diff --git a/clients/google-api-services-cloudsearch/v1/2.0.0/README.md b/clients/google-api-services-cloudsearch/v1/2.0.0/README.md
index 1d6ef17fd00..25638db134d 100644
--- a/clients/google-api-services-cloudsearch/v1/2.0.0/README.md
+++ b/clients/google-api-services-cloudsearch/v1/2.0.0/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-cloudsearch</artifactId>
-      <version>v1-rev20260610-2.0.0</version>
+      <version>v1-rev20260729-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-cloudsearch:v1-rev20260610-2.0.0'
+  implementation 'com.google.apis:google-api-services-cloudsearch:v1-rev20260729-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-cloudsearch/v1/2.0.0/com/google/api/services/cloudsearch/v1/CloudSearch.java b/clients/google-api-services-cloudsearch/v1/2.0.0/com/google/api/services/cloudsearch/v1/CloudSearch.java
index c46672fbcc5..69857d10fdd 100644
--- a/clients/google-api-services-cloudsearch/v1/2.0.0/com/google/api/services/cloudsearch/v1/CloudSearch.java
+++ b/clients/google-api-services-cloudsearch/v1/2.0.0/com/google/api/services/cloudsearch/v1/CloudSearch.java
@@ -4438,6 +4438,29 @@ public List setRequestOptionsClientDisplayLanguageCode(java.lang.String requestO
           return this;
         }
 
+        /**
+         * Optional. Specifies the country/region where the query originated, as a lowercase ISO
+         * 3166-1 alpha-2 region code (using 'uk' instead of 'gb' for the United Kingdom).
+         */
+        @com.google.api.client.util.Key("requestOptions.countryCode")
+        private java.lang.String requestOptionsCountryCode;
+
+        /** Optional. Specifies the country/region where the query originated, as a lowercase ISO 3166-1
+       alpha-2 region code (using 'uk' instead of 'gb' for the United Kingdom).
+         */
+        public java.lang.String getRequestOptionsCountryCode() {
+          return requestOptionsCountryCode;
+        }
+
+        /**
+         * Optional. Specifies the country/region where the query originated, as a lowercase ISO
+         * 3166-1 alpha-2 region code (using 'uk' instead of 'gb' for the United Kingdom).
+         */
+        public List setRequestOptionsCountryCode(java.lang.String requestOptionsCountryCode) {
+          this.requestOptionsCountryCode = requestOptionsCountryCode;
+          return this;
+        }
+
         /**
          * If you are asked by Google to help with debugging, set this field. Otherwise, ignore this
          * field.
diff --git a/clients/google-api-services-cloudsearch/v1/2.0.0/com/google/api/services/cloudsearch/v1/model/RequestOptions.java b/clients/google-api-services-cloudsearch/v1/2.0.0/com/google/api/services/cloudsearch/v1/model/RequestOptions.java
index 51be4f341be..09c932b3331 100644
--- a/clients/google-api-services-cloudsearch/v1/2.0.0/com/google/api/services/cloudsearch/v1/model/RequestOptions.java
+++ b/clients/google-api-services-cloudsearch/v1/2.0.0/com/google/api/services/cloudsearch/v1/model/RequestOptions.java
@@ -37,6 +37,14 @@ public final class RequestOptions extends com.google.api.client.json.GenericJson
   @com.google.api.client.util.Key
   private java.lang.String clientDisplayLanguageCode;
 
+  /**
+   * Optional. Specifies the country/region where the query originated, as a lowercase ISO 3166-1
+   * alpha-2 region code (using 'uk' instead of 'gb' for the United Kingdom).
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String countryCode;
+
   /**
    * Debug options of the request
    * The value may be {@code null}.
@@ -95,6 +103,25 @@ public RequestOptions setClientDisplayLanguageCode(java.lang.String clientDispla
     return this;
   }
 
+  /**
+   * Optional. Specifies the country/region where the query originated, as a lowercase ISO 3166-1
+   * alpha-2 region code (using 'uk' instead of 'gb' for the United Kingdom).
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getCountryCode() {
+    return countryCode;
+  }
+
+  /**
+   * Optional. Specifies the country/region where the query originated, as a lowercase ISO 3166-1
+   * alpha-2 region code (using 'uk' instead of 'gb' for the United Kingdom).
+   * @param countryCode countryCode or {@code null} for none
+   */
+  public RequestOptions setCountryCode(java.lang.String countryCode) {
+    this.countryCode = countryCode;
+    return this;
+  }
+
   /**
    * Debug options of the request
    * @return value or {@code null} for none
diff --git a/clients/google-api-services-cloudsearch/v1/2.0.0/pom.xml b/clients/google-api-services-cloudsearch/v1/2.0.0/pom.xml
index acaf45099b4..605c49ac0e4 100644
--- a/clients/google-api-services-cloudsearch/v1/2.0.0/pom.xml
+++ b/clients/google-api-services-cloudsearch/v1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-cloudsearch</artifactId>
-  <version>v1-rev20260610-2.0.0</version>
-  <name>Cloud Search API v1-rev20260610-2.0.0</name>
+  <version>v1-rev20260729-2.0.0</version>
+  <name>Cloud Search API v1-rev20260729-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-cloudsearch/v1/README.md b/clients/google-api-services-cloudsearch/v1/README.md
index 1d6ef17fd00..25638db134d 100644
--- a/clients/google-api-services-cloudsearch/v1/README.md
+++ b/clients/google-api-services-cloudsearch/v1/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-cloudsearch</artifactId>
-      <version>v1-rev20260610-2.0.0</version>
+      <version>v1-rev20260729-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-cloudsearch:v1-rev20260610-2.0.0'
+  implementation 'com.google.apis:google-api-services-cloudsearch:v1-rev20260729-2.0.0'
 }
 ```