diff --git a/wp-includes/cron.php b/wp-includes/cron.php
index 39b61ae356..a764caab42 100644
--- a/wp-includes/cron.php
+++ b/wp-includes/cron.php
@@ -940,7 +940,7 @@ function spawn_cron( $gmt_time = 0 ) {
 	 *     An array of cron request URL arguments.
 	 *
 	 *     @type string $url  The cron request URL.
-	 *     @type int    $key  The 22 digit GMT microtime.
+	 *     @type string $key  The Unix timestamp (UTC) of the cron lock with microseconds.
 	 *     @type array  $args {
 	 *         An array of cron request arguments.
 	 *
@@ -949,7 +949,7 @@ function spawn_cron( $gmt_time = 0 ) {
 	 *         @type bool $sslverify Whether SSL should be verified for the request. Default false.
 	 *     }
 	 * }
-	 * @param string $doing_wp_cron The Unix timestamp (UTC) of the cron lock.
+	 * @param string $doing_wp_cron The Unix timestamp (UTC) of the cron lock with microseconds.
 	 */
 	$cron_request = apply_filters(
 		'cron_request',
diff --git a/wp-includes/version.php b/wp-includes/version.php
index a6d3b3e155..bdf3a85e56 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.9-alpha-60652';
+$wp_version = '6.9-alpha-60653';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.