From 6cebb8d61fc6f9ee5edc0b0878efeac217e21fe8 Mon Sep 17 00:00:00 2001
From: "gcf-owl-bot[bot]" <78513119+gcf-owl-bot[bot]@users.noreply.github.com>
Date: Fri, 7 Jul 2023 14:36:11 -0400
Subject: [PATCH] docs: [tpu] minor updates in comments (#9619)
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* docs: minor updates in comments

PiperOrigin-RevId: 546043107

Source-Link: https://github.com/googleapis/googleapis/commit/5511d65673a3efff6f63a2614b2090e9ef768b12

Source-Link: https://github.com/googleapis/googleapis-gen/commit/322130e2fb9b71060cec9377a549e63e981acaee
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* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
---
 java-tpu/README.md                                          | 4 ++--
 .../src/main/java/com/google/cloud/tpu/v1/TpuGrpc.java      | 2 +-
 .../src/main/java/com/google/cloud/tpu/v2/TpuGrpc.java      | 2 +-
 .../main/java/com/google/cloud/tpu/v2alpha1/TpuGrpc.java    | 2 +-
 .../main/java/com/google/cloud/tpu/v1/AcceleratorType.java  | 2 +-
 .../com/google/cloud/tpu/v1/AcceleratorTypeOrBuilder.java   | 2 +-
 .../main/java/com/google/cloud/tpu/v1/CloudTpuProto.java    | 2 +-
 .../java/com/google/cloud/tpu/v1/CreateNodeRequest.java     | 2 +-
 .../com/google/cloud/tpu/v1/CreateNodeRequestOrBuilder.java | 2 +-
 .../java/com/google/cloud/tpu/v1/DeleteNodeRequest.java     | 2 +-
 .../com/google/cloud/tpu/v1/DeleteNodeRequestOrBuilder.java | 2 +-
 .../com/google/cloud/tpu/v1/GetAcceleratorTypeRequest.java  | 2 +-
 .../cloud/tpu/v1/GetAcceleratorTypeRequestOrBuilder.java    | 2 +-
 .../main/java/com/google/cloud/tpu/v1/GetNodeRequest.java   | 2 +-
 .../com/google/cloud/tpu/v1/GetNodeRequestOrBuilder.java    | 2 +-
 .../google/cloud/tpu/v1/GetTensorFlowVersionRequest.java    | 2 +-
 .../cloud/tpu/v1/GetTensorFlowVersionRequestOrBuilder.java  | 2 +-
 .../google/cloud/tpu/v1/ListAcceleratorTypesRequest.java    | 2 +-
 .../cloud/tpu/v1/ListAcceleratorTypesRequestOrBuilder.java  | 2 +-
 .../google/cloud/tpu/v1/ListAcceleratorTypesResponse.java   | 2 +-
 .../cloud/tpu/v1/ListAcceleratorTypesResponseOrBuilder.java | 2 +-
 .../main/java/com/google/cloud/tpu/v1/ListNodesRequest.java | 2 +-
 .../com/google/cloud/tpu/v1/ListNodesRequestOrBuilder.java  | 2 +-
 .../java/com/google/cloud/tpu/v1/ListNodesResponse.java     | 2 +-
 .../com/google/cloud/tpu/v1/ListNodesResponseOrBuilder.java | 2 +-
 .../google/cloud/tpu/v1/ListTensorFlowVersionsRequest.java  | 2 +-
 .../tpu/v1/ListTensorFlowVersionsRequestOrBuilder.java      | 2 +-
 .../google/cloud/tpu/v1/ListTensorFlowVersionsResponse.java | 2 +-
 .../tpu/v1/ListTensorFlowVersionsResponseOrBuilder.java     | 2 +-
 .../main/java/com/google/cloud/tpu/v1/NetworkEndpoint.java  | 2 +-
 .../com/google/cloud/tpu/v1/NetworkEndpointOrBuilder.java   | 2 +-
 .../src/main/java/com/google/cloud/tpu/v1/Node.java         | 2 +-
 .../main/java/com/google/cloud/tpu/v1/NodeOrBuilder.java    | 2 +-
 .../java/com/google/cloud/tpu/v1/OperationMetadata.java     | 2 +-
 .../com/google/cloud/tpu/v1/OperationMetadataOrBuilder.java | 2 +-
 .../java/com/google/cloud/tpu/v1/ReimageNodeRequest.java    | 2 +-
 .../google/cloud/tpu/v1/ReimageNodeRequestOrBuilder.java    | 2 +-
 .../main/java/com/google/cloud/tpu/v1/SchedulingConfig.java | 2 +-
 .../com/google/cloud/tpu/v1/SchedulingConfigOrBuilder.java  | 2 +-
 .../main/java/com/google/cloud/tpu/v1/StartNodeRequest.java | 2 +-
 .../com/google/cloud/tpu/v1/StartNodeRequestOrBuilder.java  | 2 +-
 .../main/java/com/google/cloud/tpu/v1/StopNodeRequest.java  | 2 +-
 .../com/google/cloud/tpu/v1/StopNodeRequestOrBuilder.java   | 2 +-
 .../src/main/java/com/google/cloud/tpu/v1/Symptom.java      | 2 +-
 .../main/java/com/google/cloud/tpu/v1/SymptomOrBuilder.java | 2 +-
 .../java/com/google/cloud/tpu/v1/TensorFlowVersion.java     | 2 +-
 .../com/google/cloud/tpu/v1/TensorFlowVersionOrBuilder.java | 2 +-
 .../java/com/google/cloud/tpu/v2/AcceleratorConfig.java     | 2 +-
 .../com/google/cloud/tpu/v2/AcceleratorConfigOrBuilder.java | 2 +-
 .../main/java/com/google/cloud/tpu/v2/AcceleratorType.java  | 2 +-
 .../com/google/cloud/tpu/v2/AcceleratorTypeOrBuilder.java   | 2 +-
 .../src/main/java/com/google/cloud/tpu/v2/AccessConfig.java | 2 +-
 .../java/com/google/cloud/tpu/v2/AccessConfigOrBuilder.java | 2 +-
 .../src/main/java/com/google/cloud/tpu/v2/AttachedDisk.java | 2 +-
 .../java/com/google/cloud/tpu/v2/AttachedDiskOrBuilder.java | 2 +-
 .../main/java/com/google/cloud/tpu/v2/CloudTpuProto.java    | 2 +-
 .../java/com/google/cloud/tpu/v2/CreateNodeRequest.java     | 2 +-
 .../com/google/cloud/tpu/v2/CreateNodeRequestOrBuilder.java | 2 +-
 .../java/com/google/cloud/tpu/v2/DeleteNodeRequest.java     | 2 +-
 .../com/google/cloud/tpu/v2/DeleteNodeRequestOrBuilder.java | 2 +-
 .../google/cloud/tpu/v2/GenerateServiceIdentityRequest.java | 2 +-
 .../tpu/v2/GenerateServiceIdentityRequestOrBuilder.java     | 2 +-
 .../cloud/tpu/v2/GenerateServiceIdentityResponse.java       | 2 +-
 .../tpu/v2/GenerateServiceIdentityResponseOrBuilder.java    | 2 +-
 .../com/google/cloud/tpu/v2/GetAcceleratorTypeRequest.java  | 2 +-
 .../cloud/tpu/v2/GetAcceleratorTypeRequestOrBuilder.java    | 2 +-
 .../com/google/cloud/tpu/v2/GetGuestAttributesRequest.java  | 2 +-
 .../cloud/tpu/v2/GetGuestAttributesRequestOrBuilder.java    | 2 +-
 .../com/google/cloud/tpu/v2/GetGuestAttributesResponse.java | 2 +-
 .../cloud/tpu/v2/GetGuestAttributesResponseOrBuilder.java   | 2 +-
 .../main/java/com/google/cloud/tpu/v2/GetNodeRequest.java   | 2 +-
 .../com/google/cloud/tpu/v2/GetNodeRequestOrBuilder.java    | 2 +-
 .../com/google/cloud/tpu/v2/GetRuntimeVersionRequest.java   | 2 +-
 .../cloud/tpu/v2/GetRuntimeVersionRequestOrBuilder.java     | 2 +-
 .../main/java/com/google/cloud/tpu/v2/GuestAttributes.java  | 2 +-
 .../java/com/google/cloud/tpu/v2/GuestAttributesEntry.java  | 2 +-
 .../google/cloud/tpu/v2/GuestAttributesEntryOrBuilder.java  | 2 +-
 .../com/google/cloud/tpu/v2/GuestAttributesOrBuilder.java   | 2 +-
 .../java/com/google/cloud/tpu/v2/GuestAttributesValue.java  | 2 +-
 .../google/cloud/tpu/v2/GuestAttributesValueOrBuilder.java  | 2 +-
 .../google/cloud/tpu/v2/ListAcceleratorTypesRequest.java    | 2 +-
 .../cloud/tpu/v2/ListAcceleratorTypesRequestOrBuilder.java  | 2 +-
 .../google/cloud/tpu/v2/ListAcceleratorTypesResponse.java   | 2 +-
 .../cloud/tpu/v2/ListAcceleratorTypesResponseOrBuilder.java | 2 +-
 .../main/java/com/google/cloud/tpu/v2/ListNodesRequest.java | 2 +-
 .../com/google/cloud/tpu/v2/ListNodesRequestOrBuilder.java  | 2 +-
 .../java/com/google/cloud/tpu/v2/ListNodesResponse.java     | 2 +-
 .../com/google/cloud/tpu/v2/ListNodesResponseOrBuilder.java | 2 +-
 .../com/google/cloud/tpu/v2/ListRuntimeVersionsRequest.java | 2 +-
 .../cloud/tpu/v2/ListRuntimeVersionsRequestOrBuilder.java   | 2 +-
 .../google/cloud/tpu/v2/ListRuntimeVersionsResponse.java    | 2 +-
 .../cloud/tpu/v2/ListRuntimeVersionsResponseOrBuilder.java  | 2 +-
 .../main/java/com/google/cloud/tpu/v2/NetworkConfig.java    | 2 +-
 .../com/google/cloud/tpu/v2/NetworkConfigOrBuilder.java     | 2 +-
 .../main/java/com/google/cloud/tpu/v2/NetworkEndpoint.java  | 2 +-
 .../com/google/cloud/tpu/v2/NetworkEndpointOrBuilder.java   | 2 +-
 .../src/main/java/com/google/cloud/tpu/v2/Node.java         | 6 +++---
 .../main/java/com/google/cloud/tpu/v2/NodeOrBuilder.java    | 2 +-
 .../java/com/google/cloud/tpu/v2/OperationMetadata.java     | 2 +-
 .../com/google/cloud/tpu/v2/OperationMetadataOrBuilder.java | 2 +-
 .../main/java/com/google/cloud/tpu/v2/RuntimeVersion.java   | 2 +-
 .../com/google/cloud/tpu/v2/RuntimeVersionOrBuilder.java    | 2 +-
 .../main/java/com/google/cloud/tpu/v2/SchedulingConfig.java | 2 +-
 .../com/google/cloud/tpu/v2/SchedulingConfigOrBuilder.java  | 2 +-
 .../main/java/com/google/cloud/tpu/v2/ServiceAccount.java   | 2 +-
 .../com/google/cloud/tpu/v2/ServiceAccountOrBuilder.java    | 2 +-
 .../main/java/com/google/cloud/tpu/v2/ServiceIdentity.java  | 2 +-
 .../com/google/cloud/tpu/v2/ServiceIdentityOrBuilder.java   | 2 +-
 .../com/google/cloud/tpu/v2/ShieldedInstanceConfig.java     | 2 +-
 .../cloud/tpu/v2/ShieldedInstanceConfigOrBuilder.java       | 2 +-
 .../main/java/com/google/cloud/tpu/v2/StartNodeRequest.java | 2 +-
 .../com/google/cloud/tpu/v2/StartNodeRequestOrBuilder.java  | 2 +-
 .../main/java/com/google/cloud/tpu/v2/StopNodeRequest.java  | 2 +-
 .../com/google/cloud/tpu/v2/StopNodeRequestOrBuilder.java   | 2 +-
 .../src/main/java/com/google/cloud/tpu/v2/Symptom.java      | 2 +-
 .../main/java/com/google/cloud/tpu/v2/SymptomOrBuilder.java | 2 +-
 .../java/com/google/cloud/tpu/v2/UpdateNodeRequest.java     | 2 +-
 .../com/google/cloud/tpu/v2/UpdateNodeRequestOrBuilder.java | 2 +-
 .../src/main/proto/google/cloud/tpu/v2/cloud_tpu.proto      | 2 +-
 .../com/google/cloud/tpu/v2alpha1/AcceleratorConfig.java    | 2 +-
 .../cloud/tpu/v2alpha1/AcceleratorConfigOrBuilder.java      | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/AcceleratorType.java | 2 +-
 .../google/cloud/tpu/v2alpha1/AcceleratorTypeOrBuilder.java | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/AccessConfig.java    | 2 +-
 .../google/cloud/tpu/v2alpha1/AccessConfigOrBuilder.java    | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/AttachedDisk.java    | 2 +-
 .../google/cloud/tpu/v2alpha1/AttachedDiskOrBuilder.java    | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/CloudTpuProto.java   | 2 +-
 .../com/google/cloud/tpu/v2alpha1/CreateNodeRequest.java    | 2 +-
 .../cloud/tpu/v2alpha1/CreateNodeRequestOrBuilder.java      | 2 +-
 .../cloud/tpu/v2alpha1/CreateQueuedResourceRequest.java     | 2 +-
 .../tpu/v2alpha1/CreateQueuedResourceRequestOrBuilder.java  | 2 +-
 .../com/google/cloud/tpu/v2alpha1/DeleteNodeRequest.java    | 2 +-
 .../cloud/tpu/v2alpha1/DeleteNodeRequestOrBuilder.java      | 2 +-
 .../cloud/tpu/v2alpha1/DeleteQueuedResourceRequest.java     | 2 +-
 .../tpu/v2alpha1/DeleteQueuedResourceRequestOrBuilder.java  | 2 +-
 .../cloud/tpu/v2alpha1/GenerateServiceIdentityRequest.java  | 2 +-
 .../v2alpha1/GenerateServiceIdentityRequestOrBuilder.java   | 2 +-
 .../cloud/tpu/v2alpha1/GenerateServiceIdentityResponse.java | 2 +-
 .../v2alpha1/GenerateServiceIdentityResponseOrBuilder.java  | 2 +-
 .../cloud/tpu/v2alpha1/GetAcceleratorTypeRequest.java       | 2 +-
 .../tpu/v2alpha1/GetAcceleratorTypeRequestOrBuilder.java    | 2 +-
 .../cloud/tpu/v2alpha1/GetGuestAttributesRequest.java       | 2 +-
 .../tpu/v2alpha1/GetGuestAttributesRequestOrBuilder.java    | 2 +-
 .../cloud/tpu/v2alpha1/GetGuestAttributesResponse.java      | 2 +-
 .../tpu/v2alpha1/GetGuestAttributesResponseOrBuilder.java   | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/GetNodeRequest.java  | 2 +-
 .../google/cloud/tpu/v2alpha1/GetNodeRequestOrBuilder.java  | 2 +-
 .../google/cloud/tpu/v2alpha1/GetQueuedResourceRequest.java | 2 +-
 .../tpu/v2alpha1/GetQueuedResourceRequestOrBuilder.java     | 2 +-
 .../google/cloud/tpu/v2alpha1/GetRuntimeVersionRequest.java | 2 +-
 .../tpu/v2alpha1/GetRuntimeVersionRequestOrBuilder.java     | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/GuestAttributes.java | 2 +-
 .../com/google/cloud/tpu/v2alpha1/GuestAttributesEntry.java | 2 +-
 .../cloud/tpu/v2alpha1/GuestAttributesEntryOrBuilder.java   | 2 +-
 .../google/cloud/tpu/v2alpha1/GuestAttributesOrBuilder.java | 2 +-
 .../com/google/cloud/tpu/v2alpha1/GuestAttributesValue.java | 2 +-
 .../cloud/tpu/v2alpha1/GuestAttributesValueOrBuilder.java   | 2 +-
 .../cloud/tpu/v2alpha1/ListAcceleratorTypesRequest.java     | 2 +-
 .../tpu/v2alpha1/ListAcceleratorTypesRequestOrBuilder.java  | 2 +-
 .../cloud/tpu/v2alpha1/ListAcceleratorTypesResponse.java    | 2 +-
 .../tpu/v2alpha1/ListAcceleratorTypesResponseOrBuilder.java | 2 +-
 .../com/google/cloud/tpu/v2alpha1/ListNodesRequest.java     | 2 +-
 .../cloud/tpu/v2alpha1/ListNodesRequestOrBuilder.java       | 2 +-
 .../com/google/cloud/tpu/v2alpha1/ListNodesResponse.java    | 2 +-
 .../cloud/tpu/v2alpha1/ListNodesResponseOrBuilder.java      | 2 +-
 .../cloud/tpu/v2alpha1/ListQueuedResourcesRequest.java      | 2 +-
 .../tpu/v2alpha1/ListQueuedResourcesRequestOrBuilder.java   | 2 +-
 .../cloud/tpu/v2alpha1/ListQueuedResourcesResponse.java     | 2 +-
 .../tpu/v2alpha1/ListQueuedResourcesResponseOrBuilder.java  | 2 +-
 .../cloud/tpu/v2alpha1/ListRuntimeVersionsRequest.java      | 2 +-
 .../tpu/v2alpha1/ListRuntimeVersionsRequestOrBuilder.java   | 2 +-
 .../cloud/tpu/v2alpha1/ListRuntimeVersionsResponse.java     | 2 +-
 .../tpu/v2alpha1/ListRuntimeVersionsResponseOrBuilder.java  | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/NetworkConfig.java   | 2 +-
 .../google/cloud/tpu/v2alpha1/NetworkConfigOrBuilder.java   | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/NetworkEndpoint.java | 2 +-
 .../google/cloud/tpu/v2alpha1/NetworkEndpointOrBuilder.java | 2 +-
 .../src/main/java/com/google/cloud/tpu/v2alpha1/Node.java   | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/NodeOrBuilder.java   | 2 +-
 .../com/google/cloud/tpu/v2alpha1/OperationMetadata.java    | 2 +-
 .../cloud/tpu/v2alpha1/OperationMetadataOrBuilder.java      | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/QueuedResource.java  | 2 +-
 .../google/cloud/tpu/v2alpha1/QueuedResourceOrBuilder.java  | 2 +-
 .../com/google/cloud/tpu/v2alpha1/QueuedResourceState.java  | 2 +-
 .../cloud/tpu/v2alpha1/QueuedResourceStateOrBuilder.java    | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/RuntimeVersion.java  | 2 +-
 .../google/cloud/tpu/v2alpha1/RuntimeVersionOrBuilder.java  | 2 +-
 .../com/google/cloud/tpu/v2alpha1/SchedulingConfig.java     | 2 +-
 .../cloud/tpu/v2alpha1/SchedulingConfigOrBuilder.java       | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/ServiceAccount.java  | 2 +-
 .../google/cloud/tpu/v2alpha1/ServiceAccountOrBuilder.java  | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/ServiceIdentity.java | 2 +-
 .../google/cloud/tpu/v2alpha1/ServiceIdentityOrBuilder.java | 2 +-
 .../google/cloud/tpu/v2alpha1/ShieldedInstanceConfig.java   | 2 +-
 .../cloud/tpu/v2alpha1/ShieldedInstanceConfigOrBuilder.java | 2 +-
 .../cloud/tpu/v2alpha1/SimulateMaintenanceEventRequest.java | 2 +-
 .../v2alpha1/SimulateMaintenanceEventRequestOrBuilder.java  | 2 +-
 .../com/google/cloud/tpu/v2alpha1/StartNodeRequest.java     | 2 +-
 .../cloud/tpu/v2alpha1/StartNodeRequestOrBuilder.java       | 2 +-
 .../java/com/google/cloud/tpu/v2alpha1/StopNodeRequest.java | 2 +-
 .../google/cloud/tpu/v2alpha1/StopNodeRequestOrBuilder.java | 2 +-
 .../main/java/com/google/cloud/tpu/v2alpha1/Symptom.java    | 2 +-
 .../com/google/cloud/tpu/v2alpha1/SymptomOrBuilder.java     | 2 +-
 .../com/google/cloud/tpu/v2alpha1/UpdateNodeRequest.java    | 2 +-
 .../cloud/tpu/v2alpha1/UpdateNodeRequestOrBuilder.java      | 2 +-
 206 files changed, 209 insertions(+), 209 deletions(-)

diff --git a/java-tpu/README.md b/java-tpu/README.md
index fefde41b55a5..3b9e459b82c9 100644
--- a/java-tpu/README.md
+++ b/java-tpu/README.md
@@ -20,7 +20,7 @@ If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file:
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>libraries-bom</artifactId>
-      <version>26.16.0</version>
+      <version>26.18.0</version>
       <type>pom</type>
       <scope>import</scope>
     </dependency>
@@ -195,7 +195,7 @@ Java is a registered trademark of Oracle and/or its affiliates.
 [kokoro-badge-link-5]: http://storage.googleapis.com/cloud-devrel-public/java/badges/google-cloud-java/java11.html
 [stability-image]: https://img.shields.io/badge/stability-stable-green
 [maven-version-image]: https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-tpu.svg
-[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-tpu/2.19.0
+[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-tpu/2.21.0
 [authentication]: https://github.com/googleapis/google-cloud-java#authentication
 [auth-scopes]: https://developers.google.com/identity/protocols/oauth2/scopes
 [predefined-iam-roles]: https://cloud.google.com/iam/docs/understanding-roles#predefined_roles
diff --git a/java-tpu/grpc-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TpuGrpc.java b/java-tpu/grpc-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TpuGrpc.java
index 69c3168c5420..437e89103615 100644
--- a/java-tpu/grpc-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TpuGrpc.java
+++ b/java-tpu/grpc-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TpuGrpc.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/grpc-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/TpuGrpc.java b/java-tpu/grpc-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/TpuGrpc.java
index 41b5b2c500b6..991ebf093dc1 100644
--- a/java-tpu/grpc-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/TpuGrpc.java
+++ b/java-tpu/grpc-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/TpuGrpc.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/grpc-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/TpuGrpc.java b/java-tpu/grpc-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/TpuGrpc.java
index 1beb317c5dec..136035d608d4 100644
--- a/java-tpu/grpc-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/TpuGrpc.java
+++ b/java-tpu/grpc-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/TpuGrpc.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorType.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorType.java
index e37c475fbd80..b12dd8bc823f 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorType.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorType.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorTypeOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorTypeOrBuilder.java
index d9a66a858e47..53d98d2a798f 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorTypeOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorTypeOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CloudTpuProto.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CloudTpuProto.java
index 166a2a83d357..7807a3149a69 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CloudTpuProto.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CloudTpuProto.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequest.java
index bde97863155c..c673f8d54ea4 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequestOrBuilder.java
index 2f6aae517a8c..aca76e7ddba7 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequest.java
index e655d9b9104f..b5c729bed7fb 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequestOrBuilder.java
index cca7435f8d84..1bbbe44b2539 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequest.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequest.java
index c3e027dd3cd3..c14a3caf7359 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequestOrBuilder.java
index 236bc019d8bc..04f2a7ebae82 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequest.java
index 52cbd10fee9b..957e80c925a5 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequestOrBuilder.java
index 283d187a5fbe..c867dcf1ff88 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequest.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequest.java
index fde1996ddfeb..e62141cc1ab3 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequestOrBuilder.java
index ed5597d5bf9f..037b21224474 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequest.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequest.java
index 97b28f931fbc..2798e2b0549b 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequestOrBuilder.java
index d2b5e3b447ba..8a455666aa5d 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponse.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponse.java
index 078318ba3c50..b800e703d54b 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponseOrBuilder.java
index 22c7fea3df5a..d3fe2e40b1e3 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequest.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequest.java
index 44e318323024..bf8d999c8de0 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequestOrBuilder.java
index fdd37af64506..606e371dd553 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponse.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponse.java
index e0553acd00f9..6999e66f25e0 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponseOrBuilder.java
index 64efc2a93b5a..4f59d989ad06 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequest.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequest.java
index ec449cf448dd..c85810f921fa 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequestOrBuilder.java
index 98a6e4d49c4d..d206abc23f43 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponse.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponse.java
index 9f956da7eb10..25fa7e4728f5 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponseOrBuilder.java
index 15d27ff3f5cb..429a7b68dbbe 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpoint.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpoint.java
index a78c4b501042..8beca07d2ce4 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpoint.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpoint.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpointOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpointOrBuilder.java
index 02f2f949146b..b131be4eac2b 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpointOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpointOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Node.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Node.java
index 7cd2b28fc85c..7fd6b7b2e719 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Node.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Node.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NodeOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NodeOrBuilder.java
index ae3b78bbac00..6c5b14bb7823 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NodeOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NodeOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadata.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadata.java
index cbf6ea87f3be..42c2acf56089 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadata.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadata.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadataOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadataOrBuilder.java
index 8192fc69b200..f196b1d83b4f 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadataOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadataOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequest.java
index 1b6f67f7cab7..1da409ff222a 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequestOrBuilder.java
index e44a725d493f..69ca6a488119 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfig.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfig.java
index 9970967dc70d..43e248338855 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfig.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfigOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfigOrBuilder.java
index d747b81c351f..94e1767076e2 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfigOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfigOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequest.java
index f533fd42570b..4d26314ce8b9 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequestOrBuilder.java
index 23baa871358e..fed9a63e3313 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequest.java
index 06561343fb4f..705a17c678ce 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequestOrBuilder.java
index e340f41716e2..1e5042fce177 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Symptom.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Symptom.java
index 2d0ee486229b..32fce034140f 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Symptom.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Symptom.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SymptomOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SymptomOrBuilder.java
index 72ba143f550d..6a6181d0a857 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SymptomOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SymptomOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersion.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersion.java
index 733a69b59af8..8491d3bd96ca 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersion.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersion.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersionOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersionOrBuilder.java
index 7192ca2da720..702b4b067223 100644
--- a/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersionOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersionOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorConfig.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorConfig.java
index 02ba3aab2556..7ed8feae480f 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorConfig.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorConfigOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorConfigOrBuilder.java
index 3e43b7e0d252..128e10583c7a 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorConfigOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorConfigOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorType.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorType.java
index 26bdae03db09..2189c4ccd66b 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorType.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorType.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorTypeOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorTypeOrBuilder.java
index 9ef9c25ea900..17edcf58e9f2 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorTypeOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorTypeOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AccessConfig.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AccessConfig.java
index 0604bc1b0d04..539549e01692 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AccessConfig.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AccessConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AccessConfigOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AccessConfigOrBuilder.java
index c6fca0ebe20c..0010e6983ef5 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AccessConfigOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AccessConfigOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AttachedDisk.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AttachedDisk.java
index e8289f9f54ed..174ef6151322 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AttachedDisk.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AttachedDisk.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AttachedDiskOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AttachedDiskOrBuilder.java
index 013905493c57..a6167ae7391e 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AttachedDiskOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AttachedDiskOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/CloudTpuProto.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/CloudTpuProto.java
index e49467822f4d..f1b1f9c45830 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/CloudTpuProto.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/CloudTpuProto.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/CreateNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/CreateNodeRequest.java
index 9b323d2b4101..89e7357f35ea 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/CreateNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/CreateNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/CreateNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/CreateNodeRequestOrBuilder.java
index f3894c0f6a26..9f8fad8324fb 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/CreateNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/CreateNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/DeleteNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/DeleteNodeRequest.java
index e93e5248ece8..f7900f26cd02 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/DeleteNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/DeleteNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/DeleteNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/DeleteNodeRequestOrBuilder.java
index e146d9dd5bea..9954e5864309 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/DeleteNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/DeleteNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityRequest.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityRequest.java
index 3e834ddaea6d..cff205e3e6cd 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityRequestOrBuilder.java
index 0de9c57228a2..cf47df7b4387 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityResponse.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityResponse.java
index 97475c03e4c0..1625702d2789 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityResponseOrBuilder.java
index 420ea7741f40..1b6b7e1d80a9 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GenerateServiceIdentityResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetAcceleratorTypeRequest.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetAcceleratorTypeRequest.java
index 1b77af599ca3..92209e5516e0 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetAcceleratorTypeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetAcceleratorTypeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetAcceleratorTypeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetAcceleratorTypeRequestOrBuilder.java
index 7c96b0611f1b..26f8e96facc1 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetAcceleratorTypeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetAcceleratorTypeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesRequest.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesRequest.java
index 30195f688108..9a80a08b0658 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesRequestOrBuilder.java
index 40b183f26e4c..1c323386c247 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesResponse.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesResponse.java
index 9a39f9b90e51..7beb5826ac4d 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesResponseOrBuilder.java
index 97e57f40ae01..77f9bac0706f 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetGuestAttributesResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetNodeRequest.java
index 22d956ee3b05..0854d1885dbb 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetNodeRequestOrBuilder.java
index db08fdb1a071..3cdb4214f643 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetRuntimeVersionRequest.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetRuntimeVersionRequest.java
index dbb907b9003e..a6dd273bbf82 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetRuntimeVersionRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetRuntimeVersionRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetRuntimeVersionRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetRuntimeVersionRequestOrBuilder.java
index 644774bdf54f..4b3b8c60e971 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetRuntimeVersionRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GetRuntimeVersionRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributes.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributes.java
index 2c8ff44c8287..fcd2e069cf2b 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributes.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributes.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesEntry.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesEntry.java
index dd23a090a686..b351f1e6ba3d 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesEntry.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesEntry.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesEntryOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesEntryOrBuilder.java
index 3e862f99218c..9272d7f4f8ed 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesEntryOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesEntryOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesOrBuilder.java
index 800a4bcd0147..1f256ce608b6 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesValue.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesValue.java
index 53c6365ac4fa..0563f8c6796d 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesValue.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesValue.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesValueOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesValueOrBuilder.java
index fb75e87660b2..02f79558f4e2 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesValueOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/GuestAttributesValueOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesRequest.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesRequest.java
index db7f0b56675a..fb93112f87d7 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesRequestOrBuilder.java
index 60fd80c81c46..ff12fe972e16 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesResponse.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesResponse.java
index 41d1138f9d7a..8d25e1e6363f 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesResponseOrBuilder.java
index 49b166c69189..e7aae549f8e5 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListAcceleratorTypesResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesRequest.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesRequest.java
index e1a3fbcb1e06..7c6e5f6fd0d8 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesRequestOrBuilder.java
index 210748b76069..77b72cb260d1 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesResponse.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesResponse.java
index 9ccbf62b92c5..925c911a5fa9 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesResponseOrBuilder.java
index 4ec319767836..906e09540e6f 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListNodesResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsRequest.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsRequest.java
index 57523b4012f8..c463779cc74e 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsRequestOrBuilder.java
index 5ffc73a137a0..a39220f43dde 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsResponse.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsResponse.java
index 39d3eeddc47d..0f39fa303e61 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsResponseOrBuilder.java
index ba15692d5d8b..898f456c2e00 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ListRuntimeVersionsResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkConfig.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkConfig.java
index a70af4b431c5..49128a256e65 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkConfig.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkConfigOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkConfigOrBuilder.java
index e8489117651c..b1d85de2ed16 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkConfigOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkConfigOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkEndpoint.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkEndpoint.java
index 3470fe1c445d..f2d2e3809835 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkEndpoint.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkEndpoint.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkEndpointOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkEndpointOrBuilder.java
index 9f14e96890a9..d2b7d9f2cd9a 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkEndpointOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkEndpointOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/Node.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/Node.java
index bc69b0c120c6..0765fd47a344 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/Node.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/Node.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -161,7 +161,7 @@ public enum State implements com.google.protobuf.ProtocolMessageEnum {
      *
      * <pre>
      * TPU node is being repaired and may be unusable. Details can be
-     * found in the `help_description` field.
+     * found in the 'help_description' field.
      * </pre>
      *
      * <code>REPAIRING = 6;</code>
@@ -316,7 +316,7 @@ public enum State implements com.google.protobuf.ProtocolMessageEnum {
      *
      * <pre>
      * TPU node is being repaired and may be unusable. Details can be
-     * found in the `help_description` field.
+     * found in the 'help_description' field.
      * </pre>
      *
      * <code>REPAIRING = 6;</code>
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NodeOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NodeOrBuilder.java
index e5759affb56c..58ce33bf484b 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NodeOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NodeOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/OperationMetadata.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/OperationMetadata.java
index 4be881160ef1..9e2a7acd1e84 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/OperationMetadata.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/OperationMetadata.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/OperationMetadataOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/OperationMetadataOrBuilder.java
index 016c8388fb32..4d68d4e0330e 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/OperationMetadataOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/OperationMetadataOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/RuntimeVersion.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/RuntimeVersion.java
index 2f1ad980acd8..e0d899ea4c42 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/RuntimeVersion.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/RuntimeVersion.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/RuntimeVersionOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/RuntimeVersionOrBuilder.java
index aef8c1340299..88c321c75b59 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/RuntimeVersionOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/RuntimeVersionOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/SchedulingConfig.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/SchedulingConfig.java
index d8d9ed0f8a9e..8c4dc0ec1eeb 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/SchedulingConfig.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/SchedulingConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/SchedulingConfigOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/SchedulingConfigOrBuilder.java
index 096d097ca4b5..dbef1ce2aac3 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/SchedulingConfigOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/SchedulingConfigOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceAccount.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceAccount.java
index 83c06d0f3e85..ee6c213845ac 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceAccount.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceAccount.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceAccountOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceAccountOrBuilder.java
index c345475324a7..4f314447f585 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceAccountOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceAccountOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceIdentity.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceIdentity.java
index 5e347ee5d446..d3337cdc5e6b 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceIdentity.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceIdentity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceIdentityOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceIdentityOrBuilder.java
index 35c32f670401..849d9989749f 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceIdentityOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ServiceIdentityOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ShieldedInstanceConfig.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ShieldedInstanceConfig.java
index c19e89a965b2..344b93766383 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ShieldedInstanceConfig.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ShieldedInstanceConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ShieldedInstanceConfigOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ShieldedInstanceConfigOrBuilder.java
index 59f73cb36744..279e65fdeb17 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ShieldedInstanceConfigOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/ShieldedInstanceConfigOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StartNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StartNodeRequest.java
index 57ab8711307b..2a6c309e0f5f 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StartNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StartNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StartNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StartNodeRequestOrBuilder.java
index 51ce756924c5..551433e7bb06 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StartNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StartNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StopNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StopNodeRequest.java
index 039522cf81a9..07f511f5a0b0 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StopNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StopNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StopNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StopNodeRequestOrBuilder.java
index 85a6ce1dd4f5..8c7032f3ab06 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StopNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/StopNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/Symptom.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/Symptom.java
index e12c87acaf89..ef02c7028be6 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/Symptom.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/Symptom.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/SymptomOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/SymptomOrBuilder.java
index 211b9dfd87b4..fadddf36b2c0 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/SymptomOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/SymptomOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/UpdateNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/UpdateNodeRequest.java
index 3374ddfd25a1..a352f623c026 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/UpdateNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/UpdateNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/UpdateNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/UpdateNodeRequestOrBuilder.java
index e896002d359c..73f07cd741ce 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/UpdateNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/UpdateNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2/src/main/proto/google/cloud/tpu/v2/cloud_tpu.proto b/java-tpu/proto-google-cloud-tpu-v2/src/main/proto/google/cloud/tpu/v2/cloud_tpu.proto
index cc2aabfe7912..66667d8353e4 100644
--- a/java-tpu/proto-google-cloud-tpu-v2/src/main/proto/google/cloud/tpu/v2/cloud_tpu.proto
+++ b/java-tpu/proto-google-cloud-tpu-v2/src/main/proto/google/cloud/tpu/v2/cloud_tpu.proto
@@ -313,7 +313,7 @@ message Node {
     DELETING = 5;
 
     // TPU node is being repaired and may be unusable. Details can be
-    // found in the `help_description` field.
+    // found in the 'help_description' field.
     REPAIRING = 6;
 
     // TPU node is stopped.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorConfig.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorConfig.java
index a8dfcc9c070b..349d4a6cb231 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorConfig.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorConfigOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorConfigOrBuilder.java
index 803c12c17c7f..bf6c62115903 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorConfigOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorConfigOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorType.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorType.java
index fd8803757ff8..0f0005d21bef 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorType.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorType.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorTypeOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorTypeOrBuilder.java
index 853ffbdeb8a2..0e89176f0f7d 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorTypeOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorTypeOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfig.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfig.java
index 8316645ddf97..38dc528b98c3 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfig.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfigOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfigOrBuilder.java
index 3ff4351e51d5..739d957c7e9e 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfigOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfigOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDisk.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDisk.java
index dcc53c37c838..289e9fc8c5f7 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDisk.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDisk.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDiskOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDiskOrBuilder.java
index b7aebddde19b..872b5475b489 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDiskOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDiskOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CloudTpuProto.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CloudTpuProto.java
index 3c27bd6b3598..5cfbf887b09c 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CloudTpuProto.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CloudTpuProto.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequest.java
index d327b37c08bc..a9ef19989773 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequestOrBuilder.java
index 122d2b9d295e..8975e9aca38c 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateQueuedResourceRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateQueuedResourceRequest.java
index 24f9da64ca8d..d4ed3c679471 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateQueuedResourceRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateQueuedResourceRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateQueuedResourceRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateQueuedResourceRequestOrBuilder.java
index 00332158714b..1fc811e4cb4d 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateQueuedResourceRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateQueuedResourceRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequest.java
index 53963407f29b..0da473ef1c64 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequestOrBuilder.java
index da7dfa7505e2..1f3b0919e9a3 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteQueuedResourceRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteQueuedResourceRequest.java
index e6d0576b54c9..acf687d6792f 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteQueuedResourceRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteQueuedResourceRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteQueuedResourceRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteQueuedResourceRequestOrBuilder.java
index fe703ffd6b12..0efd5977f1db 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteQueuedResourceRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteQueuedResourceRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequest.java
index 0f7c7f2573f2..07a47cad7267 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequestOrBuilder.java
index 042477062e60..92ee057d1f40 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponse.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponse.java
index 68d82a4e0b6e..30f5301b36e1 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponseOrBuilder.java
index f6187e11e0a6..47c8b67c7126 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequest.java
index 2b3383a30086..dd02d1e4e1b5 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequestOrBuilder.java
index 67b073762756..b413e13ff0e6 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequest.java
index 7ff259606786..f5ad70f10e22 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequestOrBuilder.java
index 27f8fc2ae1d0..49bfb307f587 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponse.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponse.java
index eac32f065029..f8a4024439ef 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponseOrBuilder.java
index cdfa7425d3e8..9a3207214f86 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequest.java
index 199337e6bbfb..982e49fbbab9 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequestOrBuilder.java
index 736eca1d4a67..5e675e8f52d0 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetQueuedResourceRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetQueuedResourceRequest.java
index 0836d5dbd5d2..3dc91cdb7913 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetQueuedResourceRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetQueuedResourceRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetQueuedResourceRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetQueuedResourceRequestOrBuilder.java
index 633cbef6c24d..d72cd1c4b1ae 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetQueuedResourceRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetQueuedResourceRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequest.java
index 77e761b7a86d..5ba3d81e1e00 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequestOrBuilder.java
index 4a05c691b07e..8d194f40225d 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributes.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributes.java
index f3ef930c052b..5ae342f87fee 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributes.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributes.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntry.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntry.java
index 2c41ba13403b..620d85d3717c 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntry.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntry.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntryOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntryOrBuilder.java
index 8860e13076f0..4aa2b9ed89b8 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntryOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntryOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesOrBuilder.java
index 62180b5195d1..977761e3ec9e 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValue.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValue.java
index 30e1a3a42b56..bc102690caf8 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValue.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValue.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValueOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValueOrBuilder.java
index 4a7326237d67..ced1b6f09559 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValueOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValueOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequest.java
index 048bde7ddf44..f0105666a5d6 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequestOrBuilder.java
index 491c119887f9..51630be7a8aa 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponse.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponse.java
index f91d4491d8af..e1dc4d17b461 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponseOrBuilder.java
index 7865d157b9e9..2e27556fa605 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequest.java
index 73b0b23aad9b..4ba4d7c17b60 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequestOrBuilder.java
index 66910ddbb0cd..726914562795 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponse.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponse.java
index c2187c37ac78..3533c71abbff 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponseOrBuilder.java
index 7922b1ee0a15..69c83f108135 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesRequest.java
index 8af8ddbe8d1d..b06c32349907 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesRequestOrBuilder.java
index 9fc4661ade68..5ea2441d2869 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesResponse.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesResponse.java
index c698dbf4086b..db8f4d728ad1 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesResponseOrBuilder.java
index f01f464b03bb..a0183666242c 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListQueuedResourcesResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequest.java
index 1384760709df..bfd80fe21d01 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequestOrBuilder.java
index 115c5374b8c3..3c6d7c486f88 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponse.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponse.java
index 8052c1c5fcbe..d72c7f20d26f 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponse.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponse.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponseOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponseOrBuilder.java
index 86f9ef995705..81195d0744e3 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponseOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponseOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfig.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfig.java
index 2fc3aca5b5c5..edd36a5e7668 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfig.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfigOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfigOrBuilder.java
index cb262342c834..5b4ce1c941eb 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfigOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfigOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpoint.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpoint.java
index 676c56d85af8..d0d53c0e4ccc 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpoint.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpoint.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpointOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpointOrBuilder.java
index 82c95167f742..7f4d214f1d5f 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpointOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpointOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Node.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Node.java
index 6115566022f7..78329e8d0de4 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Node.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Node.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NodeOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NodeOrBuilder.java
index a708ae42b8b3..39923477da7f 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NodeOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NodeOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadata.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadata.java
index a85829a447b2..2a263a8b5468 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadata.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadata.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadataOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadataOrBuilder.java
index 57e0d5d40321..c222f4d29cc5 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadataOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadataOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResource.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResource.java
index a6578207902c..f0064da61dd3 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResource.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResourceOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResourceOrBuilder.java
index cdbc4cdba40f..9d75f194ee96 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResourceOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResourceOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResourceState.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResourceState.java
index 00543ca48560..3c40fa68acba 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResourceState.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResourceState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResourceStateOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResourceStateOrBuilder.java
index 38bae0925e75..39a59795aa8e 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResourceStateOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResourceStateOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersion.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersion.java
index 32d8ea7d86fe..f93fd8d13f3f 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersion.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersion.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersionOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersionOrBuilder.java
index 06fc731dd3cd..6de48b404c3a 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersionOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersionOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfig.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfig.java
index cd5f5c263368..0c4612054e44 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfig.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfigOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfigOrBuilder.java
index 4f174ebe747d..e01fd5f9b3c3 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfigOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfigOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccount.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccount.java
index bed725d4e047..6435e2046df0 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccount.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccount.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccountOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccountOrBuilder.java
index 34e4ff1082bf..c3ec09a65eb2 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccountOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccountOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentity.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentity.java
index fe6e8aee4b95..08a5393c6eb9 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentity.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentityOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentityOrBuilder.java
index 41e7346d40ba..2cc4563ff652 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentityOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentityOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfig.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfig.java
index f5adfb7a8bf1..f9a54f2f9e73 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfig.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfigOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfigOrBuilder.java
index 6172d0e72cd5..db7e292c160a 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfigOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfigOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SimulateMaintenanceEventRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SimulateMaintenanceEventRequest.java
index af0e017b95b6..0dbd9b7e52dc 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SimulateMaintenanceEventRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SimulateMaintenanceEventRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SimulateMaintenanceEventRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SimulateMaintenanceEventRequestOrBuilder.java
index f2d12a2d72ea..fdbe8f6e47a0 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SimulateMaintenanceEventRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SimulateMaintenanceEventRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequest.java
index 26d624cc20ec..fb2af51183fa 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequestOrBuilder.java
index dd57e32134c3..51b824874d1e 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequest.java
index c07948d8b8a2..189586a4ec89 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequestOrBuilder.java
index bda150b96734..4d6bba1dc4f8 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Symptom.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Symptom.java
index 3ed91d827712..cc6b120be8e4 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Symptom.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Symptom.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SymptomOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SymptomOrBuilder.java
index 8d3ee93ede84..72dced939603 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SymptomOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SymptomOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequest.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequest.java
index 8227e01b9367..773a0d04055b 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequest.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequestOrBuilder.java b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequestOrBuilder.java
index f60b96550aad..d53d6c3a5e5a 100644
--- a/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequestOrBuilder.java
+++ b/java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequestOrBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.