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/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/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/synth.metadata b/synth.metadata
index 61a077a5..fa713e8a 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,15 +4,15 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-workflows.git",
-        "sha": "098dbaaec94fe7fd9f0ea8c4a46c953a4dff2d70"
+        "sha": "9d2195e7f22c399ca674f3d3080f9ee73374ca68"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "af8f71dae961ee036a0ac52a1965270149a6b2c9",
-        "internalRef": "358516065"
+        "sha": "f6dd7e47620566925a4b3f1ce029e74e1b2f2516",
+        "internalRef": "359781040"
       }
     },
     {