diff --git a/clients/google-api-services-networkconnectivity/v1alpha1/2.0.0/README.md b/clients/google-api-services-networkconnectivity/v1alpha1/2.0.0/README.md
index d1c3f86bbde..7ec0be53fe7 100644
--- a/clients/google-api-services-networkconnectivity/v1alpha1/2.0.0/README.md
+++ b/clients/google-api-services-networkconnectivity/v1alpha1/2.0.0/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-networkconnectivity</artifactId>
-      <version>v1alpha1-rev20260701-2.0.0</version>
+      <version>v1alpha1-rev20260929-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-networkconnectivity:v1alpha1-rev20260701-2.0.0'
+  implementation 'com.google.apis:google-api-services-networkconnectivity:v1alpha1-rev20260929-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-networkconnectivity/v1alpha1/2.0.0/com/google/api/services/networkconnectivity/v1alpha1/model/InternalRange.java b/clients/google-api-services-networkconnectivity/v1alpha1/2.0.0/com/google/api/services/networkconnectivity/v1alpha1/model/InternalRange.java
index 86c97e6b18e..0c31d9f5f7e 100644
--- a/clients/google-api-services-networkconnectivity/v1alpha1/2.0.0/com/google/api/services/networkconnectivity/v1alpha1/model/InternalRange.java
+++ b/clients/google-api-services-networkconnectivity/v1alpha1/2.0.0/com/google/api/services/networkconnectivity/v1alpha1/model/InternalRange.java
@@ -139,6 +139,14 @@ public final class InternalRange extends com.google.api.client.json.GenericJson
   @com.google.api.client.util.Key
   private java.lang.Integer prefixLength;
 
+  /**
+   * Optional. The purpose of this internal range. Defines the intended use of the range and any
+   * restrictions associated with it. If not specified, it defaults to VPC_SUBNET.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String purpose;
+
   /**
    * Output only. Status of the Internal Range.
    * The value may be {@code null}.
@@ -435,6 +443,25 @@ public InternalRange setPrefixLength(java.lang.Integer prefixLength) {
     return this;
   }
 
+  /**
+   * Optional. The purpose of this internal range. Defines the intended use of the range and any
+   * restrictions associated with it. If not specified, it defaults to VPC_SUBNET.
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getPurpose() {
+    return purpose;
+  }
+
+  /**
+   * Optional. The purpose of this internal range. Defines the intended use of the range and any
+   * restrictions associated with it. If not specified, it defaults to VPC_SUBNET.
+   * @param purpose purpose or {@code null} for none
+   */
+  public InternalRange setPurpose(java.lang.String purpose) {
+    this.purpose = purpose;
+    return this;
+  }
+
   /**
    * Output only. Status of the Internal Range.
    * @return value or {@code null} for none
diff --git a/clients/google-api-services-networkconnectivity/v1alpha1/2.0.0/pom.xml b/clients/google-api-services-networkconnectivity/v1alpha1/2.0.0/pom.xml
index 87352a7dc04..eb01d14b7c7 100644
--- a/clients/google-api-services-networkconnectivity/v1alpha1/2.0.0/pom.xml
+++ b/clients/google-api-services-networkconnectivity/v1alpha1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-networkconnectivity</artifactId>
-  <version>v1alpha1-rev20260701-2.0.0</version>
-  <name>Network Connectivity API v1alpha1-rev20260701-2.0.0</name>
+  <version>v1alpha1-rev20260929-2.0.0</version>
+  <name>Network Connectivity API v1alpha1-rev20260929-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-networkconnectivity/v1alpha1/README.md b/clients/google-api-services-networkconnectivity/v1alpha1/README.md
index d1c3f86bbde..7ec0be53fe7 100644
--- a/clients/google-api-services-networkconnectivity/v1alpha1/README.md
+++ b/clients/google-api-services-networkconnectivity/v1alpha1/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-networkconnectivity</artifactId>
-      <version>v1alpha1-rev20260701-2.0.0</version>
+      <version>v1alpha1-rev20260929-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-networkconnectivity:v1alpha1-rev20260701-2.0.0'
+  implementation 'com.google.apis:google-api-services-networkconnectivity:v1alpha1-rev20260929-2.0.0'
 }
 ```