diff --git a/PubSub/metadata/V1/Pubsub.php b/PubSub/metadata/V1/Pubsub.php
index f3397d12f3af..493b7610f5b5 100644
Binary files a/PubSub/metadata/V1/Pubsub.php and b/PubSub/metadata/V1/Pubsub.php differ
diff --git a/PubSub/src/V1/CloudStorageConfig/AvroConfig.php b/PubSub/src/V1/CloudStorageConfig/AvroConfig.php
index 9b410cfa6ed6..a4da0ac163ed 100644
--- a/PubSub/src/V1/CloudStorageConfig/AvroConfig.php
+++ b/PubSub/src/V1/CloudStorageConfig/AvroConfig.php
@@ -27,6 +27,13 @@ class AvroConfig extends \Google\Protobuf\Internal\Message
      * Generated from protobuf field <code>bool write_metadata = 1 [(.google.api.field_behavior) = OPTIONAL];</code>
      */
     private $write_metadata = false;
+    /**
+     * Optional. When true, the output Cloud Storage file will be serialized
+     * using the topic schema, if it exists.
+     *
+     * Generated from protobuf field <code>bool use_topic_schema = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    private $use_topic_schema = false;
 
     /**
      * Constructor.
@@ -41,6 +48,9 @@ class AvroConfig extends \Google\Protobuf\Internal\Message
      *           put in their own fields while all other message properties other than
      *           data (for example, an ordering_key, if present) are added as entries in
      *           the attributes map.
+     *     @type bool $use_topic_schema
+     *           Optional. When true, the output Cloud Storage file will be serialized
+     *           using the topic schema, if it exists.
      * }
      */
     public function __construct($data = NULL) {
@@ -84,6 +94,34 @@ public function setWriteMetadata($var)
         return $this;
     }
 
+    /**
+     * Optional. When true, the output Cloud Storage file will be serialized
+     * using the topic schema, if it exists.
+     *
+     * Generated from protobuf field <code>bool use_topic_schema = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return bool
+     */
+    public function getUseTopicSchema()
+    {
+        return $this->use_topic_schema;
+    }
+
+    /**
+     * Optional. When true, the output Cloud Storage file will be serialized
+     * using the topic schema, if it exists.
+     *
+     * Generated from protobuf field <code>bool use_topic_schema = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setUseTopicSchema($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->use_topic_schema = $var;
+
+        return $this;
+    }
+
 }
 
 
diff --git a/PubSub/src/V1/CloudStorageConfig/State.php b/PubSub/src/V1/CloudStorageConfig/State.php
index 94318fdc0e20..a25e92b39016 100644
--- a/PubSub/src/V1/CloudStorageConfig/State.php
+++ b/PubSub/src/V1/CloudStorageConfig/State.php
@@ -45,6 +45,13 @@ class State
      * Generated from protobuf enum <code>IN_TRANSIT_LOCATION_RESTRICTION = 4;</code>
      */
     const IN_TRANSIT_LOCATION_RESTRICTION = 4;
+    /**
+     * Cannot write to the Cloud Storage bucket due to an incompatibility
+     * between the topic schema and subscription settings.
+     *
+     * Generated from protobuf enum <code>SCHEMA_MISMATCH = 5;</code>
+     */
+    const SCHEMA_MISMATCH = 5;
 
     private static $valueToName = [
         self::STATE_UNSPECIFIED => 'STATE_UNSPECIFIED',
@@ -52,6 +59,7 @@ class State
         self::PERMISSION_DENIED => 'PERMISSION_DENIED',
         self::NOT_FOUND => 'NOT_FOUND',
         self::IN_TRANSIT_LOCATION_RESTRICTION => 'IN_TRANSIT_LOCATION_RESTRICTION',
+        self::SCHEMA_MISMATCH => 'SCHEMA_MISMATCH',
     ];
 
     public static function name($value)