diff --git a/output/openapi/elasticsearch-openapi.json b/output/openapi/elasticsearch-openapi.json
index 725c365a32..f0c0e95ea9 100644
--- a/output/openapi/elasticsearch-openapi.json
+++ b/output/openapi/elasticsearch-openapi.json
@@ -82506,6 +82506,9 @@
             "description": "If `true`, the data stream allows custom routing on write request.",
             "type": "boolean"
           },
+          "failure_store": {
+            "$ref": "#/components/schemas/indices._types:FailureStore"
+          },
           "generation": {
             "description": "Current generation for the data stream. This number acts as a cumulative count of the stream’s rollovers, starting at 1.",
             "type": "number"
@@ -82541,6 +82544,10 @@
             "description": "If `true`, the data stream is created and managed by cross-cluster replication and the local cluster can not write into this data stream or change its mappings.",
             "type": "boolean"
           },
+          "rollover_on_write": {
+            "description": "If `true`, the next write to this data stream will trigger a rollover first and the document will be indexed in the new backing index. If the rollover fails the indexing request will fail too.",
+            "type": "boolean"
+          },
           "status": {
             "$ref": "#/components/schemas/_types:HealthStatus"
           },
@@ -82563,17 +82570,32 @@
           "prefer_ilm",
           "indices",
           "name",
+          "rollover_on_write",
           "status",
           "template",
           "timestamp_field"
         ]
       },
-      "indices._types:ManagedBy": {
-        "type": "string",
-        "enum": [
-          "Index Lifecycle Management",
-          "Data stream lifecycle",
-          "Unmanaged"
+      "indices._types:FailureStore": {
+        "type": "object",
+        "properties": {
+          "enabled": {
+            "type": "boolean"
+          },
+          "indices": {
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/indices._types:DataStreamIndex"
+            }
+          },
+          "rollover_on_write": {
+            "type": "boolean"
+          }
+        },
+        "required": [
+          "enabled",
+          "indices",
+          "rollover_on_write"
         ]
       },
       "indices._types:DataStreamIndex": {
@@ -82598,9 +82620,15 @@
         },
         "required": [
           "index_name",
-          "index_uuid",
-          "managed_by",
-          "prefer_ilm"
+          "index_uuid"
+        ]
+      },
+      "indices._types:ManagedBy": {
+        "type": "string",
+        "enum": [
+          "Index Lifecycle Management",
+          "Data stream lifecycle",
+          "Unmanaged"
         ]
       },
       "indices._types:DataStreamTimestampField": {
diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index 2f26e2d4ac..f60fc04203 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -53221,6 +53221,9 @@
             "description": "If `true`, the data stream allows custom routing on write request.",
             "type": "boolean"
           },
+          "failure_store": {
+            "$ref": "#/components/schemas/indices._types:FailureStore"
+          },
           "generation": {
             "description": "Current generation for the data stream. This number acts as a cumulative count of the stream’s rollovers, starting at 1.",
             "type": "number"
@@ -53256,6 +53259,10 @@
             "description": "If `true`, the data stream is created and managed by cross-cluster replication and the local cluster can not write into this data stream or change its mappings.",
             "type": "boolean"
           },
+          "rollover_on_write": {
+            "description": "If `true`, the next write to this data stream will trigger a rollover first and the document will be indexed in the new backing index. If the rollover fails the indexing request will fail too.",
+            "type": "boolean"
+          },
           "status": {
             "$ref": "#/components/schemas/_types:HealthStatus"
           },
@@ -53278,17 +53285,32 @@
           "prefer_ilm",
           "indices",
           "name",
+          "rollover_on_write",
           "status",
           "template",
           "timestamp_field"
         ]
       },
-      "indices._types:ManagedBy": {
-        "type": "string",
-        "enum": [
-          "Index Lifecycle Management",
-          "Data stream lifecycle",
-          "Unmanaged"
+      "indices._types:FailureStore": {
+        "type": "object",
+        "properties": {
+          "enabled": {
+            "type": "boolean"
+          },
+          "indices": {
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/indices._types:DataStreamIndex"
+            }
+          },
+          "rollover_on_write": {
+            "type": "boolean"
+          }
+        },
+        "required": [
+          "enabled",
+          "indices",
+          "rollover_on_write"
         ]
       },
       "indices._types:DataStreamIndex": {
@@ -53313,9 +53335,15 @@
         },
         "required": [
           "index_name",
-          "index_uuid",
-          "managed_by",
-          "prefer_ilm"
+          "index_uuid"
+        ]
+      },
+      "indices._types:ManagedBy": {
+        "type": "string",
+        "enum": [
+          "Index Lifecycle Management",
+          "Data stream lifecycle",
+          "Unmanaged"
         ]
       },
       "indices._types:DataStreamTimestampField": {
diff --git a/output/schema/schema-serverless.json b/output/schema/schema-serverless.json
index d225f34962..8b54888223 100644
--- a/output/schema/schema-serverless.json
+++ b/output/schema/schema-serverless.json
@@ -114807,6 +114807,18 @@
             }
           }
         },
+        {
+          "description": "Information about failure store backing indices",
+          "name": "failure_store",
+          "required": false,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "FailureStore",
+              "namespace": "indices._types"
+            }
+          }
+        },
         {
           "description": "Current generation for the data stream. This number acts as a cumulative count of the stream’s rollovers, starting at 1.",
           "name": "generation",
@@ -114927,6 +114939,18 @@
             }
           }
         },
+        {
+          "description": "If `true`, the next write to this data stream will trigger a rollover first and the document will be indexed in the new backing index. If the rollover fails the indexing request will fail too.",
+          "name": "rollover_on_write",
+          "required": true,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "boolean",
+              "namespace": "_builtins"
+            }
+          }
+        },
         {
           "description": "Health status of the data stream.\nThis health status is based on the state of the primary and replica shards of the stream’s backing indices.",
           "name": "status",
@@ -114982,7 +115006,53 @@
           }
         }
       ],
-      "specLocation": "indices/_types/DataStream.ts#L39-L112"
+      "specLocation": "indices/_types/DataStream.ts#L45-L127"
+    },
+    {
+      "kind": "interface",
+      "name": {
+        "name": "FailureStore",
+        "namespace": "indices._types"
+      },
+      "properties": [
+        {
+          "name": "enabled",
+          "required": true,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "boolean",
+              "namespace": "_builtins"
+            }
+          }
+        },
+        {
+          "name": "indices",
+          "required": true,
+          "type": {
+            "kind": "array_of",
+            "value": {
+              "kind": "instance_of",
+              "type": {
+                "name": "DataStreamIndex",
+                "namespace": "indices._types"
+              }
+            }
+          }
+        },
+        {
+          "name": "rollover_on_write",
+          "required": true,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "boolean",
+              "namespace": "_builtins"
+            }
+          }
+        }
+      ],
+      "specLocation": "indices/_types/DataStream.ts#L39-L43"
     },
     {
       "kind": "interface",
@@ -115030,7 +115100,7 @@
         {
           "description": "Name of the lifecycle system that's currently managing this backing index.",
           "name": "managed_by",
-          "required": true,
+          "required": false,
           "type": {
             "kind": "instance_of",
             "type": {
@@ -115042,7 +115112,7 @@
         {
           "description": "Indicates if ILM should take precedence over DSL in case both are configured to manage this index.",
           "name": "prefer_ilm",
-          "required": true,
+          "required": false,
           "type": {
             "kind": "instance_of",
             "type": {
@@ -115052,7 +115122,7 @@
           }
         }
       ],
-      "specLocation": "indices/_types/DataStream.ts#L121-L142"
+      "specLocation": "indices/_types/DataStream.ts#L136-L157"
     },
     {
       "kind": "interface",
@@ -115074,7 +115144,7 @@
           }
         }
       ],
-      "specLocation": "indices/_types/DataStream.ts#L114-L119"
+      "specLocation": "indices/_types/DataStream.ts#L129-L134"
     },
     {
       "kind": "interface",
@@ -115530,7 +115600,7 @@
           }
         }
       ],
-      "specLocation": "indices/_types/DataStream.ts#L144-L146"
+      "specLocation": "indices/_types/DataStream.ts#L159-L161"
     },
     {
       "kind": "interface",
diff --git a/output/schema/schema.json b/output/schema/schema.json
index 473f7cd921..14a5b32613 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -118048,6 +118048,18 @@
             }
           }
         },
+        {
+          "description": "Information about failure store backing indices",
+          "name": "failure_store",
+          "required": false,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "FailureStore",
+              "namespace": "indices._types"
+            }
+          }
+        },
         {
           "description": "Current generation for the data stream. This number acts as a cumulative count of the stream’s rollovers, starting at 1.",
           "name": "generation",
@@ -118168,6 +118180,18 @@
             }
           }
         },
+        {
+          "description": "If `true`, the next write to this data stream will trigger a rollover first and the document will be indexed in the new backing index. If the rollover fails the indexing request will fail too.",
+          "name": "rollover_on_write",
+          "required": true,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "boolean",
+              "namespace": "_builtins"
+            }
+          }
+        },
         {
           "description": "Health status of the data stream.\nThis health status is based on the state of the primary and replica shards of the stream’s backing indices.",
           "name": "status",
@@ -118223,7 +118247,7 @@
           }
         }
       ],
-      "specLocation": "indices/_types/DataStream.ts#L39-L112"
+      "specLocation": "indices/_types/DataStream.ts#L45-L127"
     },
     {
       "kind": "interface",
@@ -118271,7 +118295,7 @@
         {
           "description": "Name of the lifecycle system that's currently managing this backing index.",
           "name": "managed_by",
-          "required": true,
+          "required": false,
           "type": {
             "kind": "instance_of",
             "type": {
@@ -118283,7 +118307,7 @@
         {
           "description": "Indicates if ILM should take precedence over DSL in case both are configured to manage this index.",
           "name": "prefer_ilm",
-          "required": true,
+          "required": false,
           "type": {
             "kind": "instance_of",
             "type": {
@@ -118293,7 +118317,7 @@
           }
         }
       ],
-      "specLocation": "indices/_types/DataStream.ts#L121-L142"
+      "specLocation": "indices/_types/DataStream.ts#L136-L157"
     },
     {
       "description": "Data stream lifecycle denotes that a data stream is managed by the data stream lifecycle and contains the configuration.",
@@ -118540,7 +118564,7 @@
           }
         }
       ],
-      "specLocation": "indices/_types/DataStream.ts#L114-L119"
+      "specLocation": "indices/_types/DataStream.ts#L129-L134"
     },
     {
       "kind": "interface",
@@ -118561,7 +118585,7 @@
           }
         }
       ],
-      "specLocation": "indices/_types/DataStream.ts#L144-L146"
+      "specLocation": "indices/_types/DataStream.ts#L159-L161"
     },
     {
       "kind": "interface",
@@ -118619,6 +118643,52 @@
       ],
       "specLocation": "indices/_types/DownsamplingRound.ts#L23-L32"
     },
+    {
+      "kind": "interface",
+      "name": {
+        "name": "FailureStore",
+        "namespace": "indices._types"
+      },
+      "properties": [
+        {
+          "name": "enabled",
+          "required": true,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "boolean",
+              "namespace": "_builtins"
+            }
+          }
+        },
+        {
+          "name": "indices",
+          "required": true,
+          "type": {
+            "kind": "array_of",
+            "value": {
+              "kind": "instance_of",
+              "type": {
+                "name": "DataStreamIndex",
+                "namespace": "indices._types"
+              }
+            }
+          }
+        },
+        {
+          "name": "rollover_on_write",
+          "required": true,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "boolean",
+              "namespace": "_builtins"
+            }
+          }
+        }
+      ],
+      "specLocation": "indices/_types/DataStream.ts#L39-L43"
+    },
     {
       "kind": "interface",
       "name": {
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index 383adae0d2..d93fa3c4a8 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -10424,6 +10424,7 @@ export interface IndicesCacheQueries {
 export interface IndicesDataStream {
   _meta?: Metadata
   allow_custom_routing?: boolean
+  failure_store?: IndicesFailureStore
   generation: integer
   hidden: boolean
   ilm_policy?: Name
@@ -10433,6 +10434,7 @@ export interface IndicesDataStream {
   lifecycle?: IndicesDataStreamLifecycleWithRollover
   name: DataStreamName
   replicated?: boolean
+  rollover_on_write: boolean
   status: HealthStatus
   system?: boolean
   template: Name
@@ -10443,8 +10445,8 @@ export interface IndicesDataStreamIndex {
   index_name: IndexName
   index_uuid: Uuid
   ilm_policy?: Name
-  managed_by: IndicesManagedBy
-  prefer_ilm: boolean
+  managed_by?: IndicesManagedBy
+  prefer_ilm?: boolean
 }
 
 export interface IndicesDataStreamLifecycle {
@@ -10492,6 +10494,12 @@ export interface IndicesDownsamplingRound {
   config: IndicesDownsampleConfig
 }
 
+export interface IndicesFailureStore {
+  enabled: boolean
+  indices: IndicesDataStreamIndex[]
+  rollover_on_write: boolean
+}
+
 export interface IndicesFielddataFrequencyFilter {
   max: double
   min: double
diff --git a/specification/indices/_types/DataStream.ts b/specification/indices/_types/DataStream.ts
index d7b1e1ba60..a9ac73b964 100644
--- a/specification/indices/_types/DataStream.ts
+++ b/specification/indices/_types/DataStream.ts
@@ -36,6 +36,12 @@ enum ManagedBy {
   unmanaged = 'Unmanaged'
 }
 
+export class FailureStore {
+  enabled: boolean
+  indices: DataStreamIndex[]
+  rollover_on_write: boolean
+}
+
 export class DataStream {
   /**
    * Custom metadata for the stream, copied from the `_meta` object of the stream’s matching index template.
@@ -47,6 +53,11 @@ export class DataStream {
    *  If `true`, the data stream allows custom routing on write request.
    */
   allow_custom_routing?: boolean
+  /**
+   * Information about failure store backing indices
+   *
+   */
+  failure_store?: FailureStore
   /**
    * Current generation for the data stream. This number acts as a cumulative count of the stream’s rollovers, starting at 1.
    */
@@ -89,6 +100,10 @@ export class DataStream {
    *  If `true`, the data stream is created and managed by cross-cluster replication and the local cluster can not write into this data stream or change its mappings.
    */
   replicated?: boolean
+  /**
+   * If `true`, the next write to this data stream will trigger a rollover first and the document will be indexed in the new backing index. If the rollover fails the indexing request will fail too.
+   */
+  rollover_on_write: boolean
   /**
    * Health status of the data stream.
    * This health status is based on the state of the primary and replica shards of the stream’s backing indices.
@@ -134,11 +149,11 @@ export class DataStreamIndex {
   /**
    * Name of the lifecycle system that's currently managing this backing index.
    */
-  managed_by: ManagedBy
+  managed_by?: ManagedBy
   /**
    * Indicates if ILM should take precedence over DSL in case both are configured to manage this index.
    */
-  prefer_ilm: boolean
+  prefer_ilm?: boolean
 }
 
 export class DataStreamVisibility {