diff --git a/output/openapi/elasticsearch-openapi.json b/output/openapi/elasticsearch-openapi.json
index ec0e06df55..f6f97994e6 100644
--- a/output/openapi/elasticsearch-openapi.json
+++ b/output/openapi/elasticsearch-openapi.json
@@ -8241,18 +8241,9 @@
           {
             "$ref": "#/components/parameters/create-id"
           },
-          {
-            "$ref": "#/components/parameters/create-if_primary_term"
-          },
-          {
-            "$ref": "#/components/parameters/create-if_seq_no"
-          },
           {
             "$ref": "#/components/parameters/create-include_source_on_error"
           },
-          {
-            "$ref": "#/components/parameters/create-op_type"
-          },
           {
             "$ref": "#/components/parameters/create-pipeline"
           },
@@ -8315,18 +8306,9 @@
           {
             "$ref": "#/components/parameters/create-id"
           },
-          {
-            "$ref": "#/components/parameters/create-if_primary_term"
-          },
-          {
-            "$ref": "#/components/parameters/create-if_seq_no"
-          },
           {
             "$ref": "#/components/parameters/create-include_source_on_error"
           },
-          {
-            "$ref": "#/components/parameters/create-op_type"
-          },
           {
             "$ref": "#/components/parameters/create-pipeline"
           },
@@ -10405,6 +10387,9 @@
           {
             "$ref": "#/components/parameters/eql.search-expand_wildcards"
           },
+          {
+            "$ref": "#/components/parameters/eql.search-ccs_minimize_roundtrips"
+          },
           {
             "$ref": "#/components/parameters/eql.search-ignore_unavailable"
           },
@@ -10460,6 +10445,9 @@
           {
             "$ref": "#/components/parameters/eql.search-expand_wildcards"
           },
+          {
+            "$ref": "#/components/parameters/eql.search-ccs_minimize_roundtrips"
+          },
           {
             "$ref": "#/components/parameters/eql.search-ignore_unavailable"
           },
@@ -80276,13 +80264,6 @@
           "scheduled"
         ]
       },
-      "_types.OpType": {
-        "type": "string",
-        "enum": [
-          "index",
-          "create"
-        ]
-      },
       "_types.WriteResponseBase": {
         "type": "object",
         "properties": {
@@ -82942,6 +82923,13 @@
           "phase"
         ]
       },
+      "_types.OpType": {
+        "type": "string",
+        "enum": [
+          "index",
+          "create"
+        ]
+      },
       "indices.add_block.IndicesBlockOptions": {
         "type": "string",
         "enum": [
@@ -115278,26 +115266,6 @@
         },
         "style": "simple"
       },
-      "create-if_primary_term": {
-        "in": "query",
-        "name": "if_primary_term",
-        "description": "Only perform the operation if the document has this primary term.",
-        "deprecated": false,
-        "schema": {
-          "type": "number"
-        },
-        "style": "form"
-      },
-      "create-if_seq_no": {
-        "in": "query",
-        "name": "if_seq_no",
-        "description": "Only perform the operation if the document has this sequence number.",
-        "deprecated": false,
-        "schema": {
-          "$ref": "#/components/schemas/_types.SequenceNumber"
-        },
-        "style": "form"
-      },
       "create-include_source_on_error": {
         "in": "query",
         "name": "include_source_on_error",
@@ -115308,16 +115276,6 @@
         },
         "style": "form"
       },
-      "create-op_type": {
-        "in": "query",
-        "name": "op_type",
-        "description": "Set to `create` to only index the document if it does not already exist (put if absent).\nIf a document with the specified `_id` already exists, the indexing operation will fail.\nThe behavior is the same as using the `<index>/_create` endpoint.\nIf a document ID is specified, this paramater defaults to `index`.\nOtherwise, it defaults to `create`.\nIf the request targets a data stream, an `op_type` of `create` is required.",
-        "deprecated": false,
-        "schema": {
-          "$ref": "#/components/schemas/_types.OpType"
-        },
-        "style": "form"
-      },
       "create-pipeline": {
         "in": "query",
         "name": "pipeline",
@@ -115443,6 +115401,7 @@
       "eql.search-allow_no_indices": {
         "in": "query",
         "name": "allow_no_indices",
+        "description": "Whether to ignore if a wildcard indices expression resolves into no concrete indices. (This includes `_all` string or when no indices have been specified)",
         "deprecated": false,
         "schema": {
           "type": "boolean"
@@ -115472,12 +115431,23 @@
       "eql.search-expand_wildcards": {
         "in": "query",
         "name": "expand_wildcards",
+        "description": "Whether to expand wildcard expression to concrete indices that are open, closed or both.",
         "deprecated": false,
         "schema": {
           "$ref": "#/components/schemas/_types.ExpandWildcards"
         },
         "style": "form"
       },
+      "eql.search-ccs_minimize_roundtrips": {
+        "in": "query",
+        "name": "ccs_minimize_roundtrips",
+        "description": "Indicates whether network round-trips should be minimized as part of cross-cluster search requests execution",
+        "deprecated": false,
+        "schema": {
+          "type": "boolean"
+        },
+        "style": "form"
+      },
       "eql.search-ignore_unavailable": {
         "in": "query",
         "name": "ignore_unavailable",
diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index 1ca471780a..b4924ae3f2 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -4138,18 +4138,9 @@
           {
             "$ref": "#/components/parameters/create-id"
           },
-          {
-            "$ref": "#/components/parameters/create-if_primary_term"
-          },
-          {
-            "$ref": "#/components/parameters/create-if_seq_no"
-          },
           {
             "$ref": "#/components/parameters/create-include_source_on_error"
           },
-          {
-            "$ref": "#/components/parameters/create-op_type"
-          },
           {
             "$ref": "#/components/parameters/create-pipeline"
           },
@@ -4212,18 +4203,9 @@
           {
             "$ref": "#/components/parameters/create-id"
           },
-          {
-            "$ref": "#/components/parameters/create-if_primary_term"
-          },
-          {
-            "$ref": "#/components/parameters/create-if_seq_no"
-          },
           {
             "$ref": "#/components/parameters/create-include_source_on_error"
           },
-          {
-            "$ref": "#/components/parameters/create-op_type"
-          },
           {
             "$ref": "#/components/parameters/create-pipeline"
           },
@@ -6055,6 +6037,9 @@
           {
             "$ref": "#/components/parameters/eql.search-expand_wildcards"
           },
+          {
+            "$ref": "#/components/parameters/eql.search-ccs_minimize_roundtrips"
+          },
           {
             "$ref": "#/components/parameters/eql.search-ignore_unavailable"
           },
@@ -6110,6 +6095,9 @@
           {
             "$ref": "#/components/parameters/eql.search-expand_wildcards"
           },
+          {
+            "$ref": "#/components/parameters/eql.search-ccs_minimize_roundtrips"
+          },
           {
             "$ref": "#/components/parameters/eql.search-ignore_unavailable"
           },
@@ -51689,13 +51677,6 @@
           "scheduled"
         ]
       },
-      "_types.OpType": {
-        "type": "string",
-        "enum": [
-          "index",
-          "create"
-        ]
-      },
       "_types.WriteResponseBase": {
         "type": "object",
         "properties": {
@@ -52730,6 +52711,13 @@
           "weight"
         ]
       },
+      "_types.OpType": {
+        "type": "string",
+        "enum": [
+          "index",
+          "create"
+        ]
+      },
       "indices.add_block.IndicesBlockOptions": {
         "type": "string",
         "enum": [
@@ -69198,26 +69186,6 @@
         },
         "style": "simple"
       },
-      "create-if_primary_term": {
-        "in": "query",
-        "name": "if_primary_term",
-        "description": "Only perform the operation if the document has this primary term.",
-        "deprecated": false,
-        "schema": {
-          "type": "number"
-        },
-        "style": "form"
-      },
-      "create-if_seq_no": {
-        "in": "query",
-        "name": "if_seq_no",
-        "description": "Only perform the operation if the document has this sequence number.",
-        "deprecated": false,
-        "schema": {
-          "$ref": "#/components/schemas/_types.SequenceNumber"
-        },
-        "style": "form"
-      },
       "create-include_source_on_error": {
         "in": "query",
         "name": "include_source_on_error",
@@ -69228,16 +69196,6 @@
         },
         "style": "form"
       },
-      "create-op_type": {
-        "in": "query",
-        "name": "op_type",
-        "description": "Set to `create` to only index the document if it does not already exist (put if absent).\nIf a document with the specified `_id` already exists, the indexing operation will fail.\nThe behavior is the same as using the `<index>/_create` endpoint.\nIf a document ID is specified, this paramater defaults to `index`.\nOtherwise, it defaults to `create`.\nIf the request targets a data stream, an `op_type` of `create` is required.",
-        "deprecated": false,
-        "schema": {
-          "$ref": "#/components/schemas/_types.OpType"
-        },
-        "style": "form"
-      },
       "create-pipeline": {
         "in": "query",
         "name": "pipeline",
@@ -69363,6 +69321,7 @@
       "eql.search-allow_no_indices": {
         "in": "query",
         "name": "allow_no_indices",
+        "description": "Whether to ignore if a wildcard indices expression resolves into no concrete indices. (This includes `_all` string or when no indices have been specified)",
         "deprecated": false,
         "schema": {
           "type": "boolean"
@@ -69392,12 +69351,23 @@
       "eql.search-expand_wildcards": {
         "in": "query",
         "name": "expand_wildcards",
+        "description": "Whether to expand wildcard expression to concrete indices that are open, closed or both.",
         "deprecated": false,
         "schema": {
           "$ref": "#/components/schemas/_types.ExpandWildcards"
         },
         "style": "form"
       },
+      "eql.search-ccs_minimize_roundtrips": {
+        "in": "query",
+        "name": "ccs_minimize_roundtrips",
+        "description": "Indicates whether network round-trips should be minimized as part of cross-cluster search requests execution",
+        "deprecated": false,
+        "schema": {
+          "type": "boolean"
+        },
+        "style": "form"
+      },
       "eql.search-ignore_unavailable": {
         "in": "query",
         "name": "ignore_unavailable",
diff --git a/output/schema/schema.json b/output/schema/schema.json
index bb5164272c..dbc807ecfa 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -25536,34 +25536,6 @@
         }
       ],
       "query": [
-        {
-          "description": "Only perform the operation if the document has this primary term.",
-          "extDocId": "optimistic-concurrency",
-          "extDocUrl": "https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/optimistic-concurrency-control.html",
-          "name": "if_primary_term",
-          "required": false,
-          "type": {
-            "kind": "instance_of",
-            "type": {
-              "name": "long",
-              "namespace": "_types"
-            }
-          }
-        },
-        {
-          "description": "Only perform the operation if the document has this sequence number.",
-          "extDocId": "optimistic-concurrency",
-          "extDocUrl": "https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/optimistic-concurrency-control.html",
-          "name": "if_seq_no",
-          "required": false,
-          "type": {
-            "kind": "instance_of",
-            "type": {
-              "name": "SequenceNumber",
-              "namespace": "_types"
-            }
-          }
-        },
         {
           "description": "True or false if to include the document source in the error message in case of parsing errors.",
           "name": "include_source_on_error",
@@ -25577,18 +25549,6 @@
             }
           }
         },
-        {
-          "description": "Set to `create` to only index the document if it does not already exist (put if absent).\nIf a document with the specified `_id` already exists, the indexing operation will fail.\nThe behavior is the same as using the `<index>/_create` endpoint.\nIf a document ID is specified, this paramater defaults to `index`.\nOtherwise, it defaults to `create`.\nIf the request targets a data stream, an `op_type` of `create` is required.",
-          "name": "op_type",
-          "required": false,
-          "type": {
-            "kind": "instance_of",
-            "type": {
-              "name": "OpType",
-              "namespace": "_types"
-            }
-          }
-        },
         {
           "description": "The ID of the pipeline to use to preprocess incoming documents.\nIf the index has a default ingest pipeline specified, setting the value to `_none` turns off the default ingest pipeline for this request.\nIf a final pipeline is configured, it will always run regardless of the value of this parameter.",
           "name": "pipeline",
@@ -25703,7 +25663,7 @@
           }
         }
       ],
-      "specLocation": "_global/create/CreateRequest.ts#L35-L221"
+      "specLocation": "_global/create/CreateRequest.ts#L32-L199"
     },
     {
       "kind": "response",
@@ -135068,6 +135028,7 @@
       ],
       "query": [
         {
+          "description": "Whether to ignore if a wildcard indices expression resolves into no concrete indices. (This includes `_all` string or when no indices have been specified)",
           "name": "allow_no_indices",
           "required": false,
           "serverDefault": true,
@@ -135106,6 +135067,7 @@
           }
         },
         {
+          "description": "Whether to expand wildcard expression to concrete indices that are open, closed or both.",
           "name": "expand_wildcards",
           "required": false,
           "serverDefault": "open",
@@ -135117,6 +135079,19 @@
             }
           }
         },
+        {
+          "description": "Indicates whether network round-trips should be minimized as part of cross-cluster search requests execution",
+          "name": "ccs_minimize_roundtrips",
+          "required": false,
+          "serverDefault": true,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "boolean",
+              "namespace": "_builtins"
+            }
+          }
+        },
         {
           "description": "If true, missing or closed indices are not included in the response.",
           "name": "ignore_unavailable",
@@ -135169,7 +135144,7 @@
           }
         }
       ],
-      "specLocation": "eql/search/EqlSearchRequest.ts#L28-L161"
+      "specLocation": "eql/search/EqlSearchRequest.ts#L28-L166"
     },
     {
       "kind": "response",
diff --git a/output/schema/validation-errors.json b/output/schema/validation-errors.json
index e1dec5963e..fcdc20d972 100644
--- a/output/schema/validation-errors.json
+++ b/output/schema/validation-errors.json
@@ -163,24 +163,6 @@
       ],
       "response": []
     },
-    "create": {
-      "request": [
-        "Request: query parameter 'if_primary_term' does not exist in the json spec",
-        "Request: query parameter 'if_seq_no' does not exist in the json spec",
-        "Request: query parameter 'op_type' does not exist in the json spec",
-        "Request: query parameter 'require_alias' does not exist in the json spec",
-        "Request: query parameter 'require_data_stream' does not exist in the json spec"
-      ],
-      "response": []
-    },
-    "eql.search": {
-      "request": [
-        "Request: query parameter 'allow_no_indices' does not exist in the json spec",
-        "Request: query parameter 'expand_wildcards' does not exist in the json spec",
-        "Request: query parameter 'ignore_unavailable' does not exist in the json spec"
-      ],
-      "response": []
-    },
     "esql.async_query_get": {
       "request": [
         "Request: query parameter 'format' does not exist in the json spec"
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index ff4abd6a57..22326f598c 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -159,10 +159,7 @@ export interface CountResponse {
 export interface CreateRequest<TDocument = unknown> extends RequestBase {
   id: Id
   index: IndexName
-  if_primary_term?: long
-  if_seq_no?: SequenceNumber
   include_source_on_error?: boolean
-  op_type?: OpType
   pipeline?: string
   refresh?: Refresh
   require_alias?: boolean
@@ -10836,6 +10833,7 @@ export interface EqlSearchRequest extends RequestBase {
   allow_partial_search_results?: boolean
   allow_partial_sequence_results?: boolean
   expand_wildcards?: ExpandWildcards
+  ccs_minimize_roundtrips?: boolean
   ignore_unavailable?: boolean
   keep_alive?: Duration
   keep_on_completion?: boolean
diff --git a/specification/_global/create/CreateRequest.ts b/specification/_global/create/CreateRequest.ts
index 35dcdcb72d..06e19ff024 100644
--- a/specification/_global/create/CreateRequest.ts
+++ b/specification/_global/create/CreateRequest.ts
@@ -21,15 +21,12 @@ import { RequestBase } from '@_types/Base'
 import {
   Id,
   IndexName,
-  OpType,
   Refresh,
   Routing,
-  SequenceNumber,
   VersionNumber,
   VersionType,
   WaitForActiveShards
 } from '@_types/common'
-import { long } from '@_types/Numeric'
 import { Duration } from '@_types/Time'
 
 /**
@@ -134,30 +131,11 @@ export interface Request<TDocument> extends RequestBase {
     index: IndexName
   }
   query_parameters: {
-    /**
-     * Only perform the operation if the document has this primary term.
-     * @ext_doc_id optimistic-concurrency
-     */
-    if_primary_term?: long
-    /**
-     * Only perform the operation if the document has this sequence number.
-     * @ext_doc_id optimistic-concurrency
-     */
-    if_seq_no?: SequenceNumber
     /**
      * True or false if to include the document source in the error message in case of parsing errors.
      * @server_default true
      */
     include_source_on_error?: boolean
-    /**
-     * Set to `create` to only index the document if it does not already exist (put if absent).
-     * If a document with the specified `_id` already exists, the indexing operation will fail.
-     * The behavior is the same as using the `<index>/_create` endpoint.
-     * If a document ID is specified, this paramater defaults to `index`.
-     * Otherwise, it defaults to `create`.
-     * If the request targets a data stream, an `op_type` of `create` is required.
-     */
-    op_type?: OpType
     /**
      * The ID of the pipeline to use to preprocess incoming documents.
      * If the index has a default ingest pipeline specified, setting the value to `_none` turns off the default ingest pipeline for this request.
diff --git a/specification/_json_spec/create.json b/specification/_json_spec/create.json
index ffa5e0f26e..03038a9366 100644
--- a/specification/_json_spec/create.json
+++ b/specification/_json_spec/create.json
@@ -62,6 +62,14 @@
       "include_source_on_error": {
         "type": "boolean",
         "description": "True or false if to include the document source in the error message in case of parsing errors. Defaults to true."
+      },
+      "require_alias": {
+        "type": "boolean",
+        "description": "When true, requires destination to be an alias. Default is false"
+      },
+      "require_data_stream": {
+        "type": "boolean",
+        "description": "When true, requires destination to be a data stream (existing or to be created). Default is false"
       }
     },
     "body": {
diff --git a/specification/_json_spec/eql.search.json b/specification/_json_spec/eql.search.json
index 1d9831a6e8..92568e69b1 100644
--- a/specification/_json_spec/eql.search.json
+++ b/specification/_json_spec/eql.search.json
@@ -48,6 +48,25 @@
         "type": "boolean",
         "description": "Control whether a sequence query should return partial results or no results at all in case of shard failures. This option has effect only if [allow_partial_search_results] is true.",
         "default": false
+      },
+      "ccs_minimize_roundtrips": {
+        "type": "boolean",
+        "description": "Indicates whether network round-trips should be minimized as part of cross-cluster search requests execution",
+        "default": true
+      },
+      "ignore_unavailable": {
+        "type": "boolean",
+        "description": "Whether specified concrete indices should be ignored when unavailable (missing or closed)"
+      },
+      "allow_no_indices": {
+        "type": "boolean",
+        "description": "Whether to ignore if a wildcard indices expression resolves into no concrete indices. (This includes `_all` string or when no indices have been specified)"
+      },
+      "expand_wildcards": {
+        "type": "enum",
+        "options": ["open", "closed", "hidden", "none", "all"],
+        "default": "open",
+        "description": "Whether to expand wildcard expression to concrete indices that are open, closed or both."
       }
     },
     "body": {
diff --git a/specification/eql/search/EqlSearchRequest.ts b/specification/eql/search/EqlSearchRequest.ts
index 3240d27584..049966f9a0 100644
--- a/specification/eql/search/EqlSearchRequest.ts
+++ b/specification/eql/search/EqlSearchRequest.ts
@@ -65,6 +65,11 @@ export interface Request extends RequestBase {
      * @server_default open
      */
     expand_wildcards?: ExpandWildcards
+    /**
+     * Indicates whether network round-trips should be minimized as part of cross-cluster search requests execution
+     * @server_default true
+     */
+    ccs_minimize_roundtrips?: boolean
     /**
      * If true, missing or closed indices are not included in the response.
      * @server_default true