diff --git a/google/cloud/spanner_v1/types/spanner.py b/google/cloud/spanner_v1/types/spanner.py
index 3dbacbe26b..2590c212d2 100644
--- a/google/cloud/spanner_v1/types/spanner.py
+++ b/google/cloud/spanner_v1/types/spanner.py
@@ -24,6 +24,7 @@
 from google.cloud.spanner_v1.types import result_set
 from google.cloud.spanner_v1.types import transaction as gs_transaction
 from google.cloud.spanner_v1.types import type as gs_type
+from google.protobuf import duration_pb2  # type: ignore
 from google.protobuf import struct_pb2  # type: ignore
 from google.protobuf import timestamp_pb2  # type: ignore
 from google.rpc import status_pb2  # type: ignore
@@ -1434,6 +1435,14 @@ class CommitRequest(proto.Message):
             be included in the
             [CommitResponse][google.spanner.v1.CommitResponse.commit_stats].
             Default value is ``false``.
+        max_commit_delay (google.protobuf.duration_pb2.Duration):
+            Optional. The amount of latency this request
+            is willing to incur in order to improve
+            throughput. If this field is not set, Spanner
+            assumes requests are relatively latency
+            sensitive and automatically determines an
+            appropriate delay time. You can specify a
+            batching delay value between 0 and 500 ms.
         request_options (google.cloud.spanner_v1.types.RequestOptions):
             Common options for this request.
     """
@@ -1462,6 +1471,11 @@ class CommitRequest(proto.Message):
         proto.BOOL,
         number=5,
     )
+    max_commit_delay: duration_pb2.Duration = proto.Field(
+        proto.MESSAGE,
+        number=8,
+        message=duration_pb2.Duration,
+    )
     request_options: "RequestOptions" = proto.Field(
         proto.MESSAGE,
         number=6,
diff --git a/google/cloud/spanner_v1/types/type.py b/google/cloud/spanner_v1/types/type.py
index f25c465dd4..c6ead3bf1e 100644
--- a/google/cloud/spanner_v1/types/type.py
+++ b/google/cloud/spanner_v1/types/type.py
@@ -94,6 +94,11 @@ class TypeCode(proto.Enum):
             -  Members of a JSON object are not guaranteed to have their
                order preserved.
             -  JSON array elements will have their order preserved.
+        PROTO (13):
+            Encoded as a base64-encoded ``string``, as described in RFC
+            4648, section 4.
+        ENUM (14):
+            Encoded as ``string``, in decimal format.
     """
     TYPE_CODE_UNSPECIFIED = 0
     BOOL = 1
@@ -107,6 +112,8 @@ class TypeCode(proto.Enum):
     STRUCT = 9
     NUMERIC = 10
     JSON = 11
+    PROTO = 13
+    ENUM = 14
 
 
 class TypeAnnotationCode(proto.Enum):
@@ -179,6 +186,13 @@ class Type(proto.Message):
             typically is not needed to process the content of a value
             (it doesn't affect serialization) and clients can ignore it
             on the read path.
+        proto_type_fqn (str):
+            If [code][google.spanner.v1.Type.code] ==
+            [PROTO][google.spanner.v1.TypeCode.PROTO] or
+            [code][google.spanner.v1.Type.code] ==
+            [ENUM][google.spanner.v1.TypeCode.ENUM], then
+            ``proto_type_fqn`` is the fully qualified name of the proto
+            type representing the proto/enum definition.
     """
 
     code: "TypeCode" = proto.Field(
@@ -201,6 +215,10 @@ class Type(proto.Message):
         number=4,
         enum="TypeAnnotationCode",
     )
+    proto_type_fqn: str = proto.Field(
+        proto.STRING,
+        number=5,
+    )
 
 
 class StructType(proto.Message):
diff --git a/samples/generated_samples/snippet_metadata_google.spanner.admin.database.v1.json b/samples/generated_samples/snippet_metadata_google.spanner.admin.database.v1.json
index c6ea090f6d..11932ae5e8 100644
--- a/samples/generated_samples/snippet_metadata_google.spanner.admin.database.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.spanner.admin.database.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-spanner-admin-database",
-    "version": "3.41.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {
diff --git a/samples/generated_samples/snippet_metadata_google.spanner.admin.instance.v1.json b/samples/generated_samples/snippet_metadata_google.spanner.admin.instance.v1.json
index 340d53926c..9572d4d727 100644
--- a/samples/generated_samples/snippet_metadata_google.spanner.admin.instance.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.spanner.admin.instance.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-spanner-admin-instance",
-    "version": "3.41.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {
diff --git a/samples/generated_samples/snippet_metadata_google.spanner.v1.json b/samples/generated_samples/snippet_metadata_google.spanner.v1.json
index cb86201769..4384d19e2a 100644
--- a/samples/generated_samples/snippet_metadata_google.spanner.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.spanner.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-spanner",
-    "version": "3.41.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {
diff --git a/scripts/fixup_spanner_v1_keywords.py b/scripts/fixup_spanner_v1_keywords.py
index f79f70b2dd..939da961f0 100644
--- a/scripts/fixup_spanner_v1_keywords.py
+++ b/scripts/fixup_spanner_v1_keywords.py
@@ -42,7 +42,7 @@ class spannerCallTransformer(cst.CSTTransformer):
         'batch_create_sessions': ('database', 'session_count', 'session_template', ),
         'batch_write': ('session', 'mutation_groups', 'request_options', ),
         'begin_transaction': ('session', 'options', 'request_options', ),
-        'commit': ('session', 'transaction_id', 'single_use_transaction', 'mutations', 'return_commit_stats', 'request_options', ),
+        'commit': ('session', 'transaction_id', 'single_use_transaction', 'mutations', 'return_commit_stats', 'max_commit_delay', 'request_options', ),
         'create_session': ('database', 'session', ),
         'delete_session': ('name', ),
         'execute_batch_dml': ('session', 'transaction', 'statements', 'seqno', 'request_options', ),