diff --git a/output/openapi/elasticsearch-openapi.json b/output/openapi/elasticsearch-openapi.json
index 2979491a9e..b1cddb90d6 100644
--- a/output/openapi/elasticsearch-openapi.json
+++ b/output/openapi/elasticsearch-openapi.json
@@ -22013,7 +22013,7 @@
           "info"
         ],
         "summary": "Get cluster info",
-        "description": "Get basic build, version, and cluster information.\n\n## Required authorization\n\n* Cluster privileges: `monitor`\n",
+        "description": "Get basic build, version, and cluster information.\n::: In Serverless, this API is retained for backward compatibility only. Some response fields, such as the version number, should be ignored.\n\n## Required authorization\n\n* Cluster privileges: `monitor`\n",
         "operationId": "info",
         "responses": {
           "200": {
@@ -22049,8 +22049,12 @@
                 },
                 "examples": {
                   "RootNodeInfoResponseExample1": {
-                    "description": "A successful response from `GET /`s.",
-                    "value": "{\n  \"name\": \"instance-0000000000\",\n  \"cluster_name\": \"my_test_cluster\",\n  \"cluster_uuid\": \"5QaxoN0pRZuOmWSxstBBwQ\",\n  \"version\": {\n    \"build_date\": \"2024-02-01T13:07:13.727175297Z\",\n    \"minimum_wire_compatibility_version\": \"7.17.0\",\n    \"build_hash\": \"6185ba65d27469afabc9bc951cded6c17c21e3f3\",\n    \"number\": \"8.12.1\",\n    \"lucene_version\": \"9.9.2\",\n    \"minimum_index_compatibility_version\": \"7.0.0\",\n    \"build_flavor\": \"default\",\n    \"build_snapshot\": false,\n    \"build_type\": \"docker\"\n  },\n  \"tagline\": \"You Know, for Search\"\n}"
+                    "description": "A successful response from `GET /`.",
+                    "value": "{\n  \"name\": \"instance-0000000000\",\n  \"cluster_name\": \"my_test_cluster\",\n  \"cluster_uuid\": \"zk-HjQtYQGyL3NFSSu7InA\",\n  \"version\": {\n    \"number\": \"9.1.0\",\n    \"build_flavor\": \"default\",\n    \"build_type\": \"docker\",\n    \"build_hash\": 0,\n    \"build_date\": \"2025-07-09T22:10:13.578Z\",\n    \"build_snapshot\": false,\n    \"lucene_version\": \"10.2.2\",\n    \"minimum_wire_compatibility_version\": \"8.19.0\",\n    \"minimum_index_compatibility_version\": \"8.0.0\"\n  },\n  \"tagline\": \"You Know, for Search\"\n}"
+                  },
+                  "RootNodeInfoResponseExample2": {
+                    "description": "A successful response from `GET /` on Serverless. This API is retained for backward compatibility only. Some fields, such as the version number, return static values and should be ignored.",
+                    "value": "{\n  \"name\": \"serverless\",\n  \"cluster_name\": \"my_test_serverless_cluster\",\n  \"cluster_uuid\": \"8xx0pi24Squnf4PFDOAtwg\",\n  \"version\": {\n    \"number\": \"8.11.0\",\n    \"build_flavor\": \"serverless\",\n    \"build_type\": \"docker\",\n    \"build_hash\": 0,\n    \"build_date\": \"2023-10-31T00:00:00.000Z\",\n    \"build_snapshot\": false,\n    \"lucene_version\": \"9.7.0\",\n    \"minimum_wire_compatibility_version\": \"8.11.0\",\n    \"minimum_index_compatibility_version\": \"8.11.0\"\n  },\n  \"tagline\": \"You Know, for Search\"\n}"
                   }
                 }
               }
@@ -88383,7 +88387,7 @@
             "$ref": "#/components/schemas/_types.VersionString"
           },
           "number": {
-            "description": "The Elasticsearch version number.",
+            "description": "The Elasticsearch version number.\n\n::: IMPORTANT: For Serverless deployments, this static value is always `8.11.0` and is used solely for backward compatibility with legacy clients.\n Serverless environments are versionless and automatically upgraded, so this value can be safely ignored.",
             "type": "string"
           }
         },
diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index 5b0fc2640a..609b8458d4 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -12759,7 +12759,7 @@
           "info"
         ],
         "summary": "Get cluster info",
-        "description": "Get basic build, version, and cluster information.\n\n## Required authorization\n\n* Cluster privileges: `monitor`\n",
+        "description": "Get basic build, version, and cluster information.\n::: In Serverless, this API is retained for backward compatibility only. Some response fields, such as the version number, should be ignored.\n\n## Required authorization\n\n* Cluster privileges: `monitor`\n",
         "operationId": "info",
         "responses": {
           "200": {
@@ -12795,8 +12795,12 @@
                 },
                 "examples": {
                   "RootNodeInfoResponseExample1": {
-                    "description": "A successful response from `GET /`s.",
-                    "value": "{\n  \"name\": \"instance-0000000000\",\n  \"cluster_name\": \"my_test_cluster\",\n  \"cluster_uuid\": \"5QaxoN0pRZuOmWSxstBBwQ\",\n  \"version\": {\n    \"build_date\": \"2024-02-01T13:07:13.727175297Z\",\n    \"minimum_wire_compatibility_version\": \"7.17.0\",\n    \"build_hash\": \"6185ba65d27469afabc9bc951cded6c17c21e3f3\",\n    \"number\": \"8.12.1\",\n    \"lucene_version\": \"9.9.2\",\n    \"minimum_index_compatibility_version\": \"7.0.0\",\n    \"build_flavor\": \"default\",\n    \"build_snapshot\": false,\n    \"build_type\": \"docker\"\n  },\n  \"tagline\": \"You Know, for Search\"\n}"
+                    "description": "A successful response from `GET /`.",
+                    "value": "{\n  \"name\": \"instance-0000000000\",\n  \"cluster_name\": \"my_test_cluster\",\n  \"cluster_uuid\": \"zk-HjQtYQGyL3NFSSu7InA\",\n  \"version\": {\n    \"number\": \"9.1.0\",\n    \"build_flavor\": \"default\",\n    \"build_type\": \"docker\",\n    \"build_hash\": 0,\n    \"build_date\": \"2025-07-09T22:10:13.578Z\",\n    \"build_snapshot\": false,\n    \"lucene_version\": \"10.2.2\",\n    \"minimum_wire_compatibility_version\": \"8.19.0\",\n    \"minimum_index_compatibility_version\": \"8.0.0\"\n  },\n  \"tagline\": \"You Know, for Search\"\n}"
+                  },
+                  "RootNodeInfoResponseExample2": {
+                    "description": "A successful response from `GET /` on Serverless. This API is retained for backward compatibility only. Some fields, such as the version number, return static values and should be ignored.",
+                    "value": "{\n  \"name\": \"serverless\",\n  \"cluster_name\": \"my_test_serverless_cluster\",\n  \"cluster_uuid\": \"8xx0pi24Squnf4PFDOAtwg\",\n  \"version\": {\n    \"number\": \"8.11.0\",\n    \"build_flavor\": \"serverless\",\n    \"build_type\": \"docker\",\n    \"build_hash\": 0,\n    \"build_date\": \"2023-10-31T00:00:00.000Z\",\n    \"build_snapshot\": false,\n    \"lucene_version\": \"9.7.0\",\n    \"minimum_wire_compatibility_version\": \"8.11.0\",\n    \"minimum_index_compatibility_version\": \"8.11.0\"\n  },\n  \"tagline\": \"You Know, for Search\"\n}"
                   }
                 }
               }
@@ -56000,7 +56004,7 @@
             "$ref": "#/components/schemas/_types.VersionString"
           },
           "number": {
-            "description": "The Elasticsearch version number.",
+            "description": "The Elasticsearch version number.\n\n::: IMPORTANT: For Serverless deployments, this static value is always `8.11.0` and is used solely for backward compatibility with legacy clients.\n Serverless environments are versionless and automatically upgraded, so this value can be safely ignored.",
             "type": "string"
           }
         },
diff --git a/output/schema/schema.json b/output/schema/schema.json
index 45f989b1f9..2b2a3ac219 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -10543,7 +10543,7 @@
           "stability": "stable"
         }
       },
-      "description": "Get cluster info.\nGet basic build, version, and cluster information.",
+      "description": "Get cluster info.\nGet basic build, version, and cluster information.\n::: In Serverless, this API is retained for backward compatibility only. Some response fields, such as the version number, should be ignored.",
       "docId": "api-root",
       "docTag": "info",
       "docUrl": "https://www.elastic.co/docs/api/doc/elasticsearch/v9/group/endpoint-info",
@@ -31544,7 +31544,7 @@
       "body": {
         "kind": "no_body"
       },
-      "description": "Get cluster info.\nGet basic build, version, and cluster information.",
+      "description": "Get cluster info.\nGet basic build, version, and cluster information.\n::: In Serverless, this API is retained for backward compatibility only. Some response fields, such as the version number, should be ignored.",
       "examples": {
         "RootNodeInfoRequestExample1": {
           "alternatives": [
@@ -31588,7 +31588,7 @@
       },
       "path": [],
       "query": [],
-      "specLocation": "_global/info/RootNodeInfoRequest.ts#L22-L39"
+      "specLocation": "_global/info/RootNodeInfoRequest.ts#L22-L40"
     },
     {
       "kind": "response",
@@ -31657,8 +31657,14 @@
       },
       "examples": {
         "RootNodeInfoResponseExample1": {
-          "description": "A successful response from `GET /`s.",
-          "value": "{\n  \"name\": \"instance-0000000000\",\n  \"cluster_name\": \"my_test_cluster\",\n  \"cluster_uuid\": \"5QaxoN0pRZuOmWSxstBBwQ\",\n  \"version\": {\n    \"build_date\": \"2024-02-01T13:07:13.727175297Z\",\n    \"minimum_wire_compatibility_version\": \"7.17.0\",\n    \"build_hash\": \"6185ba65d27469afabc9bc951cded6c17c21e3f3\",\n    \"number\": \"8.12.1\",\n    \"lucene_version\": \"9.9.2\",\n    \"minimum_index_compatibility_version\": \"7.0.0\",\n    \"build_flavor\": \"default\",\n    \"build_snapshot\": false,\n    \"build_type\": \"docker\"\n  },\n  \"tagline\": \"You Know, for Search\"\n}"
+          "description": "A successful response from `GET /`.",
+          "summary": "Stack response",
+          "value": "{\n  \"name\": \"instance-0000000000\",\n  \"cluster_name\": \"my_test_cluster\",\n  \"cluster_uuid\": \"zk-HjQtYQGyL3NFSSu7InA\",\n  \"version\": {\n    \"number\": \"9.1.0\",\n    \"build_flavor\": \"default\",\n    \"build_type\": \"docker\",\n    \"build_hash\": 0,\n    \"build_date\": \"2025-07-09T22:10:13.578Z\",\n    \"build_snapshot\": false,\n    \"lucene_version\": \"10.2.2\",\n    \"minimum_wire_compatibility_version\": \"8.19.0\",\n    \"minimum_index_compatibility_version\": \"8.0.0\"\n  },\n  \"tagline\": \"You Know, for Search\"\n}"
+        },
+        "RootNodeInfoResponseExample2": {
+          "description": "A successful response from `GET /` on Serverless. This API is retained for backward compatibility only. Some fields, such as the version number, return static values and should be ignored.",
+          "summary": "Serverless response",
+          "value": "{\n  \"name\": \"serverless\",\n  \"cluster_name\": \"my_test_serverless_cluster\",\n  \"cluster_uuid\": \"8xx0pi24Squnf4PFDOAtwg\",\n  \"version\": {\n    \"number\": \"8.11.0\",\n    \"build_flavor\": \"serverless\",\n    \"build_type\": \"docker\",\n    \"build_hash\": 0,\n    \"build_date\": \"2023-10-31T00:00:00.000Z\",\n    \"build_snapshot\": false,\n    \"lucene_version\": \"9.7.0\",\n    \"minimum_wire_compatibility_version\": \"8.11.0\",\n    \"minimum_index_compatibility_version\": \"8.11.0\"\n  },\n  \"tagline\": \"You Know, for Search\"\n}"
         }
       },
       "name": {
@@ -50615,7 +50621,7 @@
           }
         },
         {
-          "description": "The Elasticsearch version number.",
+          "description": "The Elasticsearch version number.\n\n::: IMPORTANT: For Serverless deployments, this static value is always `8.11.0` and is used solely for backward compatibility with legacy clients.\n Serverless environments are versionless and automatically upgraded, so this value can be safely ignored.",
           "name": "number",
           "required": true,
           "type": {
@@ -50627,7 +50633,7 @@
           }
         }
       ],
-      "specLocation": "_types/Base.ts#L76-L115"
+      "specLocation": "_types/Base.ts#L76-L118"
     },
     {
       "kind": "interface",
@@ -50682,7 +50688,7 @@
           }
         }
       ],
-      "specLocation": "_types/Base.ts#L117-L125"
+      "specLocation": "_types/Base.ts#L120-L128"
     },
     {
       "kind": "interface",
@@ -50871,7 +50877,7 @@
           }
         }
       ],
-      "specLocation": "_types/Base.ts#L127-L136"
+      "specLocation": "_types/Base.ts#L130-L139"
     },
     {
       "kind": "enum",
@@ -52631,7 +52637,7 @@
           }
         }
       ],
-      "specLocation": "_types/Base.ts#L138-L140"
+      "specLocation": "_types/Base.ts#L141-L143"
     },
     {
       "kind": "interface",
@@ -56710,7 +56716,7 @@
           }
         }
       ],
-      "specLocation": "_types/Base.ts#L142-L145"
+      "specLocation": "_types/Base.ts#L145-L148"
     },
     {
       "kind": "interface",
diff --git a/specification/_global/info/RootNodeInfoRequest.ts b/specification/_global/info/RootNodeInfoRequest.ts
index 23ba4478a9..5efb702c84 100644
--- a/specification/_global/info/RootNodeInfoRequest.ts
+++ b/specification/_global/info/RootNodeInfoRequest.ts
@@ -22,6 +22,7 @@ import { RequestBase } from '@_types/Base'
 /**
  * Get cluster info.
  * Get basic build, version, and cluster information.
+ * ::: In Serverless, this API is retained for backward compatibility only. Some response fields, such as the version number, should be ignored.
  * @rest_spec_name info
  * @availability stack stability=stable
  * @availability serverless stability=stable visibility=public
diff --git a/specification/_global/info/examples/response/RootNodeInfoResponseExample1.yaml b/specification/_global/info/examples/response/RootNodeInfoResponseExample1.yaml
index f3fa2ba844..025314f23b 100644
--- a/specification/_global/info/examples/response/RootNodeInfoResponseExample1.yaml
+++ b/specification/_global/info/examples/response/RootNodeInfoResponseExample1.yaml
@@ -1,19 +1,19 @@
-# summary: ''
-description: A successful response from `GET /`s.
+summary: Stack response
+description: A successful response from `GET /`.
 # type: response
 # response_code: 200
 value:
   name: instance-0000000000
   cluster_name: my_test_cluster
-  cluster_uuid: 5QaxoN0pRZuOmWSxstBBwQ
+  cluster_uuid: zk-HjQtYQGyL3NFSSu7InA
   version:
-    build_date: '2024-02-01T13:07:13.727175297Z'
-    minimum_wire_compatibility_version: 7.17.0
-    build_hash: 6185ba65d27469afabc9bc951cded6c17c21e3f3
-    number: 8.12.1
-    lucene_version: 9.9.2
-    minimum_index_compatibility_version: 7.0.0
+    number: 9.1.0
     build_flavor: default
-    build_snapshot: false
     build_type: docker
+    build_hash: 00000000
+    build_date: 2025-07-09T22:10:13.578182715Z
+    build_snapshot: false
+    lucene_version: 10.2.2
+    minimum_wire_compatibility_version: 8.19.0
+    minimum_index_compatibility_version: 8.0.0
   tagline: 'You Know, for Search'
diff --git a/specification/_global/info/examples/response/RootNodeInfoResponseExample2.yaml b/specification/_global/info/examples/response/RootNodeInfoResponseExample2.yaml
new file mode 100644
index 0000000000..cd5c4f2fee
--- /dev/null
+++ b/specification/_global/info/examples/response/RootNodeInfoResponseExample2.yaml
@@ -0,0 +1,19 @@
+summary: Serverless response
+description: A successful response from `GET /` on Serverless. This API is retained for backward compatibility only. Some fields, such as the version number, return static values and should be ignored.
+# type: response
+# response_code: 200
+value:
+  name: serverless
+  cluster_name: my_test_serverless_cluster
+  cluster_uuid: 8xx0pi24Squnf4PFDOAtwg
+  version:
+    number: 8.11.0
+    build_flavor: serverless
+    build_type: docker
+    build_hash: 00000000
+    build_date: 2023-10-31
+    build_snapshot: false
+    lucene_version: 9.7.0
+    minimum_wire_compatibility_version: 8.11.0
+    minimum_index_compatibility_version: 8.11.0
+  tagline: 'You Know, for Search'
diff --git a/specification/_types/Base.ts b/specification/_types/Base.ts
index 8bb72f17e4..fd67514614 100644
--- a/specification/_types/Base.ts
+++ b/specification/_types/Base.ts
@@ -110,6 +110,9 @@ export class ElasticsearchVersionInfo {
   minimum_wire_compatibility_version: VersionString
   /**
    * The Elasticsearch version number.
+   *
+   * ::: IMPORTANT: For Serverless deployments, this static value is always `8.11.0` and is used solely for backward compatibility with legacy clients.
+   *  Serverless environments are versionless and automatically upgraded, so this value can be safely ignored.
    */
   number: string
 }