diff --git a/api/api/async_search.js b/api/api/async_search.js
index 0a16b39da..d7f719305 100644
--- a/api/api/async_search.js
+++ b/api/api/async_search.js
@@ -85,6 +85,33 @@ AsyncSearchApi.prototype.get = function asyncSearchGetApi (params, options, call
   return this.transport.request(request, options, callback)
 }
 
+AsyncSearchApi.prototype.status = function asyncSearchStatusApi (params, options, callback) {
+  ;[params, options, callback] = normalizeArguments(params, options, callback)
+
+  // check required parameters
+  if (params['id'] == null) {
+    const err = new this[kConfigurationError]('Missing required parameter: id')
+    return handleError(err, callback)
+  }
+
+  var { method, body, id, ...querystring } = params
+  querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
+
+  var path = ''
+  if (method == null) method = 'GET'
+  path = '/' + '_async_search' + '/' + 'status' + '/' + encodeURIComponent(id)
+
+  // build request object
+  const request = {
+    method,
+    path,
+    body: null,
+    querystring
+  }
+
+  return this.transport.request(request, options, callback)
+}
+
 AsyncSearchApi.prototype.submit = function asyncSearchSubmitApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
diff --git a/api/api/indices.js b/api/api/indices.js
index 9436f6708..c26897e10 100644
--- a/api/api/indices.js
+++ b/api/api/indices.js
@@ -777,13 +777,8 @@ IndicesApi.prototype.getUpgrade = function indicesGetUpgradeApi (params, options
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
   var path = ''
-  if ((index) != null) {
-    if (method == null) method = 'GET'
-    path = '/' + encodeURIComponent(index) + '/' + '_upgrade'
-  } else {
-    if (method == null) method = 'GET'
-    path = '/' + '_upgrade'
-  }
+  if (method == null) method = 'GET'
+  path = '/' + encodeURIComponent(index) + '/' + '_upgrade'
 
   // build request object
   const request = {
@@ -1371,13 +1366,8 @@ IndicesApi.prototype.upgrade = function indicesUpgradeApi (params, options, call
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
   var path = ''
-  if ((index) != null) {
-    if (method == null) method = 'POST'
-    path = '/' + encodeURIComponent(index) + '/' + '_upgrade'
-  } else {
-    if (method == null) method = 'POST'
-    path = '/' + '_upgrade'
-  }
+  if (method == null) method = 'POST'
+  path = '/' + encodeURIComponent(index) + '/' + '_upgrade'
 
   // build request object
   const request = {
diff --git a/api/kibana.d.ts b/api/kibana.d.ts
index 1d4f6ba57..ad78a0363 100644
--- a/api/kibana.d.ts
+++ b/api/kibana.d.ts
@@ -78,6 +78,7 @@ interface KibanaClient {
   asyncSearch: {
     delete<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.AsyncSearchDelete, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     get<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.AsyncSearchGet, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    status<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.AsyncSearchStatus, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     submit<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.AsyncSearchSubmit<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
   }
   autoscaling: {
diff --git a/api/requestParams.d.ts b/api/requestParams.d.ts
index 5adf67476..7a4df07fe 100644
--- a/api/requestParams.d.ts
+++ b/api/requestParams.d.ts
@@ -39,6 +39,10 @@ export interface AsyncSearchGet extends Generic {
   typed_keys?: boolean;
 }
 
+export interface AsyncSearchStatus extends Generic {
+  id: string;
+}
+
 export interface AsyncSearchSubmit<T = RequestBody> extends Generic {
   index?: string | string[];
   wait_for_completion_timeout?: string;
@@ -978,6 +982,7 @@ export interface IndicesDeleteAlias extends Generic {
 
 export interface IndicesDeleteDataStream extends Generic {
   name: string | string[];
+  expand_wildcards?: 'open' | 'closed' | 'hidden' | 'none' | 'all';
 }
 
 export interface IndicesDeleteIndexTemplate extends Generic {
@@ -1093,6 +1098,7 @@ export interface IndicesGetAlias extends Generic {
 
 export interface IndicesGetDataStream extends Generic {
   name?: string | string[];
+  expand_wildcards?: 'open' | 'closed' | 'hidden' | 'none' | 'all';
 }
 
 export interface IndicesGetFieldMapping extends Generic {
diff --git a/docs/reference.asciidoc b/docs/reference.asciidoc
index 6150ab345..fd9227c14 100644
--- a/docs/reference.asciidoc
+++ b/docs/reference.asciidoc
@@ -142,6 +142,23 @@ link:{ref}/async-search.html[Documentation] +
 
 |===
 
+[discrete]
+=== asyncSearch.status
+
+[source,ts]
+----
+client.asyncSearch.status({
+  id: string
+})
+----
+link:{ref}/async-search.html[Documentation] +
+[cols=2*]
+|===
+|`id`
+|`string` - The async search ID
+
+|===
+
 [discrete]
 === asyncSearch.submit
 
@@ -4047,7 +4064,8 @@ link:{ref}/indices-aliases.html[Documentation] +
 [source,ts]
 ----
 client.indices.deleteDataStream({
-  name: string | string[]
+  name: string | string[],
+  expand_wildcards: 'open' | 'closed' | 'hidden' | 'none' | 'all'
 })
 ----
 link:{ref}/data-streams.html[Documentation] +
@@ -4056,6 +4074,10 @@ link:{ref}/data-streams.html[Documentation] +
 |`name`
 |`string \| string[]` - A comma-separated list of data streams to delete; use `*` to delete all data streams
 
+|`expand_wildcards` or `expandWildcards`
+|`'open' \| 'closed' \| 'hidden' \| 'none' \| 'all'` - Whether wildcard expressions should get expanded to open or closed indices (default: open) +
+_Default:_ `open`
+
 |===
 
 [discrete]
@@ -4530,7 +4552,8 @@ _Default:_ `all`
 [source,ts]
 ----
 client.indices.getDataStream({
-  name: string | string[]
+  name: string | string[],
+  expand_wildcards: 'open' | 'closed' | 'hidden' | 'none' | 'all'
 })
 ----
 link:{ref}/data-streams.html[Documentation] +
@@ -4539,6 +4562,10 @@ link:{ref}/data-streams.html[Documentation] +
 |`name`
 |`string \| string[]` - A comma-separated list of data streams to get; use `*` to get all data streams
 
+|`expand_wildcards` or `expandWildcards`
+|`'open' \| 'closed' \| 'hidden' \| 'none' \| 'all'` - Whether wildcard expressions should get expanded to open or closed indices (default: open) +
+_Default:_ `open`
+
 |===
 
 [discrete]
diff --git a/index.d.ts b/index.d.ts
index 40ecdfa97..c6848ee6b 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -148,6 +148,10 @@ declare class Client {
     get<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     get<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.AsyncSearchGet, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     get<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.AsyncSearchGet, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    status<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.AsyncSearchStatus, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    status<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    status<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.AsyncSearchStatus, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    status<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.AsyncSearchStatus, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     submit<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.AsyncSearchSubmit<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     submit<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     submit<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.AsyncSearchSubmit<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
@@ -162,6 +166,10 @@ declare class Client {
     get<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     get<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.AsyncSearchGet, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     get<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.AsyncSearchGet, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    status<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.AsyncSearchStatus, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    status<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    status<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.AsyncSearchStatus, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    status<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.AsyncSearchStatus, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     submit<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.AsyncSearchSubmit<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     submit<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     submit<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.AsyncSearchSubmit<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback