diff --git a/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/README.md b/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/README.md
index a23c84c58f2..55a17c8b5de 100644
--- a/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/README.md
+++ b/clients/google-api-services-contactcenteraiplatform/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-contactcenteraiplatform</artifactId>
-      <version>v1alpha1-rev20260108-2.0.0</version>
+      <version>v1alpha1-rev20260129-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-contactcenteraiplatform:v1alpha1-rev20260108-2.0.0'
+  implementation 'com.google.apis:google-api-services-contactcenteraiplatform:v1alpha1-rev20260129-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/com/google/api/services/contactcenteraiplatform/v1alpha1/CCAIPlatform.java b/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/com/google/api/services/contactcenteraiplatform/v1alpha1/CCAIPlatform.java
index 99f2c954726..b50409e1883 100644
--- a/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/com/google/api/services/contactcenteraiplatform/v1alpha1/CCAIPlatform.java
+++ b/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/com/google/api/services/contactcenteraiplatform/v1alpha1/CCAIPlatform.java
@@ -103,7 +103,7 @@ public class CCAIPlatform extends com.google.api.client.googleapis.services.json
    *        {@code com.google.api.client.extensions.appengine.http.UrlFetchTransport}</li>
    *        <li>Android: {@code newCompatibleTransport} from
    *        {@code com.google.api.client.extensions.android.http.AndroidHttp}</li>
-   *        <li>Java: {@link com.google.api.client.googleapis.javanet.GoogleNetHttpTransport#newTrustedTransport()}
+   *        <li>Java: {@code com.google.api.client.http.javanet.NetHttpTransport}</li>
    *        </li>
    *        </ul>
    * @param jsonFactory JSON factory, which may be:
@@ -454,7 +454,10 @@ public Get set(String parameterName, Object value) {
         }
       }
       /**
-       * Lists information about the supported locations for this service.
+       * Lists information about the supported locations for this service. This method can be called in
+       * two ways: * **List all public locations:** Use the path `GET /v1/locations`. * **List project-
+       * visible locations:** Use the path `GET /v1/projects/{project_id}/locations`. This may include
+       * public locations as well as private or other locations specifically visible to the project.
        *
        * Create a request for the method "locations.list".
        *
@@ -478,7 +481,10 @@ public class List extends CCAIPlatformRequest<com.google.api.services.contactcen
             java.util.regex.Pattern.compile("^projects/[^/]+$");
 
         /**
-         * Lists information about the supported locations for this service.
+         * Lists information about the supported locations for this service. This method can be called in
+         * two ways: * **List all public locations:** Use the path `GET /v1/locations`. * **List project-
+         * visible locations:** Use the path `GET /v1/projects/{project_id}/locations`. This may include
+         * public locations as well as private or other locations specifically visible to the project.
          *
          * Create a request for the method "locations.list".
          *
@@ -2463,8 +2469,7 @@ private static String chooseEndpoint(com.google.api.client.http.HttpTransport tr
      *        {@code com.google.api.client.extensions.appengine.http.UrlFetchTransport}</li>
      *        <li>Android: {@code newCompatibleTransport} from
      *        {@code com.google.api.client.extensions.android.http.AndroidHttp}</li>
-     *        <li>Java: {@link com.google.api.client.googleapis.javanet.GoogleNetHttpTransport#newTrustedTransport()}
-     *        </li>
+     *        <li>Java: {@code com.google.api.client.http.javanet.NetHttpTransport}</li>
      *        </ul>
      * @param jsonFactory JSON factory, which may be:
      *        <ul>
diff --git a/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/com/google/api/services/contactcenteraiplatform/v1alpha1/model/ContactCenter.java b/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/com/google/api/services/contactcenteraiplatform/v1alpha1/model/ContactCenter.java
index 60327126e5e..712c2c4a863 100644
--- a/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/com/google/api/services/contactcenteraiplatform/v1alpha1/model/ContactCenter.java
+++ b/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/com/google/api/services/contactcenteraiplatform/v1alpha1/model/ContactCenter.java
@@ -74,6 +74,13 @@ public final class ContactCenter extends com.google.api.client.json.GenericJson
   @com.google.api.client.util.Key
   private java.lang.String customerDomainPrefix;
 
+  /**
+   * Output only. Timestamp in UTC of when this resource was soft-deleted.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private String deleteTime;
+
   /**
    * Required. A user friendly name for the ContactCenter.
    * The value may be {@code null}.
@@ -88,6 +95,13 @@ public final class ContactCenter extends com.google.api.client.json.GenericJson
   @com.google.api.client.util.Key
   private Early early;
 
+  /**
+   * Output only. Timestamp in UTC of when this resource is considered expired.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private String expireTime;
+
   /**
    * Optional. Feature configuration to populate the feature flags.
    * The value may be {@code null}.
@@ -144,6 +158,13 @@ public final class ContactCenter extends com.google.api.client.json.GenericJson
   @com.google.api.client.util.Key
   private java.util.List<java.lang.String> privateComponents;
 
+  /**
+   * Output only. Timestamp in UTC of when this resource is going to be hard-deleted.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private String purgeTime;
+
   /**
    * Output only. UJET release version, unique for each new release.
    * The value may be {@code null}.
@@ -292,6 +313,23 @@ public ContactCenter setCustomerDomainPrefix(java.lang.String customerDomainPref
     return this;
   }
 
+  /**
+   * Output only. Timestamp in UTC of when this resource was soft-deleted.
+   * @return value or {@code null} for none
+   */
+  public String getDeleteTime() {
+    return deleteTime;
+  }
+
+  /**
+   * Output only. Timestamp in UTC of when this resource was soft-deleted.
+   * @param deleteTime deleteTime or {@code null} for none
+   */
+  public ContactCenter setDeleteTime(String deleteTime) {
+    this.deleteTime = deleteTime;
+    return this;
+  }
+
   /**
    * Required. A user friendly name for the ContactCenter.
    * @return value or {@code null} for none
@@ -326,6 +364,23 @@ public ContactCenter setEarly(Early early) {
     return this;
   }
 
+  /**
+   * Output only. Timestamp in UTC of when this resource is considered expired.
+   * @return value or {@code null} for none
+   */
+  public String getExpireTime() {
+    return expireTime;
+  }
+
+  /**
+   * Output only. Timestamp in UTC of when this resource is considered expired.
+   * @param expireTime expireTime or {@code null} for none
+   */
+  public ContactCenter setExpireTime(String expireTime) {
+    this.expireTime = expireTime;
+    return this;
+  }
+
   /**
    * Optional. Feature configuration to populate the feature flags.
    * @return value or {@code null} for none
@@ -462,6 +517,23 @@ public ContactCenter setPrivateComponents(java.util.List<java.lang.String> priva
     return this;
   }
 
+  /**
+   * Output only. Timestamp in UTC of when this resource is going to be hard-deleted.
+   * @return value or {@code null} for none
+   */
+  public String getPurgeTime() {
+    return purgeTime;
+  }
+
+  /**
+   * Output only. Timestamp in UTC of when this resource is going to be hard-deleted.
+   * @param purgeTime purgeTime or {@code null} for none
+   */
+  public ContactCenter setPurgeTime(String purgeTime) {
+    this.purgeTime = purgeTime;
+    return this;
+  }
+
   /**
    * Output only. UJET release version, unique for each new release.
    * @return value or {@code null} for none
diff --git a/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/com/google/api/services/contactcenteraiplatform/v1alpha1/model/GenerateShiftsRequest.java b/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/com/google/api/services/contactcenteraiplatform/v1alpha1/model/GenerateShiftsRequest.java
index a1df0df2094..71fd138ea4f 100644
--- a/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/com/google/api/services/contactcenteraiplatform/v1alpha1/model/GenerateShiftsRequest.java
+++ b/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/com/google/api/services/contactcenteraiplatform/v1alpha1/model/GenerateShiftsRequest.java
@@ -60,7 +60,7 @@ public final class GenerateShiftsRequest extends com.google.api.client.json.Gene
   private java.util.List<ShiftTemplate> shiftTemplates;
 
   /**
-   * Optional. Parameters for the solver.
+   * Required. Parameters for the solver.
    * The value may be {@code null}.
    */
   @com.google.api.client.util.Key
@@ -129,7 +129,7 @@ public GenerateShiftsRequest setShiftTemplates(java.util.List<ShiftTemplate> shi
   }
 
   /**
-   * Optional. Parameters for the solver.
+   * Required. Parameters for the solver.
    * @return value or {@code null} for none
    */
   public SolverConfig getSolverConfig() {
@@ -137,7 +137,7 @@ public SolverConfig getSolverConfig() {
   }
 
   /**
-   * Optional. Parameters for the solver.
+   * Required. Parameters for the solver.
    * @param solverConfig solverConfig or {@code null} for none
    */
   public GenerateShiftsRequest setSolverConfig(SolverConfig solverConfig) {
diff --git a/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/pom.xml b/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/pom.xml
index a28cfb03707..8eb649d3ced 100644
--- a/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/pom.xml
+++ b/clients/google-api-services-contactcenteraiplatform/v1alpha1/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-contactcenteraiplatform</artifactId>
-  <version>v1alpha1-rev20260108-2.0.0</version>
-  <name>Contact Center AI Platform API v1alpha1-rev20260108-2.0.0</name>
+  <version>v1alpha1-rev20260129-2.0.0</version>
+  <name>Contact Center AI Platform API v1alpha1-rev20260129-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-contactcenteraiplatform/v1alpha1/README.md b/clients/google-api-services-contactcenteraiplatform/v1alpha1/README.md
index a23c84c58f2..55a17c8b5de 100644
--- a/clients/google-api-services-contactcenteraiplatform/v1alpha1/README.md
+++ b/clients/google-api-services-contactcenteraiplatform/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-contactcenteraiplatform</artifactId>
-      <version>v1alpha1-rev20260108-2.0.0</version>
+      <version>v1alpha1-rev20260129-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-contactcenteraiplatform:v1alpha1-rev20260108-2.0.0'
+  implementation 'com.google.apis:google-api-services-contactcenteraiplatform:v1alpha1-rev20260129-2.0.0'
 }
 ```