diff --git a/airflow/dag_processing/manager.py b/airflow/dag_processing/manager.py
index 57b7ff382ceae..23b98a921d216 100644
--- a/airflow/dag_processing/manager.py
+++ b/airflow/dag_processing/manager.py
@@ -1144,7 +1144,7 @@ def _kill_timed_out_processors(self):
                 )
                 Stats.decr("dag_processing.processes")
                 Stats.incr("dag_processing.processor_timeouts")
-                # TODO: Remove after Airflow 2.0
+                # Deprecated; may be removed in a future Airflow release.
                 Stats.incr("dag_file_processor_timeouts")
                 processor.kill()
 
diff --git a/docs/apache-airflow/logging-monitoring/metrics.rst b/docs/apache-airflow/logging-monitoring/metrics.rst
index e37c5aa785458..f97682bf8c97b 100644
--- a/docs/apache-airflow/logging-monitoring/metrics.rst
+++ b/docs/apache-airflow/logging-monitoring/metrics.rst
@@ -93,6 +93,7 @@ Name                                        Description
 ``scheduler_heartbeat``                     Scheduler heartbeats
 ``dag_processing.processes``                Number of currently running DAG parsing processes
 ``dag_processing.processor_timeouts``       Number of file processors that have been killed due to taking too long
+``dag_file_processor_timeouts``             (DEPRECATED) same behavior as ``dag_processing.processor_timeouts``
 ``dag_processing.manager_stalls``           Number of stalled ``DagFileProcessorManager``
 ``dag_file_refresh_error``                  Number of failures loading any DAG files
 ``scheduler.tasks.killed_externally``       Number of tasks killed externally