diff --git a/clients/google-api-services-alertcenter/v1beta1/2.0.0/README.md b/clients/google-api-services-alertcenter/v1beta1/2.0.0/README.md
index 6b9cf971375..d1b651b621b 100644
--- a/clients/google-api-services-alertcenter/v1beta1/2.0.0/README.md
+++ b/clients/google-api-services-alertcenter/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-alertcenter</artifactId>
-      <version>v1beta1-rev20260921-2.9.2</version>
+      <version>v1beta1-rev20261030-2.9.2</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-alertcenter:v1beta1-rev20260921-2.9.2'
+  implementation 'com.google.apis:google-api-services-alertcenter:v1beta1-rev20261030-2.9.2'
 }
 ```
 
diff --git a/clients/google-api-services-alertcenter/v1beta1/2.0.0/com/google/api/services/alertcenter/v1beta1/model/AlertDetail.java b/clients/google-api-services-alertcenter/v1beta1/2.0.0/com/google/api/services/alertcenter/v1beta1/model/AlertDetail.java
new file mode 100644
index 00000000000..0c66e020661
--- /dev/null
+++ b/clients/google-api-services-alertcenter/v1beta1/2.0.0/com/google/api/services/alertcenter/v1beta1/model/AlertDetail.java
@@ -0,0 +1,91 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+/*
+ * This code was generated by https://github.com/googleapis/google-api-java-client-services/
+ * Modify at your own risk.
+ */
+
+package com.google.api.services.alertcenter.v1beta1.model;
+
+/**
+ * The alert data relevant for this alert
+ *
+ * <p> This is the Java data model class that specifies how to parse/serialize into the JSON that is
+ * transmitted over HTTP when working with the Google Workspace Alert Center API. For a detailed
+ * explanation see:
+ * <a href="https://developers.google.com/api-client-library/java/google-http-java-client/json">https://developers.google.com/api-client-library/java/google-http-java-client/json</a>
+ * </p>
+ *
+ * @author Google, Inc.
+ */
+@SuppressWarnings("javadoc")
+public final class AlertDetail extends com.google.api.client.json.GenericJson {
+
+  /**
+   * Audit data key
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String fieldName;
+
+  /**
+   * Audit data values
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.util.List<SystemDefinedAlertDataAlertDetailFieldValue> fieldValues;
+
+  /**
+   * Audit data key
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getFieldName() {
+    return fieldName;
+  }
+
+  /**
+   * Audit data key
+   * @param fieldName fieldName or {@code null} for none
+   */
+  public AlertDetail setFieldName(java.lang.String fieldName) {
+    this.fieldName = fieldName;
+    return this;
+  }
+
+  /**
+   * Audit data values
+   * @return value or {@code null} for none
+   */
+  public java.util.List<SystemDefinedAlertDataAlertDetailFieldValue> getFieldValues() {
+    return fieldValues;
+  }
+
+  /**
+   * Audit data values
+   * @param fieldValues fieldValues or {@code null} for none
+   */
+  public AlertDetail setFieldValues(java.util.List<SystemDefinedAlertDataAlertDetailFieldValue> fieldValues) {
+    this.fieldValues = fieldValues;
+    return this;
+  }
+
+  @Override
+  public AlertDetail set(String fieldName, Object value) {
+    return (AlertDetail) super.set(fieldName, value);
+  }
+
+  @Override
+  public AlertDetail clone() {
+    return (AlertDetail) super.clone();
+  }
+
+}
diff --git a/clients/google-api-services-alertcenter/v1beta1/2.0.0/com/google/api/services/alertcenter/v1beta1/model/SystemDefinedAlertData.java b/clients/google-api-services-alertcenter/v1beta1/2.0.0/com/google/api/services/alertcenter/v1beta1/model/SystemDefinedAlertData.java
new file mode 100644
index 00000000000..7fd2693b2cc
--- /dev/null
+++ b/clients/google-api-services-alertcenter/v1beta1/2.0.0/com/google/api/services/alertcenter/v1beta1/model/SystemDefinedAlertData.java
@@ -0,0 +1,73 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+/*
+ * This code was generated by https://github.com/googleapis/google-api-java-client-services/
+ * Modify at your own risk.
+ */
+
+package com.google.api.services.alertcenter.v1beta1.model;
+
+/**
+ * System defined alerts which trigger when an relevant audit event occures.
+ *
+ * <p> This is the Java data model class that specifies how to parse/serialize into the JSON that is
+ * transmitted over HTTP when working with the Google Workspace Alert Center API. For a detailed
+ * explanation see:
+ * <a href="https://developers.google.com/api-client-library/java/google-http-java-client/json">https://developers.google.com/api-client-library/java/google-http-java-client/json</a>
+ * </p>
+ *
+ * @author Google, Inc.
+ */
+@SuppressWarnings("javadoc")
+public final class SystemDefinedAlertData extends com.google.api.client.json.GenericJson {
+
+  /**
+   * Details of the conditions which led to alert being created
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.util.List<AlertDetail> alertDetails;
+
+  static {
+    // hack to force ProGuard to consider AlertDetail used, since otherwise it would be stripped out
+    // see https://github.com/google/google-api-java-client/issues/543
+    com.google.api.client.util.Data.nullOf(AlertDetail.class);
+  }
+
+  /**
+   * Details of the conditions which led to alert being created
+   * @return value or {@code null} for none
+   */
+  public java.util.List<AlertDetail> getAlertDetails() {
+    return alertDetails;
+  }
+
+  /**
+   * Details of the conditions which led to alert being created
+   * @param alertDetails alertDetails or {@code null} for none
+   */
+  public SystemDefinedAlertData setAlertDetails(java.util.List<AlertDetail> alertDetails) {
+    this.alertDetails = alertDetails;
+    return this;
+  }
+
+  @Override
+  public SystemDefinedAlertData set(String fieldName, Object value) {
+    return (SystemDefinedAlertData) super.set(fieldName, value);
+  }
+
+  @Override
+  public SystemDefinedAlertData clone() {
+    return (SystemDefinedAlertData) super.clone();
+  }
+
+}
diff --git a/clients/google-api-services-alertcenter/v1beta1/2.0.0/com/google/api/services/alertcenter/v1beta1/model/SystemDefinedAlertDataAlertDetailFieldValue.java b/clients/google-api-services-alertcenter/v1beta1/2.0.0/com/google/api/services/alertcenter/v1beta1/model/SystemDefinedAlertDataAlertDetailFieldValue.java
new file mode 100644
index 00000000000..69b2364c8a6
--- /dev/null
+++ b/clients/google-api-services-alertcenter/v1beta1/2.0.0/com/google/api/services/alertcenter/v1beta1/model/SystemDefinedAlertDataAlertDetailFieldValue.java
@@ -0,0 +1,139 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+/*
+ * This code was generated by https://github.com/googleapis/google-api-java-client-services/
+ * Modify at your own risk.
+ */
+
+package com.google.api.services.alertcenter.v1beta1.model;
+
+/**
+ * Audit data value
+ *
+ * <p> This is the Java data model class that specifies how to parse/serialize into the JSON that is
+ * transmitted over HTTP when working with the Google Workspace Alert Center API. For a detailed
+ * explanation see:
+ * <a href="https://developers.google.com/api-client-library/java/google-http-java-client/json">https://developers.google.com/api-client-library/java/google-http-java-client/json</a>
+ * </p>
+ *
+ * @author Google, Inc.
+ */
+@SuppressWarnings("javadoc")
+public final class SystemDefinedAlertDataAlertDetailFieldValue extends com.google.api.client.json.GenericJson {
+
+  /**
+   * Value if the type is boolean
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.Boolean boolValue;
+
+  /**
+   * Value if the type is integer
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key @com.google.api.client.json.JsonString
+  private java.lang.Long intValue;
+
+  /**
+   * Value if the type is string
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String stringValue;
+
+  /**
+   * Value is the type is a timestamp
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private String timestampValue;
+
+  /**
+   * Value if the type is boolean
+   * @return value or {@code null} for none
+   */
+  public java.lang.Boolean getBoolValue() {
+    return boolValue;
+  }
+
+  /**
+   * Value if the type is boolean
+   * @param boolValue boolValue or {@code null} for none
+   */
+  public SystemDefinedAlertDataAlertDetailFieldValue setBoolValue(java.lang.Boolean boolValue) {
+    this.boolValue = boolValue;
+    return this;
+  }
+
+  /**
+   * Value if the type is integer
+   * @return value or {@code null} for none
+   */
+  public java.lang.Long getIntValue() {
+    return intValue;
+  }
+
+  /**
+   * Value if the type is integer
+   * @param intValue intValue or {@code null} for none
+   */
+  public SystemDefinedAlertDataAlertDetailFieldValue setIntValue(java.lang.Long intValue) {
+    this.intValue = intValue;
+    return this;
+  }
+
+  /**
+   * Value if the type is string
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getStringValue() {
+    return stringValue;
+  }
+
+  /**
+   * Value if the type is string
+   * @param stringValue stringValue or {@code null} for none
+   */
+  public SystemDefinedAlertDataAlertDetailFieldValue setStringValue(java.lang.String stringValue) {
+    this.stringValue = stringValue;
+    return this;
+  }
+
+  /**
+   * Value is the type is a timestamp
+   * @return value or {@code null} for none
+   */
+  public String getTimestampValue() {
+    return timestampValue;
+  }
+
+  /**
+   * Value is the type is a timestamp
+   * @param timestampValue timestampValue or {@code null} for none
+   */
+  public SystemDefinedAlertDataAlertDetailFieldValue setTimestampValue(String timestampValue) {
+    this.timestampValue = timestampValue;
+    return this;
+  }
+
+  @Override
+  public SystemDefinedAlertDataAlertDetailFieldValue set(String fieldName, Object value) {
+    return (SystemDefinedAlertDataAlertDetailFieldValue) super.set(fieldName, value);
+  }
+
+  @Override
+  public SystemDefinedAlertDataAlertDetailFieldValue clone() {
+    return (SystemDefinedAlertDataAlertDetailFieldValue) super.clone();
+  }
+
+}
diff --git a/clients/google-api-services-alertcenter/v1beta1/2.0.0/pom.xml b/clients/google-api-services-alertcenter/v1beta1/2.0.0/pom.xml
index ca1f80456d7..554e6d92152 100644
--- a/clients/google-api-services-alertcenter/v1beta1/2.0.0/pom.xml
+++ b/clients/google-api-services-alertcenter/v1beta1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-alertcenter</artifactId>
-  <version>v1beta1-rev20260921-2.9.2</version>
-  <name>Google Workspace Alert Center API v1beta1-rev20260921-2.9.2</name>
+  <version>v1beta1-rev20261030-2.9.2</version>
+  <name>Google Workspace Alert Center API v1beta1-rev20261030-2.9.2</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-alertcenter/v1beta1/README.md b/clients/google-api-services-alertcenter/v1beta1/README.md
index 6b9cf971375..d1b651b621b 100644
--- a/clients/google-api-services-alertcenter/v1beta1/README.md
+++ b/clients/google-api-services-alertcenter/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-alertcenter</artifactId>
-      <version>v1beta1-rev20260921-2.9.2</version>
+      <version>v1beta1-rev20261030-2.9.2</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-alertcenter:v1beta1-rev20260921-2.9.2'
+  implementation 'com.google.apis:google-api-services-alertcenter:v1beta1-rev20261030-2.9.2'
 }
 ```