.0
 	 *
 	 * @param array $extension The extension that caused the error.
-	 * @return bool|array A plugin array {@see get_plugins()} or `false` if no plugin was found.
+	 * @return array|false A plugin array {@see get_plugins()} or `false` if no plugin was found.
 	 */
 	private function get_plugin( $extension ) {
 		if ( ! function_exists( 'get_plugins' ) ) {
@@ -320,8 +331,8 @@
 		}
 
 		$debug = array(
-			/* translators: %s: Current WordPress version number. */
 			'wp'    => sprintf(
+				/* translators: %s: Current WordPress version number. */
 				__( 'WordPress version %s' ),
 				$wp_version
 			),