diff --git a/application/Espo/Core/Job/QueueName.php b/application/Espo/Core/Job/QueueName.php
index c90a1b3646..bd7828e3af 100644
--- a/application/Espo/Core/Job/QueueName.php
+++ b/application/Espo/Core/Job/QueueName.php
@@ -51,6 +51,8 @@ class QueueName
      * A portion is always picked for a queue iteration, even if there are no-queue
      * jobs ordered before. E.g. if the portion size is 100, and there are 200 empty-queue
      * jobs and 5 m0 jobs, 95 and 5 will be picked respectfully.
+     *
+     * @since 9.2.0
      */
     const M0 = 'm0';
 }