diff --git a/output/openapi/elasticsearch-openapi.json b/output/openapi/elasticsearch-openapi.json
index 64d7ffcaf9..4d4c1d6cea 100644
--- a/output/openapi/elasticsearch-openapi.json
+++ b/output/openapi/elasticsearch-openapi.json
@@ -20283,7 +20283,7 @@
             }
           }
         },
-        "x-state": "Generally available; Added in 9.1.0",
+        "x-state": "Generally available; Added in 8.19.0",
         "x-metaTags": [
           {
             "content": "Elasticsearch, Machine Learning",
@@ -20884,7 +20884,7 @@
             }
           }
         },
-        "x-state": "Generally available; Added in 9.1.0",
+        "x-state": "Generally available; Added in 8.19.0",
         "x-metaTags": [
           {
             "content": "Elasticsearch, Machine Learning",
diff --git a/output/schema/schema.json b/output/schema/schema.json
index b1a69e1a71..af5795f8e9 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -9625,7 +9625,7 @@
           "visibility": "public"
         },
         "stack": {
-          "since": "9.1.0",
+          "since": "8.19.0",
           "stability": "stable",
           "visibility": "public"
         }
@@ -9896,7 +9896,7 @@
           "visibility": "public"
         },
         "stack": {
-          "since": "9.1.0",
+          "since": "8.19.0",
           "stability": "stable",
           "visibility": "public"
         }
diff --git a/specification/inference/put_amazonsagemaker/PutAmazonSageMakerRequest.ts b/specification/inference/put_amazonsagemaker/PutAmazonSageMakerRequest.ts
index 1b020e5fc8..2e35ef4cec 100644
--- a/specification/inference/put_amazonsagemaker/PutAmazonSageMakerRequest.ts
+++ b/specification/inference/put_amazonsagemaker/PutAmazonSageMakerRequest.ts
@@ -33,7 +33,7 @@ import { TaskTypeAmazonSageMaker } from '@inference/_types/TaskType'
  *
  * Create an inference endpoint to perform an inference task with the `amazon_sagemaker` service.
  * @rest_spec_name inference.put_amazonsagemaker
- * @availability stack since=9.1.0 stability=stable visibility=public
+ * @availability stack since=8.19.0 stability=stable visibility=public
  * @availability serverless stability=stable visibility=public
  * @cluster_privileges manage_inference
  * @doc_id inference-api-put-amazonsagemaker
diff --git a/specification/inference/put_deepseek/PutDeepSeekRequest.ts b/specification/inference/put_deepseek/PutDeepSeekRequest.ts
index c188ffd857..868fce0dc2 100644
--- a/specification/inference/put_deepseek/PutDeepSeekRequest.ts
+++ b/specification/inference/put_deepseek/PutDeepSeekRequest.ts
@@ -32,7 +32,7 @@ import { TaskTypeDeepSeek } from '@inference/_types/TaskType'
  *
  * Create an inference endpoint to perform an inference task with the `deepseek` service.
  * @rest_spec_name inference.put_deepseek
- * @availability stack since=9.1.0 stability=stable visibility=public
+ * @availability stack since=8.19.0 stability=stable visibility=public
  * @availability serverless stability=stable visibility=public
  * @cluster_privileges manage_inference
  * @doc_id inference-api-put-deepseek