diff --git a/src/Pubsub/AwsKinesis.php b/src/Pubsub/AwsKinesis.php
index ab35370a32..7391310e49 100644
--- a/src/Pubsub/AwsKinesis.php
+++ b/src/Pubsub/AwsKinesis.php
@@ -51,6 +51,15 @@ class AwsKinesis extends \Google\Model
    * The Kinesis consumer does not exist.
    */
   public const STATE_CONSUMER_NOT_FOUND = 'CONSUMER_NOT_FOUND';
+  /**
+   * Indicates an error state where the ingestion source cannot be processed.
+   * This occurs because there is no overlap between the regions allowed by the
+   * topic's `MessageStoragePolicy` and the regions permitted by the Regional
+   * Access Boundary (RAB) restrictions on the project's Pub/Sub service
+   * account. A common, allowed region is required to determine a valid
+   * ingestion region.
+   */
+  public const STATE_CONFLICTING_REGION_CONSTRAINTS = 'CONFLICTING_REGION_CONSTRAINTS';
   /**
    * Required. AWS role ARN to be used for Federated Identity authentication
    * with Kinesis. Check the Pub/Sub docs for how to set up this role and the
@@ -148,7 +157,8 @@ public function getGcpServiceAccount()
    * ingestion source.
    *
    * Accepted values: STATE_UNSPECIFIED, ACTIVE, KINESIS_PERMISSION_DENIED,
-   * PUBLISH_PERMISSION_DENIED, STREAM_NOT_FOUND, CONSUMER_NOT_FOUND
+   * PUBLISH_PERMISSION_DENIED, STREAM_NOT_FOUND, CONSUMER_NOT_FOUND,
+   * CONFLICTING_REGION_CONSTRAINTS
    *
    * @param self::STATE_* $state
    */
diff --git a/src/Pubsub/AwsMsk.php b/src/Pubsub/AwsMsk.php
index 1419762646..6a52662115 100644
--- a/src/Pubsub/AwsMsk.php
+++ b/src/Pubsub/AwsMsk.php
@@ -43,6 +43,15 @@ class AwsMsk extends \Google\Model
    * The provided topic wasn't found.
    */
   public const STATE_TOPIC_NOT_FOUND = 'TOPIC_NOT_FOUND';
+  /**
+   * Indicates an error state where the ingestion source cannot be processed.
+   * This occurs because there is no overlap between the regions allowed by the
+   * topic's `MessageStoragePolicy` and the regions permitted by the Regional
+   * Access Boundary (RAB) restrictions on the project's Pub/Sub service
+   * account. A common, allowed region is required to determine a valid
+   * ingestion region.
+   */
+  public const STATE_CONFLICTING_REGION_CONSTRAINTS = 'CONFLICTING_REGION_CONSTRAINTS';
   /**
    * Required. AWS role ARN to be used for Federated Identity authentication
    * with Amazon MSK. Check the Pub/Sub docs for how to set up this role and the
@@ -141,7 +150,8 @@ public function getGcpServiceAccount()
    * MSK ingestion source.
    *
    * Accepted values: STATE_UNSPECIFIED, ACTIVE, MSK_PERMISSION_DENIED,
-   * PUBLISH_PERMISSION_DENIED, CLUSTER_NOT_FOUND, TOPIC_NOT_FOUND
+   * PUBLISH_PERMISSION_DENIED, CLUSTER_NOT_FOUND, TOPIC_NOT_FOUND,
+   * CONFLICTING_REGION_CONSTRAINTS
    *
    * @param self::STATE_* $state
    */
diff --git a/src/Pubsub/AzureEventHubs.php b/src/Pubsub/AzureEventHubs.php
index a3504fc19f..cb3b5b191f 100644
--- a/src/Pubsub/AzureEventHubs.php
+++ b/src/Pubsub/AzureEventHubs.php
@@ -53,6 +53,15 @@ class AzureEventHubs extends \Google\Model
    * The provided Event Hubs resource group couldn't be found.
    */
   public const STATE_RESOURCE_GROUP_NOT_FOUND = 'RESOURCE_GROUP_NOT_FOUND';
+  /**
+   * Indicates an error state where the ingestion source cannot be processed.
+   * This occurs because there is no overlap between the regions allowed by the
+   * topic's `MessageStoragePolicy` and the regions permitted by the Regional
+   * Access Boundary (RAB) restrictions on the project's Pub/Sub service
+   * account. A common, allowed region is required to determine a valid
+   * ingestion region.
+   */
+  public const STATE_CONFLICTING_REGION_CONSTRAINTS = 'CONFLICTING_REGION_CONSTRAINTS';
   /**
    * Optional. The client id of the Azure application that is being used to
    * authenticate Pub/Sub.
@@ -194,7 +203,8 @@ public function getResourceGroup()
    *
    * Accepted values: STATE_UNSPECIFIED, ACTIVE, EVENT_HUBS_PERMISSION_DENIED,
    * PUBLISH_PERMISSION_DENIED, NAMESPACE_NOT_FOUND, EVENT_HUB_NOT_FOUND,
-   * SUBSCRIPTION_NOT_FOUND, RESOURCE_GROUP_NOT_FOUND
+   * SUBSCRIPTION_NOT_FOUND, RESOURCE_GROUP_NOT_FOUND,
+   * CONFLICTING_REGION_CONSTRAINTS
    *
    * @param self::STATE_* $state
    */
diff --git a/src/Pubsub/BigtableConfig.php b/src/Pubsub/BigtableConfig.php
new file mode 100644
index 0000000000..b404fd3e24
--- /dev/null
+++ b/src/Pubsub/BigtableConfig.php
@@ -0,0 +1,212 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+namespace Google\Service\Pubsub;
+
+class BigtableConfig extends \Google\Model
+{
+  /**
+   * Default value. This value is unused.
+   */
+  public const STATE_STATE_UNSPECIFIED = 'STATE_UNSPECIFIED';
+  /**
+   * The subscription can actively send messages to Bigtable.
+   */
+  public const STATE_ACTIVE = 'ACTIVE';
+  /**
+   * Cannot write to Bigtable because the instance, table, or app profile does
+   * not exist.
+   */
+  public const STATE_NOT_FOUND = 'NOT_FOUND';
+  /**
+   * Cannot write to Bigtable because the app profile is not configured for
+   * single-cluster routing.
+   */
+  public const STATE_APP_PROFILE_MISCONFIGURED = 'APP_PROFILE_MISCONFIGURED';
+  /**
+   * Cannot write to Bigtable because of permission denied errors. This can
+   * happen if: - The Pub/Sub service agent has not been granted the
+   * [appropriate Bigtable IAM permission bigtable.tables.mutateRows]({$universe
+   * .dns_names.final_documentation_domain}/bigtable/docs/access-
+   * control#permissions) - The bigtable.googleapis.com API is not enabled for
+   * the project
+   * ([instructions]({$universe.dns_names.final_documentation_domain}/service-
+   * usage/docs/enable-disable))
+   */
+  public const STATE_PERMISSION_DENIED = 'PERMISSION_DENIED';
+  /**
+   * Cannot write to Bigtable because of a missing column family ("data") or if
+   * there is no structured row key for the subscription name + message ID.
+   */
+  public const STATE_SCHEMA_MISMATCH = 'SCHEMA_MISMATCH';
+  /**
+   * Cannot write to the destination because enforce_in_transit is set to true
+   * and the destination locations are not in the allowed regions.
+   */
+  public const STATE_IN_TRANSIT_LOCATION_RESTRICTION = 'IN_TRANSIT_LOCATION_RESTRICTION';
+  /**
+   * Cannot write to Bigtable because the table is not in the same location as
+   * where Vertex AI models used in `message_transform`s are deployed.
+   */
+  public const STATE_VERTEX_AI_LOCATION_RESTRICTION = 'VERTEX_AI_LOCATION_RESTRICTION';
+  /**
+   * Optional. The app profile to use for the Bigtable writes. If not specified,
+   * the "default" application profile will be used. The app profile must use
+   * single-cluster routing.
+   *
+   * @var string
+   */
+  public $appProfileId;
+  /**
+   * Optional. The service account to use to write to Bigtable. The subscription
+   * creator or updater that specifies this field must have
+   * `iam.serviceAccounts.actAs` permission on the service account. If not
+   * specified, the Pub/Sub [service
+   * agent](https://cloud.google.com/iam/docs/service-agents),
+   * service-{project_number}@gcp-sa-pubsub.iam.gserviceaccount.com, is used.
+   *
+   * @var string
+   */
+  public $serviceAccountEmail;
+  /**
+   * Output only. An output-only field that indicates whether or not the
+   * subscription can receive messages.
+   *
+   * @var string
+   */
+  public $state;
+  /**
+   * Optional. The unique name of the table to write messages to. Values are of
+   * the form `projects//instances//tables/`.
+   *
+   * @var string
+   */
+  public $table;
+  /**
+   * Optional. When true, write the subscription name, message_id, publish_time,
+   * attributes, and ordering_key to additional columns in the table under the
+   * pubsub_metadata column family. The subscription name, message_id, and
+   * publish_time fields are put in their own columns while all other message
+   * properties (other than data) are written to a JSON object in the attributes
+   * column.
+   *
+   * @var bool
+   */
+  public $writeMetadata;
+
+  /**
+   * Optional. The app profile to use for the Bigtable writes. If not specified,
+   * the "default" application profile will be used. The app profile must use
+   * single-cluster routing.
+   *
+   * @param string $appProfileId
+   */
+  public function setAppProfileId($appProfileId)
+  {
+    $this->appProfileId = $appProfileId;
+  }
+  /**
+   * @return string
+   */
+  public function getAppProfileId()
+  {
+    return $this->appProfileId;
+  }
+  /**
+   * Optional. The service account to use to write to Bigtable. The subscription
+   * creator or updater that specifies this field must have
+   * `iam.serviceAccounts.actAs` permission on the service account. If not
+   * specified, the Pub/Sub [service
+   * agent](https://cloud.google.com/iam/docs/service-agents),
+   * service-{project_number}@gcp-sa-pubsub.iam.gserviceaccount.com, is used.
+   *
+   * @param string $serviceAccountEmail
+   */
+  public function setServiceAccountEmail($serviceAccountEmail)
+  {
+    $this->serviceAccountEmail = $serviceAccountEmail;
+  }
+  /**
+   * @return string
+   */
+  public function getServiceAccountEmail()
+  {
+    return $this->serviceAccountEmail;
+  }
+  /**
+   * Output only. An output-only field that indicates whether or not the
+   * subscription can receive messages.
+   *
+   * Accepted values: STATE_UNSPECIFIED, ACTIVE, NOT_FOUND,
+   * APP_PROFILE_MISCONFIGURED, PERMISSION_DENIED, SCHEMA_MISMATCH,
+   * IN_TRANSIT_LOCATION_RESTRICTION, VERTEX_AI_LOCATION_RESTRICTION
+   *
+   * @param self::STATE_* $state
+   */
+  public function setState($state)
+  {
+    $this->state = $state;
+  }
+  /**
+   * @return self::STATE_*
+   */
+  public function getState()
+  {
+    return $this->state;
+  }
+  /**
+   * Optional. The unique name of the table to write messages to. Values are of
+   * the form `projects//instances//tables/`.
+   *
+   * @param string $table
+   */
+  public function setTable($table)
+  {
+    $this->table = $table;
+  }
+  /**
+   * @return string
+   */
+  public function getTable()
+  {
+    return $this->table;
+  }
+  /**
+   * Optional. When true, write the subscription name, message_id, publish_time,
+   * attributes, and ordering_key to additional columns in the table under the
+   * pubsub_metadata column family. The subscription name, message_id, and
+   * publish_time fields are put in their own columns while all other message
+   * properties (other than data) are written to a JSON object in the attributes
+   * column.
+   *
+   * @param bool $writeMetadata
+   */
+  public function setWriteMetadata($writeMetadata)
+  {
+    $this->writeMetadata = $writeMetadata;
+  }
+  /**
+   * @return bool
+   */
+  public function getWriteMetadata()
+  {
+    return $this->writeMetadata;
+  }
+}
+
+// Adding a class alias for backwards compatibility with the previous class name.
+class_alias(BigtableConfig::class, 'Google_Service_Pubsub_BigtableConfig');
diff --git a/src/Pubsub/CloudStorage.php b/src/Pubsub/CloudStorage.php
index f30aeb54e8..6de47525e9 100644
--- a/src/Pubsub/CloudStorage.php
+++ b/src/Pubsub/CloudStorage.php
@@ -51,6 +51,15 @@ class CloudStorage extends \Google\Model
    * The Cloud Storage bucket has too many objects, ingestion will be paused.
    */
   public const STATE_TOO_MANY_OBJECTS = 'TOO_MANY_OBJECTS';
+  /**
+   * Indicates an error state where the ingestion source cannot be processed.
+   * This occurs because there is no overlap between the regions allowed by the
+   * topic's `MessageStoragePolicy` and the regions permitted by the Regional
+   * Access Boundary (RAB) restrictions on the project's Pub/Sub service
+   * account. A common, allowed region is required to determine a valid
+   * ingestion region.
+   */
+  public const STATE_CONFLICTING_REGION_CONSTRAINTS = 'CONFLICTING_REGION_CONSTRAINTS';
   protected $avroFormatType = AvroFormat::class;
   protected $avroFormatDataType = '';
   /**
@@ -182,7 +191,7 @@ public function getPubsubAvroFormat()
    *
    * Accepted values: STATE_UNSPECIFIED, ACTIVE,
    * CLOUD_STORAGE_PERMISSION_DENIED, PUBLISH_PERMISSION_DENIED,
-   * BUCKET_NOT_FOUND, TOO_MANY_OBJECTS
+   * BUCKET_NOT_FOUND, TOO_MANY_OBJECTS, CONFLICTING_REGION_CONSTRAINTS
    *
    * @param self::STATE_* $state
    */
diff --git a/src/Pubsub/ConfluentCloud.php b/src/Pubsub/ConfluentCloud.php
index f92fd549d9..28d5e3e73b 100644
--- a/src/Pubsub/ConfluentCloud.php
+++ b/src/Pubsub/ConfluentCloud.php
@@ -47,6 +47,15 @@ class ConfluentCloud extends \Google\Model
    * The provided topic wasn't found.
    */
   public const STATE_TOPIC_NOT_FOUND = 'TOPIC_NOT_FOUND';
+  /**
+   * Indicates an error state where the ingestion source cannot be processed.
+   * This occurs because there is no overlap between the regions allowed by the
+   * topic's `MessageStoragePolicy` and the regions permitted by the Regional
+   * Access Boundary (RAB) restrictions on the project's Pub/Sub service
+   * account. A common, allowed region is required to determine a valid
+   * ingestion region.
+   */
+  public const STATE_CONFLICTING_REGION_CONSTRAINTS = 'CONFLICTING_REGION_CONSTRAINTS';
   /**
    * Required. The address of the bootstrap server. The format is url:port.
    *
@@ -166,7 +175,8 @@ public function getIdentityPoolId()
    *
    * Accepted values: STATE_UNSPECIFIED, ACTIVE,
    * CONFLUENT_CLOUD_PERMISSION_DENIED, PUBLISH_PERMISSION_DENIED,
-   * UNREACHABLE_BOOTSTRAP_SERVER, CLUSTER_NOT_FOUND, TOPIC_NOT_FOUND
+   * UNREACHABLE_BOOTSTRAP_SERVER, CLUSTER_NOT_FOUND, TOPIC_NOT_FOUND,
+   * CONFLICTING_REGION_CONSTRAINTS
    *
    * @param self::STATE_* $state
    */
diff --git a/src/Pubsub/Subscription.php b/src/Pubsub/Subscription.php
index e4afed92c7..b47f521c01 100644
--- a/src/Pubsub/Subscription.php
+++ b/src/Pubsub/Subscription.php
@@ -58,6 +58,8 @@ class Subscription extends \Google\Collection
   protected $analyticsHubSubscriptionInfoDataType = '';
   protected $bigqueryConfigType = BigQueryConfig::class;
   protected $bigqueryConfigDataType = '';
+  protected $bigtableConfigType = BigtableConfig::class;
+  protected $bigtableConfigDataType = '';
   protected $cloudStorageConfigType = CloudStorageConfig::class;
   protected $cloudStorageConfigDataType = '';
   protected $deadLetterPolicyType = DeadLetterPolicy::class;
@@ -251,6 +253,23 @@ public function getBigqueryConfig()
   {
     return $this->bigqueryConfig;
   }
+  /**
+   * Optional. If delivery to Bigtable is used with this subscription, this
+   * field is used to configure it.
+   *
+   * @param BigtableConfig $bigtableConfig
+   */
+  public function setBigtableConfig(BigtableConfig $bigtableConfig)
+  {
+    $this->bigtableConfig = $bigtableConfig;
+  }
+  /**
+   * @return BigtableConfig
+   */
+  public function getBigtableConfig()
+  {
+    return $this->bigtableConfig;
+  }
   /**
    * Optional. If delivery to Google Cloud Storage is used with this
    * subscription, this field is used to configure it.