diff --git a/Spanner/metadata/Admin/Database/V1/Backup.php b/Spanner/metadata/Admin/Database/V1/Backup.php
index 925eac7804bb..b610f628c771 100644
Binary files a/Spanner/metadata/Admin/Database/V1/Backup.php and b/Spanner/metadata/Admin/Database/V1/Backup.php differ
diff --git a/Spanner/metadata/Admin/Database/V1/Common.php b/Spanner/metadata/Admin/Database/V1/Common.php
index b7f5b1b667b9..121b65ff92ab 100644
Binary files a/Spanner/metadata/Admin/Database/V1/Common.php and b/Spanner/metadata/Admin/Database/V1/Common.php differ
diff --git a/Spanner/metadata/Admin/Database/V1/SpannerDatabaseAdmin.php b/Spanner/metadata/Admin/Database/V1/SpannerDatabaseAdmin.php
index 6f7e316121a7..b1a561e387ec 100644
Binary files a/Spanner/metadata/Admin/Database/V1/SpannerDatabaseAdmin.php and b/Spanner/metadata/Admin/Database/V1/SpannerDatabaseAdmin.php differ
diff --git a/Spanner/src/Admin/Database/V1/Backup.php b/Spanner/src/Admin/Database/V1/Backup.php
index e204aa6759d0..d1826bc0e8a5 100644
--- a/Spanner/src/Admin/Database/V1/Backup.php
+++ b/Spanner/src/Admin/Database/V1/Backup.php
@@ -16,10 +16,10 @@
 class Backup extends \Google\Protobuf\Internal\Message
 {
     /**
-     * Required for the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] operation.
-     * Name of the database from which this backup was
-     * created. This needs to be in the same instance as the backup.
-     * Values are of the form
+     * Required for the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * operation. Name of the database from which this backup was created. This
+     * needs to be in the same instance as the backup. Values are of the form
      * `projects/<project>/instances/<instance>/databases/<database>`.
      *
      * Generated from protobuf field <code>string database = 2 [(.google.api.resource_reference) = {</code>
@@ -35,7 +35,8 @@ class Backup extends \Google\Protobuf\Internal\Message
      */
     private $version_time = null;
     /**
-     * Required for the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * Required for the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
      * operation. The expiration time of the backup, with microseconds
      * granularity that must be at least 6 hours and at most 366 days
      * from the time the CreateBackup request is processed. Once the `expire_time`
@@ -46,8 +47,11 @@ class Backup extends \Google\Protobuf\Internal\Message
      */
     private $expire_time = null;
     /**
-     * Output only for the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] operation.
-     * Required for the [UpdateBackup][google.spanner.admin.database.v1.DatabaseAdmin.UpdateBackup] operation.
+     * Output only for the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * operation. Required for the
+     * [UpdateBackup][google.spanner.admin.database.v1.DatabaseAdmin.UpdateBackup]
+     * operation.
      * A globally unique identifier for the backup which cannot be
      * changed. Values are of the form
      * `projects/<project>/instances/<instance>/backups/[a-z][a-z0-9_\-]*[a-z0-9]`
@@ -62,7 +66,8 @@ class Backup extends \Google\Protobuf\Internal\Message
      */
     private $name = '';
     /**
-     * Output only. The time the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * Output only. The time the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
      * request is received. If the request does not specify `version_time`, the
      * `version_time` of the backup will be equivalent to the `create_time`.
      *
@@ -99,6 +104,17 @@ class Backup extends \Google\Protobuf\Internal\Message
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.EncryptionInfo encryption_info = 8 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
      */
     private $encryption_info = null;
+    /**
+     * Output only. The encryption information for the backup, whether it is
+     * protected by one or more KMS keys. The information includes all Cloud
+     * KMS key versions used to encrypt the backup. The `encryption_status' field
+     * inside of each `EncryptionInfo` is not populated. At least one of the key
+     * versions must be available for the backup to be restored. If a key version
+     * is revoked in the middle of a restore, the restore behavior is undefined.
+     *
+     * Generated from protobuf field <code>repeated .google.spanner.admin.database.v1.EncryptionInfo encryption_information = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    private $encryption_information;
     /**
      * Output only. The database dialect information for the backup.
      *
@@ -135,10 +151,10 @@ class Backup extends \Google\Protobuf\Internal\Message
      *     Optional. Data for populating the Message object.
      *
      *     @type string $database
-     *           Required for the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] operation.
-     *           Name of the database from which this backup was
-     *           created. This needs to be in the same instance as the backup.
-     *           Values are of the form
+     *           Required for the
+     *           [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     *           operation. Name of the database from which this backup was created. This
+     *           needs to be in the same instance as the backup. Values are of the form
      *           `projects/<project>/instances/<instance>/databases/<database>`.
      *     @type \Google\Protobuf\Timestamp $version_time
      *           The backup will contain an externally consistent copy of the database at
@@ -146,15 +162,19 @@ class Backup extends \Google\Protobuf\Internal\Message
      *           specified, the system will set `version_time` to the `create_time` of the
      *           backup.
      *     @type \Google\Protobuf\Timestamp $expire_time
-     *           Required for the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     *           Required for the
+     *           [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
      *           operation. The expiration time of the backup, with microseconds
      *           granularity that must be at least 6 hours and at most 366 days
      *           from the time the CreateBackup request is processed. Once the `expire_time`
      *           has passed, the backup is eligible to be automatically deleted by Cloud
      *           Spanner to free the resources used by the backup.
      *     @type string $name
-     *           Output only for the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] operation.
-     *           Required for the [UpdateBackup][google.spanner.admin.database.v1.DatabaseAdmin.UpdateBackup] operation.
+     *           Output only for the
+     *           [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     *           operation. Required for the
+     *           [UpdateBackup][google.spanner.admin.database.v1.DatabaseAdmin.UpdateBackup]
+     *           operation.
      *           A globally unique identifier for the backup which cannot be
      *           changed. Values are of the form
      *           `projects/<project>/instances/<instance>/backups/[a-z][a-z0-9_\-]*[a-z0-9]`
@@ -165,7 +185,8 @@ class Backup extends \Google\Protobuf\Internal\Message
      *           by the prefix of the backup name of the form
      *           `projects/<project>/instances/<instance>`.
      *     @type \Google\Protobuf\Timestamp $create_time
-     *           Output only. The time the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     *           Output only. The time the
+     *           [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
      *           request is received. If the request does not specify `version_time`, the
      *           `version_time` of the backup will be equivalent to the `create_time`.
      *     @type int|string $size_bytes
@@ -182,6 +203,13 @@ class Backup extends \Google\Protobuf\Internal\Message
      *           to the backup is removed.
      *     @type \Google\Cloud\Spanner\Admin\Database\V1\EncryptionInfo $encryption_info
      *           Output only. The encryption information for the backup.
+     *     @type array<\Google\Cloud\Spanner\Admin\Database\V1\EncryptionInfo>|\Google\Protobuf\Internal\RepeatedField $encryption_information
+     *           Output only. The encryption information for the backup, whether it is
+     *           protected by one or more KMS keys. The information includes all Cloud
+     *           KMS key versions used to encrypt the backup. The `encryption_status' field
+     *           inside of each `EncryptionInfo` is not populated. At least one of the key
+     *           versions must be available for the backup to be restored. If a key version
+     *           is revoked in the middle of a restore, the restore behavior is undefined.
      *     @type int $database_dialect
      *           Output only. The database dialect information for the backup.
      *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $referencing_backups
@@ -206,10 +234,10 @@ public function __construct($data = NULL) {
     }
 
     /**
-     * Required for the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] operation.
-     * Name of the database from which this backup was
-     * created. This needs to be in the same instance as the backup.
-     * Values are of the form
+     * Required for the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * operation. Name of the database from which this backup was created. This
+     * needs to be in the same instance as the backup. Values are of the form
      * `projects/<project>/instances/<instance>/databases/<database>`.
      *
      * Generated from protobuf field <code>string database = 2 [(.google.api.resource_reference) = {</code>
@@ -221,10 +249,10 @@ public function getDatabase()
     }
 
     /**
-     * Required for the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] operation.
-     * Name of the database from which this backup was
-     * created. This needs to be in the same instance as the backup.
-     * Values are of the form
+     * Required for the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * operation. Name of the database from which this backup was created. This
+     * needs to be in the same instance as the backup. Values are of the form
      * `projects/<project>/instances/<instance>/databases/<database>`.
      *
      * Generated from protobuf field <code>string database = 2 [(.google.api.resource_reference) = {</code>
@@ -282,7 +310,8 @@ public function setVersionTime($var)
     }
 
     /**
-     * Required for the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * Required for the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
      * operation. The expiration time of the backup, with microseconds
      * granularity that must be at least 6 hours and at most 366 days
      * from the time the CreateBackup request is processed. Once the `expire_time`
@@ -308,7 +337,8 @@ public function clearExpireTime()
     }
 
     /**
-     * Required for the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * Required for the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
      * operation. The expiration time of the backup, with microseconds
      * granularity that must be at least 6 hours and at most 366 days
      * from the time the CreateBackup request is processed. Once the `expire_time`
@@ -328,8 +358,11 @@ public function setExpireTime($var)
     }
 
     /**
-     * Output only for the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] operation.
-     * Required for the [UpdateBackup][google.spanner.admin.database.v1.DatabaseAdmin.UpdateBackup] operation.
+     * Output only for the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * operation. Required for the
+     * [UpdateBackup][google.spanner.admin.database.v1.DatabaseAdmin.UpdateBackup]
+     * operation.
      * A globally unique identifier for the backup which cannot be
      * changed. Values are of the form
      * `projects/<project>/instances/<instance>/backups/[a-z][a-z0-9_\-]*[a-z0-9]`
@@ -349,8 +382,11 @@ public function getName()
     }
 
     /**
-     * Output only for the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] operation.
-     * Required for the [UpdateBackup][google.spanner.admin.database.v1.DatabaseAdmin.UpdateBackup] operation.
+     * Output only for the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * operation. Required for the
+     * [UpdateBackup][google.spanner.admin.database.v1.DatabaseAdmin.UpdateBackup]
+     * operation.
      * A globally unique identifier for the backup which cannot be
      * changed. Values are of the form
      * `projects/<project>/instances/<instance>/backups/[a-z][a-z0-9_\-]*[a-z0-9]`
@@ -374,7 +410,8 @@ public function setName($var)
     }
 
     /**
-     * Output only. The time the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * Output only. The time the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
      * request is received. If the request does not specify `version_time`, the
      * `version_time` of the backup will be equivalent to the `create_time`.
      *
@@ -397,7 +434,8 @@ public function clearCreateTime()
     }
 
     /**
-     * Output only. The time the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * Output only. The time the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
      * request is received. If the request does not specify `version_time`, the
      * `version_time` of the backup will be equivalent to the `create_time`.
      *
@@ -539,6 +577,42 @@ public function setEncryptionInfo($var)
         return $this;
     }
 
+    /**
+     * Output only. The encryption information for the backup, whether it is
+     * protected by one or more KMS keys. The information includes all Cloud
+     * KMS key versions used to encrypt the backup. The `encryption_status' field
+     * inside of each `EncryptionInfo` is not populated. At least one of the key
+     * versions must be available for the backup to be restored. If a key version
+     * is revoked in the middle of a restore, the restore behavior is undefined.
+     *
+     * Generated from protobuf field <code>repeated .google.spanner.admin.database.v1.EncryptionInfo encryption_information = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getEncryptionInformation()
+    {
+        return $this->encryption_information;
+    }
+
+    /**
+     * Output only. The encryption information for the backup, whether it is
+     * protected by one or more KMS keys. The information includes all Cloud
+     * KMS key versions used to encrypt the backup. The `encryption_status' field
+     * inside of each `EncryptionInfo` is not populated. At least one of the key
+     * versions must be available for the backup to be restored. If a key version
+     * is revoked in the middle of a restore, the restore behavior is undefined.
+     *
+     * Generated from protobuf field <code>repeated .google.spanner.admin.database.v1.EncryptionInfo encryption_information = 13 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param array<\Google\Cloud\Spanner\Admin\Database\V1\EncryptionInfo>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setEncryptionInformation($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Spanner\Admin\Database\V1\EncryptionInfo::class);
+        $this->encryption_information = $arr;
+
+        return $this;
+    }
+
     /**
      * Output only. The database dialect information for the backup.
      *
diff --git a/Spanner/src/Admin/Database/V1/BackupInfo.php b/Spanner/src/Admin/Database/V1/BackupInfo.php
index 23d659f3e921..daaf059905a8 100644
--- a/Spanner/src/Admin/Database/V1/BackupInfo.php
+++ b/Spanner/src/Admin/Database/V1/BackupInfo.php
@@ -24,16 +24,17 @@ class BackupInfo extends \Google\Protobuf\Internal\Message
     /**
      * The backup contains an externally consistent copy of `source_database` at
      * the timestamp specified by `version_time`. If the
-     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] request did not specify
-     * `version_time`, the `version_time` of the backup is equivalent to the
-     * `create_time`.
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * request did not specify `version_time`, the `version_time` of the backup is
+     * equivalent to the `create_time`.
      *
      * Generated from protobuf field <code>.google.protobuf.Timestamp version_time = 4;</code>
      */
     private $version_time = null;
     /**
-     * The time the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] request was
-     * received.
+     * The time the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * request was received.
      *
      * Generated from protobuf field <code>.google.protobuf.Timestamp create_time = 2;</code>
      */
@@ -56,12 +57,13 @@ class BackupInfo extends \Google\Protobuf\Internal\Message
      *     @type \Google\Protobuf\Timestamp $version_time
      *           The backup contains an externally consistent copy of `source_database` at
      *           the timestamp specified by `version_time`. If the
-     *           [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] request did not specify
-     *           `version_time`, the `version_time` of the backup is equivalent to the
-     *           `create_time`.
+     *           [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     *           request did not specify `version_time`, the `version_time` of the backup is
+     *           equivalent to the `create_time`.
      *     @type \Google\Protobuf\Timestamp $create_time
-     *           The time the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] request was
-     *           received.
+     *           The time the
+     *           [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     *           request was received.
      *     @type string $source_database
      *           Name of the database the backup was created from.
      * }
@@ -100,9 +102,9 @@ public function setBackup($var)
     /**
      * The backup contains an externally consistent copy of `source_database` at
      * the timestamp specified by `version_time`. If the
-     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] request did not specify
-     * `version_time`, the `version_time` of the backup is equivalent to the
-     * `create_time`.
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * request did not specify `version_time`, the `version_time` of the backup is
+     * equivalent to the `create_time`.
      *
      * Generated from protobuf field <code>.google.protobuf.Timestamp version_time = 4;</code>
      * @return \Google\Protobuf\Timestamp|null
@@ -125,9 +127,9 @@ public function clearVersionTime()
     /**
      * The backup contains an externally consistent copy of `source_database` at
      * the timestamp specified by `version_time`. If the
-     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] request did not specify
-     * `version_time`, the `version_time` of the backup is equivalent to the
-     * `create_time`.
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * request did not specify `version_time`, the `version_time` of the backup is
+     * equivalent to the `create_time`.
      *
      * Generated from protobuf field <code>.google.protobuf.Timestamp version_time = 4;</code>
      * @param \Google\Protobuf\Timestamp $var
@@ -142,8 +144,9 @@ public function setVersionTime($var)
     }
 
     /**
-     * The time the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] request was
-     * received.
+     * The time the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * request was received.
      *
      * Generated from protobuf field <code>.google.protobuf.Timestamp create_time = 2;</code>
      * @return \Google\Protobuf\Timestamp|null
@@ -164,8 +167,9 @@ public function clearCreateTime()
     }
 
     /**
-     * The time the [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] request was
-     * received.
+     * The time the
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * request was received.
      *
      * Generated from protobuf field <code>.google.protobuf.Timestamp create_time = 2;</code>
      * @param \Google\Protobuf\Timestamp $var
diff --git a/Spanner/src/Admin/Database/V1/Client/DatabaseAdminClient.php b/Spanner/src/Admin/Database/V1/Client/DatabaseAdminClient.php
index 46665d9fa572..157c2df243ab 100644
--- a/Spanner/src/Admin/Database/V1/Client/DatabaseAdminClient.php
+++ b/Spanner/src/Admin/Database/V1/Client/DatabaseAdminClient.php
@@ -77,7 +77,7 @@
  * The Cloud Spanner Database Admin API can be used to:
  * * create, drop, and list databases
  * * update the schema of pre-existing databases
- * * create, delete and list backups for a database
+ * * create, delete, copy and list backups for a database
  * * restore a database from an existing backup
  *
  * This class provides the ability to make remote calls to the backing service through method
@@ -403,9 +403,10 @@ public function __call($method, $args)
      * The [metadata][google.longrunning.Operation.metadata] field type is
      * [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata].
      * The [response][google.longrunning.Operation.response] field type is
-     * [Backup][google.spanner.admin.database.v1.Backup], if successful. Cancelling the returned operation will stop the
-     * copying and delete the backup.
-     * Concurrent CopyBackup requests can run on the same source backup.
+     * [Backup][google.spanner.admin.database.v1.Backup], if successful.
+     * Cancelling the returned operation will stop the copying and delete the
+     * destination backup. Concurrent CopyBackup requests can run on the same
+     * source backup.
      *
      * The async variant is {@see DatabaseAdminClient::copyBackupAsync()} .
      *
@@ -437,12 +438,12 @@ public function copyBackup(CopyBackupRequest $request, array $callOptions = []):
      * `projects/<project>/instances/<instance>/backups/<backup>/operations/<operation_id>`
      * and can be used to track creation of the backup. The
      * [metadata][google.longrunning.Operation.metadata] field type is
-     * [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata]. The
-     * [response][google.longrunning.Operation.response] field type is
-     * [Backup][google.spanner.admin.database.v1.Backup], if successful. Cancelling the returned operation will stop the
-     * creation and delete the backup.
-     * There can be only one pending backup creation per database. Backup creation
-     * of different databases can run concurrently.
+     * [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
+     * The [response][google.longrunning.Operation.response] field type is
+     * [Backup][google.spanner.admin.database.v1.Backup], if successful.
+     * Cancelling the returned operation will stop the creation and delete the
+     * backup. There can be only one pending backup creation per database. Backup
+     * creation of different databases can run concurrently.
      *
      * The async variant is {@see DatabaseAdminClient::createBackupAsync()} .
      *
@@ -473,8 +474,8 @@ public function createBackup(CreateBackupRequest $request, array $callOptions =
      * have a name of the format `<database_name>/operations/<operation_id>` and
      * can be used to track preparation of the database. The
      * [metadata][google.longrunning.Operation.metadata] field type is
-     * [CreateDatabaseMetadata][google.spanner.admin.database.v1.CreateDatabaseMetadata]. The
-     * [response][google.longrunning.Operation.response] field type is
+     * [CreateDatabaseMetadata][google.spanner.admin.database.v1.CreateDatabaseMetadata].
+     * The [response][google.longrunning.Operation.response] field type is
      * [Database][google.spanner.admin.database.v1.Database], if successful.
      *
      * The async variant is {@see DatabaseAdminClient::createDatabaseAsync()} .
@@ -501,7 +502,8 @@ public function createDatabase(CreateDatabaseRequest $request, array $callOption
     }
 
     /**
-     * Deletes a pending or completed [Backup][google.spanner.admin.database.v1.Backup].
+     * Deletes a pending or completed
+     * [Backup][google.spanner.admin.database.v1.Backup].
      *
      * The async variant is {@see DatabaseAdminClient::deleteBackupAsync()} .
      *
@@ -553,7 +555,8 @@ public function dropDatabase(DropDatabaseRequest $request, array $callOptions =
     }
 
     /**
-     * Gets metadata on a pending or completed [Backup][google.spanner.admin.database.v1.Backup].
+     * Gets metadata on a pending or completed
+     * [Backup][google.spanner.admin.database.v1.Backup].
      *
      * The async variant is {@see DatabaseAdminClient::getBackupAsync()} .
      *
@@ -923,7 +926,8 @@ public function testIamPermissions(TestIamPermissionsRequest $request, array $ca
     }
 
     /**
-     * Updates a pending or completed [Backup][google.spanner.admin.database.v1.Backup].
+     * Updates a pending or completed
+     * [Backup][google.spanner.admin.database.v1.Backup].
      *
      * The async variant is {@see DatabaseAdminClient::updateBackupAsync()} .
      *
@@ -1016,7 +1020,8 @@ public function updateDatabase(UpdateDatabaseRequest $request, array $callOption
      * the format `<database_name>/operations/<operation_id>` and can be used to
      * track execution of the schema change(s). The
      * [metadata][google.longrunning.Operation.metadata] field type is
-     * [UpdateDatabaseDdlMetadata][google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata].  The operation has no response.
+     * [UpdateDatabaseDdlMetadata][google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata].
+     * The operation has no response.
      *
      * The async variant is {@see DatabaseAdminClient::updateDatabaseDdlAsync()} .
      *
diff --git a/Spanner/src/Admin/Database/V1/CopyBackupEncryptionConfig.php b/Spanner/src/Admin/Database/V1/CopyBackupEncryptionConfig.php
index 431872668f4e..d9ef7547bba8 100644
--- a/Spanner/src/Admin/Database/V1/CopyBackupEncryptionConfig.php
+++ b/Spanner/src/Admin/Database/V1/CopyBackupEncryptionConfig.php
@@ -24,13 +24,33 @@ class CopyBackupEncryptionConfig extends \Google\Protobuf\Internal\Message
     /**
      * Optional. The Cloud KMS key that will be used to protect the backup.
      * This field should be set only when
-     * [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type] is
-     * `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     * [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type]
+     * is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
      * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
      *
      * Generated from protobuf field <code>string kms_key_name = 2 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
      */
     private $kms_key_name = '';
+    /**
+     * Optional. Specifies the KMS configuration for the one or more keys used to
+     * protect the backup. Values are of the form
+     * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     * Kms keys specified can be in any order.
+     * The keys referenced by kms_key_names must fully cover all
+     * regions of the backup's instance configuration. Some examples:
+     * * For single region instance configs, specify a single regional
+     * location KMS key.
+     * * For multi-regional instance configs of type GOOGLE_MANAGED,
+     * either specify a multi-regional location KMS key or multiple regional
+     * location KMS keys that cover all regions in the instance config.
+     * * For an instance config of type USER_MANAGED, please specify only
+     * regional location KMS keys to cover each region in the instance config.
+     * Multi-regional location KMS keys are not supported for USER_MANAGED
+     * instance configs.
+     *
+     * Generated from protobuf field <code>repeated string kms_key_names = 3 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
+     */
+    private $kms_key_names;
 
     /**
      * Constructor.
@@ -43,9 +63,25 @@ class CopyBackupEncryptionConfig extends \Google\Protobuf\Internal\Message
      *     @type string $kms_key_name
      *           Optional. The Cloud KMS key that will be used to protect the backup.
      *           This field should be set only when
-     *           [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type] is
-     *           `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     *           [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type]
+     *           is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     *           `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $kms_key_names
+     *           Optional. Specifies the KMS configuration for the one or more keys used to
+     *           protect the backup. Values are of the form
      *           `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     *           Kms keys specified can be in any order.
+     *           The keys referenced by kms_key_names must fully cover all
+     *           regions of the backup's instance configuration. Some examples:
+     *           * For single region instance configs, specify a single regional
+     *           location KMS key.
+     *           * For multi-regional instance configs of type GOOGLE_MANAGED,
+     *           either specify a multi-regional location KMS key or multiple regional
+     *           location KMS keys that cover all regions in the instance config.
+     *           * For an instance config of type USER_MANAGED, please specify only
+     *           regional location KMS keys to cover each region in the instance config.
+     *           Multi-regional location KMS keys are not supported for USER_MANAGED
+     *           instance configs.
      * }
      */
     public function __construct($data = NULL) {
@@ -82,8 +118,8 @@ public function setEncryptionType($var)
     /**
      * Optional. The Cloud KMS key that will be used to protect the backup.
      * This field should be set only when
-     * [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type] is
-     * `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     * [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type]
+     * is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
      * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
      *
      * Generated from protobuf field <code>string kms_key_name = 2 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
@@ -97,8 +133,8 @@ public function getKmsKeyName()
     /**
      * Optional. The Cloud KMS key that will be used to protect the backup.
      * This field should be set only when
-     * [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type] is
-     * `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     * [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type]
+     * is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
      * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
      *
      * Generated from protobuf field <code>string kms_key_name = 2 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
@@ -113,5 +149,59 @@ public function setKmsKeyName($var)
         return $this;
     }
 
+    /**
+     * Optional. Specifies the KMS configuration for the one or more keys used to
+     * protect the backup. Values are of the form
+     * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     * Kms keys specified can be in any order.
+     * The keys referenced by kms_key_names must fully cover all
+     * regions of the backup's instance configuration. Some examples:
+     * * For single region instance configs, specify a single regional
+     * location KMS key.
+     * * For multi-regional instance configs of type GOOGLE_MANAGED,
+     * either specify a multi-regional location KMS key or multiple regional
+     * location KMS keys that cover all regions in the instance config.
+     * * For an instance config of type USER_MANAGED, please specify only
+     * regional location KMS keys to cover each region in the instance config.
+     * Multi-regional location KMS keys are not supported for USER_MANAGED
+     * instance configs.
+     *
+     * Generated from protobuf field <code>repeated string kms_key_names = 3 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getKmsKeyNames()
+    {
+        return $this->kms_key_names;
+    }
+
+    /**
+     * Optional. Specifies the KMS configuration for the one or more keys used to
+     * protect the backup. Values are of the form
+     * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     * Kms keys specified can be in any order.
+     * The keys referenced by kms_key_names must fully cover all
+     * regions of the backup's instance configuration. Some examples:
+     * * For single region instance configs, specify a single regional
+     * location KMS key.
+     * * For multi-regional instance configs of type GOOGLE_MANAGED,
+     * either specify a multi-regional location KMS key or multiple regional
+     * location KMS keys that cover all regions in the instance config.
+     * * For an instance config of type USER_MANAGED, please specify only
+     * regional location KMS keys to cover each region in the instance config.
+     * Multi-regional location KMS keys are not supported for USER_MANAGED
+     * instance configs.
+     *
+     * Generated from protobuf field <code>repeated string kms_key_names = 3 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
+     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setKmsKeyNames($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->kms_key_names = $arr;
+
+        return $this;
+    }
+
 }
 
diff --git a/Spanner/src/Admin/Database/V1/CopyBackupEncryptionConfig/EncryptionType.php b/Spanner/src/Admin/Database/V1/CopyBackupEncryptionConfig/EncryptionType.php
index 51a6d9a07393..56fa3e3beb2b 100644
--- a/Spanner/src/Admin/Database/V1/CopyBackupEncryptionConfig/EncryptionType.php
+++ b/Spanner/src/Admin/Database/V1/CopyBackupEncryptionConfig/EncryptionType.php
@@ -20,10 +20,13 @@ class EncryptionType
      */
     const ENCRYPTION_TYPE_UNSPECIFIED = 0;
     /**
-     * This is the default option for [CopyBackup][google.spanner.admin.database.v1.DatabaseAdmin.CopyBackup]
-     * when [encryption_config][google.spanner.admin.database.v1.CopyBackupEncryptionConfig] is not specified.
-     * For example, if the source backup is using `Customer_Managed_Encryption`,
-     * the backup will be using the same Cloud KMS key as the source backup.
+     * This is the default option for
+     * [CopyBackup][google.spanner.admin.database.v1.DatabaseAdmin.CopyBackup]
+     * when
+     * [encryption_config][google.spanner.admin.database.v1.CopyBackupEncryptionConfig]
+     * is not specified. For example, if the source backup is using
+     * `Customer_Managed_Encryption`, the backup will be using the same Cloud
+     * KMS key as the source backup.
      *
      * Generated from protobuf enum <code>USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION = 1;</code>
      */
@@ -35,8 +38,8 @@ class EncryptionType
      */
     const GOOGLE_DEFAULT_ENCRYPTION = 2;
     /**
-     * Use customer managed encryption. If specified, `kms_key_name`
-     * must contain a valid Cloud KMS key.
+     * Use customer managed encryption. If specified, either `kms_key_name` or
+     * `kms_key_names` must contain valid Cloud KMS key(s).
      *
      * Generated from protobuf enum <code>CUSTOMER_MANAGED_ENCRYPTION = 3;</code>
      */
diff --git a/Spanner/src/Admin/Database/V1/CopyBackupMetadata.php b/Spanner/src/Admin/Database/V1/CopyBackupMetadata.php
index 3fcfac667492..b9b4ffaad91e 100644
--- a/Spanner/src/Admin/Database/V1/CopyBackupMetadata.php
+++ b/Spanner/src/Admin/Database/V1/CopyBackupMetadata.php
@@ -9,7 +9,7 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * Metadata type for the google.longrunning.Operation returned by
+ * Metadata type for the operation returned by
  * [CopyBackup][google.spanner.admin.database.v1.DatabaseAdmin.CopyBackup].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.CopyBackupMetadata</code>
@@ -34,7 +34,8 @@ class CopyBackupMetadata extends \Google\Protobuf\Internal\Message
     private $source_backup = '';
     /**
      * The progress of the
-     * [CopyBackup][google.spanner.admin.database.v1.DatabaseAdmin.CopyBackup] operation.
+     * [CopyBackup][google.spanner.admin.database.v1.DatabaseAdmin.CopyBackup]
+     * operation.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.OperationProgress progress = 3;</code>
      */
@@ -73,7 +74,8 @@ class CopyBackupMetadata extends \Google\Protobuf\Internal\Message
      *           `projects/<project>/instances/<instance>/backups/<backup>`.
      *     @type \Google\Cloud\Spanner\Admin\Database\V1\OperationProgress $progress
      *           The progress of the
-     *           [CopyBackup][google.spanner.admin.database.v1.DatabaseAdmin.CopyBackup] operation.
+     *           [CopyBackup][google.spanner.admin.database.v1.DatabaseAdmin.CopyBackup]
+     *           operation.
      *     @type \Google\Protobuf\Timestamp $cancel_time
      *           The time at which cancellation of CopyBackup operation was received.
      *           [Operations.CancelOperation][google.longrunning.Operations.CancelOperation]
@@ -156,7 +158,8 @@ public function setSourceBackup($var)
 
     /**
      * The progress of the
-     * [CopyBackup][google.spanner.admin.database.v1.DatabaseAdmin.CopyBackup] operation.
+     * [CopyBackup][google.spanner.admin.database.v1.DatabaseAdmin.CopyBackup]
+     * operation.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.OperationProgress progress = 3;</code>
      * @return \Google\Cloud\Spanner\Admin\Database\V1\OperationProgress|null
@@ -178,7 +181,8 @@ public function clearProgress()
 
     /**
      * The progress of the
-     * [CopyBackup][google.spanner.admin.database.v1.DatabaseAdmin.CopyBackup] operation.
+     * [CopyBackup][google.spanner.admin.database.v1.DatabaseAdmin.CopyBackup]
+     * operation.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.OperationProgress progress = 3;</code>
      * @param \Google\Cloud\Spanner\Admin\Database\V1\OperationProgress $var
diff --git a/Spanner/src/Admin/Database/V1/CopyBackupRequest.php b/Spanner/src/Admin/Database/V1/CopyBackupRequest.php
index afbab462f19a..5f378df44f18 100644
--- a/Spanner/src/Admin/Database/V1/CopyBackupRequest.php
+++ b/Spanner/src/Admin/Database/V1/CopyBackupRequest.php
@@ -9,15 +9,16 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The request for [CopyBackup][google.spanner.admin.database.v1.DatabaseAdmin.CopyBackup].
+ * The request for
+ * [CopyBackup][google.spanner.admin.database.v1.DatabaseAdmin.CopyBackup].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.CopyBackupRequest</code>
  */
 class CopyBackupRequest extends \Google\Protobuf\Internal\Message
 {
     /**
-     * Required. The name of the destination instance that will contain the backup copy.
-     * Values are of the form: `projects/<project>/instances/<instance>`.
+     * Required. The name of the destination instance that will contain the backup
+     * copy. Values are of the form: `projects/<project>/instances/<instance>`.
      *
      * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
      */
@@ -52,19 +53,19 @@ class CopyBackupRequest extends \Google\Protobuf\Internal\Message
      */
     private $expire_time = null;
     /**
-     * Optional. The encryption configuration used to encrypt the backup. If this field is
-     * not specified, the backup will use the same
-     * encryption configuration as the source backup by default, namely
-     * [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type] =
-     * `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
+     * Optional. The encryption configuration used to encrypt the backup. If this
+     * field is not specified, the backup will use the same encryption
+     * configuration as the source backup by default, namely
+     * [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type]
+     * = `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.CopyBackupEncryptionConfig encryption_config = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
      */
     private $encryption_config = null;
 
     /**
-     * @param string                     $parent       Required. The name of the destination instance that will contain the backup copy.
-     *                                                 Values are of the form: `projects/<project>/instances/<instance>`. Please see
+     * @param string                     $parent       Required. The name of the destination instance that will contain the backup
+     *                                                 copy. Values are of the form: `projects/<project>/instances/<instance>`. Please see
      *                                                 {@see DatabaseAdminClient::instanceName()} for help formatting this field.
      * @param string                     $backupId     Required. The id of the backup copy.
      *                                                 The `backup_id` appended to `parent` forms the full backup_uri of the form
@@ -102,8 +103,8 @@ public static function build(string $parent, string $backupId, string $sourceBac
      *     Optional. Data for populating the Message object.
      *
      *     @type string $parent
-     *           Required. The name of the destination instance that will contain the backup copy.
-     *           Values are of the form: `projects/<project>/instances/<instance>`.
+     *           Required. The name of the destination instance that will contain the backup
+     *           copy. Values are of the form: `projects/<project>/instances/<instance>`.
      *     @type string $backup_id
      *           Required. The id of the backup copy.
      *           The `backup_id` appended to `parent` forms the full backup_uri of the form
@@ -122,11 +123,11 @@ public static function build(string $parent, string $backupId, string $sourceBac
      *           passed, the backup is eligible to be automatically deleted by Cloud Spanner
      *           to free the resources used by the backup.
      *     @type \Google\Cloud\Spanner\Admin\Database\V1\CopyBackupEncryptionConfig $encryption_config
-     *           Optional. The encryption configuration used to encrypt the backup. If this field is
-     *           not specified, the backup will use the same
-     *           encryption configuration as the source backup by default, namely
-     *           [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type] =
-     *           `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
+     *           Optional. The encryption configuration used to encrypt the backup. If this
+     *           field is not specified, the backup will use the same encryption
+     *           configuration as the source backup by default, namely
+     *           [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type]
+     *           = `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
      * }
      */
     public function __construct($data = NULL) {
@@ -135,8 +136,8 @@ public function __construct($data = NULL) {
     }
 
     /**
-     * Required. The name of the destination instance that will contain the backup copy.
-     * Values are of the form: `projects/<project>/instances/<instance>`.
+     * Required. The name of the destination instance that will contain the backup
+     * copy. Values are of the form: `projects/<project>/instances/<instance>`.
      *
      * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
      * @return string
@@ -147,8 +148,8 @@ public function getParent()
     }
 
     /**
-     * Required. The name of the destination instance that will contain the backup copy.
-     * Values are of the form: `projects/<project>/instances/<instance>`.
+     * Required. The name of the destination instance that will contain the backup
+     * copy. Values are of the form: `projects/<project>/instances/<instance>`.
      *
      * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
      * @param string $var
@@ -273,11 +274,11 @@ public function setExpireTime($var)
     }
 
     /**
-     * Optional. The encryption configuration used to encrypt the backup. If this field is
-     * not specified, the backup will use the same
-     * encryption configuration as the source backup by default, namely
-     * [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type] =
-     * `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
+     * Optional. The encryption configuration used to encrypt the backup. If this
+     * field is not specified, the backup will use the same encryption
+     * configuration as the source backup by default, namely
+     * [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type]
+     * = `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.CopyBackupEncryptionConfig encryption_config = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
      * @return \Google\Cloud\Spanner\Admin\Database\V1\CopyBackupEncryptionConfig|null
@@ -298,11 +299,11 @@ public function clearEncryptionConfig()
     }
 
     /**
-     * Optional. The encryption configuration used to encrypt the backup. If this field is
-     * not specified, the backup will use the same
-     * encryption configuration as the source backup by default, namely
-     * [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type] =
-     * `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
+     * Optional. The encryption configuration used to encrypt the backup. If this
+     * field is not specified, the backup will use the same encryption
+     * configuration as the source backup by default, namely
+     * [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type]
+     * = `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.CopyBackupEncryptionConfig encryption_config = 5 [(.google.api.field_behavior) = OPTIONAL];</code>
      * @param \Google\Cloud\Spanner\Admin\Database\V1\CopyBackupEncryptionConfig $var
diff --git a/Spanner/src/Admin/Database/V1/CreateBackupEncryptionConfig.php b/Spanner/src/Admin/Database/V1/CreateBackupEncryptionConfig.php
index 0d13ca063e94..856296def13e 100644
--- a/Spanner/src/Admin/Database/V1/CreateBackupEncryptionConfig.php
+++ b/Spanner/src/Admin/Database/V1/CreateBackupEncryptionConfig.php
@@ -24,13 +24,32 @@ class CreateBackupEncryptionConfig extends \Google\Protobuf\Internal\Message
     /**
      * Optional. The Cloud KMS key that will be used to protect the backup.
      * This field should be set only when
-     * [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type] is
-     * `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     * [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type]
+     * is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
      * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
      *
      * Generated from protobuf field <code>string kms_key_name = 2 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
      */
     private $kms_key_name = '';
+    /**
+     * Optional. Specifies the KMS configuration for the one or more keys used to
+     * protect the backup. Values are of the form
+     * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     * The keys referenced by kms_key_names must fully cover all
+     * regions of the backup's instance configuration. Some examples:
+     * * For single region instance configs, specify a single regional
+     * location KMS key.
+     * * For multi-regional instance configs of type GOOGLE_MANAGED,
+     * either specify a multi-regional location KMS key or multiple regional
+     * location KMS keys that cover all regions in the instance config.
+     * * For an instance config of type USER_MANAGED, please specify only
+     * regional location KMS keys to cover each region in the instance config.
+     * Multi-regional location KMS keys are not supported for USER_MANAGED
+     * instance configs.
+     *
+     * Generated from protobuf field <code>repeated string kms_key_names = 3 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
+     */
+    private $kms_key_names;
 
     /**
      * Constructor.
@@ -43,9 +62,24 @@ class CreateBackupEncryptionConfig extends \Google\Protobuf\Internal\Message
      *     @type string $kms_key_name
      *           Optional. The Cloud KMS key that will be used to protect the backup.
      *           This field should be set only when
-     *           [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type] is
-     *           `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     *           [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type]
+     *           is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     *           `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $kms_key_names
+     *           Optional. Specifies the KMS configuration for the one or more keys used to
+     *           protect the backup. Values are of the form
      *           `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     *           The keys referenced by kms_key_names must fully cover all
+     *           regions of the backup's instance configuration. Some examples:
+     *           * For single region instance configs, specify a single regional
+     *           location KMS key.
+     *           * For multi-regional instance configs of type GOOGLE_MANAGED,
+     *           either specify a multi-regional location KMS key or multiple regional
+     *           location KMS keys that cover all regions in the instance config.
+     *           * For an instance config of type USER_MANAGED, please specify only
+     *           regional location KMS keys to cover each region in the instance config.
+     *           Multi-regional location KMS keys are not supported for USER_MANAGED
+     *           instance configs.
      * }
      */
     public function __construct($data = NULL) {
@@ -82,8 +116,8 @@ public function setEncryptionType($var)
     /**
      * Optional. The Cloud KMS key that will be used to protect the backup.
      * This field should be set only when
-     * [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type] is
-     * `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     * [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type]
+     * is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
      * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
      *
      * Generated from protobuf field <code>string kms_key_name = 2 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
@@ -97,8 +131,8 @@ public function getKmsKeyName()
     /**
      * Optional. The Cloud KMS key that will be used to protect the backup.
      * This field should be set only when
-     * [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type] is
-     * `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     * [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type]
+     * is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
      * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
      *
      * Generated from protobuf field <code>string kms_key_name = 2 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
@@ -113,5 +147,57 @@ public function setKmsKeyName($var)
         return $this;
     }
 
+    /**
+     * Optional. Specifies the KMS configuration for the one or more keys used to
+     * protect the backup. Values are of the form
+     * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     * The keys referenced by kms_key_names must fully cover all
+     * regions of the backup's instance configuration. Some examples:
+     * * For single region instance configs, specify a single regional
+     * location KMS key.
+     * * For multi-regional instance configs of type GOOGLE_MANAGED,
+     * either specify a multi-regional location KMS key or multiple regional
+     * location KMS keys that cover all regions in the instance config.
+     * * For an instance config of type USER_MANAGED, please specify only
+     * regional location KMS keys to cover each region in the instance config.
+     * Multi-regional location KMS keys are not supported for USER_MANAGED
+     * instance configs.
+     *
+     * Generated from protobuf field <code>repeated string kms_key_names = 3 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getKmsKeyNames()
+    {
+        return $this->kms_key_names;
+    }
+
+    /**
+     * Optional. Specifies the KMS configuration for the one or more keys used to
+     * protect the backup. Values are of the form
+     * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     * The keys referenced by kms_key_names must fully cover all
+     * regions of the backup's instance configuration. Some examples:
+     * * For single region instance configs, specify a single regional
+     * location KMS key.
+     * * For multi-regional instance configs of type GOOGLE_MANAGED,
+     * either specify a multi-regional location KMS key or multiple regional
+     * location KMS keys that cover all regions in the instance config.
+     * * For an instance config of type USER_MANAGED, please specify only
+     * regional location KMS keys to cover each region in the instance config.
+     * Multi-regional location KMS keys are not supported for USER_MANAGED
+     * instance configs.
+     *
+     * Generated from protobuf field <code>repeated string kms_key_names = 3 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
+     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setKmsKeyNames($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->kms_key_names = $arr;
+
+        return $this;
+    }
+
 }
 
diff --git a/Spanner/src/Admin/Database/V1/CreateBackupEncryptionConfig/EncryptionType.php b/Spanner/src/Admin/Database/V1/CreateBackupEncryptionConfig/EncryptionType.php
index 028d9da2fb85..be6e5fb5ea47 100644
--- a/Spanner/src/Admin/Database/V1/CreateBackupEncryptionConfig/EncryptionType.php
+++ b/Spanner/src/Admin/Database/V1/CreateBackupEncryptionConfig/EncryptionType.php
@@ -22,9 +22,10 @@ class EncryptionType
     /**
      * Use the same encryption configuration as the database. This is the
      * default option when
-     * [encryption_config][google.spanner.admin.database.v1.CreateBackupEncryptionConfig] is empty.
-     * For example, if the database is using `Customer_Managed_Encryption`, the
-     * backup will be using the same Cloud KMS key as the database.
+     * [encryption_config][google.spanner.admin.database.v1.CreateBackupEncryptionConfig]
+     * is empty. For example, if the database is using
+     * `Customer_Managed_Encryption`, the backup will be using the same Cloud
+     * KMS key as the database.
      *
      * Generated from protobuf enum <code>USE_DATABASE_ENCRYPTION = 1;</code>
      */
diff --git a/Spanner/src/Admin/Database/V1/CreateBackupMetadata.php b/Spanner/src/Admin/Database/V1/CreateBackupMetadata.php
index eac5b5c71117..7239db16db11 100644
--- a/Spanner/src/Admin/Database/V1/CreateBackupMetadata.php
+++ b/Spanner/src/Admin/Database/V1/CreateBackupMetadata.php
@@ -30,7 +30,8 @@ class CreateBackupMetadata extends \Google\Protobuf\Internal\Message
     private $database = '';
     /**
      * The progress of the
-     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] operation.
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * operation.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.OperationProgress progress = 3;</code>
      */
@@ -65,7 +66,8 @@ class CreateBackupMetadata extends \Google\Protobuf\Internal\Message
      *           The name of the database the backup is created from.
      *     @type \Google\Cloud\Spanner\Admin\Database\V1\OperationProgress $progress
      *           The progress of the
-     *           [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] operation.
+     *           [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     *           operation.
      *     @type \Google\Protobuf\Timestamp $cancel_time
      *           The time at which cancellation of this operation was received.
      *           [Operations.CancelOperation][google.longrunning.Operations.CancelOperation]
@@ -140,7 +142,8 @@ public function setDatabase($var)
 
     /**
      * The progress of the
-     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] operation.
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * operation.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.OperationProgress progress = 3;</code>
      * @return \Google\Cloud\Spanner\Admin\Database\V1\OperationProgress|null
@@ -162,7 +165,8 @@ public function clearProgress()
 
     /**
      * The progress of the
-     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup] operation.
+     * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup]
+     * operation.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.OperationProgress progress = 3;</code>
      * @param \Google\Cloud\Spanner\Admin\Database\V1\OperationProgress $var
diff --git a/Spanner/src/Admin/Database/V1/CreateBackupRequest.php b/Spanner/src/Admin/Database/V1/CreateBackupRequest.php
index fdeba10b5902..552eaff66df3 100644
--- a/Spanner/src/Admin/Database/V1/CreateBackupRequest.php
+++ b/Spanner/src/Admin/Database/V1/CreateBackupRequest.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The request for [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup].
+ * The request for
+ * [CreateBackup][google.spanner.admin.database.v1.DatabaseAdmin.CreateBackup].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.CreateBackupRequest</code>
  */
@@ -41,11 +42,11 @@ class CreateBackupRequest extends \Google\Protobuf\Internal\Message
      */
     private $backup = null;
     /**
-     * Optional. The encryption configuration used to encrypt the backup. If this field is
-     * not specified, the backup will use the same
-     * encryption configuration as the database by default, namely
-     * [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type] =
-     * `USE_DATABASE_ENCRYPTION`.
+     * Optional. The encryption configuration used to encrypt the backup. If this
+     * field is not specified, the backup will use the same encryption
+     * configuration as the database by default, namely
+     * [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type]
+     * = `USE_DATABASE_ENCRYPTION`.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.CreateBackupEncryptionConfig encryption_config = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
      */
@@ -96,11 +97,11 @@ public static function build(string $parent, \Google\Cloud\Spanner\Admin\Databas
      *     @type \Google\Cloud\Spanner\Admin\Database\V1\Backup $backup
      *           Required. The backup to create.
      *     @type \Google\Cloud\Spanner\Admin\Database\V1\CreateBackupEncryptionConfig $encryption_config
-     *           Optional. The encryption configuration used to encrypt the backup. If this field is
-     *           not specified, the backup will use the same
-     *           encryption configuration as the database by default, namely
-     *           [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type] =
-     *           `USE_DATABASE_ENCRYPTION`.
+     *           Optional. The encryption configuration used to encrypt the backup. If this
+     *           field is not specified, the backup will use the same encryption
+     *           configuration as the database by default, namely
+     *           [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type]
+     *           = `USE_DATABASE_ENCRYPTION`.
      * }
      */
     public function __construct($data = NULL) {
@@ -211,11 +212,11 @@ public function setBackup($var)
     }
 
     /**
-     * Optional. The encryption configuration used to encrypt the backup. If this field is
-     * not specified, the backup will use the same
-     * encryption configuration as the database by default, namely
-     * [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type] =
-     * `USE_DATABASE_ENCRYPTION`.
+     * Optional. The encryption configuration used to encrypt the backup. If this
+     * field is not specified, the backup will use the same encryption
+     * configuration as the database by default, namely
+     * [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type]
+     * = `USE_DATABASE_ENCRYPTION`.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.CreateBackupEncryptionConfig encryption_config = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
      * @return \Google\Cloud\Spanner\Admin\Database\V1\CreateBackupEncryptionConfig|null
@@ -236,11 +237,11 @@ public function clearEncryptionConfig()
     }
 
     /**
-     * Optional. The encryption configuration used to encrypt the backup. If this field is
-     * not specified, the backup will use the same
-     * encryption configuration as the database by default, namely
-     * [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type] =
-     * `USE_DATABASE_ENCRYPTION`.
+     * Optional. The encryption configuration used to encrypt the backup. If this
+     * field is not specified, the backup will use the same encryption
+     * configuration as the database by default, namely
+     * [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type]
+     * = `USE_DATABASE_ENCRYPTION`.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.CreateBackupEncryptionConfig encryption_config = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
      * @param \Google\Cloud\Spanner\Admin\Database\V1\CreateBackupEncryptionConfig $var
diff --git a/Spanner/src/Admin/Database/V1/CreateDatabaseRequest.php b/Spanner/src/Admin/Database/V1/CreateDatabaseRequest.php
index 2d89bee7142b..3dbfcc5511cc 100644
--- a/Spanner/src/Admin/Database/V1/CreateDatabaseRequest.php
+++ b/Spanner/src/Admin/Database/V1/CreateDatabaseRequest.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The request for [CreateDatabase][google.spanner.admin.database.v1.DatabaseAdmin.CreateDatabase].
+ * The request for
+ * [CreateDatabase][google.spanner.admin.database.v1.DatabaseAdmin.CreateDatabase].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.CreateDatabaseRequest</code>
  */
@@ -42,8 +43,8 @@ class CreateDatabaseRequest extends \Google\Protobuf\Internal\Message
      */
     private $extra_statements;
     /**
-     * Optional. The encryption configuration for the database. If this field is not
-     * specified, Cloud Spanner will encrypt/decrypt all data at rest using
+     * Optional. The encryption configuration for the database. If this field is
+     * not specified, Cloud Spanner will encrypt/decrypt all data at rest using
      * Google default encryption.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.EncryptionConfig encryption_config = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
@@ -118,8 +119,8 @@ public static function build(string $parent, string $createStatement): self
      *           statements execute atomically with the creation of the database:
      *           if there is an error in any statement, the database is not created.
      *     @type \Google\Cloud\Spanner\Admin\Database\V1\EncryptionConfig $encryption_config
-     *           Optional. The encryption configuration for the database. If this field is not
-     *           specified, Cloud Spanner will encrypt/decrypt all data at rest using
+     *           Optional. The encryption configuration for the database. If this field is
+     *           not specified, Cloud Spanner will encrypt/decrypt all data at rest using
      *           Google default encryption.
      *     @type int $database_dialect
      *           Optional. The dialect of the Cloud Spanner Database.
@@ -241,8 +242,8 @@ public function setExtraStatements($var)
     }
 
     /**
-     * Optional. The encryption configuration for the database. If this field is not
-     * specified, Cloud Spanner will encrypt/decrypt all data at rest using
+     * Optional. The encryption configuration for the database. If this field is
+     * not specified, Cloud Spanner will encrypt/decrypt all data at rest using
      * Google default encryption.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.EncryptionConfig encryption_config = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
@@ -264,8 +265,8 @@ public function clearEncryptionConfig()
     }
 
     /**
-     * Optional. The encryption configuration for the database. If this field is not
-     * specified, Cloud Spanner will encrypt/decrypt all data at rest using
+     * Optional. The encryption configuration for the database. If this field is
+     * not specified, Cloud Spanner will encrypt/decrypt all data at rest using
      * Google default encryption.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.EncryptionConfig encryption_config = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
diff --git a/Spanner/src/Admin/Database/V1/Database.php b/Spanner/src/Admin/Database/V1/Database.php
index 60338534d345..a9b8a57a434e 100644
--- a/Spanner/src/Admin/Database/V1/Database.php
+++ b/Spanner/src/Admin/Database/V1/Database.php
@@ -56,7 +56,8 @@ class Database extends \Google\Protobuf\Internal\Message
     /**
      * Output only. For databases that are using customer managed encryption, this
      * field contains the encryption information for the database, such as
-     * encryption state and the Cloud KMS key versions that are in use.
+     * all Cloud KMS key versions that are in use. The `encryption_status' field
+     * inside of each `EncryptionInfo` is not populated.
      * For databases that are using Google default or other types of encryption,
      * this field is empty.
      * This field is propagated lazily from the backend. There might be a delay
@@ -69,8 +70,8 @@ class Database extends \Google\Protobuf\Internal\Message
      * Output only. The period in which Cloud Spanner retains all versions of data
      * for the database. This is the same as the value of version_retention_period
      * database option set using
-     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]. Defaults to 1 hour,
-     * if not set.
+     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl].
+     * Defaults to 1 hour, if not set.
      *
      * Generated from protobuf field <code>string version_retention_period = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
      */
@@ -103,7 +104,9 @@ class Database extends \Google\Protobuf\Internal\Message
     private $database_dialect = 0;
     /**
      * Whether drop protection is enabled for this database. Defaults to false,
-     * if not set.
+     * if not set. For more details, please see how to [prevent accidental
+     * database
+     * deletion](https://cloud.google.com/spanner/docs/prevent-database-deletion).
      *
      * Generated from protobuf field <code>bool enable_drop_protection = 11;</code>
      */
@@ -143,7 +146,8 @@ class Database extends \Google\Protobuf\Internal\Message
      *     @type array<\Google\Cloud\Spanner\Admin\Database\V1\EncryptionInfo>|\Google\Protobuf\Internal\RepeatedField $encryption_info
      *           Output only. For databases that are using customer managed encryption, this
      *           field contains the encryption information for the database, such as
-     *           encryption state and the Cloud KMS key versions that are in use.
+     *           all Cloud KMS key versions that are in use. The `encryption_status' field
+     *           inside of each `EncryptionInfo` is not populated.
      *           For databases that are using Google default or other types of encryption,
      *           this field is empty.
      *           This field is propagated lazily from the backend. There might be a delay
@@ -152,8 +156,8 @@ class Database extends \Google\Protobuf\Internal\Message
      *           Output only. The period in which Cloud Spanner retains all versions of data
      *           for the database. This is the same as the value of version_retention_period
      *           database option set using
-     *           [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]. Defaults to 1 hour,
-     *           if not set.
+     *           [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl].
+     *           Defaults to 1 hour, if not set.
      *     @type \Google\Protobuf\Timestamp $earliest_version_time
      *           Output only. Earliest timestamp at which older versions of the data can be
      *           read. This value is continuously updated by Cloud Spanner and becomes stale
@@ -170,7 +174,9 @@ class Database extends \Google\Protobuf\Internal\Message
      *           Output only. The dialect of the Cloud Spanner Database.
      *     @type bool $enable_drop_protection
      *           Whether drop protection is enabled for this database. Defaults to false,
-     *           if not set.
+     *           if not set. For more details, please see how to [prevent accidental
+     *           database
+     *           deletion](https://cloud.google.com/spanner/docs/prevent-database-deletion).
      *     @type bool $reconciling
      *           Output only. If true, the database is being updated. If false, there are no
      *           ongoing update operations for the database.
@@ -360,7 +366,8 @@ public function setEncryptionConfig($var)
     /**
      * Output only. For databases that are using customer managed encryption, this
      * field contains the encryption information for the database, such as
-     * encryption state and the Cloud KMS key versions that are in use.
+     * all Cloud KMS key versions that are in use. The `encryption_status' field
+     * inside of each `EncryptionInfo` is not populated.
      * For databases that are using Google default or other types of encryption,
      * this field is empty.
      * This field is propagated lazily from the backend. There might be a delay
@@ -377,7 +384,8 @@ public function getEncryptionInfo()
     /**
      * Output only. For databases that are using customer managed encryption, this
      * field contains the encryption information for the database, such as
-     * encryption state and the Cloud KMS key versions that are in use.
+     * all Cloud KMS key versions that are in use. The `encryption_status' field
+     * inside of each `EncryptionInfo` is not populated.
      * For databases that are using Google default or other types of encryption,
      * this field is empty.
      * This field is propagated lazily from the backend. There might be a delay
@@ -399,8 +407,8 @@ public function setEncryptionInfo($var)
      * Output only. The period in which Cloud Spanner retains all versions of data
      * for the database. This is the same as the value of version_retention_period
      * database option set using
-     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]. Defaults to 1 hour,
-     * if not set.
+     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl].
+     * Defaults to 1 hour, if not set.
      *
      * Generated from protobuf field <code>string version_retention_period = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
      * @return string
@@ -414,8 +422,8 @@ public function getVersionRetentionPeriod()
      * Output only. The period in which Cloud Spanner retains all versions of data
      * for the database. This is the same as the value of version_retention_period
      * database option set using
-     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]. Defaults to 1 hour,
-     * if not set.
+     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl].
+     * Defaults to 1 hour, if not set.
      *
      * Generated from protobuf field <code>string version_retention_period = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
      * @param string $var
@@ -535,7 +543,9 @@ public function setDatabaseDialect($var)
 
     /**
      * Whether drop protection is enabled for this database. Defaults to false,
-     * if not set.
+     * if not set. For more details, please see how to [prevent accidental
+     * database
+     * deletion](https://cloud.google.com/spanner/docs/prevent-database-deletion).
      *
      * Generated from protobuf field <code>bool enable_drop_protection = 11;</code>
      * @return bool
@@ -547,7 +557,9 @@ public function getEnableDropProtection()
 
     /**
      * Whether drop protection is enabled for this database. Defaults to false,
-     * if not set.
+     * if not set. For more details, please see how to [prevent accidental
+     * database
+     * deletion](https://cloud.google.com/spanner/docs/prevent-database-deletion).
      *
      * Generated from protobuf field <code>bool enable_drop_protection = 11;</code>
      * @param bool $var
diff --git a/Spanner/src/Admin/Database/V1/DatabaseDialect.php b/Spanner/src/Admin/Database/V1/DatabaseDialect.php
index 244d47d5a2bd..ed173031894b 100644
--- a/Spanner/src/Admin/Database/V1/DatabaseDialect.php
+++ b/Spanner/src/Admin/Database/V1/DatabaseDialect.php
@@ -21,7 +21,7 @@ class DatabaseDialect
      */
     const DATABASE_DIALECT_UNSPECIFIED = 0;
     /**
-     * Google standard SQL.
+     * GoogleSQL supported SQL.
      *
      * Generated from protobuf enum <code>GOOGLE_STANDARD_SQL = 1;</code>
      */
diff --git a/Spanner/src/Admin/Database/V1/DatabaseRole.php b/Spanner/src/Admin/Database/V1/DatabaseRole.php
index d36675860ff6..f7e32c23f83a 100644
--- a/Spanner/src/Admin/Database/V1/DatabaseRole.php
+++ b/Spanner/src/Admin/Database/V1/DatabaseRole.php
@@ -17,10 +17,8 @@ class DatabaseRole extends \Google\Protobuf\Internal\Message
 {
     /**
      * Required. The name of the database role. Values are of the form
-     * `projects/<project>/instances/<instance>/databases/<database>/databaseRoles/
-     * {role}`, where `<role>` is as specified in the `CREATE ROLE`
-     * DDL statement. This name can be passed to Get/Set IAMPolicy methods to
-     * identify the database role.
+     * `projects/<project>/instances/<instance>/databases/<database>/databaseRoles/<role>`
+     * where `<role>` is as specified in the `CREATE ROLE` DDL statement.
      *
      * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
      */
@@ -34,10 +32,8 @@ class DatabaseRole extends \Google\Protobuf\Internal\Message
      *
      *     @type string $name
      *           Required. The name of the database role. Values are of the form
-     *           `projects/<project>/instances/<instance>/databases/<database>/databaseRoles/
-     *           {role}`, where `<role>` is as specified in the `CREATE ROLE`
-     *           DDL statement. This name can be passed to Get/Set IAMPolicy methods to
-     *           identify the database role.
+     *           `projects/<project>/instances/<instance>/databases/<database>/databaseRoles/<role>`
+     *           where `<role>` is as specified in the `CREATE ROLE` DDL statement.
      * }
      */
     public function __construct($data = NULL) {
@@ -47,10 +43,8 @@ public function __construct($data = NULL) {
 
     /**
      * Required. The name of the database role. Values are of the form
-     * `projects/<project>/instances/<instance>/databases/<database>/databaseRoles/
-     * {role}`, where `<role>` is as specified in the `CREATE ROLE`
-     * DDL statement. This name can be passed to Get/Set IAMPolicy methods to
-     * identify the database role.
+     * `projects/<project>/instances/<instance>/databases/<database>/databaseRoles/<role>`
+     * where `<role>` is as specified in the `CREATE ROLE` DDL statement.
      *
      * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
      * @return string
@@ -62,10 +56,8 @@ public function getName()
 
     /**
      * Required. The name of the database role. Values are of the form
-     * `projects/<project>/instances/<instance>/databases/<database>/databaseRoles/
-     * {role}`, where `<role>` is as specified in the `CREATE ROLE`
-     * DDL statement. This name can be passed to Get/Set IAMPolicy methods to
-     * identify the database role.
+     * `projects/<project>/instances/<instance>/databases/<database>/databaseRoles/<role>`
+     * where `<role>` is as specified in the `CREATE ROLE` DDL statement.
      *
      * Generated from protobuf field <code>string name = 1 [(.google.api.field_behavior) = REQUIRED];</code>
      * @param string $var
diff --git a/Spanner/src/Admin/Database/V1/DeleteBackupRequest.php b/Spanner/src/Admin/Database/V1/DeleteBackupRequest.php
index 781ef97957dc..f8ae101ba9d9 100644
--- a/Spanner/src/Admin/Database/V1/DeleteBackupRequest.php
+++ b/Spanner/src/Admin/Database/V1/DeleteBackupRequest.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The request for [DeleteBackup][google.spanner.admin.database.v1.DatabaseAdmin.DeleteBackup].
+ * The request for
+ * [DeleteBackup][google.spanner.admin.database.v1.DatabaseAdmin.DeleteBackup].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.DeleteBackupRequest</code>
  */
diff --git a/Spanner/src/Admin/Database/V1/DropDatabaseRequest.php b/Spanner/src/Admin/Database/V1/DropDatabaseRequest.php
index 4ae113b8a14f..993cbe1e73ee 100644
--- a/Spanner/src/Admin/Database/V1/DropDatabaseRequest.php
+++ b/Spanner/src/Admin/Database/V1/DropDatabaseRequest.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The request for [DropDatabase][google.spanner.admin.database.v1.DatabaseAdmin.DropDatabase].
+ * The request for
+ * [DropDatabase][google.spanner.admin.database.v1.DatabaseAdmin.DropDatabase].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.DropDatabaseRequest</code>
  */
diff --git a/Spanner/src/Admin/Database/V1/EncryptionConfig.php b/Spanner/src/Admin/Database/V1/EncryptionConfig.php
index 04e1610307ba..62529b83264e 100644
--- a/Spanner/src/Admin/Database/V1/EncryptionConfig.php
+++ b/Spanner/src/Admin/Database/V1/EncryptionConfig.php
@@ -23,6 +23,25 @@ class EncryptionConfig extends \Google\Protobuf\Internal\Message
      * Generated from protobuf field <code>string kms_key_name = 2 [(.google.api.resource_reference) = {</code>
      */
     private $kms_key_name = '';
+    /**
+     * Specifies the KMS configuration for the one or more keys used to encrypt
+     * the database. Values are of the form
+     * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     * The keys referenced by kms_key_names must fully cover all
+     * regions of the database instance configuration. Some examples:
+     * * For single region database instance configs, specify a single regional
+     * location KMS key.
+     * * For multi-regional database instance configs of type GOOGLE_MANAGED,
+     * either specify a multi-regional location KMS key or multiple regional
+     * location KMS keys that cover all regions in the instance config.
+     * * For a database instance config of type USER_MANAGED, please specify only
+     * regional location KMS keys to cover each region in the instance config.
+     * Multi-regional location KMS keys are not supported for USER_MANAGED
+     * instance configs.
+     *
+     * Generated from protobuf field <code>repeated string kms_key_names = 3 [(.google.api.resource_reference) = {</code>
+     */
+    private $kms_key_names;
 
     /**
      * Constructor.
@@ -34,6 +53,21 @@ class EncryptionConfig extends \Google\Protobuf\Internal\Message
      *           The Cloud KMS key to be used for encrypting and decrypting
      *           the database. Values are of the form
      *           `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $kms_key_names
+     *           Specifies the KMS configuration for the one or more keys used to encrypt
+     *           the database. Values are of the form
+     *           `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     *           The keys referenced by kms_key_names must fully cover all
+     *           regions of the database instance configuration. Some examples:
+     *           * For single region database instance configs, specify a single regional
+     *           location KMS key.
+     *           * For multi-regional database instance configs of type GOOGLE_MANAGED,
+     *           either specify a multi-regional location KMS key or multiple regional
+     *           location KMS keys that cover all regions in the instance config.
+     *           * For a database instance config of type USER_MANAGED, please specify only
+     *           regional location KMS keys to cover each region in the instance config.
+     *           Multi-regional location KMS keys are not supported for USER_MANAGED
+     *           instance configs.
      * }
      */
     public function __construct($data = NULL) {
@@ -71,5 +105,57 @@ public function setKmsKeyName($var)
         return $this;
     }
 
+    /**
+     * Specifies the KMS configuration for the one or more keys used to encrypt
+     * the database. Values are of the form
+     * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     * The keys referenced by kms_key_names must fully cover all
+     * regions of the database instance configuration. Some examples:
+     * * For single region database instance configs, specify a single regional
+     * location KMS key.
+     * * For multi-regional database instance configs of type GOOGLE_MANAGED,
+     * either specify a multi-regional location KMS key or multiple regional
+     * location KMS keys that cover all regions in the instance config.
+     * * For a database instance config of type USER_MANAGED, please specify only
+     * regional location KMS keys to cover each region in the instance config.
+     * Multi-regional location KMS keys are not supported for USER_MANAGED
+     * instance configs.
+     *
+     * Generated from protobuf field <code>repeated string kms_key_names = 3 [(.google.api.resource_reference) = {</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getKmsKeyNames()
+    {
+        return $this->kms_key_names;
+    }
+
+    /**
+     * Specifies the KMS configuration for the one or more keys used to encrypt
+     * the database. Values are of the form
+     * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     * The keys referenced by kms_key_names must fully cover all
+     * regions of the database instance configuration. Some examples:
+     * * For single region database instance configs, specify a single regional
+     * location KMS key.
+     * * For multi-regional database instance configs of type GOOGLE_MANAGED,
+     * either specify a multi-regional location KMS key or multiple regional
+     * location KMS keys that cover all regions in the instance config.
+     * * For a database instance config of type USER_MANAGED, please specify only
+     * regional location KMS keys to cover each region in the instance config.
+     * Multi-regional location KMS keys are not supported for USER_MANAGED
+     * instance configs.
+     *
+     * Generated from protobuf field <code>repeated string kms_key_names = 3 [(.google.api.resource_reference) = {</code>
+     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setKmsKeyNames($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->kms_key_names = $arr;
+
+        return $this;
+    }
+
 }
 
diff --git a/Spanner/src/Admin/Database/V1/EncryptionInfo.php b/Spanner/src/Admin/Database/V1/EncryptionInfo.php
index 2580842d5957..38ae91890389 100644
--- a/Spanner/src/Admin/Database/V1/EncryptionInfo.php
+++ b/Spanner/src/Admin/Database/V1/EncryptionInfo.php
@@ -22,16 +22,16 @@ class EncryptionInfo extends \Google\Protobuf\Internal\Message
      */
     private $encryption_type = 0;
     /**
-     * Output only. If present, the status of a recent encrypt/decrypt call on underlying data
-     * for this database or backup. Regardless of status, data is always encrypted
-     * at rest.
+     * Output only. If present, the status of a recent encrypt/decrypt call on
+     * underlying data for this database or backup. Regardless of status, data is
+     * always encrypted at rest.
      *
      * Generated from protobuf field <code>.google.rpc.Status encryption_status = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
      */
     private $encryption_status = null;
     /**
-     * Output only. A Cloud KMS key version that is being used to protect the database or
-     * backup.
+     * Output only. A Cloud KMS key version that is being used to protect the
+     * database or backup.
      *
      * Generated from protobuf field <code>string kms_key_version = 2 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.resource_reference) = {</code>
      */
@@ -46,12 +46,12 @@ class EncryptionInfo extends \Google\Protobuf\Internal\Message
      *     @type int $encryption_type
      *           Output only. The type of encryption.
      *     @type \Google\Rpc\Status $encryption_status
-     *           Output only. If present, the status of a recent encrypt/decrypt call on underlying data
-     *           for this database or backup. Regardless of status, data is always encrypted
-     *           at rest.
+     *           Output only. If present, the status of a recent encrypt/decrypt call on
+     *           underlying data for this database or backup. Regardless of status, data is
+     *           always encrypted at rest.
      *     @type string $kms_key_version
-     *           Output only. A Cloud KMS key version that is being used to protect the database or
-     *           backup.
+     *           Output only. A Cloud KMS key version that is being used to protect the
+     *           database or backup.
      * }
      */
     public function __construct($data = NULL) {
@@ -86,9 +86,9 @@ public function setEncryptionType($var)
     }
 
     /**
-     * Output only. If present, the status of a recent encrypt/decrypt call on underlying data
-     * for this database or backup. Regardless of status, data is always encrypted
-     * at rest.
+     * Output only. If present, the status of a recent encrypt/decrypt call on
+     * underlying data for this database or backup. Regardless of status, data is
+     * always encrypted at rest.
      *
      * Generated from protobuf field <code>.google.rpc.Status encryption_status = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
      * @return \Google\Rpc\Status|null
@@ -109,9 +109,9 @@ public function clearEncryptionStatus()
     }
 
     /**
-     * Output only. If present, the status of a recent encrypt/decrypt call on underlying data
-     * for this database or backup. Regardless of status, data is always encrypted
-     * at rest.
+     * Output only. If present, the status of a recent encrypt/decrypt call on
+     * underlying data for this database or backup. Regardless of status, data is
+     * always encrypted at rest.
      *
      * Generated from protobuf field <code>.google.rpc.Status encryption_status = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
      * @param \Google\Rpc\Status $var
@@ -126,8 +126,8 @@ public function setEncryptionStatus($var)
     }
 
     /**
-     * Output only. A Cloud KMS key version that is being used to protect the database or
-     * backup.
+     * Output only. A Cloud KMS key version that is being used to protect the
+     * database or backup.
      *
      * Generated from protobuf field <code>string kms_key_version = 2 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.resource_reference) = {</code>
      * @return string
@@ -138,8 +138,8 @@ public function getKmsKeyVersion()
     }
 
     /**
-     * Output only. A Cloud KMS key version that is being used to protect the database or
-     * backup.
+     * Output only. A Cloud KMS key version that is being used to protect the
+     * database or backup.
      *
      * Generated from protobuf field <code>string kms_key_version = 2 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.resource_reference) = {</code>
      * @param string $var
diff --git a/Spanner/src/Admin/Database/V1/Gapic/DatabaseAdminGapicClient.php b/Spanner/src/Admin/Database/V1/Gapic/DatabaseAdminGapicClient.php
index 416d4bfaf0bf..228f9323bbbc 100644
--- a/Spanner/src/Admin/Database/V1/Gapic/DatabaseAdminGapicClient.php
+++ b/Spanner/src/Admin/Database/V1/Gapic/DatabaseAdminGapicClient.php
@@ -87,7 +87,7 @@
  * The Cloud Spanner Database Admin API can be used to:
  * * create, drop, and list databases
  * * update the schema of pre-existing databases
- * * create, delete and list backups for a database
+ * * create, delete, copy and list backups for a database
  * * restore a database from an existing backup
  *
  * This class provides the ability to make remote calls to the backing service through method
@@ -539,9 +539,10 @@ public function __construct(array $options = [])
      * The [metadata][google.longrunning.Operation.metadata] field type is
      * [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata].
      * The [response][google.longrunning.Operation.response] field type is
-     * [Backup][google.spanner.admin.database.v1.Backup], if successful. Cancelling the returned operation will stop the
-     * copying and delete the backup.
-     * Concurrent CopyBackup requests can run on the same source backup.
+     * [Backup][google.spanner.admin.database.v1.Backup], if successful.
+     * Cancelling the returned operation will stop the copying and delete the
+     * destination backup. Concurrent CopyBackup requests can run on the same
+     * source backup.
      *
      * Sample code:
      * ```
@@ -582,8 +583,8 @@ public function __construct(array $options = [])
      * }
      * ```
      *
-     * @param string    $parent       Required. The name of the destination instance that will contain the backup copy.
-     *                                Values are of the form: `projects/<project>/instances/<instance>`.
+     * @param string    $parent       Required. The name of the destination instance that will contain the backup
+     *                                copy. Values are of the form: `projects/<project>/instances/<instance>`.
      * @param string    $backupId     Required. The id of the backup copy.
      *                                The `backup_id` appended to `parent` forms the full backup_uri of the form
      *                                `projects/<project>/instances/<instance>/backups/<backup>`.
@@ -602,11 +603,11 @@ public function __construct(array $options = [])
      *     Optional.
      *
      *     @type CopyBackupEncryptionConfig $encryptionConfig
-     *           Optional. The encryption configuration used to encrypt the backup. If this field is
-     *           not specified, the backup will use the same
-     *           encryption configuration as the source backup by default, namely
-     *           [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type] =
-     *           `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
+     *           Optional. The encryption configuration used to encrypt the backup. If this
+     *           field is not specified, the backup will use the same encryption
+     *           configuration as the source backup by default, namely
+     *           [encryption_type][google.spanner.admin.database.v1.CopyBackupEncryptionConfig.encryption_type]
+     *           = `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
      *     @type RetrySettings|array $retrySettings
      *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
      *           associative array of retry settings parameters. See the documentation on
@@ -656,12 +657,12 @@ public function copyBackup(
      * `projects/<project>/instances/<instance>/backups/<backup>/operations/<operation_id>`
      * and can be used to track creation of the backup. The
      * [metadata][google.longrunning.Operation.metadata] field type is
-     * [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata]. The
-     * [response][google.longrunning.Operation.response] field type is
-     * [Backup][google.spanner.admin.database.v1.Backup], if successful. Cancelling the returned operation will stop the
-     * creation and delete the backup.
-     * There can be only one pending backup creation per database. Backup creation
-     * of different databases can run concurrently.
+     * [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
+     * The [response][google.longrunning.Operation.response] field type is
+     * [Backup][google.spanner.admin.database.v1.Backup], if successful.
+     * Cancelling the returned operation will stop the creation and delete the
+     * backup. There can be only one pending backup creation per database. Backup
+     * creation of different databases can run concurrently.
      *
      * Sample code:
      * ```
@@ -715,11 +716,11 @@ public function copyBackup(
      *     Optional.
      *
      *     @type CreateBackupEncryptionConfig $encryptionConfig
-     *           Optional. The encryption configuration used to encrypt the backup. If this field is
-     *           not specified, the backup will use the same
-     *           encryption configuration as the database by default, namely
-     *           [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type] =
-     *           `USE_DATABASE_ENCRYPTION`.
+     *           Optional. The encryption configuration used to encrypt the backup. If this
+     *           field is not specified, the backup will use the same encryption
+     *           configuration as the database by default, namely
+     *           [encryption_type][google.spanner.admin.database.v1.CreateBackupEncryptionConfig.encryption_type]
+     *           = `USE_DATABASE_ENCRYPTION`.
      *     @type RetrySettings|array $retrySettings
      *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
      *           associative array of retry settings parameters. See the documentation on
@@ -766,8 +767,8 @@ public function createBackup(
      * have a name of the format `<database_name>/operations/<operation_id>` and
      * can be used to track preparation of the database. The
      * [metadata][google.longrunning.Operation.metadata] field type is
-     * [CreateDatabaseMetadata][google.spanner.admin.database.v1.CreateDatabaseMetadata]. The
-     * [response][google.longrunning.Operation.response] field type is
+     * [CreateDatabaseMetadata][google.spanner.admin.database.v1.CreateDatabaseMetadata].
+     * The [response][google.longrunning.Operation.response] field type is
      * [Database][google.spanner.admin.database.v1.Database], if successful.
      *
      * Sample code:
@@ -823,8 +824,8 @@ public function createBackup(
      *           statements execute atomically with the creation of the database:
      *           if there is an error in any statement, the database is not created.
      *     @type EncryptionConfig $encryptionConfig
-     *           Optional. The encryption configuration for the database. If this field is not
-     *           specified, Cloud Spanner will encrypt/decrypt all data at rest using
+     *           Optional. The encryption configuration for the database. If this field is
+     *           not specified, Cloud Spanner will encrypt/decrypt all data at rest using
      *           Google default encryption.
      *     @type int $databaseDialect
      *           Optional. The dialect of the Cloud Spanner Database.
@@ -896,7 +897,8 @@ public function createDatabase(
     }
 
     /**
-     * Deletes a pending or completed [Backup][google.spanner.admin.database.v1.Backup].
+     * Deletes a pending or completed
+     * [Backup][google.spanner.admin.database.v1.Backup].
      *
      * Sample code:
      * ```
@@ -994,7 +996,8 @@ public function dropDatabase($database, array $optionalArgs = [])
     }
 
     /**
-     * Gets metadata on a pending or completed [Backup][google.spanner.admin.database.v1.Backup].
+     * Gets metadata on a pending or completed
+     * [Backup][google.spanner.admin.database.v1.Backup].
      *
      * Sample code:
      * ```
@@ -1262,7 +1265,9 @@ public function getIamPolicy($resource, array $optionalArgs = [])
      *           * `name` - The name of the long-running operation
      *           * `done` - False if the operation is in progress, else true.
      *           * `metadata.&#64;type` - the type of metadata. For example, the type string
-     *           for [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata] is
+     *           for
+     *           [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata]
+     *           is
      *           `type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata`.
      *           * `metadata.<field_name>` - any field in metadata.value.
      *           `metadata.&#64;type` must be specified first if filtering on metadata
@@ -1280,14 +1285,15 @@ public function getIamPolicy($resource, array $optionalArgs = [])
      *           * `done:true` - The operation is complete.
      *           * `(metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
      *           `metadata.database:prod` - Returns operations where:
-     *           * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
-     *           * The database the backup was taken from has a name containing the
-     *           string "prod".
+     *           * The operation's metadata type is
+     *           [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
+     *           * The source database name of backup contains the string "prod".
      *           * `(metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
      *           `(metadata.name:howl) AND` \
      *           `(metadata.progress.start_time < \"2018-03-28T14:50:00Z\") AND` \
      *           `(error:*)` - Returns operations where:
-     *           * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
+     *           * The operation's metadata type is
+     *           [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
      *           * The backup name contains the string "howl".
      *           * The operation started before 2018-03-28T14:50:00Z.
      *           * The operation resulted in an error.
@@ -1295,9 +1301,9 @@ public function getIamPolicy($resource, array $optionalArgs = [])
      *           `(metadata.source_backup:test) AND` \
      *           `(metadata.progress.start_time < \"2022-01-18T14:50:00Z\") AND` \
      *           `(error:*)` - Returns operations where:
-     *           * The operation's metadata type is [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata].
-     *           * The source backup of the copied backup name contains the string
-     *           "test".
+     *           * The operation's metadata type is
+     *           [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata].
+     *           * The source backup name contains the string "test".
      *           * The operation started before 2022-01-18T14:50:00Z.
      *           * The operation resulted in an error.
      *           * `((metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
@@ -1307,12 +1313,13 @@ public function getIamPolicy($resource, array $optionalArgs = [])
      *           `(metadata.source_backup:test_bkp)) AND` \
      *           `(error:*)` - Returns operations where:
      *           * The operation's metadata matches either of criteria:
-     *           * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata] AND the
-     *           database the backup was taken from has name containing string
+     *           * The operation's metadata type is
+     *           [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata]
+     *           AND the source database name of the backup contains the string
      *           "test_db"
-     *           * The operation's metadata type is [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata] AND the
-     *           backup the backup was copied from has name containing string
-     *           "test_bkp"
+     *           * The operation's metadata type is
+     *           [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata]
+     *           AND the source backup name contains the string "test_bkp"
      *           * The operation resulted in an error.
      *     @type int $pageSize
      *           The maximum number of resources contained in the underlying API
@@ -1407,7 +1414,9 @@ public function listBackupOperations($parent, array $optionalArgs = [])
      *           must be one of: `<`, `>`, `<=`, `>=`, `!=`, `=`, or `:`.
      *           Colon `:` is the contains operator. Filter rules are not case sensitive.
      *
-     *           The following fields in the [Backup][google.spanner.admin.database.v1.Backup] are eligible for filtering:
+     *           The following fields in the
+     *           [Backup][google.spanner.admin.database.v1.Backup] are eligible for
+     *           filtering:
      *
      *           * `name`
      *           * `database`
@@ -1538,7 +1547,9 @@ public function listBackups($parent, array $optionalArgs = [])
      *           * `name` - The name of the long-running operation
      *           * `done` - False if the operation is in progress, else true.
      *           * `metadata.&#64;type` - the type of metadata. For example, the type string
-     *           for [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata] is
+     *           for
+     *           [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata]
+     *           is
      *           `type.googleapis.com/google.spanner.admin.database.v1.RestoreDatabaseMetadata`.
      *           * `metadata.<field_name>` - any field in metadata.value.
      *           `metadata.&#64;type` must be specified first, if filtering on metadata
@@ -1560,7 +1571,8 @@ public function listBackups($parent, array $optionalArgs = [])
      *           `(metadata.name:restored_howl) AND` \
      *           `(metadata.progress.start_time < \"2018-03-28T14:50:00Z\") AND` \
      *           `(error:*)` - Return operations where:
-     *           * The operation's metadata type is [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata].
+     *           * The operation's metadata type is
+     *           [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata].
      *           * The database is restored from a backup.
      *           * The backup name contains "backup_howl".
      *           * The restored database's name contains "restored_howl".
@@ -1645,7 +1657,7 @@ public function listDatabaseOperations($parent, array $optionalArgs = [])
      *
      * @param string $parent       Required. The database whose roles should be listed.
      *                             Values are of the form
-     *                             `projects/<project>/instances/<instance>/databases/<database>/databaseRoles`.
+     *                             `projects/<project>/instances/<instance>/databases/<database>`.
      * @param array  $optionalArgs {
      *     Optional.
      *
@@ -1846,12 +1858,12 @@ public function listDatabases($parent, array $optionalArgs = [])
      *           Name of the backup from which to restore.  Values are of the form
      *           `projects/<project>/instances/<instance>/backups/<backup>`.
      *     @type RestoreDatabaseEncryptionConfig $encryptionConfig
-     *           Optional. An encryption configuration describing the encryption type and key
-     *           resources in Cloud KMS used to encrypt/decrypt the database to restore to.
-     *           If this field is not specified, the restored database will use
-     *           the same encryption configuration as the backup by default, namely
-     *           [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type] =
-     *           `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
+     *           Optional. An encryption configuration describing the encryption type and
+     *           key resources in Cloud KMS used to encrypt/decrypt the database to restore
+     *           to. If this field is not specified, the restored database will use the same
+     *           encryption configuration as the backup by default, namely
+     *           [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type]
+     *           = `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
      *     @type RetrySettings|array $retrySettings
      *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
      *           associative array of retry settings parameters. See the documentation on
@@ -2033,7 +2045,8 @@ public function testIamPermissions(
     }
 
     /**
-     * Updates a pending or completed [Backup][google.spanner.admin.database.v1.Backup].
+     * Updates a pending or completed
+     * [Backup][google.spanner.admin.database.v1.Backup].
      *
      * Sample code:
      * ```
@@ -2214,7 +2227,8 @@ public function updateDatabase(
      * the format `<database_name>/operations/<operation_id>` and can be used to
      * track execution of the schema change(s). The
      * [metadata][google.longrunning.Operation.metadata] field type is
-     * [UpdateDatabaseDdlMetadata][google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata].  The operation has no response.
+     * [UpdateDatabaseDdlMetadata][google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata].
+     * The operation has no response.
      *
      * Sample code:
      * ```
@@ -2264,18 +2278,20 @@ public function updateDatabase(
      *
      *           Specifying an explicit operation ID simplifies determining
      *           whether the statements were executed in the event that the
-     *           [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl] call is replayed,
-     *           or the return value is otherwise lost: the [database][google.spanner.admin.database.v1.UpdateDatabaseDdlRequest.database] and
-     *           `operation_id` fields can be combined to form the
+     *           [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]
+     *           call is replayed, or the return value is otherwise lost: the
+     *           [database][google.spanner.admin.database.v1.UpdateDatabaseDdlRequest.database]
+     *           and `operation_id` fields can be combined to form the
      *           [name][google.longrunning.Operation.name] of the resulting
-     *           [longrunning.Operation][google.longrunning.Operation]: `<database>/operations/<operation_id>`.
+     *           [longrunning.Operation][google.longrunning.Operation]:
+     *           `<database>/operations/<operation_id>`.
      *
      *           `operation_id` should be unique within the database, and must be
      *           a valid identifier: `[a-z][a-z0-9_]*`. Note that
      *           automatically-generated operation IDs always begin with an
      *           underscore. If the named operation already exists,
-     *           [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl] returns
-     *           `ALREADY_EXISTS`.
+     *           [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]
+     *           returns `ALREADY_EXISTS`.
      *     @type string $protoDescriptors
      *           Optional. Proto descriptors used by CREATE/ALTER PROTO BUNDLE statements.
      *           Contains a protobuf-serialized
diff --git a/Spanner/src/Admin/Database/V1/GetBackupRequest.php b/Spanner/src/Admin/Database/V1/GetBackupRequest.php
index 8d777673ba6e..8023dc513a4d 100644
--- a/Spanner/src/Admin/Database/V1/GetBackupRequest.php
+++ b/Spanner/src/Admin/Database/V1/GetBackupRequest.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The request for [GetBackup][google.spanner.admin.database.v1.DatabaseAdmin.GetBackup].
+ * The request for
+ * [GetBackup][google.spanner.admin.database.v1.DatabaseAdmin.GetBackup].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.GetBackupRequest</code>
  */
diff --git a/Spanner/src/Admin/Database/V1/GetDatabaseDdlRequest.php b/Spanner/src/Admin/Database/V1/GetDatabaseDdlRequest.php
index 9a1e4fc2a4d2..746e1e6d300f 100644
--- a/Spanner/src/Admin/Database/V1/GetDatabaseDdlRequest.php
+++ b/Spanner/src/Admin/Database/V1/GetDatabaseDdlRequest.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The request for [GetDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.GetDatabaseDdl].
+ * The request for
+ * [GetDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.GetDatabaseDdl].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.GetDatabaseDdlRequest</code>
  */
diff --git a/Spanner/src/Admin/Database/V1/GetDatabaseDdlResponse.php b/Spanner/src/Admin/Database/V1/GetDatabaseDdlResponse.php
index 6e51152a8b3d..fc346e69229d 100644
--- a/Spanner/src/Admin/Database/V1/GetDatabaseDdlResponse.php
+++ b/Spanner/src/Admin/Database/V1/GetDatabaseDdlResponse.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The response for [GetDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.GetDatabaseDdl].
+ * The response for
+ * [GetDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.GetDatabaseDdl].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.GetDatabaseDdlResponse</code>
  */
diff --git a/Spanner/src/Admin/Database/V1/GetDatabaseRequest.php b/Spanner/src/Admin/Database/V1/GetDatabaseRequest.php
index b7054b36a37b..dd3f68a8fa17 100644
--- a/Spanner/src/Admin/Database/V1/GetDatabaseRequest.php
+++ b/Spanner/src/Admin/Database/V1/GetDatabaseRequest.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The request for [GetDatabase][google.spanner.admin.database.v1.DatabaseAdmin.GetDatabase].
+ * The request for
+ * [GetDatabase][google.spanner.admin.database.v1.DatabaseAdmin.GetDatabase].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.GetDatabaseRequest</code>
  */
diff --git a/Spanner/src/Admin/Database/V1/ListBackupOperationsRequest.php b/Spanner/src/Admin/Database/V1/ListBackupOperationsRequest.php
index d0e40c4bb0ed..5c50db837408 100644
--- a/Spanner/src/Admin/Database/V1/ListBackupOperationsRequest.php
+++ b/Spanner/src/Admin/Database/V1/ListBackupOperationsRequest.php
@@ -35,7 +35,9 @@ class ListBackupOperationsRequest extends \Google\Protobuf\Internal\Message
      *   * `name` - The name of the long-running operation
      *   * `done` - False if the operation is in progress, else true.
      *   * `metadata.&#64;type` - the type of metadata. For example, the type string
-     *      for [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata] is
+     *      for
+     *      [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata]
+     *      is
      *      `type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata`.
      *   * `metadata.<field_name>` - any field in metadata.value.
      *      `metadata.&#64;type` must be specified first if filtering on metadata
@@ -50,14 +52,15 @@ class ListBackupOperationsRequest extends \Google\Protobuf\Internal\Message
      *   * `done:true` - The operation is complete.
      *   * `(metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
      *      `metadata.database:prod` - Returns operations where:
-     *      * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
-     *      * The database the backup was taken from has a name containing the
-     *      string "prod".
+     *      * The operation's metadata type is
+     *      [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
+     *      * The source database name of backup contains the string "prod".
      *   * `(metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
      *     `(metadata.name:howl) AND` \
      *     `(metadata.progress.start_time < \"2018-03-28T14:50:00Z\") AND` \
      *     `(error:*)` - Returns operations where:
-     *     * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
+     *     * The operation's metadata type is
+     *     [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
      *     * The backup name contains the string "howl".
      *     * The operation started before 2018-03-28T14:50:00Z.
      *     * The operation resulted in an error.
@@ -65,9 +68,9 @@ class ListBackupOperationsRequest extends \Google\Protobuf\Internal\Message
      *     `(metadata.source_backup:test) AND` \
      *     `(metadata.progress.start_time < \"2022-01-18T14:50:00Z\") AND` \
      *     `(error:*)` - Returns operations where:
-     *     * The operation's metadata type is [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata].
-     *     * The source backup of the copied backup name contains the string
-     *     "test".
+     *     * The operation's metadata type is
+     *     [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata].
+     *     * The source backup name contains the string "test".
      *     * The operation started before 2022-01-18T14:50:00Z.
      *     * The operation resulted in an error.
      *   * `((metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
@@ -77,12 +80,13 @@ class ListBackupOperationsRequest extends \Google\Protobuf\Internal\Message
      *     `(metadata.source_backup:test_bkp)) AND` \
      *     `(error:*)` - Returns operations where:
      *     * The operation's metadata matches either of criteria:
-     *       * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata] AND the
-     *       database the backup was taken from has name containing string
+     *       * The operation's metadata type is
+     *       [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata]
+     *       AND the source database name of the backup contains the string
      *       "test_db"
-     *       * The operation's metadata type is [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata] AND the
-     *       backup the backup was copied from has name containing string
-     *       "test_bkp"
+     *       * The operation's metadata type is
+     *       [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata]
+     *       AND the source backup name contains the string "test_bkp"
      *     * The operation resulted in an error.
      *
      * Generated from protobuf field <code>string filter = 2;</code>
@@ -98,8 +102,9 @@ class ListBackupOperationsRequest extends \Google\Protobuf\Internal\Message
     /**
      * If non-empty, `page_token` should contain a
      * [next_page_token][google.spanner.admin.database.v1.ListBackupOperationsResponse.next_page_token]
-     * from a previous [ListBackupOperationsResponse][google.spanner.admin.database.v1.ListBackupOperationsResponse] to the
-     * same `parent` and with the same `filter`.
+     * from a previous
+     * [ListBackupOperationsResponse][google.spanner.admin.database.v1.ListBackupOperationsResponse]
+     * to the same `parent` and with the same `filter`.
      *
      * Generated from protobuf field <code>string page_token = 4;</code>
      */
@@ -141,7 +146,9 @@ public static function build(string $parent): self
      *             * `name` - The name of the long-running operation
      *             * `done` - False if the operation is in progress, else true.
      *             * `metadata.&#64;type` - the type of metadata. For example, the type string
-     *                for [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata] is
+     *                for
+     *                [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata]
+     *                is
      *                `type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata`.
      *             * `metadata.<field_name>` - any field in metadata.value.
      *                `metadata.&#64;type` must be specified first if filtering on metadata
@@ -156,14 +163,15 @@ public static function build(string $parent): self
      *             * `done:true` - The operation is complete.
      *             * `(metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
      *                `metadata.database:prod` - Returns operations where:
-     *                * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
-     *                * The database the backup was taken from has a name containing the
-     *                string "prod".
+     *                * The operation's metadata type is
+     *                [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
+     *                * The source database name of backup contains the string "prod".
      *             * `(metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
      *               `(metadata.name:howl) AND` \
      *               `(metadata.progress.start_time < \"2018-03-28T14:50:00Z\") AND` \
      *               `(error:*)` - Returns operations where:
-     *               * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
+     *               * The operation's metadata type is
+     *               [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
      *               * The backup name contains the string "howl".
      *               * The operation started before 2018-03-28T14:50:00Z.
      *               * The operation resulted in an error.
@@ -171,9 +179,9 @@ public static function build(string $parent): self
      *               `(metadata.source_backup:test) AND` \
      *               `(metadata.progress.start_time < \"2022-01-18T14:50:00Z\") AND` \
      *               `(error:*)` - Returns operations where:
-     *               * The operation's metadata type is [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata].
-     *               * The source backup of the copied backup name contains the string
-     *               "test".
+     *               * The operation's metadata type is
+     *               [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata].
+     *               * The source backup name contains the string "test".
      *               * The operation started before 2022-01-18T14:50:00Z.
      *               * The operation resulted in an error.
      *             * `((metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
@@ -183,12 +191,13 @@ public static function build(string $parent): self
      *               `(metadata.source_backup:test_bkp)) AND` \
      *               `(error:*)` - Returns operations where:
      *               * The operation's metadata matches either of criteria:
-     *                 * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata] AND the
-     *                 database the backup was taken from has name containing string
+     *                 * The operation's metadata type is
+     *                 [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata]
+     *                 AND the source database name of the backup contains the string
      *                 "test_db"
-     *                 * The operation's metadata type is [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata] AND the
-     *                 backup the backup was copied from has name containing string
-     *                 "test_bkp"
+     *                 * The operation's metadata type is
+     *                 [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata]
+     *                 AND the source backup name contains the string "test_bkp"
      *               * The operation resulted in an error.
      *     @type int $page_size
      *           Number of operations to be returned in the response. If 0 or
@@ -196,8 +205,9 @@ public static function build(string $parent): self
      *     @type string $page_token
      *           If non-empty, `page_token` should contain a
      *           [next_page_token][google.spanner.admin.database.v1.ListBackupOperationsResponse.next_page_token]
-     *           from a previous [ListBackupOperationsResponse][google.spanner.admin.database.v1.ListBackupOperationsResponse] to the
-     *           same `parent` and with the same `filter`.
+     *           from a previous
+     *           [ListBackupOperationsResponse][google.spanner.admin.database.v1.ListBackupOperationsResponse]
+     *           to the same `parent` and with the same `filter`.
      * }
      */
     public function __construct($data = NULL) {
@@ -245,7 +255,9 @@ public function setParent($var)
      *   * `name` - The name of the long-running operation
      *   * `done` - False if the operation is in progress, else true.
      *   * `metadata.&#64;type` - the type of metadata. For example, the type string
-     *      for [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata] is
+     *      for
+     *      [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata]
+     *      is
      *      `type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata`.
      *   * `metadata.<field_name>` - any field in metadata.value.
      *      `metadata.&#64;type` must be specified first if filtering on metadata
@@ -260,14 +272,15 @@ public function setParent($var)
      *   * `done:true` - The operation is complete.
      *   * `(metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
      *      `metadata.database:prod` - Returns operations where:
-     *      * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
-     *      * The database the backup was taken from has a name containing the
-     *      string "prod".
+     *      * The operation's metadata type is
+     *      [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
+     *      * The source database name of backup contains the string "prod".
      *   * `(metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
      *     `(metadata.name:howl) AND` \
      *     `(metadata.progress.start_time < \"2018-03-28T14:50:00Z\") AND` \
      *     `(error:*)` - Returns operations where:
-     *     * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
+     *     * The operation's metadata type is
+     *     [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
      *     * The backup name contains the string "howl".
      *     * The operation started before 2018-03-28T14:50:00Z.
      *     * The operation resulted in an error.
@@ -275,9 +288,9 @@ public function setParent($var)
      *     `(metadata.source_backup:test) AND` \
      *     `(metadata.progress.start_time < \"2022-01-18T14:50:00Z\") AND` \
      *     `(error:*)` - Returns operations where:
-     *     * The operation's metadata type is [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata].
-     *     * The source backup of the copied backup name contains the string
-     *     "test".
+     *     * The operation's metadata type is
+     *     [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata].
+     *     * The source backup name contains the string "test".
      *     * The operation started before 2022-01-18T14:50:00Z.
      *     * The operation resulted in an error.
      *   * `((metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
@@ -287,12 +300,13 @@ public function setParent($var)
      *     `(metadata.source_backup:test_bkp)) AND` \
      *     `(error:*)` - Returns operations where:
      *     * The operation's metadata matches either of criteria:
-     *       * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata] AND the
-     *       database the backup was taken from has name containing string
+     *       * The operation's metadata type is
+     *       [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata]
+     *       AND the source database name of the backup contains the string
      *       "test_db"
-     *       * The operation's metadata type is [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata] AND the
-     *       backup the backup was copied from has name containing string
-     *       "test_bkp"
+     *       * The operation's metadata type is
+     *       [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata]
+     *       AND the source backup name contains the string "test_bkp"
      *     * The operation resulted in an error.
      *
      * Generated from protobuf field <code>string filter = 2;</code>
@@ -315,7 +329,9 @@ public function getFilter()
      *   * `name` - The name of the long-running operation
      *   * `done` - False if the operation is in progress, else true.
      *   * `metadata.&#64;type` - the type of metadata. For example, the type string
-     *      for [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata] is
+     *      for
+     *      [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata]
+     *      is
      *      `type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata`.
      *   * `metadata.<field_name>` - any field in metadata.value.
      *      `metadata.&#64;type` must be specified first if filtering on metadata
@@ -330,14 +346,15 @@ public function getFilter()
      *   * `done:true` - The operation is complete.
      *   * `(metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
      *      `metadata.database:prod` - Returns operations where:
-     *      * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
-     *      * The database the backup was taken from has a name containing the
-     *      string "prod".
+     *      * The operation's metadata type is
+     *      [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
+     *      * The source database name of backup contains the string "prod".
      *   * `(metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
      *     `(metadata.name:howl) AND` \
      *     `(metadata.progress.start_time < \"2018-03-28T14:50:00Z\") AND` \
      *     `(error:*)` - Returns operations where:
-     *     * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
+     *     * The operation's metadata type is
+     *     [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata].
      *     * The backup name contains the string "howl".
      *     * The operation started before 2018-03-28T14:50:00Z.
      *     * The operation resulted in an error.
@@ -345,9 +362,9 @@ public function getFilter()
      *     `(metadata.source_backup:test) AND` \
      *     `(metadata.progress.start_time < \"2022-01-18T14:50:00Z\") AND` \
      *     `(error:*)` - Returns operations where:
-     *     * The operation's metadata type is [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata].
-     *     * The source backup of the copied backup name contains the string
-     *     "test".
+     *     * The operation's metadata type is
+     *     [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata].
+     *     * The source backup name contains the string "test".
      *     * The operation started before 2022-01-18T14:50:00Z.
      *     * The operation resulted in an error.
      *   * `((metadata.&#64;type=type.googleapis.com/google.spanner.admin.database.v1.CreateBackupMetadata) AND` \
@@ -357,12 +374,13 @@ public function getFilter()
      *     `(metadata.source_backup:test_bkp)) AND` \
      *     `(error:*)` - Returns operations where:
      *     * The operation's metadata matches either of criteria:
-     *       * The operation's metadata type is [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata] AND the
-     *       database the backup was taken from has name containing string
+     *       * The operation's metadata type is
+     *       [CreateBackupMetadata][google.spanner.admin.database.v1.CreateBackupMetadata]
+     *       AND the source database name of the backup contains the string
      *       "test_db"
-     *       * The operation's metadata type is [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata] AND the
-     *       backup the backup was copied from has name containing string
-     *       "test_bkp"
+     *       * The operation's metadata type is
+     *       [CopyBackupMetadata][google.spanner.admin.database.v1.CopyBackupMetadata]
+     *       AND the source backup name contains the string "test_bkp"
      *     * The operation resulted in an error.
      *
      * Generated from protobuf field <code>string filter = 2;</code>
@@ -408,8 +426,9 @@ public function setPageSize($var)
     /**
      * If non-empty, `page_token` should contain a
      * [next_page_token][google.spanner.admin.database.v1.ListBackupOperationsResponse.next_page_token]
-     * from a previous [ListBackupOperationsResponse][google.spanner.admin.database.v1.ListBackupOperationsResponse] to the
-     * same `parent` and with the same `filter`.
+     * from a previous
+     * [ListBackupOperationsResponse][google.spanner.admin.database.v1.ListBackupOperationsResponse]
+     * to the same `parent` and with the same `filter`.
      *
      * Generated from protobuf field <code>string page_token = 4;</code>
      * @return string
@@ -422,8 +441,9 @@ public function getPageToken()
     /**
      * If non-empty, `page_token` should contain a
      * [next_page_token][google.spanner.admin.database.v1.ListBackupOperationsResponse.next_page_token]
-     * from a previous [ListBackupOperationsResponse][google.spanner.admin.database.v1.ListBackupOperationsResponse] to the
-     * same `parent` and with the same `filter`.
+     * from a previous
+     * [ListBackupOperationsResponse][google.spanner.admin.database.v1.ListBackupOperationsResponse]
+     * to the same `parent` and with the same `filter`.
      *
      * Generated from protobuf field <code>string page_token = 4;</code>
      * @param string $var
diff --git a/Spanner/src/Admin/Database/V1/ListBackupsRequest.php b/Spanner/src/Admin/Database/V1/ListBackupsRequest.php
index bb093fded002..b4238eb7f032 100644
--- a/Spanner/src/Admin/Database/V1/ListBackupsRequest.php
+++ b/Spanner/src/Admin/Database/V1/ListBackupsRequest.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The request for [ListBackups][google.spanner.admin.database.v1.DatabaseAdmin.ListBackups].
+ * The request for
+ * [ListBackups][google.spanner.admin.database.v1.DatabaseAdmin.ListBackups].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.ListBackupsRequest</code>
  */
@@ -29,7 +30,9 @@ class ListBackupsRequest extends \Google\Protobuf\Internal\Message
      * The value must be a string, a number, or a boolean. The comparison operator
      * must be one of: `<`, `>`, `<=`, `>=`, `!=`, `=`, or `:`.
      * Colon `:` is the contains operator. Filter rules are not case sensitive.
-     * The following fields in the [Backup][google.spanner.admin.database.v1.Backup] are eligible for filtering:
+     * The following fields in the
+     * [Backup][google.spanner.admin.database.v1.Backup] are eligible for
+     * filtering:
      *   * `name`
      *   * `database`
      *   * `state`
@@ -65,9 +68,10 @@ class ListBackupsRequest extends \Google\Protobuf\Internal\Message
     private $page_size = 0;
     /**
      * If non-empty, `page_token` should contain a
-     * [next_page_token][google.spanner.admin.database.v1.ListBackupsResponse.next_page_token] from a
-     * previous [ListBackupsResponse][google.spanner.admin.database.v1.ListBackupsResponse] to the same `parent` and with the same
-     * `filter`.
+     * [next_page_token][google.spanner.admin.database.v1.ListBackupsResponse.next_page_token]
+     * from a previous
+     * [ListBackupsResponse][google.spanner.admin.database.v1.ListBackupsResponse]
+     * to the same `parent` and with the same `filter`.
      *
      * Generated from protobuf field <code>string page_token = 4;</code>
      */
@@ -104,7 +108,9 @@ public static function build(string $parent): self
      *           The value must be a string, a number, or a boolean. The comparison operator
      *           must be one of: `<`, `>`, `<=`, `>=`, `!=`, `=`, or `:`.
      *           Colon `:` is the contains operator. Filter rules are not case sensitive.
-     *           The following fields in the [Backup][google.spanner.admin.database.v1.Backup] are eligible for filtering:
+     *           The following fields in the
+     *           [Backup][google.spanner.admin.database.v1.Backup] are eligible for
+     *           filtering:
      *             * `name`
      *             * `database`
      *             * `state`
@@ -132,9 +138,10 @@ public static function build(string $parent): self
      *           less, defaults to the server's maximum allowed page size.
      *     @type string $page_token
      *           If non-empty, `page_token` should contain a
-     *           [next_page_token][google.spanner.admin.database.v1.ListBackupsResponse.next_page_token] from a
-     *           previous [ListBackupsResponse][google.spanner.admin.database.v1.ListBackupsResponse] to the same `parent` and with the same
-     *           `filter`.
+     *           [next_page_token][google.spanner.admin.database.v1.ListBackupsResponse.next_page_token]
+     *           from a previous
+     *           [ListBackupsResponse][google.spanner.admin.database.v1.ListBackupsResponse]
+     *           to the same `parent` and with the same `filter`.
      * }
      */
     public function __construct($data = NULL) {
@@ -177,7 +184,9 @@ public function setParent($var)
      * The value must be a string, a number, or a boolean. The comparison operator
      * must be one of: `<`, `>`, `<=`, `>=`, `!=`, `=`, or `:`.
      * Colon `:` is the contains operator. Filter rules are not case sensitive.
-     * The following fields in the [Backup][google.spanner.admin.database.v1.Backup] are eligible for filtering:
+     * The following fields in the
+     * [Backup][google.spanner.admin.database.v1.Backup] are eligible for
+     * filtering:
      *   * `name`
      *   * `database`
      *   * `state`
@@ -216,7 +225,9 @@ public function getFilter()
      * The value must be a string, a number, or a boolean. The comparison operator
      * must be one of: `<`, `>`, `<=`, `>=`, `!=`, `=`, or `:`.
      * Colon `:` is the contains operator. Filter rules are not case sensitive.
-     * The following fields in the [Backup][google.spanner.admin.database.v1.Backup] are eligible for filtering:
+     * The following fields in the
+     * [Backup][google.spanner.admin.database.v1.Backup] are eligible for
+     * filtering:
      *   * `name`
      *   * `database`
      *   * `state`
@@ -282,9 +293,10 @@ public function setPageSize($var)
 
     /**
      * If non-empty, `page_token` should contain a
-     * [next_page_token][google.spanner.admin.database.v1.ListBackupsResponse.next_page_token] from a
-     * previous [ListBackupsResponse][google.spanner.admin.database.v1.ListBackupsResponse] to the same `parent` and with the same
-     * `filter`.
+     * [next_page_token][google.spanner.admin.database.v1.ListBackupsResponse.next_page_token]
+     * from a previous
+     * [ListBackupsResponse][google.spanner.admin.database.v1.ListBackupsResponse]
+     * to the same `parent` and with the same `filter`.
      *
      * Generated from protobuf field <code>string page_token = 4;</code>
      * @return string
@@ -296,9 +308,10 @@ public function getPageToken()
 
     /**
      * If non-empty, `page_token` should contain a
-     * [next_page_token][google.spanner.admin.database.v1.ListBackupsResponse.next_page_token] from a
-     * previous [ListBackupsResponse][google.spanner.admin.database.v1.ListBackupsResponse] to the same `parent` and with the same
-     * `filter`.
+     * [next_page_token][google.spanner.admin.database.v1.ListBackupsResponse.next_page_token]
+     * from a previous
+     * [ListBackupsResponse][google.spanner.admin.database.v1.ListBackupsResponse]
+     * to the same `parent` and with the same `filter`.
      *
      * Generated from protobuf field <code>string page_token = 4;</code>
      * @param string $var
diff --git a/Spanner/src/Admin/Database/V1/ListBackupsResponse.php b/Spanner/src/Admin/Database/V1/ListBackupsResponse.php
index e307154d409e..2e99679b56a5 100644
--- a/Spanner/src/Admin/Database/V1/ListBackupsResponse.php
+++ b/Spanner/src/Admin/Database/V1/ListBackupsResponse.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The response for [ListBackups][google.spanner.admin.database.v1.DatabaseAdmin.ListBackups].
+ * The response for
+ * [ListBackups][google.spanner.admin.database.v1.DatabaseAdmin.ListBackups].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.ListBackupsResponse</code>
  */
@@ -24,8 +25,8 @@ class ListBackupsResponse extends \Google\Protobuf\Internal\Message
     private $backups;
     /**
      * `next_page_token` can be sent in a subsequent
-     * [ListBackups][google.spanner.admin.database.v1.DatabaseAdmin.ListBackups] call to fetch more
-     * of the matching backups.
+     * [ListBackups][google.spanner.admin.database.v1.DatabaseAdmin.ListBackups]
+     * call to fetch more of the matching backups.
      *
      * Generated from protobuf field <code>string next_page_token = 2;</code>
      */
@@ -42,8 +43,8 @@ class ListBackupsResponse extends \Google\Protobuf\Internal\Message
      *           in descending order, starting from the most recent `create_time`.
      *     @type string $next_page_token
      *           `next_page_token` can be sent in a subsequent
-     *           [ListBackups][google.spanner.admin.database.v1.DatabaseAdmin.ListBackups] call to fetch more
-     *           of the matching backups.
+     *           [ListBackups][google.spanner.admin.database.v1.DatabaseAdmin.ListBackups]
+     *           call to fetch more of the matching backups.
      * }
      */
     public function __construct($data = NULL) {
@@ -81,8 +82,8 @@ public function setBackups($var)
 
     /**
      * `next_page_token` can be sent in a subsequent
-     * [ListBackups][google.spanner.admin.database.v1.DatabaseAdmin.ListBackups] call to fetch more
-     * of the matching backups.
+     * [ListBackups][google.spanner.admin.database.v1.DatabaseAdmin.ListBackups]
+     * call to fetch more of the matching backups.
      *
      * Generated from protobuf field <code>string next_page_token = 2;</code>
      * @return string
@@ -94,8 +95,8 @@ public function getNextPageToken()
 
     /**
      * `next_page_token` can be sent in a subsequent
-     * [ListBackups][google.spanner.admin.database.v1.DatabaseAdmin.ListBackups] call to fetch more
-     * of the matching backups.
+     * [ListBackups][google.spanner.admin.database.v1.DatabaseAdmin.ListBackups]
+     * call to fetch more of the matching backups.
      *
      * Generated from protobuf field <code>string next_page_token = 2;</code>
      * @param string $var
diff --git a/Spanner/src/Admin/Database/V1/ListDatabaseOperationsRequest.php b/Spanner/src/Admin/Database/V1/ListDatabaseOperationsRequest.php
index 41a82625cfe5..5061df0e46b2 100644
--- a/Spanner/src/Admin/Database/V1/ListDatabaseOperationsRequest.php
+++ b/Spanner/src/Admin/Database/V1/ListDatabaseOperationsRequest.php
@@ -35,7 +35,9 @@ class ListDatabaseOperationsRequest extends \Google\Protobuf\Internal\Message
      *   * `name` - The name of the long-running operation
      *   * `done` - False if the operation is in progress, else true.
      *   * `metadata.&#64;type` - the type of metadata. For example, the type string
-     *      for [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata] is
+     *      for
+     *      [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata]
+     *      is
      *      `type.googleapis.com/google.spanner.admin.database.v1.RestoreDatabaseMetadata`.
      *   * `metadata.<field_name>` - any field in metadata.value.
      *      `metadata.&#64;type` must be specified first, if filtering on metadata
@@ -54,7 +56,8 @@ class ListDatabaseOperationsRequest extends \Google\Protobuf\Internal\Message
      *     `(metadata.name:restored_howl) AND` \
      *     `(metadata.progress.start_time < \"2018-03-28T14:50:00Z\") AND` \
      *     `(error:*)` - Return operations where:
-     *     * The operation's metadata type is [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata].
+     *     * The operation's metadata type is
+     *     [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata].
      *     * The database is restored from a backup.
      *     * The backup name contains "backup_howl".
      *     * The restored database's name contains "restored_howl".
@@ -74,8 +77,9 @@ class ListDatabaseOperationsRequest extends \Google\Protobuf\Internal\Message
     /**
      * If non-empty, `page_token` should contain a
      * [next_page_token][google.spanner.admin.database.v1.ListDatabaseOperationsResponse.next_page_token]
-     * from a previous [ListDatabaseOperationsResponse][google.spanner.admin.database.v1.ListDatabaseOperationsResponse] to the
-     * same `parent` and with the same `filter`.
+     * from a previous
+     * [ListDatabaseOperationsResponse][google.spanner.admin.database.v1.ListDatabaseOperationsResponse]
+     * to the same `parent` and with the same `filter`.
      *
      * Generated from protobuf field <code>string page_token = 4;</code>
      */
@@ -117,7 +121,9 @@ public static function build(string $parent): self
      *             * `name` - The name of the long-running operation
      *             * `done` - False if the operation is in progress, else true.
      *             * `metadata.&#64;type` - the type of metadata. For example, the type string
-     *                for [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata] is
+     *                for
+     *                [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata]
+     *                is
      *                `type.googleapis.com/google.spanner.admin.database.v1.RestoreDatabaseMetadata`.
      *             * `metadata.<field_name>` - any field in metadata.value.
      *                `metadata.&#64;type` must be specified first, if filtering on metadata
@@ -136,7 +142,8 @@ public static function build(string $parent): self
      *               `(metadata.name:restored_howl) AND` \
      *               `(metadata.progress.start_time < \"2018-03-28T14:50:00Z\") AND` \
      *               `(error:*)` - Return operations where:
-     *               * The operation's metadata type is [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata].
+     *               * The operation's metadata type is
+     *               [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata].
      *               * The database is restored from a backup.
      *               * The backup name contains "backup_howl".
      *               * The restored database's name contains "restored_howl".
@@ -148,8 +155,9 @@ public static function build(string $parent): self
      *     @type string $page_token
      *           If non-empty, `page_token` should contain a
      *           [next_page_token][google.spanner.admin.database.v1.ListDatabaseOperationsResponse.next_page_token]
-     *           from a previous [ListDatabaseOperationsResponse][google.spanner.admin.database.v1.ListDatabaseOperationsResponse] to the
-     *           same `parent` and with the same `filter`.
+     *           from a previous
+     *           [ListDatabaseOperationsResponse][google.spanner.admin.database.v1.ListDatabaseOperationsResponse]
+     *           to the same `parent` and with the same `filter`.
      * }
      */
     public function __construct($data = NULL) {
@@ -197,7 +205,9 @@ public function setParent($var)
      *   * `name` - The name of the long-running operation
      *   * `done` - False if the operation is in progress, else true.
      *   * `metadata.&#64;type` - the type of metadata. For example, the type string
-     *      for [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata] is
+     *      for
+     *      [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata]
+     *      is
      *      `type.googleapis.com/google.spanner.admin.database.v1.RestoreDatabaseMetadata`.
      *   * `metadata.<field_name>` - any field in metadata.value.
      *      `metadata.&#64;type` must be specified first, if filtering on metadata
@@ -216,7 +226,8 @@ public function setParent($var)
      *     `(metadata.name:restored_howl) AND` \
      *     `(metadata.progress.start_time < \"2018-03-28T14:50:00Z\") AND` \
      *     `(error:*)` - Return operations where:
-     *     * The operation's metadata type is [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata].
+     *     * The operation's metadata type is
+     *     [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata].
      *     * The database is restored from a backup.
      *     * The backup name contains "backup_howl".
      *     * The restored database's name contains "restored_howl".
@@ -243,7 +254,9 @@ public function getFilter()
      *   * `name` - The name of the long-running operation
      *   * `done` - False if the operation is in progress, else true.
      *   * `metadata.&#64;type` - the type of metadata. For example, the type string
-     *      for [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata] is
+     *      for
+     *      [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata]
+     *      is
      *      `type.googleapis.com/google.spanner.admin.database.v1.RestoreDatabaseMetadata`.
      *   * `metadata.<field_name>` - any field in metadata.value.
      *      `metadata.&#64;type` must be specified first, if filtering on metadata
@@ -262,7 +275,8 @@ public function getFilter()
      *     `(metadata.name:restored_howl) AND` \
      *     `(metadata.progress.start_time < \"2018-03-28T14:50:00Z\") AND` \
      *     `(error:*)` - Return operations where:
-     *     * The operation's metadata type is [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata].
+     *     * The operation's metadata type is
+     *     [RestoreDatabaseMetadata][google.spanner.admin.database.v1.RestoreDatabaseMetadata].
      *     * The database is restored from a backup.
      *     * The backup name contains "backup_howl".
      *     * The restored database's name contains "restored_howl".
@@ -312,8 +326,9 @@ public function setPageSize($var)
     /**
      * If non-empty, `page_token` should contain a
      * [next_page_token][google.spanner.admin.database.v1.ListDatabaseOperationsResponse.next_page_token]
-     * from a previous [ListDatabaseOperationsResponse][google.spanner.admin.database.v1.ListDatabaseOperationsResponse] to the
-     * same `parent` and with the same `filter`.
+     * from a previous
+     * [ListDatabaseOperationsResponse][google.spanner.admin.database.v1.ListDatabaseOperationsResponse]
+     * to the same `parent` and with the same `filter`.
      *
      * Generated from protobuf field <code>string page_token = 4;</code>
      * @return string
@@ -326,8 +341,9 @@ public function getPageToken()
     /**
      * If non-empty, `page_token` should contain a
      * [next_page_token][google.spanner.admin.database.v1.ListDatabaseOperationsResponse.next_page_token]
-     * from a previous [ListDatabaseOperationsResponse][google.spanner.admin.database.v1.ListDatabaseOperationsResponse] to the
-     * same `parent` and with the same `filter`.
+     * from a previous
+     * [ListDatabaseOperationsResponse][google.spanner.admin.database.v1.ListDatabaseOperationsResponse]
+     * to the same `parent` and with the same `filter`.
      *
      * Generated from protobuf field <code>string page_token = 4;</code>
      * @param string $var
diff --git a/Spanner/src/Admin/Database/V1/ListDatabaseRolesRequest.php b/Spanner/src/Admin/Database/V1/ListDatabaseRolesRequest.php
index d638734389c3..d83ec6bf40c0 100644
--- a/Spanner/src/Admin/Database/V1/ListDatabaseRolesRequest.php
+++ b/Spanner/src/Admin/Database/V1/ListDatabaseRolesRequest.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The request for [ListDatabaseRoles][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabaseRoles].
+ * The request for
+ * [ListDatabaseRoles][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabaseRoles].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.ListDatabaseRolesRequest</code>
  */
@@ -18,7 +19,7 @@ class ListDatabaseRolesRequest extends \Google\Protobuf\Internal\Message
     /**
      * Required. The database whose roles should be listed.
      * Values are of the form
-     * `projects/<project>/instances/<instance>/databases/<database>/databaseRoles`.
+     * `projects/<project>/instances/<instance>/databases/<database>`.
      *
      * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
      */
@@ -32,8 +33,9 @@ class ListDatabaseRolesRequest extends \Google\Protobuf\Internal\Message
     private $page_size = 0;
     /**
      * If non-empty, `page_token` should contain a
-     * [next_page_token][google.spanner.admin.database.v1.ListDatabaseRolesResponse.next_page_token] from a
-     * previous [ListDatabaseRolesResponse][google.spanner.admin.database.v1.ListDatabaseRolesResponse].
+     * [next_page_token][google.spanner.admin.database.v1.ListDatabaseRolesResponse.next_page_token]
+     * from a previous
+     * [ListDatabaseRolesResponse][google.spanner.admin.database.v1.ListDatabaseRolesResponse].
      *
      * Generated from protobuf field <code>string page_token = 3;</code>
      */
@@ -42,7 +44,7 @@ class ListDatabaseRolesRequest extends \Google\Protobuf\Internal\Message
     /**
      * @param string $parent Required. The database whose roles should be listed.
      *                       Values are of the form
-     *                       `projects/<project>/instances/<instance>/databases/<database>/databaseRoles`. Please see
+     *                       `projects/<project>/instances/<instance>/databases/<database>`. Please see
      *                       {@see DatabaseAdminClient::databaseName()} for help formatting this field.
      *
      * @return \Google\Cloud\Spanner\Admin\Database\V1\ListDatabaseRolesRequest
@@ -64,14 +66,15 @@ public static function build(string $parent): self
      *     @type string $parent
      *           Required. The database whose roles should be listed.
      *           Values are of the form
-     *           `projects/<project>/instances/<instance>/databases/<database>/databaseRoles`.
+     *           `projects/<project>/instances/<instance>/databases/<database>`.
      *     @type int $page_size
      *           Number of database roles to be returned in the response. If 0 or less,
      *           defaults to the server's maximum allowed page size.
      *     @type string $page_token
      *           If non-empty, `page_token` should contain a
-     *           [next_page_token][google.spanner.admin.database.v1.ListDatabaseRolesResponse.next_page_token] from a
-     *           previous [ListDatabaseRolesResponse][google.spanner.admin.database.v1.ListDatabaseRolesResponse].
+     *           [next_page_token][google.spanner.admin.database.v1.ListDatabaseRolesResponse.next_page_token]
+     *           from a previous
+     *           [ListDatabaseRolesResponse][google.spanner.admin.database.v1.ListDatabaseRolesResponse].
      * }
      */
     public function __construct($data = NULL) {
@@ -82,7 +85,7 @@ public function __construct($data = NULL) {
     /**
      * Required. The database whose roles should be listed.
      * Values are of the form
-     * `projects/<project>/instances/<instance>/databases/<database>/databaseRoles`.
+     * `projects/<project>/instances/<instance>/databases/<database>`.
      *
      * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
      * @return string
@@ -95,7 +98,7 @@ public function getParent()
     /**
      * Required. The database whose roles should be listed.
      * Values are of the form
-     * `projects/<project>/instances/<instance>/databases/<database>/databaseRoles`.
+     * `projects/<project>/instances/<instance>/databases/<database>`.
      *
      * Generated from protobuf field <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = {</code>
      * @param string $var
@@ -139,8 +142,9 @@ public function setPageSize($var)
 
     /**
      * If non-empty, `page_token` should contain a
-     * [next_page_token][google.spanner.admin.database.v1.ListDatabaseRolesResponse.next_page_token] from a
-     * previous [ListDatabaseRolesResponse][google.spanner.admin.database.v1.ListDatabaseRolesResponse].
+     * [next_page_token][google.spanner.admin.database.v1.ListDatabaseRolesResponse.next_page_token]
+     * from a previous
+     * [ListDatabaseRolesResponse][google.spanner.admin.database.v1.ListDatabaseRolesResponse].
      *
      * Generated from protobuf field <code>string page_token = 3;</code>
      * @return string
@@ -152,8 +156,9 @@ public function getPageToken()
 
     /**
      * If non-empty, `page_token` should contain a
-     * [next_page_token][google.spanner.admin.database.v1.ListDatabaseRolesResponse.next_page_token] from a
-     * previous [ListDatabaseRolesResponse][google.spanner.admin.database.v1.ListDatabaseRolesResponse].
+     * [next_page_token][google.spanner.admin.database.v1.ListDatabaseRolesResponse.next_page_token]
+     * from a previous
+     * [ListDatabaseRolesResponse][google.spanner.admin.database.v1.ListDatabaseRolesResponse].
      *
      * Generated from protobuf field <code>string page_token = 3;</code>
      * @param string $var
diff --git a/Spanner/src/Admin/Database/V1/ListDatabaseRolesResponse.php b/Spanner/src/Admin/Database/V1/ListDatabaseRolesResponse.php
index 15927aee8752..fc36896517be 100644
--- a/Spanner/src/Admin/Database/V1/ListDatabaseRolesResponse.php
+++ b/Spanner/src/Admin/Database/V1/ListDatabaseRolesResponse.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The response for [ListDatabaseRoles][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabaseRoles].
+ * The response for
+ * [ListDatabaseRoles][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabaseRoles].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.ListDatabaseRolesResponse</code>
  */
diff --git a/Spanner/src/Admin/Database/V1/ListDatabasesRequest.php b/Spanner/src/Admin/Database/V1/ListDatabasesRequest.php
index 7b3f77bb02e1..919d73db0cbd 100644
--- a/Spanner/src/Admin/Database/V1/ListDatabasesRequest.php
+++ b/Spanner/src/Admin/Database/V1/ListDatabasesRequest.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The request for [ListDatabases][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabases].
+ * The request for
+ * [ListDatabases][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabases].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.ListDatabasesRequest</code>
  */
@@ -31,8 +32,9 @@ class ListDatabasesRequest extends \Google\Protobuf\Internal\Message
     private $page_size = 0;
     /**
      * If non-empty, `page_token` should contain a
-     * [next_page_token][google.spanner.admin.database.v1.ListDatabasesResponse.next_page_token] from a
-     * previous [ListDatabasesResponse][google.spanner.admin.database.v1.ListDatabasesResponse].
+     * [next_page_token][google.spanner.admin.database.v1.ListDatabasesResponse.next_page_token]
+     * from a previous
+     * [ListDatabasesResponse][google.spanner.admin.database.v1.ListDatabasesResponse].
      *
      * Generated from protobuf field <code>string page_token = 4;</code>
      */
@@ -67,8 +69,9 @@ public static function build(string $parent): self
      *           defaults to the server's maximum allowed page size.
      *     @type string $page_token
      *           If non-empty, `page_token` should contain a
-     *           [next_page_token][google.spanner.admin.database.v1.ListDatabasesResponse.next_page_token] from a
-     *           previous [ListDatabasesResponse][google.spanner.admin.database.v1.ListDatabasesResponse].
+     *           [next_page_token][google.spanner.admin.database.v1.ListDatabasesResponse.next_page_token]
+     *           from a previous
+     *           [ListDatabasesResponse][google.spanner.admin.database.v1.ListDatabasesResponse].
      * }
      */
     public function __construct($data = NULL) {
@@ -134,8 +137,9 @@ public function setPageSize($var)
 
     /**
      * If non-empty, `page_token` should contain a
-     * [next_page_token][google.spanner.admin.database.v1.ListDatabasesResponse.next_page_token] from a
-     * previous [ListDatabasesResponse][google.spanner.admin.database.v1.ListDatabasesResponse].
+     * [next_page_token][google.spanner.admin.database.v1.ListDatabasesResponse.next_page_token]
+     * from a previous
+     * [ListDatabasesResponse][google.spanner.admin.database.v1.ListDatabasesResponse].
      *
      * Generated from protobuf field <code>string page_token = 4;</code>
      * @return string
@@ -147,8 +151,9 @@ public function getPageToken()
 
     /**
      * If non-empty, `page_token` should contain a
-     * [next_page_token][google.spanner.admin.database.v1.ListDatabasesResponse.next_page_token] from a
-     * previous [ListDatabasesResponse][google.spanner.admin.database.v1.ListDatabasesResponse].
+     * [next_page_token][google.spanner.admin.database.v1.ListDatabasesResponse.next_page_token]
+     * from a previous
+     * [ListDatabasesResponse][google.spanner.admin.database.v1.ListDatabasesResponse].
      *
      * Generated from protobuf field <code>string page_token = 4;</code>
      * @param string $var
diff --git a/Spanner/src/Admin/Database/V1/ListDatabasesResponse.php b/Spanner/src/Admin/Database/V1/ListDatabasesResponse.php
index d4074a818114..c167bf56afd0 100644
--- a/Spanner/src/Admin/Database/V1/ListDatabasesResponse.php
+++ b/Spanner/src/Admin/Database/V1/ListDatabasesResponse.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The response for [ListDatabases][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabases].
+ * The response for
+ * [ListDatabases][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabases].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.ListDatabasesResponse</code>
  */
@@ -23,8 +24,8 @@ class ListDatabasesResponse extends \Google\Protobuf\Internal\Message
     private $databases;
     /**
      * `next_page_token` can be sent in a subsequent
-     * [ListDatabases][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabases] call to fetch more
-     * of the matching databases.
+     * [ListDatabases][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabases]
+     * call to fetch more of the matching databases.
      *
      * Generated from protobuf field <code>string next_page_token = 2;</code>
      */
@@ -40,8 +41,8 @@ class ListDatabasesResponse extends \Google\Protobuf\Internal\Message
      *           Databases that matched the request.
      *     @type string $next_page_token
      *           `next_page_token` can be sent in a subsequent
-     *           [ListDatabases][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabases] call to fetch more
-     *           of the matching databases.
+     *           [ListDatabases][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabases]
+     *           call to fetch more of the matching databases.
      * }
      */
     public function __construct($data = NULL) {
@@ -77,8 +78,8 @@ public function setDatabases($var)
 
     /**
      * `next_page_token` can be sent in a subsequent
-     * [ListDatabases][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabases] call to fetch more
-     * of the matching databases.
+     * [ListDatabases][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabases]
+     * call to fetch more of the matching databases.
      *
      * Generated from protobuf field <code>string next_page_token = 2;</code>
      * @return string
@@ -90,8 +91,8 @@ public function getNextPageToken()
 
     /**
      * `next_page_token` can be sent in a subsequent
-     * [ListDatabases][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabases] call to fetch more
-     * of the matching databases.
+     * [ListDatabases][google.spanner.admin.database.v1.DatabaseAdmin.ListDatabases]
+     * call to fetch more of the matching databases.
      *
      * Generated from protobuf field <code>string next_page_token = 2;</code>
      * @param string $var
diff --git a/Spanner/src/Admin/Database/V1/RestoreDatabaseEncryptionConfig.php b/Spanner/src/Admin/Database/V1/RestoreDatabaseEncryptionConfig.php
index f2e875409c96..54f3e913a322 100644
--- a/Spanner/src/Admin/Database/V1/RestoreDatabaseEncryptionConfig.php
+++ b/Spanner/src/Admin/Database/V1/RestoreDatabaseEncryptionConfig.php
@@ -22,15 +22,34 @@ class RestoreDatabaseEncryptionConfig extends \Google\Protobuf\Internal\Message
      */
     private $encryption_type = 0;
     /**
-     * Optional. The Cloud KMS key that will be used to encrypt/decrypt the restored
-     * database. This field should be set only when
-     * [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type] is
-     * `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     * Optional. The Cloud KMS key that will be used to encrypt/decrypt the
+     * restored database. This field should be set only when
+     * [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type]
+     * is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
      * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
      *
      * Generated from protobuf field <code>string kms_key_name = 2 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
      */
     private $kms_key_name = '';
+    /**
+     * Optional. Specifies the KMS configuration for the one or more keys used to
+     * encrypt the database. Values are of the form
+     * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     * The keys referenced by kms_key_names must fully cover all
+     * regions of the database instance configuration. Some examples:
+     * * For single region database instance configs, specify a single regional
+     * location KMS key.
+     * * For multi-regional database instance configs of type GOOGLE_MANAGED,
+     * either specify a multi-regional location KMS key or multiple regional
+     * location KMS keys that cover all regions in the instance config.
+     * * For a database instance config of type USER_MANAGED, please specify only
+     * regional location KMS keys to cover each region in the instance config.
+     * Multi-regional location KMS keys are not supported for USER_MANAGED
+     * instance configs.
+     *
+     * Generated from protobuf field <code>repeated string kms_key_names = 3 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
+     */
+    private $kms_key_names;
 
     /**
      * Constructor.
@@ -41,11 +60,26 @@ class RestoreDatabaseEncryptionConfig extends \Google\Protobuf\Internal\Message
      *     @type int $encryption_type
      *           Required. The encryption type of the restored database.
      *     @type string $kms_key_name
-     *           Optional. The Cloud KMS key that will be used to encrypt/decrypt the restored
-     *           database. This field should be set only when
-     *           [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type] is
-     *           `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     *           Optional. The Cloud KMS key that will be used to encrypt/decrypt the
+     *           restored database. This field should be set only when
+     *           [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type]
+     *           is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     *           `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $kms_key_names
+     *           Optional. Specifies the KMS configuration for the one or more keys used to
+     *           encrypt the database. Values are of the form
      *           `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     *           The keys referenced by kms_key_names must fully cover all
+     *           regions of the database instance configuration. Some examples:
+     *           * For single region database instance configs, specify a single regional
+     *           location KMS key.
+     *           * For multi-regional database instance configs of type GOOGLE_MANAGED,
+     *           either specify a multi-regional location KMS key or multiple regional
+     *           location KMS keys that cover all regions in the instance config.
+     *           * For a database instance config of type USER_MANAGED, please specify only
+     *           regional location KMS keys to cover each region in the instance config.
+     *           Multi-regional location KMS keys are not supported for USER_MANAGED
+     *           instance configs.
      * }
      */
     public function __construct($data = NULL) {
@@ -80,10 +114,10 @@ public function setEncryptionType($var)
     }
 
     /**
-     * Optional. The Cloud KMS key that will be used to encrypt/decrypt the restored
-     * database. This field should be set only when
-     * [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type] is
-     * `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     * Optional. The Cloud KMS key that will be used to encrypt/decrypt the
+     * restored database. This field should be set only when
+     * [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type]
+     * is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
      * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
      *
      * Generated from protobuf field <code>string kms_key_name = 2 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
@@ -95,10 +129,10 @@ public function getKmsKeyName()
     }
 
     /**
-     * Optional. The Cloud KMS key that will be used to encrypt/decrypt the restored
-     * database. This field should be set only when
-     * [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type] is
-     * `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
+     * Optional. The Cloud KMS key that will be used to encrypt/decrypt the
+     * restored database. This field should be set only when
+     * [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type]
+     * is `CUSTOMER_MANAGED_ENCRYPTION`. Values are of the form
      * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
      *
      * Generated from protobuf field <code>string kms_key_name = 2 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
@@ -113,5 +147,57 @@ public function setKmsKeyName($var)
         return $this;
     }
 
+    /**
+     * Optional. Specifies the KMS configuration for the one or more keys used to
+     * encrypt the database. Values are of the form
+     * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     * The keys referenced by kms_key_names must fully cover all
+     * regions of the database instance configuration. Some examples:
+     * * For single region database instance configs, specify a single regional
+     * location KMS key.
+     * * For multi-regional database instance configs of type GOOGLE_MANAGED,
+     * either specify a multi-regional location KMS key or multiple regional
+     * location KMS keys that cover all regions in the instance config.
+     * * For a database instance config of type USER_MANAGED, please specify only
+     * regional location KMS keys to cover each region in the instance config.
+     * Multi-regional location KMS keys are not supported for USER_MANAGED
+     * instance configs.
+     *
+     * Generated from protobuf field <code>repeated string kms_key_names = 3 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
+     * @return \Google\Protobuf\Internal\RepeatedField
+     */
+    public function getKmsKeyNames()
+    {
+        return $this->kms_key_names;
+    }
+
+    /**
+     * Optional. Specifies the KMS configuration for the one or more keys used to
+     * encrypt the database. Values are of the form
+     * `projects/<project>/locations/<location>/keyRings/<key_ring>/cryptoKeys/<kms_key_name>`.
+     * The keys referenced by kms_key_names must fully cover all
+     * regions of the database instance configuration. Some examples:
+     * * For single region database instance configs, specify a single regional
+     * location KMS key.
+     * * For multi-regional database instance configs of type GOOGLE_MANAGED,
+     * either specify a multi-regional location KMS key or multiple regional
+     * location KMS keys that cover all regions in the instance config.
+     * * For a database instance config of type USER_MANAGED, please specify only
+     * regional location KMS keys to cover each region in the instance config.
+     * Multi-regional location KMS keys are not supported for USER_MANAGED
+     * instance configs.
+     *
+     * Generated from protobuf field <code>repeated string kms_key_names = 3 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = {</code>
+     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
+     * @return $this
+     */
+    public function setKmsKeyNames($var)
+    {
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->kms_key_names = $arr;
+
+        return $this;
+    }
+
 }
 
diff --git a/Spanner/src/Admin/Database/V1/RestoreDatabaseEncryptionConfig/EncryptionType.php b/Spanner/src/Admin/Database/V1/RestoreDatabaseEncryptionConfig/EncryptionType.php
index 042b60fb0a34..6650757c3714 100644
--- a/Spanner/src/Admin/Database/V1/RestoreDatabaseEncryptionConfig/EncryptionType.php
+++ b/Spanner/src/Admin/Database/V1/RestoreDatabaseEncryptionConfig/EncryptionType.php
@@ -21,7 +21,8 @@ class EncryptionType
     const ENCRYPTION_TYPE_UNSPECIFIED = 0;
     /**
      * This is the default option when
-     * [encryption_config][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig] is not specified.
+     * [encryption_config][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig]
+     * is not specified.
      *
      * Generated from protobuf enum <code>USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION = 1;</code>
      */
diff --git a/Spanner/src/Admin/Database/V1/RestoreDatabaseMetadata.php b/Spanner/src/Admin/Database/V1/RestoreDatabaseMetadata.php
index 6d2aadbbc6df..8dc01de6749f 100644
--- a/Spanner/src/Admin/Database/V1/RestoreDatabaseMetadata.php
+++ b/Spanner/src/Admin/Database/V1/RestoreDatabaseMetadata.php
@@ -47,7 +47,8 @@ class RestoreDatabaseMetadata extends \Google\Protobuf\Internal\Message
      * operation completed despite cancellation. On successful cancellation,
      * the operation is not deleted; instead, it becomes an operation with
      * an [Operation.error][google.longrunning.Operation.error] value with a
-     * [google.rpc.Status.code][google.rpc.Status.code] of 1, corresponding to `Code.CANCELLED`.
+     * [google.rpc.Status.code][google.rpc.Status.code] of 1, corresponding to
+     * `Code.CANCELLED`.
      *
      * Generated from protobuf field <code>.google.protobuf.Timestamp cancel_time = 5;</code>
      */
@@ -60,10 +61,10 @@ class RestoreDatabaseMetadata extends \Google\Protobuf\Internal\Message
      * `projects/<project>/instances/<instance>/databases/<database>/operations/<operation>`
      * where the <database> is the name of database being created and restored to.
      * The metadata type of the  long-running operation is
-     * [OptimizeRestoredDatabaseMetadata][google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata]. This long-running operation will be
-     * automatically created by the system after the RestoreDatabase long-running
-     * operation completes successfully. This operation will not be created if the
-     * restore was not successful.
+     * [OptimizeRestoredDatabaseMetadata][google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata].
+     * This long-running operation will be automatically created by the system
+     * after the RestoreDatabase long-running operation completes successfully.
+     * This operation will not be created if the restore was not successful.
      *
      * Generated from protobuf field <code>string optimize_database_operation_name = 6;</code>
      */
@@ -97,7 +98,8 @@ class RestoreDatabaseMetadata extends \Google\Protobuf\Internal\Message
      *           operation completed despite cancellation. On successful cancellation,
      *           the operation is not deleted; instead, it becomes an operation with
      *           an [Operation.error][google.longrunning.Operation.error] value with a
-     *           [google.rpc.Status.code][google.rpc.Status.code] of 1, corresponding to `Code.CANCELLED`.
+     *           [google.rpc.Status.code][google.rpc.Status.code] of 1, corresponding to
+     *           `Code.CANCELLED`.
      *     @type string $optimize_database_operation_name
      *           If exists, the name of the long-running operation that will be used to
      *           track the post-restore optimization process to optimize the performance of
@@ -106,10 +108,10 @@ class RestoreDatabaseMetadata extends \Google\Protobuf\Internal\Message
      *           `projects/<project>/instances/<instance>/databases/<database>/operations/<operation>`
      *           where the <database> is the name of database being created and restored to.
      *           The metadata type of the  long-running operation is
-     *           [OptimizeRestoredDatabaseMetadata][google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata]. This long-running operation will be
-     *           automatically created by the system after the RestoreDatabase long-running
-     *           operation completes successfully. This operation will not be created if the
-     *           restore was not successful.
+     *           [OptimizeRestoredDatabaseMetadata][google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata].
+     *           This long-running operation will be automatically created by the system
+     *           after the RestoreDatabase long-running operation completes successfully.
+     *           This operation will not be created if the restore was not successful.
      * }
      */
     public function __construct($data = NULL) {
@@ -251,7 +253,8 @@ public function setProgress($var)
      * operation completed despite cancellation. On successful cancellation,
      * the operation is not deleted; instead, it becomes an operation with
      * an [Operation.error][google.longrunning.Operation.error] value with a
-     * [google.rpc.Status.code][google.rpc.Status.code] of 1, corresponding to `Code.CANCELLED`.
+     * [google.rpc.Status.code][google.rpc.Status.code] of 1, corresponding to
+     * `Code.CANCELLED`.
      *
      * Generated from protobuf field <code>.google.protobuf.Timestamp cancel_time = 5;</code>
      * @return \Google\Protobuf\Timestamp|null
@@ -282,7 +285,8 @@ public function clearCancelTime()
      * operation completed despite cancellation. On successful cancellation,
      * the operation is not deleted; instead, it becomes an operation with
      * an [Operation.error][google.longrunning.Operation.error] value with a
-     * [google.rpc.Status.code][google.rpc.Status.code] of 1, corresponding to `Code.CANCELLED`.
+     * [google.rpc.Status.code][google.rpc.Status.code] of 1, corresponding to
+     * `Code.CANCELLED`.
      *
      * Generated from protobuf field <code>.google.protobuf.Timestamp cancel_time = 5;</code>
      * @param \Google\Protobuf\Timestamp $var
@@ -304,10 +308,10 @@ public function setCancelTime($var)
      * `projects/<project>/instances/<instance>/databases/<database>/operations/<operation>`
      * where the <database> is the name of database being created and restored to.
      * The metadata type of the  long-running operation is
-     * [OptimizeRestoredDatabaseMetadata][google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata]. This long-running operation will be
-     * automatically created by the system after the RestoreDatabase long-running
-     * operation completes successfully. This operation will not be created if the
-     * restore was not successful.
+     * [OptimizeRestoredDatabaseMetadata][google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata].
+     * This long-running operation will be automatically created by the system
+     * after the RestoreDatabase long-running operation completes successfully.
+     * This operation will not be created if the restore was not successful.
      *
      * Generated from protobuf field <code>string optimize_database_operation_name = 6;</code>
      * @return string
@@ -325,10 +329,10 @@ public function getOptimizeDatabaseOperationName()
      * `projects/<project>/instances/<instance>/databases/<database>/operations/<operation>`
      * where the <database> is the name of database being created and restored to.
      * The metadata type of the  long-running operation is
-     * [OptimizeRestoredDatabaseMetadata][google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata]. This long-running operation will be
-     * automatically created by the system after the RestoreDatabase long-running
-     * operation completes successfully. This operation will not be created if the
-     * restore was not successful.
+     * [OptimizeRestoredDatabaseMetadata][google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata].
+     * This long-running operation will be automatically created by the system
+     * after the RestoreDatabase long-running operation completes successfully.
+     * This operation will not be created if the restore was not successful.
      *
      * Generated from protobuf field <code>string optimize_database_operation_name = 6;</code>
      * @param string $var
diff --git a/Spanner/src/Admin/Database/V1/RestoreDatabaseRequest.php b/Spanner/src/Admin/Database/V1/RestoreDatabaseRequest.php
index 34a9d1e30c2d..e9f2ef8b7d8c 100644
--- a/Spanner/src/Admin/Database/V1/RestoreDatabaseRequest.php
+++ b/Spanner/src/Admin/Database/V1/RestoreDatabaseRequest.php
@@ -36,12 +36,12 @@ class RestoreDatabaseRequest extends \Google\Protobuf\Internal\Message
      */
     private $database_id = '';
     /**
-     * Optional. An encryption configuration describing the encryption type and key
-     * resources in Cloud KMS used to encrypt/decrypt the database to restore to.
-     * If this field is not specified, the restored database will use
-     * the same encryption configuration as the backup by default, namely
-     * [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type] =
-     * `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
+     * Optional. An encryption configuration describing the encryption type and
+     * key resources in Cloud KMS used to encrypt/decrypt the database to restore
+     * to. If this field is not specified, the restored database will use the same
+     * encryption configuration as the backup by default, namely
+     * [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type]
+     * = `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig encryption_config = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
      */
@@ -95,12 +95,12 @@ public static function build(string $parent, string $databaseId, string $backup)
      *           Name of the backup from which to restore.  Values are of the form
      *           `projects/<project>/instances/<instance>/backups/<backup>`.
      *     @type \Google\Cloud\Spanner\Admin\Database\V1\RestoreDatabaseEncryptionConfig $encryption_config
-     *           Optional. An encryption configuration describing the encryption type and key
-     *           resources in Cloud KMS used to encrypt/decrypt the database to restore to.
-     *           If this field is not specified, the restored database will use
-     *           the same encryption configuration as the backup by default, namely
-     *           [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type] =
-     *           `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
+     *           Optional. An encryption configuration describing the encryption type and
+     *           key resources in Cloud KMS used to encrypt/decrypt the database to restore
+     *           to. If this field is not specified, the restored database will use the same
+     *           encryption configuration as the backup by default, namely
+     *           [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type]
+     *           = `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
      * }
      */
     public function __construct($data = NULL) {
@@ -208,12 +208,12 @@ public function setBackup($var)
     }
 
     /**
-     * Optional. An encryption configuration describing the encryption type and key
-     * resources in Cloud KMS used to encrypt/decrypt the database to restore to.
-     * If this field is not specified, the restored database will use
-     * the same encryption configuration as the backup by default, namely
-     * [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type] =
-     * `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
+     * Optional. An encryption configuration describing the encryption type and
+     * key resources in Cloud KMS used to encrypt/decrypt the database to restore
+     * to. If this field is not specified, the restored database will use the same
+     * encryption configuration as the backup by default, namely
+     * [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type]
+     * = `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig encryption_config = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
      * @return \Google\Cloud\Spanner\Admin\Database\V1\RestoreDatabaseEncryptionConfig|null
@@ -234,12 +234,12 @@ public function clearEncryptionConfig()
     }
 
     /**
-     * Optional. An encryption configuration describing the encryption type and key
-     * resources in Cloud KMS used to encrypt/decrypt the database to restore to.
-     * If this field is not specified, the restored database will use
-     * the same encryption configuration as the backup by default, namely
-     * [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type] =
-     * `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
+     * Optional. An encryption configuration describing the encryption type and
+     * key resources in Cloud KMS used to encrypt/decrypt the database to restore
+     * to. If this field is not specified, the restored database will use the same
+     * encryption configuration as the backup by default, namely
+     * [encryption_type][google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.encryption_type]
+     * = `USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION`.
      *
      * Generated from protobuf field <code>.google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig encryption_config = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
      * @param \Google\Cloud\Spanner\Admin\Database\V1\RestoreDatabaseEncryptionConfig $var
diff --git a/Spanner/src/Admin/Database/V1/UpdateBackupRequest.php b/Spanner/src/Admin/Database/V1/UpdateBackupRequest.php
index 0fa6d302efab..94db96b17083 100644
--- a/Spanner/src/Admin/Database/V1/UpdateBackupRequest.php
+++ b/Spanner/src/Admin/Database/V1/UpdateBackupRequest.php
@@ -9,7 +9,8 @@
 use Google\Protobuf\Internal\GPBUtil;
 
 /**
- * The request for [UpdateBackup][google.spanner.admin.database.v1.DatabaseAdmin.UpdateBackup].
+ * The request for
+ * [UpdateBackup][google.spanner.admin.database.v1.DatabaseAdmin.UpdateBackup].
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.UpdateBackupRequest</code>
  */
diff --git a/Spanner/src/Admin/Database/V1/UpdateDatabaseDdlRequest.php b/Spanner/src/Admin/Database/V1/UpdateDatabaseDdlRequest.php
index fefb1928a3d6..9e9e7ff08124 100644
--- a/Spanner/src/Admin/Database/V1/UpdateDatabaseDdlRequest.php
+++ b/Spanner/src/Admin/Database/V1/UpdateDatabaseDdlRequest.php
@@ -22,8 +22,8 @@
  * Each batch of statements is assigned a name which can be used with
  * the [Operations][google.longrunning.Operations] API to monitor
  * progress. See the
- * [operation_id][google.spanner.admin.database.v1.UpdateDatabaseDdlRequest.operation_id] field for more
- * details.
+ * [operation_id][google.spanner.admin.database.v1.UpdateDatabaseDdlRequest.operation_id]
+ * field for more details.
  *
  * Generated from protobuf message <code>google.spanner.admin.database.v1.UpdateDatabaseDdlRequest</code>
  */
@@ -48,17 +48,19 @@ class UpdateDatabaseDdlRequest extends \Google\Protobuf\Internal\Message
      * [Operation][google.longrunning.Operation].
      * Specifying an explicit operation ID simplifies determining
      * whether the statements were executed in the event that the
-     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl] call is replayed,
-     * or the return value is otherwise lost: the [database][google.spanner.admin.database.v1.UpdateDatabaseDdlRequest.database] and
-     * `operation_id` fields can be combined to form the
+     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]
+     * call is replayed, or the return value is otherwise lost: the
+     * [database][google.spanner.admin.database.v1.UpdateDatabaseDdlRequest.database]
+     * and `operation_id` fields can be combined to form the
      * [name][google.longrunning.Operation.name] of the resulting
-     * [longrunning.Operation][google.longrunning.Operation]: `<database>/operations/<operation_id>`.
+     * [longrunning.Operation][google.longrunning.Operation]:
+     * `<database>/operations/<operation_id>`.
      * `operation_id` should be unique within the database, and must be
      * a valid identifier: `[a-z][a-z0-9_]*`. Note that
      * automatically-generated operation IDs always begin with an
      * underscore. If the named operation already exists,
-     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl] returns
-     * `ALREADY_EXISTS`.
+     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]
+     * returns `ALREADY_EXISTS`.
      *
      * Generated from protobuf field <code>string operation_id = 3;</code>
      */
@@ -116,17 +118,19 @@ public static function build(string $database, array $statements): self
      *           [Operation][google.longrunning.Operation].
      *           Specifying an explicit operation ID simplifies determining
      *           whether the statements were executed in the event that the
-     *           [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl] call is replayed,
-     *           or the return value is otherwise lost: the [database][google.spanner.admin.database.v1.UpdateDatabaseDdlRequest.database] and
-     *           `operation_id` fields can be combined to form the
+     *           [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]
+     *           call is replayed, or the return value is otherwise lost: the
+     *           [database][google.spanner.admin.database.v1.UpdateDatabaseDdlRequest.database]
+     *           and `operation_id` fields can be combined to form the
      *           [name][google.longrunning.Operation.name] of the resulting
-     *           [longrunning.Operation][google.longrunning.Operation]: `<database>/operations/<operation_id>`.
+     *           [longrunning.Operation][google.longrunning.Operation]:
+     *           `<database>/operations/<operation_id>`.
      *           `operation_id` should be unique within the database, and must be
      *           a valid identifier: `[a-z][a-z0-9_]*`. Note that
      *           automatically-generated operation IDs always begin with an
      *           underscore. If the named operation already exists,
-     *           [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl] returns
-     *           `ALREADY_EXISTS`.
+     *           [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]
+     *           returns `ALREADY_EXISTS`.
      *     @type string $proto_descriptors
      *           Optional. Proto descriptors used by CREATE/ALTER PROTO BUNDLE statements.
      *           Contains a protobuf-serialized
@@ -208,17 +212,19 @@ public function setStatements($var)
      * [Operation][google.longrunning.Operation].
      * Specifying an explicit operation ID simplifies determining
      * whether the statements were executed in the event that the
-     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl] call is replayed,
-     * or the return value is otherwise lost: the [database][google.spanner.admin.database.v1.UpdateDatabaseDdlRequest.database] and
-     * `operation_id` fields can be combined to form the
+     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]
+     * call is replayed, or the return value is otherwise lost: the
+     * [database][google.spanner.admin.database.v1.UpdateDatabaseDdlRequest.database]
+     * and `operation_id` fields can be combined to form the
      * [name][google.longrunning.Operation.name] of the resulting
-     * [longrunning.Operation][google.longrunning.Operation]: `<database>/operations/<operation_id>`.
+     * [longrunning.Operation][google.longrunning.Operation]:
+     * `<database>/operations/<operation_id>`.
      * `operation_id` should be unique within the database, and must be
      * a valid identifier: `[a-z][a-z0-9_]*`. Note that
      * automatically-generated operation IDs always begin with an
      * underscore. If the named operation already exists,
-     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl] returns
-     * `ALREADY_EXISTS`.
+     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]
+     * returns `ALREADY_EXISTS`.
      *
      * Generated from protobuf field <code>string operation_id = 3;</code>
      * @return string
@@ -235,17 +241,19 @@ public function getOperationId()
      * [Operation][google.longrunning.Operation].
      * Specifying an explicit operation ID simplifies determining
      * whether the statements were executed in the event that the
-     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl] call is replayed,
-     * or the return value is otherwise lost: the [database][google.spanner.admin.database.v1.UpdateDatabaseDdlRequest.database] and
-     * `operation_id` fields can be combined to form the
+     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]
+     * call is replayed, or the return value is otherwise lost: the
+     * [database][google.spanner.admin.database.v1.UpdateDatabaseDdlRequest.database]
+     * and `operation_id` fields can be combined to form the
      * [name][google.longrunning.Operation.name] of the resulting
-     * [longrunning.Operation][google.longrunning.Operation]: `<database>/operations/<operation_id>`.
+     * [longrunning.Operation][google.longrunning.Operation]:
+     * `<database>/operations/<operation_id>`.
      * `operation_id` should be unique within the database, and must be
      * a valid identifier: `[a-z][a-z0-9_]*`. Note that
      * automatically-generated operation IDs always begin with an
      * underscore. If the named operation already exists,
-     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl] returns
-     * `ALREADY_EXISTS`.
+     * [UpdateDatabaseDdl][google.spanner.admin.database.v1.DatabaseAdmin.UpdateDatabaseDdl]
+     * returns `ALREADY_EXISTS`.
      *
      * Generated from protobuf field <code>string operation_id = 3;</code>
      * @param string $var