diff --git a/.github/readme/synth.metadata/synth.metadata b/.github/readme/synth.metadata/synth.metadata
index d52478a8..a135be94 100644
--- a/.github/readme/synth.metadata/synth.metadata
+++ b/.github/readme/synth.metadata/synth.metadata
@@ -4,14 +4,14 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-workflows.git",
-        "sha": "d1281f34a35ea41201380b616c93d33d9bdeeb5f"
+        "sha": "2d7d5e1f8adb0e9c687893119842b1a3def75771"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "79ab0b44a2cc7d803d07c107f9faf07729fc4012"
+        "sha": "2e7bd5cc66a3f0b90ce1c150eb35c89eeb9872d6"
       }
     }
   ]
diff --git a/.github/workflows/auto-release.yaml b/.github/workflows/auto-release.yaml
index 7c8816a7..9b4fd4d8 100644
--- a/.github/workflows/auto-release.yaml
+++ b/.github/workflows/auto-release.yaml
@@ -16,8 +16,8 @@ jobs:
             return;
           }
 
-          // only approve PRs like "chore(master): release <release version>"
-          if ( !context.payload.pull_request.title.startsWith("chore(master): release") ) {
+          // only approve PRs like "chore: release <release version>"
+          if ( !context.payload.pull_request.title.startsWith("chore: release") ) {
             return;
           }
 
diff --git a/.kokoro/release/publish_javadoc.cfg b/.kokoro/release/publish_javadoc.cfg
index d46041cf..70f7f7a8 100644
--- a/.kokoro/release/publish_javadoc.cfg
+++ b/.kokoro/release/publish_javadoc.cfg
@@ -7,12 +7,6 @@ env_vars: {
   value: "docs-staging"
 }
 
-# cloud-rad staging
-env_vars: {
-  key: "STAGING_BUCKET_V2"
-  value: "docs-staging-v2-staging"
-}
-
 env_vars: {
   key: "TRAMPOLINE_BUILD_FILE"
   value: "github/java-workflows/.kokoro/release/publish_javadoc.sh"
@@ -26,4 +20,4 @@ before_action {
       keyname: "docuploader_service_account"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/.kokoro/release/publish_javadoc.sh b/.kokoro/release/publish_javadoc.sh
index f0933ab2..c7901b81 100755
--- a/.kokoro/release/publish_javadoc.sh
+++ b/.kokoro/release/publish_javadoc.sh
@@ -56,22 +56,3 @@ python3 -m docuploader create-metadata \
 python3 -m docuploader upload . \
   --credentials ${CREDENTIALS} \
   --staging-bucket ${STAGING_BUCKET}
-
-popd
-
-# V2 due to problems w/ the released javadoc plugin doclava, Java 8 is required.  Beware of accidental updates.
-
-mvn clean site -B -q -Ddevsite.template="${KOKORO_GFILE_DIR}/java/"
-
-pushd target/devsite/reference
-
-# create metadata
-python3 -m docuploader create-metadata \
-  --name ${NAME} \
-  --version ${VERSION} \
-  --language java
-
-# upload docs to staging bucket
-python3 -m docuploader upload . \
-  --credentials ${CREDENTIALS} \
-  --staging-bucket ${STAGING_BUCKET_V2}
diff --git a/.kokoro/release/publish_javadoc11.sh b/.kokoro/release/publish_javadoc11.sh
index ff3e0b85..abfa2f04 100755
--- a/.kokoro/release/publish_javadoc11.sh
+++ b/.kokoro/release/publish_javadoc11.sh
@@ -40,6 +40,9 @@ export VERSION=$(grep ${NAME}: versions.txt | cut -d: -f3)
 # generate yml
 mvn clean site -B -q -P docFX
 
+# copy README to docfx-yml dir and rename index.md
+cp README.md target/docfx-yml/index.md
+
 pushd target/docfx-yml
 
 # create metadata
@@ -52,4 +55,4 @@ python3 -m docuploader create-metadata \
 python3 -m docuploader upload . \
  --credentials ${CREDENTIALS} \
  --staging-bucket ${STAGING_BUCKET_V2} \
- --destination-prefix docfx-
+ --destination-prefix docfx
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 30948343..b43d5660 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [0.3.0](https://www.github.com/googleapis/java-workflows/compare/v0.2.1...v0.3.0) (2021-03-11)
+
+
+### Features
+
+* **generator:** update protoc to v3.15.3 ([#203](https://www.github.com/googleapis/java-workflows/issues/203)) ([607f990](https://www.github.com/googleapis/java-workflows/commit/607f9904330c68f624c37d040e2ffc5ab735ef50))
+
+
+### Dependencies
+
+* update dependency com.google.cloud:google-cloud-shared-dependencies to v0.20.1 ([#211](https://www.github.com/googleapis/java-workflows/issues/211)) ([47a3bf4](https://www.github.com/googleapis/java-workflows/commit/47a3bf4d8f12110af1fe4571e661dc08656644cb))
+
 ### [0.2.1](https://www.github.com/googleapis/java-workflows/compare/v0.2.0...v0.2.1) (2021-02-25)
 
 
diff --git a/README.md b/README.md
index e0738ad5..ec13dbe5 100644
--- a/README.md
+++ b/README.md
@@ -20,19 +20,19 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-workflows</artifactId>
-  <version>0.2.0</version>
+  <version>0.2.1</version>
 </dependency>
 
 ```
 
 If you are using Gradle without BOM, add this to your dependencies
 ```Groovy
-compile 'com.google.cloud:google-cloud-workflows:0.2.0'
+compile 'com.google.cloud:google-cloud-workflows:0.2.1'
 ```
 
 If you are using SBT, add this to your dependencies
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-workflows" % "0.2.0"
+libraryDependencies += "com.google.cloud" % "google-cloud-workflows" % "0.2.1"
 ```
 
 ## Authentication
diff --git a/google-cloud-workflows-bom/pom.xml b/google-cloud-workflows-bom/pom.xml
index 58773d0a..11d1d1a7 100644
--- a/google-cloud-workflows-bom/pom.xml
+++ b/google-cloud-workflows-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-workflows-bom</artifactId>
-  <version>0.2.1</version><!-- {x-version-update:google-cloud-workflows:current} -->
+  <version>0.3.0</version><!-- {x-version-update:google-cloud-workflows:current} -->
   <packaging>pom</packaging>
   <parent>
     <groupId>com.google.cloud</groupId>
@@ -68,17 +68,17 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-workflows</artifactId>
-        <version>0.2.1</version><!-- {x-version-update:google-cloud-workflows:current} -->
+        <version>0.3.0</version><!-- {x-version-update:google-cloud-workflows:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-workflows-v1beta</artifactId>
-        <version>0.2.1</version><!-- {x-version-update:proto-google-cloud-workflows-v1beta:current} -->
+        <version>0.3.0</version><!-- {x-version-update:proto-google-cloud-workflows-v1beta:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-workflows-v1beta</artifactId>
-        <version>0.2.1</version><!-- {x-version-update:grpc-google-cloud-workflows-v1beta:current} -->
+        <version>0.3.0</version><!-- {x-version-update:grpc-google-cloud-workflows-v1beta:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-cloud-workflows/pom.xml b/google-cloud-workflows/pom.xml
index cfd164bc..5c177a5f 100644
--- a/google-cloud-workflows/pom.xml
+++ b/google-cloud-workflows/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-workflows</artifactId>
-  <version>0.2.1</version><!-- {x-version-update:google-cloud-workflows:current} -->
+  <version>0.3.0</version><!-- {x-version-update:google-cloud-workflows:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud Workflows</name>
   <url>https://github.com/googleapis/java-workflows</url>
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-workflows-parent</artifactId>
-    <version>0.2.1</version><!-- {x-version-update:google-cloud-workflows:current} -->
+    <version>0.3.0</version><!-- {x-version-update:google-cloud-workflows:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-workflows</site.installationModule>
diff --git a/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/WorkflowsClient.java b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/WorkflowsClient.java
index b72b74b7..5e73912e 100644
--- a/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/WorkflowsClient.java
+++ b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/WorkflowsClient.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2021 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/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/WorkflowsSettings.java b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/WorkflowsSettings.java
index 9cb128c0..f4b870f7 100644
--- a/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/WorkflowsSettings.java
+++ b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/WorkflowsSettings.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2021 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/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/package-info.java b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/package-info.java
index f4483118..b8b30f39 100644
--- a/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/package-info.java
+++ b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/package-info.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2021 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/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/GrpcWorkflowsCallableFactory.java b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/GrpcWorkflowsCallableFactory.java
index 3cefee50..65a47915 100644
--- a/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/GrpcWorkflowsCallableFactory.java
+++ b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/GrpcWorkflowsCallableFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2021 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/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/GrpcWorkflowsStub.java b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/GrpcWorkflowsStub.java
index 9b2d24ba..25d7b12d 100644
--- a/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/GrpcWorkflowsStub.java
+++ b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/GrpcWorkflowsStub.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2021 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/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/WorkflowsStub.java b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/WorkflowsStub.java
index 232dab40..1dfaa2f5 100644
--- a/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/WorkflowsStub.java
+++ b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/WorkflowsStub.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2021 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/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/WorkflowsStubSettings.java b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/WorkflowsStubSettings.java
index 9a31ccd7..67bf0aa6 100644
--- a/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/WorkflowsStubSettings.java
+++ b/google-cloud-workflows/src/main/java/com/google/cloud/workflows/v1beta/stub/WorkflowsStubSettings.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2021 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/google-cloud-workflows/src/test/java/com/google/cloud/workflows/v1beta/MockWorkflows.java b/google-cloud-workflows/src/test/java/com/google/cloud/workflows/v1beta/MockWorkflows.java
index fbb118b8..15128b2e 100644
--- a/google-cloud-workflows/src/test/java/com/google/cloud/workflows/v1beta/MockWorkflows.java
+++ b/google-cloud-workflows/src/test/java/com/google/cloud/workflows/v1beta/MockWorkflows.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2021 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/google-cloud-workflows/src/test/java/com/google/cloud/workflows/v1beta/MockWorkflowsImpl.java b/google-cloud-workflows/src/test/java/com/google/cloud/workflows/v1beta/MockWorkflowsImpl.java
index 5de99bdc..6a8b27c9 100644
--- a/google-cloud-workflows/src/test/java/com/google/cloud/workflows/v1beta/MockWorkflowsImpl.java
+++ b/google-cloud-workflows/src/test/java/com/google/cloud/workflows/v1beta/MockWorkflowsImpl.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2021 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/google-cloud-workflows/src/test/java/com/google/cloud/workflows/v1beta/WorkflowsClientTest.java b/google-cloud-workflows/src/test/java/com/google/cloud/workflows/v1beta/WorkflowsClientTest.java
index 429611ce..85260a34 100644
--- a/google-cloud-workflows/src/test/java/com/google/cloud/workflows/v1beta/WorkflowsClientTest.java
+++ b/google-cloud-workflows/src/test/java/com/google/cloud/workflows/v1beta/WorkflowsClientTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2021 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/grpc-google-cloud-workflows-v1beta/pom.xml b/grpc-google-cloud-workflows-v1beta/pom.xml
index a1cefc01..25094f96 100644
--- a/grpc-google-cloud-workflows-v1beta/pom.xml
+++ b/grpc-google-cloud-workflows-v1beta/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-workflows-v1beta</artifactId>
-  <version>0.2.1</version><!-- {x-version-update:grpc-google-cloud-workflows-v1beta:current} -->
+  <version>0.3.0</version><!-- {x-version-update:grpc-google-cloud-workflows-v1beta:current} -->
   <name>grpc-google-cloud-workflows-v1beta</name>
   <description>GRPC library for google-cloud-workflows</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-workflows-parent</artifactId>
-    <version>0.2.1</version><!-- {x-version-update:google-cloud-workflows:current} -->
+    <version>0.3.0</version><!-- {x-version-update:google-cloud-workflows:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/grpc-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/WorkflowsGrpc.java b/grpc-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/WorkflowsGrpc.java
index 034db5f3..ce09db2d 100644
--- a/grpc-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/WorkflowsGrpc.java
+++ b/grpc-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/WorkflowsGrpc.java
@@ -16,11 +16,6 @@
 package com.google.cloud.workflows.v1beta;
 
 import static io.grpc.MethodDescriptor.generateFullMethodName;
-import static io.grpc.stub.ClientCalls.asyncUnaryCall;
-import static io.grpc.stub.ClientCalls.blockingUnaryCall;
-import static io.grpc.stub.ClientCalls.futureUnaryCall;
-import static io.grpc.stub.ServerCalls.asyncUnaryCall;
-import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
 
 /**
  *
@@ -324,7 +319,8 @@ public void listWorkflows(
         com.google.cloud.workflows.v1beta.ListWorkflowsRequest request,
         io.grpc.stub.StreamObserver<com.google.cloud.workflows.v1beta.ListWorkflowsResponse>
             responseObserver) {
-      asyncUnimplementedUnaryCall(getListWorkflowsMethod(), responseObserver);
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getListWorkflowsMethod(), responseObserver);
     }
 
     /**
@@ -337,7 +333,8 @@ public void listWorkflows(
     public void getWorkflow(
         com.google.cloud.workflows.v1beta.GetWorkflowRequest request,
         io.grpc.stub.StreamObserver<com.google.cloud.workflows.v1beta.Workflow> responseObserver) {
-      asyncUnimplementedUnaryCall(getGetWorkflowMethod(), responseObserver);
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getGetWorkflowMethod(), responseObserver);
     }
 
     /**
@@ -352,7 +349,8 @@ public void getWorkflow(
     public void createWorkflow(
         com.google.cloud.workflows.v1beta.CreateWorkflowRequest request,
         io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
-      asyncUnimplementedUnaryCall(getCreateWorkflowMethod(), responseObserver);
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getCreateWorkflowMethod(), responseObserver);
     }
 
     /**
@@ -367,7 +365,8 @@ public void createWorkflow(
     public void deleteWorkflow(
         com.google.cloud.workflows.v1beta.DeleteWorkflowRequest request,
         io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
-      asyncUnimplementedUnaryCall(getDeleteWorkflowMethod(), responseObserver);
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getDeleteWorkflowMethod(), responseObserver);
     }
 
     /**
@@ -384,7 +383,8 @@ public void deleteWorkflow(
     public void updateWorkflow(
         com.google.cloud.workflows.v1beta.UpdateWorkflowRequest request,
         io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
-      asyncUnimplementedUnaryCall(getUpdateWorkflowMethod(), responseObserver);
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getUpdateWorkflowMethod(), responseObserver);
     }
 
     @java.lang.Override
@@ -392,32 +392,32 @@ public final io.grpc.ServerServiceDefinition bindService() {
       return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
           .addMethod(
               getListWorkflowsMethod(),
-              asyncUnaryCall(
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
                   new MethodHandlers<
                       com.google.cloud.workflows.v1beta.ListWorkflowsRequest,
                       com.google.cloud.workflows.v1beta.ListWorkflowsResponse>(
                       this, METHODID_LIST_WORKFLOWS)))
           .addMethod(
               getGetWorkflowMethod(),
-              asyncUnaryCall(
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
                   new MethodHandlers<
                       com.google.cloud.workflows.v1beta.GetWorkflowRequest,
                       com.google.cloud.workflows.v1beta.Workflow>(this, METHODID_GET_WORKFLOW)))
           .addMethod(
               getCreateWorkflowMethod(),
-              asyncUnaryCall(
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
                   new MethodHandlers<
                       com.google.cloud.workflows.v1beta.CreateWorkflowRequest,
                       com.google.longrunning.Operation>(this, METHODID_CREATE_WORKFLOW)))
           .addMethod(
               getDeleteWorkflowMethod(),
-              asyncUnaryCall(
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
                   new MethodHandlers<
                       com.google.cloud.workflows.v1beta.DeleteWorkflowRequest,
                       com.google.longrunning.Operation>(this, METHODID_DELETE_WORKFLOW)))
           .addMethod(
               getUpdateWorkflowMethod(),
-              asyncUnaryCall(
+              io.grpc.stub.ServerCalls.asyncUnaryCall(
                   new MethodHandlers<
                       com.google.cloud.workflows.v1beta.UpdateWorkflowRequest,
                       com.google.longrunning.Operation>(this, METHODID_UPDATE_WORKFLOW)))
@@ -456,7 +456,7 @@ public void listWorkflows(
         com.google.cloud.workflows.v1beta.ListWorkflowsRequest request,
         io.grpc.stub.StreamObserver<com.google.cloud.workflows.v1beta.ListWorkflowsResponse>
             responseObserver) {
-      asyncUnaryCall(
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
           getChannel().newCall(getListWorkflowsMethod(), getCallOptions()),
           request,
           responseObserver);
@@ -472,7 +472,7 @@ public void listWorkflows(
     public void getWorkflow(
         com.google.cloud.workflows.v1beta.GetWorkflowRequest request,
         io.grpc.stub.StreamObserver<com.google.cloud.workflows.v1beta.Workflow> responseObserver) {
-      asyncUnaryCall(
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
           getChannel().newCall(getGetWorkflowMethod(), getCallOptions()),
           request,
           responseObserver);
@@ -490,7 +490,7 @@ public void getWorkflow(
     public void createWorkflow(
         com.google.cloud.workflows.v1beta.CreateWorkflowRequest request,
         io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
-      asyncUnaryCall(
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
           getChannel().newCall(getCreateWorkflowMethod(), getCallOptions()),
           request,
           responseObserver);
@@ -508,7 +508,7 @@ public void createWorkflow(
     public void deleteWorkflow(
         com.google.cloud.workflows.v1beta.DeleteWorkflowRequest request,
         io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
-      asyncUnaryCall(
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
           getChannel().newCall(getDeleteWorkflowMethod(), getCallOptions()),
           request,
           responseObserver);
@@ -528,7 +528,7 @@ public void deleteWorkflow(
     public void updateWorkflow(
         com.google.cloud.workflows.v1beta.UpdateWorkflowRequest request,
         io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
-      asyncUnaryCall(
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
           getChannel().newCall(getUpdateWorkflowMethod(), getCallOptions()),
           request,
           responseObserver);
@@ -566,7 +566,8 @@ protected WorkflowsBlockingStub build(
      */
     public com.google.cloud.workflows.v1beta.ListWorkflowsResponse listWorkflows(
         com.google.cloud.workflows.v1beta.ListWorkflowsRequest request) {
-      return blockingUnaryCall(getChannel(), getListWorkflowsMethod(), getCallOptions(), request);
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getListWorkflowsMethod(), getCallOptions(), request);
     }
 
     /**
@@ -578,7 +579,8 @@ public com.google.cloud.workflows.v1beta.ListWorkflowsResponse listWorkflows(
      */
     public com.google.cloud.workflows.v1beta.Workflow getWorkflow(
         com.google.cloud.workflows.v1beta.GetWorkflowRequest request) {
-      return blockingUnaryCall(getChannel(), getGetWorkflowMethod(), getCallOptions(), request);
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGetWorkflowMethod(), getCallOptions(), request);
     }
 
     /**
@@ -592,7 +594,8 @@ public com.google.cloud.workflows.v1beta.Workflow getWorkflow(
      */
     public com.google.longrunning.Operation createWorkflow(
         com.google.cloud.workflows.v1beta.CreateWorkflowRequest request) {
-      return blockingUnaryCall(getChannel(), getCreateWorkflowMethod(), getCallOptions(), request);
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getCreateWorkflowMethod(), getCallOptions(), request);
     }
 
     /**
@@ -606,7 +609,8 @@ public com.google.longrunning.Operation createWorkflow(
      */
     public com.google.longrunning.Operation deleteWorkflow(
         com.google.cloud.workflows.v1beta.DeleteWorkflowRequest request) {
-      return blockingUnaryCall(getChannel(), getDeleteWorkflowMethod(), getCallOptions(), request);
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getDeleteWorkflowMethod(), getCallOptions(), request);
     }
 
     /**
@@ -622,7 +626,8 @@ public com.google.longrunning.Operation deleteWorkflow(
      */
     public com.google.longrunning.Operation updateWorkflow(
         com.google.cloud.workflows.v1beta.UpdateWorkflowRequest request) {
-      return blockingUnaryCall(getChannel(), getUpdateWorkflowMethod(), getCallOptions(), request);
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getUpdateWorkflowMethod(), getCallOptions(), request);
     }
   }
 
@@ -657,7 +662,7 @@ protected WorkflowsFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions
     public com.google.common.util.concurrent.ListenableFuture<
             com.google.cloud.workflows.v1beta.ListWorkflowsResponse>
         listWorkflows(com.google.cloud.workflows.v1beta.ListWorkflowsRequest request) {
-      return futureUnaryCall(
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
           getChannel().newCall(getListWorkflowsMethod(), getCallOptions()), request);
     }
 
@@ -671,7 +676,7 @@ protected WorkflowsFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions
     public com.google.common.util.concurrent.ListenableFuture<
             com.google.cloud.workflows.v1beta.Workflow>
         getWorkflow(com.google.cloud.workflows.v1beta.GetWorkflowRequest request) {
-      return futureUnaryCall(
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
           getChannel().newCall(getGetWorkflowMethod(), getCallOptions()), request);
     }
 
@@ -686,7 +691,7 @@ protected WorkflowsFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions
      */
     public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation>
         createWorkflow(com.google.cloud.workflows.v1beta.CreateWorkflowRequest request) {
-      return futureUnaryCall(
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
           getChannel().newCall(getCreateWorkflowMethod(), getCallOptions()), request);
     }
 
@@ -701,7 +706,7 @@ protected WorkflowsFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions
      */
     public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation>
         deleteWorkflow(com.google.cloud.workflows.v1beta.DeleteWorkflowRequest request) {
-      return futureUnaryCall(
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
           getChannel().newCall(getDeleteWorkflowMethod(), getCallOptions()), request);
     }
 
@@ -718,7 +723,7 @@ protected WorkflowsFutureStub build(io.grpc.Channel channel, io.grpc.CallOptions
      */
     public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation>
         updateWorkflow(com.google.cloud.workflows.v1beta.UpdateWorkflowRequest request) {
-      return futureUnaryCall(
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
           getChannel().newCall(getUpdateWorkflowMethod(), getCallOptions()), request);
     }
   }
diff --git a/pom.xml b/pom.xml
index 10095027..68757d94 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-workflows-parent</artifactId>
   <packaging>pom</packaging>
-  <version>0.2.1</version><!-- {x-version-update:google-cloud-workflows:current} -->
+  <version>0.3.0</version><!-- {x-version-update:google-cloud-workflows:current} -->
   <name>Google Cloud Workflows Parent</name>
   <url>https://github.com/googleapis/java-</url>
   <description>
@@ -70,23 +70,23 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-workflows</artifactId>
-        <version>0.2.1</version><!-- {x-version-update:google-cloud-workflows:current} -->
+        <version>0.3.0</version><!-- {x-version-update:google-cloud-workflows:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-workflows-v1beta</artifactId>
-        <version>0.2.1</version><!-- {x-version-update:proto-google-cloud-workflows-v1beta:current} -->
+        <version>0.3.0</version><!-- {x-version-update:proto-google-cloud-workflows-v1beta:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-workflows-v1beta</artifactId>
-        <version>0.2.1</version><!-- {x-version-update:grpc-google-cloud-workflows-v1beta:current} -->
+        <version>0.3.0</version><!-- {x-version-update:grpc-google-cloud-workflows-v1beta:current} -->
       </dependency>
 
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-shared-dependencies</artifactId>
-        <version>0.20.0</version>
+        <version>0.20.1</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
diff --git a/proto-google-cloud-workflows-v1beta/clirr-ignored-differences.xml b/proto-google-cloud-workflows-v1beta/clirr-ignored-differences.xml
new file mode 100644
index 00000000..226e5eca
--- /dev/null
+++ b/proto-google-cloud-workflows-v1beta/clirr-ignored-differences.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- see http://www.mojohaus.org/clirr-maven-plugin/examples/ignored-differences.html -->
+<differences>
+  <difference>
+    <differenceType>7012</differenceType>
+    <className>com/google/cloud/workflows/v1beta/*OrBuilder</className>
+    <method>* has*(*)</method>
+  </difference>
+</differences>
\ No newline at end of file
diff --git a/proto-google-cloud-workflows-v1beta/pom.xml b/proto-google-cloud-workflows-v1beta/pom.xml
index c9fc0c15..2bb7e487 100644
--- a/proto-google-cloud-workflows-v1beta/pom.xml
+++ b/proto-google-cloud-workflows-v1beta/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-workflows-v1beta</artifactId>
-  <version>0.2.1</version><!-- {x-version-update:proto-google-cloud-workflows-v1beta:current} -->
+  <version>0.3.0</version><!-- {x-version-update:proto-google-cloud-workflows-v1beta:current} -->
   <name>proto-google-cloud-workflows-v1beta</name>
   <description>Proto library for google-cloud-workflows</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-workflows-parent</artifactId>
-    <version>0.2.1</version><!-- {x-version-update:google-cloud-workflows:current} -->
+    <version>0.3.0</version><!-- {x-version-update:google-cloud-workflows:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/LocationName.java b/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/LocationName.java
index aa792b8f..6e4f7b61 100644
--- a/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/LocationName.java
+++ b/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/LocationName.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2021 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/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/Workflow.java b/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/Workflow.java
index a0473af9..329cc7c3 100644
--- a/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/Workflow.java
+++ b/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/Workflow.java
@@ -942,6 +942,20 @@ public com.google.protobuf.ByteString getServiceAccountBytes() {
   }
 
   public static final int SOURCE_CONTENTS_FIELD_NUMBER = 10;
+  /**
+   *
+   *
+   * <pre>
+   * Workflow code to be executed. The size limit is 32KB.
+   * </pre>
+   *
+   * <code>string source_contents = 10;</code>
+   *
+   * @return Whether the sourceContents field is set.
+   */
+  public boolean hasSourceContents() {
+    return sourceCodeCase_ == 10;
+  }
   /**
    *
    *
@@ -2975,6 +2989,21 @@ public Builder setServiceAccountBytes(com.google.protobuf.ByteString value) {
       return this;
     }
 
+    /**
+     *
+     *
+     * <pre>
+     * Workflow code to be executed. The size limit is 32KB.
+     * </pre>
+     *
+     * <code>string source_contents = 10;</code>
+     *
+     * @return Whether the sourceContents field is set.
+     */
+    @java.lang.Override
+    public boolean hasSourceContents() {
+      return sourceCodeCase_ == 10;
+    }
     /**
      *
      *
diff --git a/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/WorkflowName.java b/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/WorkflowName.java
index be7e2369..dcdd6fba 100644
--- a/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/WorkflowName.java
+++ b/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/WorkflowName.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2021 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/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/WorkflowOrBuilder.java b/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/WorkflowOrBuilder.java
index de3e0830..a176ea55 100644
--- a/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/WorkflowOrBuilder.java
+++ b/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/WorkflowOrBuilder.java
@@ -382,6 +382,18 @@ public interface WorkflowOrBuilder
    */
   com.google.protobuf.ByteString getServiceAccountBytes();
 
+  /**
+   *
+   *
+   * <pre>
+   * Workflow code to be executed. The size limit is 32KB.
+   * </pre>
+   *
+   * <code>string source_contents = 10;</code>
+   *
+   * @return Whether the sourceContents field is set.
+   */
+  boolean hasSourceContents();
   /**
    *
    *
diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index da5e0b1c..bc524e2b 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -29,7 +29,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-workflows</artifactId>
-      <version>0.2.0</version>
+      <version>0.2.1</version>
     </dependency>
     <!-- [END workflows_install_without_bom] -->
 
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index 36a124ca..7d7dce72 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-workflows</artifactId>
-      <version>0.2.1</version>
+      <version>0.3.0</version>
     </dependency>
     <!-- {x-version-update-end} -->
 
diff --git a/samples/snippets/pom.xml b/samples/snippets/pom.xml
index d9a0e42a..17883cec 100644
--- a/samples/snippets/pom.xml
+++ b/samples/snippets/pom.xml
@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-workflows</artifactId>
-      <version>0.2.0</version>
+      <version>0.2.1</version>
     </dependency>
 
     <dependency>
diff --git a/synth.metadata b/synth.metadata
index 61a077a5..1ec6161a 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,22 +4,22 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-workflows.git",
-        "sha": "098dbaaec94fe7fd9f0ea8c4a46c953a4dff2d70"
+        "sha": "47a3bf4d8f12110af1fe4571e661dc08656644cb"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "af8f71dae961ee036a0ac52a1965270149a6b2c9",
-        "internalRef": "358516065"
+        "sha": "0e915217fb5261c1e57bfaf0e16ee5c7feaaba89",
+        "internalRef": "361377784"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "6946fd71ae9215b0e7ae188f5057df765ee6d7d2"
+        "sha": "0b064d767537e0675fc053e53fca473c5c701fb8"
       }
     }
   ],
diff --git a/versions.txt b/versions.txt
index 2170fcff..40e7b124 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,6 +1,6 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-workflows:0.2.1:0.2.1
-proto-google-cloud-workflows-v1beta:0.2.1:0.2.1
-grpc-google-cloud-workflows-v1beta:0.2.1:0.2.1
\ No newline at end of file
+google-cloud-workflows:0.3.0:0.3.0
+proto-google-cloud-workflows-v1beta:0.3.0:0.3.0
+grpc-google-cloud-workflows-v1beta:0.3.0:0.3.0
\ No newline at end of file