diff --git a/clients/google-api-services-container/v1beta1/2.0.0/README.md b/clients/google-api-services-container/v1beta1/2.0.0/README.md
index 021266b8056..5cf555e22fb 100644
--- a/clients/google-api-services-container/v1beta1/2.0.0/README.md
+++ b/clients/google-api-services-container/v1beta1/2.0.0/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-container</artifactId>
-      <version>v1beta1-rev20260630-2.0.0</version>
+      <version>v1beta1-rev20260727-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-container:v1beta1-rev20260630-2.0.0'
+  implementation 'com.google.apis:google-api-services-container:v1beta1-rev20260727-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-container/v1beta1/2.0.0/com/google/api/services/container/v1beta1/model/ReleaseChannelConfig.java b/clients/google-api-services-container/v1beta1/2.0.0/com/google/api/services/container/v1beta1/model/ReleaseChannelConfig.java
index faa971178de..7d3bc5b37b9 100644
--- a/clients/google-api-services-container/v1beta1/2.0.0/com/google/api/services/container/v1beta1/model/ReleaseChannelConfig.java
+++ b/clients/google-api-services-container/v1beta1/2.0.0/com/google/api/services/container/v1beta1/model/ReleaseChannelConfig.java
@@ -50,6 +50,13 @@ public final class ReleaseChannelConfig extends com.google.api.client.json.Gener
   @com.google.api.client.util.Key
   private java.lang.String channel;
 
+  /**
+   * Output only. List of custom versions for the channel.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.util.List<java.lang.String> customVersions;
+
   /**
    * The default version for newly created clusters on the channel.
    * The value may be {@code null}.
@@ -105,6 +112,23 @@ public ReleaseChannelConfig setChannel(java.lang.String channel) {
     return this;
   }
 
+  /**
+   * Output only. List of custom versions for the channel.
+   * @return value or {@code null} for none
+   */
+  public java.util.List<java.lang.String> getCustomVersions() {
+    return customVersions;
+  }
+
+  /**
+   * Output only. List of custom versions for the channel.
+   * @param customVersions customVersions or {@code null} for none
+   */
+  public ReleaseChannelConfig setCustomVersions(java.util.List<java.lang.String> customVersions) {
+    this.customVersions = customVersions;
+    return this;
+  }
+
   /**
    * The default version for newly created clusters on the channel.
    * @return value or {@code null} for none
diff --git a/clients/google-api-services-container/v1beta1/2.0.0/pom.xml b/clients/google-api-services-container/v1beta1/2.0.0/pom.xml
index 76aa63c1474..b276e6901eb 100644
--- a/clients/google-api-services-container/v1beta1/2.0.0/pom.xml
+++ b/clients/google-api-services-container/v1beta1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-container</artifactId>
-  <version>v1beta1-rev20260630-2.0.0</version>
-  <name>Kubernetes Engine API v1beta1-rev20260630-2.0.0</name>
+  <version>v1beta1-rev20260727-2.0.0</version>
+  <name>Kubernetes Engine API v1beta1-rev20260727-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-container/v1beta1/README.md b/clients/google-api-services-container/v1beta1/README.md
index 021266b8056..5cf555e22fb 100644
--- a/clients/google-api-services-container/v1beta1/README.md
+++ b/clients/google-api-services-container/v1beta1/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-container</artifactId>
-      <version>v1beta1-rev20260630-2.0.0</version>
+      <version>v1beta1-rev20260727-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-container:v1beta1-rev20260630-2.0.0'
+  implementation 'com.google.apis:google-api-services-container:v1beta1-rev20260727-2.0.0'
 }
 ```