diff --git a/OpenSearch.openapi.json b/OpenSearch.openapi.json
index fc0588afa..aa4420c5a 100644
--- a/OpenSearch.openapi.json
+++ b/OpenSearch.openapi.json
@@ -8228,6 +8228,16 @@
                             "description": "Specify whether the index should be flushed after performing the operation."
                         }
                     },
+                    {
+                        "name": "primary_only",
+                        "in": "query",
+                        "description": "Specify whether the operation should only perform on primary shards. Defaults to false.",
+                        "schema": {
+                            "type": "boolean",
+                            "default": false,
+                            "description": "Specify whether the operation should only perform on primary shards. Defaults to false."
+                        }
+                    },
                     {
                         "name": "ignore_unavailable",
                         "in": "query",
@@ -13189,13 +13199,13 @@
                 "x-version-added": "1.0"
             }
         },
-        "/_plugins/_knn/{nodeId}/stats": {
+        "/_plugins/_knn/{node_id}/stats": {
             "get": {
                 "description": "Provides information about the current status of the k-NN plugin.",
                 "operationId": "KNNStats_WithNodeId",
                 "parameters": [
                     {
-                        "name": "nodeId",
+                        "name": "node_id",
                         "in": "path",
                         "description": "Comma-separated list of node IDs or names to limit the returned information; use `_local` to return information from the node you're connecting to, leave empty to get information from all nodes.",
                         "schema": {
@@ -13227,13 +13237,13 @@
                 "x-version-added": "1.0"
             }
         },
-        "/_plugins/_knn/{nodeId}/stats/{stat}": {
+        "/_plugins/_knn/{node_id}/stats/{stat}": {
             "get": {
                 "description": "Provides information about the current status of the k-NN plugin.",
                 "operationId": "KNNStats_WithStatNodeId",
                 "parameters": [
                     {
-                        "name": "nodeId",
+                        "name": "node_id",
                         "in": "path",
                         "description": "Comma-separated list of node IDs or names to limit the returned information; use `_local` to return information from the node you're connecting to, leave empty to get information from all nodes.",
                         "schema": {
@@ -16433,6 +16443,16 @@
                             "type": "string",
                             "description": "Customizable sequence of processing stages applied to search queries."
                         }
+                    },
+                    {
+                        "name": "include_named_queries_score",
+                        "in": "query",
+                        "description": "Indicates whether hit.matched_queries should be rendered as a map that includes the name of the matched query associated with its score (true) or as an array containing the name of the matched queries (false)",
+                        "schema": {
+                            "type": "boolean",
+                            "default": false,
+                            "description": "Indicates whether hit.matched_queries should be rendered as a map that includes the name of the matched query associated with its score (true) or as an array containing the name of the matched queries (false)"
+                        }
                     }
                 ],
                 "responses": {
@@ -16926,6 +16946,16 @@
                             "type": "string",
                             "description": "Customizable sequence of processing stages applied to search queries."
                         }
+                    },
+                    {
+                        "name": "include_named_queries_score",
+                        "in": "query",
+                        "description": "Indicates whether hit.matched_queries should be rendered as a map that includes the name of the matched query associated with its score (true) or as an array containing the name of the matched queries (false)",
+                        "schema": {
+                            "type": "boolean",
+                            "default": false,
+                            "description": "Indicates whether hit.matched_queries should be rendered as a map that includes the name of the matched query associated with its score (true) or as an array containing the name of the matched queries (false)"
+                        }
                     }
                 ],
                 "responses": {
@@ -25493,6 +25523,16 @@
                             "description": "Specify whether the index should be flushed after performing the operation."
                         }
                     },
+                    {
+                        "name": "primary_only",
+                        "in": "query",
+                        "description": "Specify whether the operation should only perform on primary shards. Defaults to false.",
+                        "schema": {
+                            "type": "boolean",
+                            "default": false,
+                            "description": "Specify whether the operation should only perform on primary shards. Defaults to false."
+                        }
+                    },
                     {
                         "name": "ignore_unavailable",
                         "in": "query",
@@ -27741,6 +27781,16 @@
                             "type": "string",
                             "description": "Customizable sequence of processing stages applied to search queries."
                         }
+                    },
+                    {
+                        "name": "include_named_queries_score",
+                        "in": "query",
+                        "description": "Indicates whether hit.matched_queries should be rendered as a map that includes the name of the matched query associated with its score (true) or as an array containing the name of the matched queries (false)",
+                        "schema": {
+                            "type": "boolean",
+                            "default": false,
+                            "description": "Indicates whether hit.matched_queries should be rendered as a map that includes the name of the matched query associated with its score (true) or as an array containing the name of the matched queries (false)"
+                        }
                     }
                 ],
                 "responses": {
@@ -28253,6 +28303,16 @@
                             "type": "string",
                             "description": "Customizable sequence of processing stages applied to search queries."
                         }
+                    },
+                    {
+                        "name": "include_named_queries_score",
+                        "in": "query",
+                        "description": "Indicates whether hit.matched_queries should be rendered as a map that includes the name of the matched query associated with its score (true) or as an array containing the name of the matched queries (false)",
+                        "schema": {
+                            "type": "boolean",
+                            "default": false,
+                            "description": "Indicates whether hit.matched_queries should be rendered as a map that includes the name of the matched query associated with its score (true) or as an array containing the name of the matched queries (false)"
+                        }
                     }
                 ],
                 "responses": {