diff --git a/clients/google-api-services-networksecurity/v1/2.0.0/README.md b/clients/google-api-services-networksecurity/v1/2.0.0/README.md
index 3c7f0059ea6..4c958ae5dca 100644
--- a/clients/google-api-services-networksecurity/v1/2.0.0/README.md
+++ b/clients/google-api-services-networksecurity/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-networksecurity</artifactId>
-      <version>v1-rev20260707-2.0.0</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-networksecurity:v1-rev20260707-2.0.0'
+  implementation 'com.google.apis:google-api-services-networksecurity:v1-rev20260729-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-networksecurity/v1/2.0.0/com/google/api/services/networksecurity/v1/NetworkSecurity.java b/clients/google-api-services-networksecurity/v1/2.0.0/com/google/api/services/networksecurity/v1/NetworkSecurity.java
index 715cd19ba81..9003ea59c5b 100644
--- a/clients/google-api-services-networksecurity/v1/2.0.0/com/google/api/services/networksecurity/v1/NetworkSecurity.java
+++ b/clients/google-api-services-networksecurity/v1/2.0.0/com/google/api/services/networksecurity/v1/NetworkSecurity.java
@@ -2509,6 +2509,28 @@ public Create setRequestId(java.lang.String requestId) {
             return this;
           }
 
+          /**
+           * Optional. If set, validate the request and preview the endpoint, but do not actually
+           * create it.
+           */
+          @com.google.api.client.util.Key
+          private java.lang.Boolean validateOnly;
+
+          /** Optional. If set, validate the request and preview the endpoint, but do not actually create it.
+           */
+          public java.lang.Boolean getValidateOnly() {
+            return validateOnly;
+          }
+
+          /**
+           * Optional. If set, validate the request and preview the endpoint, but do not actually
+           * create it.
+           */
+          public Create setValidateOnly(java.lang.Boolean validateOnly) {
+            this.validateOnly = validateOnly;
+            return this;
+          }
+
           @Override
           public Create set(String parameterName, Object value) {
             return (Create) super.set(parameterName, value);
@@ -15066,6 +15088,28 @@ public Create setRequestId(java.lang.String requestId) {
             return this;
           }
 
+          /**
+           * Optional. If set, validate the request and preview the endpoint, but do not actually
+           * create it.
+           */
+          @com.google.api.client.util.Key
+          private java.lang.Boolean validateOnly;
+
+          /** Optional. If set, validate the request and preview the endpoint, but do not actually create it.
+           */
+          public java.lang.Boolean getValidateOnly() {
+            return validateOnly;
+          }
+
+          /**
+           * Optional. If set, validate the request and preview the endpoint, but do not actually
+           * create it.
+           */
+          public Create setValidateOnly(java.lang.Boolean validateOnly) {
+            this.validateOnly = validateOnly;
+            return this;
+          }
+
           @Override
           public Create set(String parameterName, Object value) {
             return (Create) super.set(parameterName, value);
diff --git a/clients/google-api-services-networksecurity/v1/2.0.0/pom.xml b/clients/google-api-services-networksecurity/v1/2.0.0/pom.xml
index 43c229f3ced..644961e9bbb 100644
--- a/clients/google-api-services-networksecurity/v1/2.0.0/pom.xml
+++ b/clients/google-api-services-networksecurity/v1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-networksecurity</artifactId>
-  <version>v1-rev20260707-2.0.0</version>
-  <name>Network Security API v1-rev20260707-2.0.0</name>
+  <version>v1-rev20260729-2.0.0</version>
+  <name>Network Security API v1-rev20260729-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-networksecurity/v1/README.md b/clients/google-api-services-networksecurity/v1/README.md
index 3c7f0059ea6..4c958ae5dca 100644
--- a/clients/google-api-services-networksecurity/v1/README.md
+++ b/clients/google-api-services-networksecurity/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-networksecurity</artifactId>
-      <version>v1-rev20260707-2.0.0</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-networksecurity:v1-rev20260707-2.0.0'
+  implementation 'com.google.apis:google-api-services-networksecurity:v1-rev20260729-2.0.0'
 }
 ```