diff --git a/output/schema/schema.json b/output/schema/schema.json
index 43b223d347..31e1660e82 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -11272,6 +11272,10 @@
           "stability": "stable"
         }
       },
+      "deprecation": {
+        "description": "Forcing any buffered data to be processed is deprecated, in a future major version a datafeed will be required.",
+        "version": "9.1.0"
+      },
       "description": "Force buffered data to be processed.\nThe flush jobs API is only applicable when sending data for analysis using\nthe post data API. Depending on the content of the buffer, then it might\nadditionally calculate new results. Both flush and close operations are\nsimilar, however the flush is more efficient if you are expecting to send\nmore data for analysis. When flushing, the job remains open and is available\nto continue analyzing data. A close operation additionally prunes and\npersists the model state to disk and the job must be opened again before\nanalyzing further data.",
       "docId": "ml-flush-job",
       "docTag": "ml anomaly",
@@ -170827,6 +170831,10 @@
           }
         ]
       },
+      "deprecation": {
+        "description": "Forcing any buffered data to be processed is deprecated, in a future major version a datafeed will be required.",
+        "version": "9.1.0"
+      },
       "description": "Force buffered data to be processed.\nThe flush jobs API is only applicable when sending data for analysis using\nthe post data API. Depending on the content of the buffer, then it might\nadditionally calculate new results. Both flush and close operations are\nsimilar, however the flush is more efficient if you are expecting to send\nmore data for analysis. When flushing, the job remains open and is available\nto continue analyzing data. A close operation additionally prunes and\npersists the model state to disk and the job must be opened again before\nanalyzing further data.",
       "inherits": {
         "type": {
@@ -170914,7 +170922,7 @@
           }
         }
       ],
-      "specLocation": "ml/flush_job/MlFlushJobRequest.ts#L24-L107"
+      "specLocation": "ml/flush_job/MlFlushJobRequest.ts#L24-L108"
     },
     {
       "kind": "response",
diff --git a/specification/ml/flush_job/MlFlushJobRequest.ts b/specification/ml/flush_job/MlFlushJobRequest.ts
index 225b85321a..dca143fc52 100644
--- a/specification/ml/flush_job/MlFlushJobRequest.ts
+++ b/specification/ml/flush_job/MlFlushJobRequest.ts
@@ -35,6 +35,7 @@ import { DateTime } from '@_types/Time'
  * @availability stack since=5.4.0 stability=stable
  * @availability serverless stability=stable visibility=public
  * @cluster_privileges manage_ml
+ * @deprecated 9.1.0 Forcing any buffered data to be processed is deprecated, in a future major version a datafeed will be required.
  * @doc_tag ml anomaly
  * @doc_id ml-flush-job
  */