diff --git a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsClientTest.java b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsClientTest.java
index da49b2e57..9e9b209f7 100644
--- a/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsClientTest.java
+++ b/google-cloud-dialogflow-cx/src/test/java/com/google/cloud/dialogflow/cx/v3beta1/FlowsClientTest.java
@@ -95,6 +95,7 @@ public void createFlowTest() throws Exception {
             .setDescription("description-1724546052")
             .addAllTransitionRoutes(new ArrayList<TransitionRoute>())
             .addAllEventHandlers(new ArrayList<EventHandler>())
+            .addAllTransitionRouteGroups(new ArrayList<String>())
             .setNluSettings(NluSettings.newBuilder().build())
             .build();
     mockFlows.addResponse(expectedResponse);
@@ -141,6 +142,7 @@ public void createFlowTest2() throws Exception {
             .setDescription("description-1724546052")
             .addAllTransitionRoutes(new ArrayList<TransitionRoute>())
             .addAllEventHandlers(new ArrayList<EventHandler>())
+            .addAllTransitionRouteGroups(new ArrayList<String>())
             .setNluSettings(NluSettings.newBuilder().build())
             .build();
     mockFlows.addResponse(expectedResponse);
@@ -343,6 +345,7 @@ public void getFlowTest() throws Exception {
             .setDescription("description-1724546052")
             .addAllTransitionRoutes(new ArrayList<TransitionRoute>())
             .addAllEventHandlers(new ArrayList<EventHandler>())
+            .addAllTransitionRouteGroups(new ArrayList<String>())
             .setNluSettings(NluSettings.newBuilder().build())
             .build();
     mockFlows.addResponse(expectedResponse);
@@ -386,6 +389,7 @@ public void getFlowTest2() throws Exception {
             .setDescription("description-1724546052")
             .addAllTransitionRoutes(new ArrayList<TransitionRoute>())
             .addAllEventHandlers(new ArrayList<EventHandler>())
+            .addAllTransitionRouteGroups(new ArrayList<String>())
             .setNluSettings(NluSettings.newBuilder().build())
             .build();
     mockFlows.addResponse(expectedResponse);
@@ -429,6 +433,7 @@ public void updateFlowTest() throws Exception {
             .setDescription("description-1724546052")
             .addAllTransitionRoutes(new ArrayList<TransitionRoute>())
             .addAllEventHandlers(new ArrayList<EventHandler>())
+            .addAllTransitionRouteGroups(new ArrayList<String>())
             .setNluSettings(NluSettings.newBuilder().build())
             .build();
     mockFlows.addResponse(expectedResponse);
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Flow.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Flow.java
index e4ddacffb..e03d454b9 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Flow.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Flow.java
@@ -54,6 +54,7 @@ private Flow() {
     description_ = "";
     transitionRoutes_ = java.util.Collections.emptyList();
     eventHandlers_ = java.util.Collections.emptyList();
+    transitionRouteGroups_ = com.google.protobuf.LazyStringArrayList.EMPTY;
   }
 
   @java.lang.Override
@@ -149,6 +150,16 @@ private Flow(
                 nluSettings_ = subBuilder.buildPartial();
               }
 
+              break;
+            }
+          case 122:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
+                transitionRouteGroups_ = new com.google.protobuf.LazyStringArrayList();
+                mutable_bitField0_ |= 0x00000004;
+              }
+              transitionRouteGroups_.add(s);
               break;
             }
           default:
@@ -171,6 +182,9 @@ private Flow(
       if (((mutable_bitField0_ & 0x00000002) != 0)) {
         eventHandlers_ = java.util.Collections.unmodifiableList(eventHandlers_);
       }
+      if (((mutable_bitField0_ & 0x00000004) != 0)) {
+        transitionRouteGroups_ = transitionRouteGroups_.getUnmodifiableView();
+      }
       this.unknownFields = unknownFields.build();
       makeExtensionsImmutable();
     }
@@ -591,6 +605,99 @@ public com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder getEventHand
     return eventHandlers_.get(index);
   }
 
+  public static final int TRANSITION_ROUTE_GROUPS_FIELD_NUMBER = 15;
+  private com.google.protobuf.LazyStringList transitionRouteGroups_;
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition route group serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * route groups][Page.transition_route_groups]. Transition route groups
+   * defined in the page have higher priority than those defined in the flow.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return A list containing the transitionRouteGroups.
+   */
+  public com.google.protobuf.ProtocolStringList getTransitionRouteGroupsList() {
+    return transitionRouteGroups_;
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition route group serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * route groups][Page.transition_route_groups]. Transition route groups
+   * defined in the page have higher priority than those defined in the flow.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The count of transitionRouteGroups.
+   */
+  public int getTransitionRouteGroupsCount() {
+    return transitionRouteGroups_.size();
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition route group serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * route groups][Page.transition_route_groups]. Transition route groups
+   * defined in the page have higher priority than those defined in the flow.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @param index The index of the element to return.
+   * @return The transitionRouteGroups at the given index.
+   */
+  public java.lang.String getTransitionRouteGroups(int index) {
+    return transitionRouteGroups_.get(index);
+  }
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition route group serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * route groups][Page.transition_route_groups]. Transition route groups
+   * defined in the page have higher priority than those defined in the flow.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @param index The index of the value to return.
+   * @return The bytes of the transitionRouteGroups at the given index.
+   */
+  public com.google.protobuf.ByteString getTransitionRouteGroupsBytes(int index) {
+    return transitionRouteGroups_.getByteString(index);
+  }
+
   public static final int NLU_SETTINGS_FIELD_NUMBER = 11;
   private com.google.cloud.dialogflow.cx.v3beta1.NluSettings nluSettings_;
   /**
@@ -671,6 +778,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (nluSettings_ != null) {
       output.writeMessage(11, getNluSettings());
     }
+    for (int i = 0; i < transitionRouteGroups_.size(); i++) {
+      com.google.protobuf.GeneratedMessageV3.writeString(
+          output, 15, transitionRouteGroups_.getRaw(i));
+    }
     unknownFields.writeTo(output);
   }
 
@@ -698,6 +809,14 @@ public int getSerializedSize() {
     if (nluSettings_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(11, getNluSettings());
     }
+    {
+      int dataSize = 0;
+      for (int i = 0; i < transitionRouteGroups_.size(); i++) {
+        dataSize += computeStringSizeNoTag(transitionRouteGroups_.getRaw(i));
+      }
+      size += dataSize;
+      size += 1 * getTransitionRouteGroupsList().size();
+    }
     size += unknownFields.getSerializedSize();
     memoizedSize = size;
     return size;
@@ -719,6 +838,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getDescription().equals(other.getDescription())) return false;
     if (!getTransitionRoutesList().equals(other.getTransitionRoutesList())) return false;
     if (!getEventHandlersList().equals(other.getEventHandlersList())) return false;
+    if (!getTransitionRouteGroupsList().equals(other.getTransitionRouteGroupsList())) return false;
     if (hasNluSettings() != other.hasNluSettings()) return false;
     if (hasNluSettings()) {
       if (!getNluSettings().equals(other.getNluSettings())) return false;
@@ -748,6 +868,10 @@ public int hashCode() {
       hash = (37 * hash) + EVENT_HANDLERS_FIELD_NUMBER;
       hash = (53 * hash) + getEventHandlersList().hashCode();
     }
+    if (getTransitionRouteGroupsCount() > 0) {
+      hash = (37 * hash) + TRANSITION_ROUTE_GROUPS_FIELD_NUMBER;
+      hash = (53 * hash) + getTransitionRouteGroupsList().hashCode();
+    }
     if (hasNluSettings()) {
       hash = (37 * hash) + NLU_SETTINGS_FIELD_NUMBER;
       hash = (53 * hash) + getNluSettings().hashCode();
@@ -929,6 +1053,8 @@ public Builder clear() {
       } else {
         eventHandlersBuilder_.clear();
       }
+      transitionRouteGroups_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000004);
       if (nluSettingsBuilder_ == null) {
         nluSettings_ = null;
       } else {
@@ -984,6 +1110,11 @@ public com.google.cloud.dialogflow.cx.v3beta1.Flow buildPartial() {
       } else {
         result.eventHandlers_ = eventHandlersBuilder_.build();
       }
+      if (((bitField0_ & 0x00000004) != 0)) {
+        transitionRouteGroups_ = transitionRouteGroups_.getUnmodifiableView();
+        bitField0_ = (bitField0_ & ~0x00000004);
+      }
+      result.transitionRouteGroups_ = transitionRouteGroups_;
       if (nluSettingsBuilder_ == null) {
         result.nluSettings_ = nluSettings_;
       } else {
@@ -1104,6 +1235,16 @@ public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.Flow other) {
           }
         }
       }
+      if (!other.transitionRouteGroups_.isEmpty()) {
+        if (transitionRouteGroups_.isEmpty()) {
+          transitionRouteGroups_ = other.transitionRouteGroups_;
+          bitField0_ = (bitField0_ & ~0x00000004);
+        } else {
+          ensureTransitionRouteGroupsIsMutable();
+          transitionRouteGroups_.addAll(other.transitionRouteGroups_);
+        }
+        onChanged();
+      }
       if (other.hasNluSettings()) {
         mergeNluSettings(other.getNluSettings());
       }
@@ -2576,6 +2717,256 @@ public com.google.cloud.dialogflow.cx.v3beta1.EventHandler.Builder addEventHandl
       return eventHandlersBuilder_;
     }
 
+    private com.google.protobuf.LazyStringList transitionRouteGroups_ =
+        com.google.protobuf.LazyStringArrayList.EMPTY;
+
+    private void ensureTransitionRouteGroupsIsMutable() {
+      if (!((bitField0_ & 0x00000004) != 0)) {
+        transitionRouteGroups_ =
+            new com.google.protobuf.LazyStringArrayList(transitionRouteGroups_);
+        bitField0_ |= 0x00000004;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition route group serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * route groups][Page.transition_route_groups]. Transition route groups
+     * defined in the page have higher priority than those defined in the flow.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return A list containing the transitionRouteGroups.
+     */
+    public com.google.protobuf.ProtocolStringList getTransitionRouteGroupsList() {
+      return transitionRouteGroups_.getUnmodifiableView();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition route group serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * route groups][Page.transition_route_groups]. Transition route groups
+     * defined in the page have higher priority than those defined in the flow.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return The count of transitionRouteGroups.
+     */
+    public int getTransitionRouteGroupsCount() {
+      return transitionRouteGroups_.size();
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition route group serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * route groups][Page.transition_route_groups]. Transition route groups
+     * defined in the page have higher priority than those defined in the flow.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param index The index of the element to return.
+     * @return The transitionRouteGroups at the given index.
+     */
+    public java.lang.String getTransitionRouteGroups(int index) {
+      return transitionRouteGroups_.get(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition route group serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * route groups][Page.transition_route_groups]. Transition route groups
+     * defined in the page have higher priority than those defined in the flow.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param index The index of the value to return.
+     * @return The bytes of the transitionRouteGroups at the given index.
+     */
+    public com.google.protobuf.ByteString getTransitionRouteGroupsBytes(int index) {
+      return transitionRouteGroups_.getByteString(index);
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition route group serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * route groups][Page.transition_route_groups]. Transition route groups
+     * defined in the page have higher priority than those defined in the flow.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param index The index to set the value at.
+     * @param value The transitionRouteGroups to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTransitionRouteGroups(int index, java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      ensureTransitionRouteGroupsIsMutable();
+      transitionRouteGroups_.set(index, value);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition route group serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * route groups][Page.transition_route_groups]. Transition route groups
+     * defined in the page have higher priority than those defined in the flow.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The transitionRouteGroups to add.
+     * @return This builder for chaining.
+     */
+    public Builder addTransitionRouteGroups(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      ensureTransitionRouteGroupsIsMutable();
+      transitionRouteGroups_.add(value);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition route group serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * route groups][Page.transition_route_groups]. Transition route groups
+     * defined in the page have higher priority than those defined in the flow.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param values The transitionRouteGroups to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllTransitionRouteGroups(java.lang.Iterable<java.lang.String> values) {
+      ensureTransitionRouteGroupsIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(values, transitionRouteGroups_);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition route group serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * route groups][Page.transition_route_groups]. Transition route groups
+     * defined in the page have higher priority than those defined in the flow.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTransitionRouteGroups() {
+      transitionRouteGroups_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000004);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * A flow's transition route group serve two purposes:
+     * *   They are responsible for matching the user's first utterances in the
+     * flow.
+     * *   They are inherited by every page's [transition
+     * route groups][Page.transition_route_groups]. Transition route groups
+     * defined in the page have higher priority than those defined in the flow.
+     * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+     * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+     * </pre>
+     *
+     * <code>
+     * repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+     * </code>
+     *
+     * @param value The bytes of the transitionRouteGroups to add.
+     * @return This builder for chaining.
+     */
+    public Builder addTransitionRouteGroupsBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      ensureTransitionRouteGroupsIsMutable();
+      transitionRouteGroups_.add(value);
+      onChanged();
+      return this;
+    }
+
     private com.google.cloud.dialogflow.cx.v3beta1.NluSettings nluSettings_;
     private com.google.protobuf.SingleFieldBuilderV3<
             com.google.cloud.dialogflow.cx.v3beta1.NluSettings,
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowOrBuilder.java
index 1d4f81ae0..f070e1b19 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowOrBuilder.java
@@ -314,6 +314,89 @@ com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteOrBuilder getTransitionRou
    */
   com.google.cloud.dialogflow.cx.v3beta1.EventHandlerOrBuilder getEventHandlersOrBuilder(int index);
 
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition route group serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * route groups][Page.transition_route_groups]. Transition route groups
+   * defined in the page have higher priority than those defined in the flow.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return A list containing the transitionRouteGroups.
+   */
+  java.util.List<java.lang.String> getTransitionRouteGroupsList();
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition route group serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * route groups][Page.transition_route_groups]. Transition route groups
+   * defined in the page have higher priority than those defined in the flow.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @return The count of transitionRouteGroups.
+   */
+  int getTransitionRouteGroupsCount();
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition route group serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * route groups][Page.transition_route_groups]. Transition route groups
+   * defined in the page have higher priority than those defined in the flow.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @param index The index of the element to return.
+   * @return The transitionRouteGroups at the given index.
+   */
+  java.lang.String getTransitionRouteGroups(int index);
+  /**
+   *
+   *
+   * <pre>
+   * A flow's transition route group serve two purposes:
+   * *   They are responsible for matching the user's first utterances in the
+   * flow.
+   * *   They are inherited by every page's [transition
+   * route groups][Page.transition_route_groups]. Transition route groups
+   * defined in the page have higher priority than those defined in the flow.
+   * Format:`projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent
+   * ID&gt;/flows/&lt;Flow ID&gt;/transitionRouteGroups/&lt;TransitionRouteGroup ID&gt;`.
+   * </pre>
+   *
+   * <code>repeated string transition_route_groups = 15 [(.google.api.resource_reference) = { ... }
+   * </code>
+   *
+   * @param index The index of the value to return.
+   * @return The bytes of the transitionRouteGroups at the given index.
+   */
+  com.google.protobuf.ByteString getTransitionRouteGroupsBytes(int index);
+
   /**
    *
    *
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowProto.java
index 006520cc3..fe14c7340 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowProto.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/FlowProto.java
@@ -106,99 +106,101 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "odelTrainingMode\022#\n\037MODEL_TRAINING_MODE_"
           + "UNSPECIFIED\020\000\022!\n\035MODEL_TRAINING_MODE_AUT"
           + "OMATIC\020\001\022\036\n\032MODEL_TRAINING_MODE_MANUAL\020\002"
-          + "\"\217\003\n\004Flow\022\014\n\004name\030\001 \001(\t\022\031\n\014display_name\030"
+          + "\"\345\003\n\004Flow\022\014\n\004name\030\001 \001(\t\022\031\n\014display_name\030"
           + "\002 \001(\tB\003\340A\002\022\023\n\013description\030\003 \001(\t\022N\n\021trans"
           + "ition_routes\030\004 \003(\01323.google.cloud.dialog"
           + "flow.cx.v3beta1.TransitionRoute\022H\n\016event"
           + "_handlers\030\n \003(\01320.google.cloud.dialogflo"
-          + "w.cx.v3beta1.EventHandler\022E\n\014nlu_setting"
-          + "s\030\013 \001(\0132/.google.cloud.dialogflow.cx.v3b"
-          + "eta1.NluSettings:h\352Ae\n\036dialogflow.google"
-          + "apis.com/Flow\022Cprojects/{project}/locati"
-          + "ons/{location}/agents/{agent}/flows/{flo"
-          + "w}\"\237\001\n\021CreateFlowRequest\0226\n\006parent\030\001 \001(\t"
-          + "B&\340A\002\372A \022\036dialogflow.googleapis.com/Flow"
-          + "\022;\n\004flow\030\002 \001(\0132(.google.cloud.dialogflow"
-          + ".cx.v3beta1.FlowB\003\340A\002\022\025\n\rlanguage_code\030\003"
-          + " \001(\t\"X\n\021DeleteFlowRequest\0224\n\004name\030\001 \001(\tB"
-          + "&\340A\002\372A \n\036dialogflow.googleapis.com/Flow\022"
-          + "\r\n\005force\030\002 \001(\010\"\210\001\n\020ListFlowsRequest\0226\n\006p"
-          + "arent\030\001 \001(\tB&\340A\002\372A \022\036dialogflow.googleap"
-          + "is.com/Flow\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_t"
-          + "oken\030\003 \001(\t\022\025\n\rlanguage_code\030\004 \001(\t\"e\n\021Lis"
-          + "tFlowsResponse\0227\n\005flows\030\001 \003(\0132(.google.c"
-          + "loud.dialogflow.cx.v3beta1.Flow\022\027\n\017next_"
-          + "page_token\030\002 \001(\t\"]\n\016GetFlowRequest\0224\n\004na"
-          + "me\030\001 \001(\tB&\340A\002\372A \n\036dialogflow.googleapis."
-          + "com/Flow\022\025\n\rlanguage_code\030\002 \001(\t\"\235\001\n\021Upda"
-          + "teFlowRequest\022;\n\004flow\030\001 \001(\0132(.google.clo"
-          + "ud.dialogflow.cx.v3beta1.FlowB\003\340A\002\0224\n\013up"
-          + "date_mask\030\002 \001(\0132\032.google.protobuf.FieldM"
-          + "askB\003\340A\002\022\025\n\rlanguage_code\030\003 \001(\t\"H\n\020Train"
-          + "FlowRequest\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n\036dialo"
-          + "gflow.googleapis.com/Flow\"b\n\023ValidateFlo"
-          + "wRequest\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n\036dialogfl"
-          + "ow.googleapis.com/Flow\022\025\n\rlanguage_code\030"
-          + "\002 \001(\t\"}\n\036GetFlowValidationResultRequest\022"
-          + "D\n\004name\030\001 \001(\tB6\340A\002\372A0\n.dialogflow.google"
-          + "apis.com/FlowValidationResult\022\025\n\rlanguag"
-          + "e_code\030\002 \001(\t\"\266\002\n\024FlowValidationResult\022\014\n"
-          + "\004name\030\001 \001(\t\022R\n\023validation_messages\030\002 \003(\013"
-          + "25.google.cloud.dialogflow.cx.v3beta1.Va"
-          + "lidationMessage\022/\n\013update_time\030\003 \001(\0132\032.g"
-          + "oogle.protobuf.Timestamp:\212\001\352A\206\001\n.dialogf"
-          + "low.googleapis.com/FlowValidationResult\022"
-          + "Tprojects/{project}/locations/{location}"
-          + "/agents/{agent}/flows/{flow}/validationR"
-          + "esult2\335\r\n\005Flows\022\302\001\n\nCreateFlow\0225.google."
-          + "cloud.dialogflow.cx.v3beta1.CreateFlowRe"
+          + "w.cx.v3beta1.EventHandler\022T\n\027transition_"
+          + "route_groups\030\017 \003(\tB3\372A0\n.dialogflow.goog"
+          + "leapis.com/TransitionRouteGroup\022E\n\014nlu_s"
+          + "ettings\030\013 \001(\0132/.google.cloud.dialogflow."
+          + "cx.v3beta1.NluSettings:h\352Ae\n\036dialogflow."
+          + "googleapis.com/Flow\022Cprojects/{project}/"
+          + "locations/{location}/agents/{agent}/flow"
+          + "s/{flow}\"\237\001\n\021CreateFlowRequest\0226\n\006parent"
+          + "\030\001 \001(\tB&\340A\002\372A \022\036dialogflow.googleapis.co"
+          + "m/Flow\022;\n\004flow\030\002 \001(\0132(.google.cloud.dial"
+          + "ogflow.cx.v3beta1.FlowB\003\340A\002\022\025\n\rlanguage_"
+          + "code\030\003 \001(\t\"X\n\021DeleteFlowRequest\0224\n\004name\030"
+          + "\001 \001(\tB&\340A\002\372A \n\036dialogflow.googleapis.com"
+          + "/Flow\022\r\n\005force\030\002 \001(\010\"\210\001\n\020ListFlowsReques"
+          + "t\0226\n\006parent\030\001 \001(\tB&\340A\002\372A \022\036dialogflow.go"
+          + "ogleapis.com/Flow\022\021\n\tpage_size\030\002 \001(\005\022\022\n\n"
+          + "page_token\030\003 \001(\t\022\025\n\rlanguage_code\030\004 \001(\t\""
+          + "e\n\021ListFlowsResponse\0227\n\005flows\030\001 \003(\0132(.go"
+          + "ogle.cloud.dialogflow.cx.v3beta1.Flow\022\027\n"
+          + "\017next_page_token\030\002 \001(\t\"]\n\016GetFlowRequest"
+          + "\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n\036dialogflow.googl"
+          + "eapis.com/Flow\022\025\n\rlanguage_code\030\002 \001(\t\"\235\001"
+          + "\n\021UpdateFlowRequest\022;\n\004flow\030\001 \001(\0132(.goog"
+          + "le.cloud.dialogflow.cx.v3beta1.FlowB\003\340A\002"
+          + "\0224\n\013update_mask\030\002 \001(\0132\032.google.protobuf."
+          + "FieldMaskB\003\340A\002\022\025\n\rlanguage_code\030\003 \001(\t\"H\n"
+          + "\020TrainFlowRequest\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n"
+          + "\036dialogflow.googleapis.com/Flow\"b\n\023Valid"
+          + "ateFlowRequest\0224\n\004name\030\001 \001(\tB&\340A\002\372A \n\036di"
+          + "alogflow.googleapis.com/Flow\022\025\n\rlanguage"
+          + "_code\030\002 \001(\t\"}\n\036GetFlowValidationResultRe"
+          + "quest\022D\n\004name\030\001 \001(\tB6\340A\002\372A0\n.dialogflow."
+          + "googleapis.com/FlowValidationResult\022\025\n\rl"
+          + "anguage_code\030\002 \001(\t\"\266\002\n\024FlowValidationRes"
+          + "ult\022\014\n\004name\030\001 \001(\t\022R\n\023validation_messages"
+          + "\030\002 \003(\01325.google.cloud.dialogflow.cx.v3be"
+          + "ta1.ValidationMessage\022/\n\013update_time\030\003 \001"
+          + "(\0132\032.google.protobuf.Timestamp:\212\001\352A\206\001\n.d"
+          + "ialogflow.googleapis.com/FlowValidationR"
+          + "esult\022Tprojects/{project}/locations/{loc"
+          + "ation}/agents/{agent}/flows/{flow}/valid"
+          + "ationResult2\335\r\n\005Flows\022\302\001\n\nCreateFlow\0225.g"
+          + "oogle.cloud.dialogflow.cx.v3beta1.Create"
+          + "FlowRequest\032(.google.cloud.dialogflow.cx"
+          + ".v3beta1.Flow\"S\202\323\344\223\002?\"7/v3beta1/{parent="
+          + "projects/*/locations/*/agents/*}/flows:\004"
+          + "flow\332A\013parent,flow\022\243\001\n\nDeleteFlow\0225.goog"
+          + "le.cloud.dialogflow.cx.v3beta1.DeleteFlo"
+          + "wRequest\032\026.google.protobuf.Empty\"F\202\323\344\223\0029"
+          + "*7/v3beta1/{name=projects/*/locations/*/"
+          + "agents/*/flows/*}\332A\004name\022\302\001\n\tListFlows\0224"
+          + ".google.cloud.dialogflow.cx.v3beta1.List"
+          + "FlowsRequest\0325.google.cloud.dialogflow.c"
+          + "x.v3beta1.ListFlowsResponse\"H\202\323\344\223\0029\0227/v3"
+          + "beta1/{parent=projects/*/locations/*/age"
+          + "nts/*}/flows\332A\006parent\022\257\001\n\007GetFlow\0222.goog"
+          + "le.cloud.dialogflow.cx.v3beta1.GetFlowRe"
           + "quest\032(.google.cloud.dialogflow.cx.v3bet"
-          + "a1.Flow\"S\202\323\344\223\002?\"7/v3beta1/{parent=projec"
-          + "ts/*/locations/*/agents/*}/flows:\004flow\332A"
-          + "\013parent,flow\022\243\001\n\nDeleteFlow\0225.google.clo"
-          + "ud.dialogflow.cx.v3beta1.DeleteFlowReque"
-          + "st\032\026.google.protobuf.Empty\"F\202\323\344\223\0029*7/v3b"
+          + "a1.Flow\"F\202\323\344\223\0029\0227/v3beta1/{name=projects"
+          + "/*/locations/*/agents/*/flows/*}\332A\004name\022"
+          + "\314\001\n\nUpdateFlow\0225.google.cloud.dialogflow"
+          + ".cx.v3beta1.UpdateFlowRequest\032(.google.c"
+          + "loud.dialogflow.cx.v3beta1.Flow\"]\202\323\344\223\002D2"
+          + "</v3beta1/{flow.name=projects/*/location"
+          + "s/*/agents/*/flows/*}:\004flow\332A\020flow,updat"
+          + "e_mask\022\344\001\n\tTrainFlow\0224.google.cloud.dial"
+          + "ogflow.cx.v3beta1.TrainFlowRequest\032\035.goo"
+          + "gle.longrunning.Operation\"\201\001\202\323\344\223\002B\"=/v3b"
           + "eta1/{name=projects/*/locations/*/agents"
-          + "/*/flows/*}\332A\004name\022\302\001\n\tListFlows\0224.googl"
-          + "e.cloud.dialogflow.cx.v3beta1.ListFlowsR"
-          + "equest\0325.google.cloud.dialogflow.cx.v3be"
-          + "ta1.ListFlowsResponse\"H\202\323\344\223\0029\0227/v3beta1/"
-          + "{parent=projects/*/locations/*/agents/*}"
-          + "/flows\332A\006parent\022\257\001\n\007GetFlow\0222.google.clo"
-          + "ud.dialogflow.cx.v3beta1.GetFlowRequest\032"
-          + "(.google.cloud.dialogflow.cx.v3beta1.Flo"
-          + "w\"F\202\323\344\223\0029\0227/v3beta1/{name=projects/*/loc"
-          + "ations/*/agents/*/flows/*}\332A\004name\022\314\001\n\nUp"
-          + "dateFlow\0225.google.cloud.dialogflow.cx.v3"
-          + "beta1.UpdateFlowRequest\032(.google.cloud.d"
-          + "ialogflow.cx.v3beta1.Flow\"]\202\323\344\223\002D2</v3be"
-          + "ta1/{flow.name=projects/*/locations/*/ag"
-          + "ents/*/flows/*}:\004flow\332A\020flow,update_mask"
-          + "\022\344\001\n\tTrainFlow\0224.google.cloud.dialogflow"
-          + ".cx.v3beta1.TrainFlowRequest\032\035.google.lo"
-          + "ngrunning.Operation\"\201\001\202\323\344\223\002B\"=/v3beta1/{"
-          + "name=projects/*/locations/*/agents/*/flo"
-          + "ws/*}:train:\001*\332A\004name\312A/\n\025google.protobu"
-          + "f.Empty\022\026google.protobuf.Struct\022\316\001\n\014Vali"
-          + "dateFlow\0227.google.cloud.dialogflow.cx.v3"
-          + "beta1.ValidateFlowRequest\0328.google.cloud"
-          + ".dialogflow.cx.v3beta1.FlowValidationRes"
-          + "ult\"K\202\323\344\223\002E\"@/v3beta1/{name=projects/*/l"
-          + "ocations/*/agents/*/flows/*}:validate:\001*"
-          + "\022\360\001\n\027GetFlowValidationResult\022B.google.cl"
-          + "oud.dialogflow.cx.v3beta1.GetFlowValidat"
-          + "ionResultRequest\0328.google.cloud.dialogfl"
-          + "ow.cx.v3beta1.FlowValidationResult\"W\202\323\344\223"
-          + "\002J\022H/v3beta1/{name=projects/*/locations/"
-          + "*/agents/*/flows/*/validationResult}\332A\004n"
-          + "ame\032x\312A\031dialogflow.googleapis.com\322AYhttp"
-          + "s://www.googleapis.com/auth/cloud-platfo"
-          + "rm,https://www.googleapis.com/auth/dialo"
-          + "gflowB\250\001\n&com.google.cloud.dialogflow.cx"
-          + ".v3beta1B\tFlowProtoP\001ZDgoogle.golang.org"
-          + "/genproto/googleapis/cloud/dialogflow/cx"
-          + "/v3beta1;cx\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dialo"
-          + "gflow.Cx.V3Beta1b\006proto3"
+          + "/*/flows/*}:train:\001*\332A\004name\312A/\n\025google.p"
+          + "rotobuf.Empty\022\026google.protobuf.Struct\022\316\001"
+          + "\n\014ValidateFlow\0227.google.cloud.dialogflow"
+          + ".cx.v3beta1.ValidateFlowRequest\0328.google"
+          + ".cloud.dialogflow.cx.v3beta1.FlowValidat"
+          + "ionResult\"K\202\323\344\223\002E\"@/v3beta1/{name=projec"
+          + "ts/*/locations/*/agents/*/flows/*}:valid"
+          + "ate:\001*\022\360\001\n\027GetFlowValidationResult\022B.goo"
+          + "gle.cloud.dialogflow.cx.v3beta1.GetFlowV"
+          + "alidationResultRequest\0328.google.cloud.di"
+          + "alogflow.cx.v3beta1.FlowValidationResult"
+          + "\"W\202\323\344\223\002J\022H/v3beta1/{name=projects/*/loca"
+          + "tions/*/agents/*/flows/*/validationResul"
+          + "t}\332A\004name\032x\312A\031dialogflow.googleapis.com\322"
+          + "AYhttps://www.googleapis.com/auth/cloud-"
+          + "platform,https://www.googleapis.com/auth"
+          + "/dialogflowB\250\001\n&com.google.cloud.dialogf"
+          + "low.cx.v3beta1B\tFlowProtoP\001ZDgoogle.gola"
+          + "ng.org/genproto/googleapis/cloud/dialogf"
+          + "low/cx/v3beta1;cx\370\001\001\242\002\002DF\252\002\"Google.Cloud"
+          + ".Dialogflow.Cx.V3Beta1b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -234,6 +236,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Description",
               "TransitionRoutes",
               "EventHandlers",
+              "TransitionRouteGroups",
               "NluSettings",
             });
     internal_static_google_cloud_dialogflow_cx_v3beta1_CreateFlowRequest_descriptor =
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Intent.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Intent.java
index d4fb14186..a88d54315 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Intent.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Intent.java
@@ -4328,7 +4328,7 @@ public int getLabelsCount() {
    *
    *
    * <pre>
-   * Optional. The key/value metadata to label an intent. Labels can contain
+   * The key/value metadata to label an intent. Labels can contain
    * lowercase letters, digits and the symbols '-' and '_'. International
    * characters are allowed, including letters from unicase alphabets. Keys must
    * start with a letter. Keys and values can be no longer than 63 characters
@@ -4341,7 +4341,7 @@ public int getLabelsCount() {
    * head intent. "sys-contextual" means the intent is a contextual intent.
    * </pre>
    *
-   * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+   * <code>map&lt;string, string&gt; labels = 7;</code>
    */
   @java.lang.Override
   public boolean containsLabels(java.lang.String key) {
@@ -4360,7 +4360,7 @@ public java.util.Map<java.lang.String, java.lang.String> getLabels() {
    *
    *
    * <pre>
-   * Optional. The key/value metadata to label an intent. Labels can contain
+   * The key/value metadata to label an intent. Labels can contain
    * lowercase letters, digits and the symbols '-' and '_'. International
    * characters are allowed, including letters from unicase alphabets. Keys must
    * start with a letter. Keys and values can be no longer than 63 characters
@@ -4373,7 +4373,7 @@ public java.util.Map<java.lang.String, java.lang.String> getLabels() {
    * head intent. "sys-contextual" means the intent is a contextual intent.
    * </pre>
    *
-   * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+   * <code>map&lt;string, string&gt; labels = 7;</code>
    */
   @java.lang.Override
   public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
@@ -4383,7 +4383,7 @@ public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
    *
    *
    * <pre>
-   * Optional. The key/value metadata to label an intent. Labels can contain
+   * The key/value metadata to label an intent. Labels can contain
    * lowercase letters, digits and the symbols '-' and '_'. International
    * characters are allowed, including letters from unicase alphabets. Keys must
    * start with a letter. Keys and values can be no longer than 63 characters
@@ -4396,7 +4396,7 @@ public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
    * head intent. "sys-contextual" means the intent is a contextual intent.
    * </pre>
    *
-   * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+   * <code>map&lt;string, string&gt; labels = 7;</code>
    */
   @java.lang.Override
   public java.lang.String getLabelsOrDefault(java.lang.String key, java.lang.String defaultValue) {
@@ -4410,7 +4410,7 @@ public java.lang.String getLabelsOrDefault(java.lang.String key, java.lang.Strin
    *
    *
    * <pre>
-   * Optional. The key/value metadata to label an intent. Labels can contain
+   * The key/value metadata to label an intent. Labels can contain
    * lowercase letters, digits and the symbols '-' and '_'. International
    * characters are allowed, including letters from unicase alphabets. Keys must
    * start with a letter. Keys and values can be no longer than 63 characters
@@ -4423,7 +4423,7 @@ public java.lang.String getLabelsOrDefault(java.lang.String key, java.lang.Strin
    * head intent. "sys-contextual" means the intent is a contextual intent.
    * </pre>
    *
-   * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+   * <code>map&lt;string, string&gt; labels = 7;</code>
    */
   @java.lang.Override
   public java.lang.String getLabelsOrThrow(java.lang.String key) {
@@ -4443,11 +4443,11 @@ public java.lang.String getLabelsOrThrow(java.lang.String key) {
    *
    *
    * <pre>
-   * Optional. Human readable description for better understanding an intent like its
+   * Human readable description for better understanding an intent like its
    * scope, content, result etc. Maximum character limit: 140 characters.
    * </pre>
    *
-   * <code>string description = 8 [(.google.api.field_behavior) = OPTIONAL];</code>
+   * <code>string description = 8;</code>
    *
    * @return The description.
    */
@@ -4467,11 +4467,11 @@ public java.lang.String getDescription() {
    *
    *
    * <pre>
-   * Optional. Human readable description for better understanding an intent like its
+   * Human readable description for better understanding an intent like its
    * scope, content, result etc. Maximum character limit: 140 characters.
    * </pre>
    *
-   * <code>string description = 8 [(.google.api.field_behavior) = OPTIONAL];</code>
+   * <code>string description = 8;</code>
    *
    * @return The bytes for description.
    */
@@ -6208,7 +6208,7 @@ public int getLabelsCount() {
      *
      *
      * <pre>
-     * Optional. The key/value metadata to label an intent. Labels can contain
+     * The key/value metadata to label an intent. Labels can contain
      * lowercase letters, digits and the symbols '-' and '_'. International
      * characters are allowed, including letters from unicase alphabets. Keys must
      * start with a letter. Keys and values can be no longer than 63 characters
@@ -6221,7 +6221,7 @@ public int getLabelsCount() {
      * head intent. "sys-contextual" means the intent is a contextual intent.
      * </pre>
      *
-     * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * <code>map&lt;string, string&gt; labels = 7;</code>
      */
     @java.lang.Override
     public boolean containsLabels(java.lang.String key) {
@@ -6240,7 +6240,7 @@ public java.util.Map<java.lang.String, java.lang.String> getLabels() {
      *
      *
      * <pre>
-     * Optional. The key/value metadata to label an intent. Labels can contain
+     * The key/value metadata to label an intent. Labels can contain
      * lowercase letters, digits and the symbols '-' and '_'. International
      * characters are allowed, including letters from unicase alphabets. Keys must
      * start with a letter. Keys and values can be no longer than 63 characters
@@ -6253,7 +6253,7 @@ public java.util.Map<java.lang.String, java.lang.String> getLabels() {
      * head intent. "sys-contextual" means the intent is a contextual intent.
      * </pre>
      *
-     * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * <code>map&lt;string, string&gt; labels = 7;</code>
      */
     @java.lang.Override
     public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
@@ -6263,7 +6263,7 @@ public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
      *
      *
      * <pre>
-     * Optional. The key/value metadata to label an intent. Labels can contain
+     * The key/value metadata to label an intent. Labels can contain
      * lowercase letters, digits and the symbols '-' and '_'. International
      * characters are allowed, including letters from unicase alphabets. Keys must
      * start with a letter. Keys and values can be no longer than 63 characters
@@ -6276,7 +6276,7 @@ public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
      * head intent. "sys-contextual" means the intent is a contextual intent.
      * </pre>
      *
-     * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * <code>map&lt;string, string&gt; labels = 7;</code>
      */
     @java.lang.Override
     public java.lang.String getLabelsOrDefault(
@@ -6291,7 +6291,7 @@ public java.lang.String getLabelsOrDefault(
      *
      *
      * <pre>
-     * Optional. The key/value metadata to label an intent. Labels can contain
+     * The key/value metadata to label an intent. Labels can contain
      * lowercase letters, digits and the symbols '-' and '_'. International
      * characters are allowed, including letters from unicase alphabets. Keys must
      * start with a letter. Keys and values can be no longer than 63 characters
@@ -6304,7 +6304,7 @@ public java.lang.String getLabelsOrDefault(
      * head intent. "sys-contextual" means the intent is a contextual intent.
      * </pre>
      *
-     * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * <code>map&lt;string, string&gt; labels = 7;</code>
      */
     @java.lang.Override
     public java.lang.String getLabelsOrThrow(java.lang.String key) {
@@ -6326,7 +6326,7 @@ public Builder clearLabels() {
      *
      *
      * <pre>
-     * Optional. The key/value metadata to label an intent. Labels can contain
+     * The key/value metadata to label an intent. Labels can contain
      * lowercase letters, digits and the symbols '-' and '_'. International
      * characters are allowed, including letters from unicase alphabets. Keys must
      * start with a letter. Keys and values can be no longer than 63 characters
@@ -6339,7 +6339,7 @@ public Builder clearLabels() {
      * head intent. "sys-contextual" means the intent is a contextual intent.
      * </pre>
      *
-     * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * <code>map&lt;string, string&gt; labels = 7;</code>
      */
     public Builder removeLabels(java.lang.String key) {
       if (key == null) {
@@ -6357,7 +6357,7 @@ public java.util.Map<java.lang.String, java.lang.String> getMutableLabels() {
      *
      *
      * <pre>
-     * Optional. The key/value metadata to label an intent. Labels can contain
+     * The key/value metadata to label an intent. Labels can contain
      * lowercase letters, digits and the symbols '-' and '_'. International
      * characters are allowed, including letters from unicase alphabets. Keys must
      * start with a letter. Keys and values can be no longer than 63 characters
@@ -6370,7 +6370,7 @@ public java.util.Map<java.lang.String, java.lang.String> getMutableLabels() {
      * head intent. "sys-contextual" means the intent is a contextual intent.
      * </pre>
      *
-     * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * <code>map&lt;string, string&gt; labels = 7;</code>
      */
     public Builder putLabels(java.lang.String key, java.lang.String value) {
       if (key == null) {
@@ -6386,7 +6386,7 @@ public Builder putLabels(java.lang.String key, java.lang.String value) {
      *
      *
      * <pre>
-     * Optional. The key/value metadata to label an intent. Labels can contain
+     * The key/value metadata to label an intent. Labels can contain
      * lowercase letters, digits and the symbols '-' and '_'. International
      * characters are allowed, including letters from unicase alphabets. Keys must
      * start with a letter. Keys and values can be no longer than 63 characters
@@ -6399,7 +6399,7 @@ public Builder putLabels(java.lang.String key, java.lang.String value) {
      * head intent. "sys-contextual" means the intent is a contextual intent.
      * </pre>
      *
-     * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * <code>map&lt;string, string&gt; labels = 7;</code>
      */
     public Builder putAllLabels(java.util.Map<java.lang.String, java.lang.String> values) {
       internalGetMutableLabels().getMutableMap().putAll(values);
@@ -6411,11 +6411,11 @@ public Builder putAllLabels(java.util.Map<java.lang.String, java.lang.String> va
      *
      *
      * <pre>
-     * Optional. Human readable description for better understanding an intent like its
+     * Human readable description for better understanding an intent like its
      * scope, content, result etc. Maximum character limit: 140 characters.
      * </pre>
      *
-     * <code>string description = 8 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * <code>string description = 8;</code>
      *
      * @return The description.
      */
@@ -6434,11 +6434,11 @@ public java.lang.String getDescription() {
      *
      *
      * <pre>
-     * Optional. Human readable description for better understanding an intent like its
+     * Human readable description for better understanding an intent like its
      * scope, content, result etc. Maximum character limit: 140 characters.
      * </pre>
      *
-     * <code>string description = 8 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * <code>string description = 8;</code>
      *
      * @return The bytes for description.
      */
@@ -6457,11 +6457,11 @@ public com.google.protobuf.ByteString getDescriptionBytes() {
      *
      *
      * <pre>
-     * Optional. Human readable description for better understanding an intent like its
+     * Human readable description for better understanding an intent like its
      * scope, content, result etc. Maximum character limit: 140 characters.
      * </pre>
      *
-     * <code>string description = 8 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * <code>string description = 8;</code>
      *
      * @param value The description to set.
      * @return This builder for chaining.
@@ -6479,11 +6479,11 @@ public Builder setDescription(java.lang.String value) {
      *
      *
      * <pre>
-     * Optional. Human readable description for better understanding an intent like its
+     * Human readable description for better understanding an intent like its
      * scope, content, result etc. Maximum character limit: 140 characters.
      * </pre>
      *
-     * <code>string description = 8 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * <code>string description = 8;</code>
      *
      * @return This builder for chaining.
      */
@@ -6497,11 +6497,11 @@ public Builder clearDescription() {
      *
      *
      * <pre>
-     * Optional. Human readable description for better understanding an intent like its
+     * Human readable description for better understanding an intent like its
      * scope, content, result etc. Maximum character limit: 140 characters.
      * </pre>
      *
-     * <code>string description = 8 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * <code>string description = 8;</code>
      *
      * @param value The bytes for description to set.
      * @return This builder for chaining.
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentOrBuilder.java
index 236dbc600..f0961ec14 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentOrBuilder.java
@@ -239,7 +239,7 @@ com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder getParametersOr
    *
    *
    * <pre>
-   * Optional. The key/value metadata to label an intent. Labels can contain
+   * The key/value metadata to label an intent. Labels can contain
    * lowercase letters, digits and the symbols '-' and '_'. International
    * characters are allowed, including letters from unicase alphabets. Keys must
    * start with a letter. Keys and values can be no longer than 63 characters
@@ -252,14 +252,14 @@ com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder getParametersOr
    * head intent. "sys-contextual" means the intent is a contextual intent.
    * </pre>
    *
-   * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+   * <code>map&lt;string, string&gt; labels = 7;</code>
    */
   int getLabelsCount();
   /**
    *
    *
    * <pre>
-   * Optional. The key/value metadata to label an intent. Labels can contain
+   * The key/value metadata to label an intent. Labels can contain
    * lowercase letters, digits and the symbols '-' and '_'. International
    * characters are allowed, including letters from unicase alphabets. Keys must
    * start with a letter. Keys and values can be no longer than 63 characters
@@ -272,7 +272,7 @@ com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder getParametersOr
    * head intent. "sys-contextual" means the intent is a contextual intent.
    * </pre>
    *
-   * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+   * <code>map&lt;string, string&gt; labels = 7;</code>
    */
   boolean containsLabels(java.lang.String key);
   /** Use {@link #getLabelsMap()} instead. */
@@ -282,7 +282,7 @@ com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder getParametersOr
    *
    *
    * <pre>
-   * Optional. The key/value metadata to label an intent. Labels can contain
+   * The key/value metadata to label an intent. Labels can contain
    * lowercase letters, digits and the symbols '-' and '_'. International
    * characters are allowed, including letters from unicase alphabets. Keys must
    * start with a letter. Keys and values can be no longer than 63 characters
@@ -295,14 +295,14 @@ com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder getParametersOr
    * head intent. "sys-contextual" means the intent is a contextual intent.
    * </pre>
    *
-   * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+   * <code>map&lt;string, string&gt; labels = 7;</code>
    */
   java.util.Map<java.lang.String, java.lang.String> getLabelsMap();
   /**
    *
    *
    * <pre>
-   * Optional. The key/value metadata to label an intent. Labels can contain
+   * The key/value metadata to label an intent. Labels can contain
    * lowercase letters, digits and the symbols '-' and '_'. International
    * characters are allowed, including letters from unicase alphabets. Keys must
    * start with a letter. Keys and values can be no longer than 63 characters
@@ -315,14 +315,14 @@ com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder getParametersOr
    * head intent. "sys-contextual" means the intent is a contextual intent.
    * </pre>
    *
-   * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+   * <code>map&lt;string, string&gt; labels = 7;</code>
    */
   java.lang.String getLabelsOrDefault(java.lang.String key, java.lang.String defaultValue);
   /**
    *
    *
    * <pre>
-   * Optional. The key/value metadata to label an intent. Labels can contain
+   * The key/value metadata to label an intent. Labels can contain
    * lowercase letters, digits and the symbols '-' and '_'. International
    * characters are allowed, including letters from unicase alphabets. Keys must
    * start with a letter. Keys and values can be no longer than 63 characters
@@ -335,7 +335,7 @@ com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder getParametersOr
    * head intent. "sys-contextual" means the intent is a contextual intent.
    * </pre>
    *
-   * <code>map&lt;string, string&gt; labels = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
+   * <code>map&lt;string, string&gt; labels = 7;</code>
    */
   java.lang.String getLabelsOrThrow(java.lang.String key);
 
@@ -343,11 +343,11 @@ com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder getParametersOr
    *
    *
    * <pre>
-   * Optional. Human readable description for better understanding an intent like its
+   * Human readable description for better understanding an intent like its
    * scope, content, result etc. Maximum character limit: 140 characters.
    * </pre>
    *
-   * <code>string description = 8 [(.google.api.field_behavior) = OPTIONAL];</code>
+   * <code>string description = 8;</code>
    *
    * @return The description.
    */
@@ -356,11 +356,11 @@ com.google.cloud.dialogflow.cx.v3beta1.Intent.ParameterOrBuilder getParametersOr
    *
    *
    * <pre>
-   * Optional. Human readable description for better understanding an intent like its
+   * Human readable description for better understanding an intent like its
    * scope, content, result etc. Maximum character limit: 140 characters.
    * </pre>
    *
-   * <code>string description = 8 [(.google.api.field_behavior) = OPTIONAL];</code>
+   * <code>string description = 8;</code>
    *
    * @return The bytes for description.
    */
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentProto.java
index 331340b9c..110c7b5cc 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentProto.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/IntentProto.java
@@ -86,83 +86,83 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "gle/api/client.proto\032\037google/api/field_b"
           + "ehavior.proto\032\031google/api/resource.proto"
           + "\032\033google/protobuf/empty.proto\032 google/pr"
-          + "otobuf/field_mask.proto\"\272\006\n\006Intent\022\014\n\004na"
+          + "otobuf/field_mask.proto\"\260\006\n\006Intent\022\014\n\004na"
           + "me\030\001 \001(\t\022\031\n\014display_name\030\002 \001(\tB\003\340A\002\022S\n\020t"
           + "raining_phrases\030\003 \003(\01329.google.cloud.dia"
           + "logflow.cx.v3beta1.Intent.TrainingPhrase"
           + "\022H\n\nparameters\030\004 \003(\01324.google.cloud.dial"
           + "ogflow.cx.v3beta1.Intent.Parameter\022\020\n\010pr"
-          + "iority\030\005 \001(\005\022\023\n\013is_fallback\030\006 \001(\010\022K\n\006lab"
+          + "iority\030\005 \001(\005\022\023\n\013is_fallback\030\006 \001(\010\022F\n\006lab"
           + "els\030\007 \003(\01326.google.cloud.dialogflow.cx.v"
-          + "3beta1.Intent.LabelsEntryB\003\340A\001\022\030\n\013descri"
-          + "ption\030\010 \001(\tB\003\340A\001\032\267\001\n\016TrainingPhrase\022\n\n\002i"
-          + "d\030\001 \001(\t\022R\n\005parts\030\002 \003(\0132>.google.cloud.di"
-          + "alogflow.cx.v3beta1.Intent.TrainingPhras"
-          + "e.PartB\003\340A\002\022\024\n\014repeat_count\030\003 \001(\005\032/\n\004Par"
-          + "t\022\021\n\004text\030\001 \001(\tB\003\340A\002\022\024\n\014parameter_id\030\002 \001"
-          + "(\t\032\200\001\n\tParameter\022\017\n\002id\030\001 \001(\tB\003\340A\002\022A\n\013ent"
-          + "ity_type\030\002 \001(\tB,\340A\002\372A&\n$dialogflow.googl"
-          + "eapis.com/EntityType\022\017\n\007is_list\030\003 \001(\010\022\016\n"
-          + "\006redact\030\004 \001(\010\032-\n\013LabelsEntry\022\013\n\003key\030\001 \001("
-          + "\t\022\r\n\005value\030\002 \001(\t:\0028\001:n\352Ak\n dialogflow.go"
-          + "ogleapis.com/Intent\022Gprojects/{project}/"
-          + "locations/{location}/agents/{agent}/inte"
-          + "nts/{intent}\"\321\001\n\022ListIntentsRequest\0228\n\006p"
-          + "arent\030\001 \001(\tB(\340A\002\372A\"\022 dialogflow.googleap"
-          + "is.com/Intent\022\025\n\rlanguage_code\030\002 \001(\t\022C\n\013"
-          + "intent_view\030\005 \001(\0162..google.cloud.dialogf"
-          + "low.cx.v3beta1.IntentView\022\021\n\tpage_size\030\003"
-          + " \001(\005\022\022\n\npage_token\030\004 \001(\t\"k\n\023ListIntentsR"
-          + "esponse\022;\n\007intents\030\001 \003(\0132*.google.cloud."
-          + "dialogflow.cx.v3beta1.Intent\022\027\n\017next_pag"
-          + "e_token\030\002 \001(\t\"a\n\020GetIntentRequest\0226\n\004nam"
-          + "e\030\001 \001(\tB(\340A\002\372A\"\n dialogflow.googleapis.c"
-          + "om/Intent\022\025\n\rlanguage_code\030\002 \001(\t\"\247\001\n\023Cre"
-          + "ateIntentRequest\0228\n\006parent\030\001 \001(\tB(\340A\002\372A\""
-          + "\022 dialogflow.googleapis.com/Intent\022?\n\006in"
-          + "tent\030\002 \001(\0132*.google.cloud.dialogflow.cx."
-          + "v3beta1.IntentB\003\340A\002\022\025\n\rlanguage_code\030\003 \001"
-          + "(\t\"\236\001\n\023UpdateIntentRequest\022?\n\006intent\030\001 \001"
-          + "(\0132*.google.cloud.dialogflow.cx.v3beta1."
-          + "IntentB\003\340A\002\022\025\n\rlanguage_code\030\002 \001(\t\022/\n\013up"
-          + "date_mask\030\003 \001(\0132\032.google.protobuf.FieldM"
-          + "ask\"M\n\023DeleteIntentRequest\0226\n\004name\030\001 \001(\t"
-          + "B(\340A\002\372A\"\n dialogflow.googleapis.com/Inte"
-          + "nt*X\n\nIntentView\022\033\n\027INTENT_VIEW_UNSPECIF"
-          + "IED\020\000\022\027\n\023INTENT_VIEW_PARTIAL\020\001\022\024\n\020INTENT"
-          + "_VIEW_FULL\020\0022\344\010\n\007Intents\022\312\001\n\013ListIntents"
-          + "\0226.google.cloud.dialogflow.cx.v3beta1.Li"
-          + "stIntentsRequest\0327.google.cloud.dialogfl"
-          + "ow.cx.v3beta1.ListIntentsResponse\"J\202\323\344\223\002"
-          + ";\0229/v3beta1/{parent=projects/*/locations"
-          + "/*/agents/*}/intents\332A\006parent\022\267\001\n\tGetInt"
-          + "ent\0224.google.cloud.dialogflow.cx.v3beta1"
-          + ".GetIntentRequest\032*.google.cloud.dialogf"
-          + "low.cx.v3beta1.Intent\"H\202\323\344\223\002;\0229/v3beta1/"
-          + "{name=projects/*/locations/*/agents/*/in"
-          + "tents/*}\332A\004name\022\316\001\n\014CreateIntent\0227.googl"
-          + "e.cloud.dialogflow.cx.v3beta1.CreateInte"
-          + "ntRequest\032*.google.cloud.dialogflow.cx.v"
-          + "3beta1.Intent\"Y\202\323\344\223\002C\"9/v3beta1/{parent="
-          + "projects/*/locations/*/agents/*}/intents"
-          + ":\006intent\332A\rparent,intent\022\332\001\n\014UpdateInten"
-          + "t\0227.google.cloud.dialogflow.cx.v3beta1.U"
-          + "pdateIntentRequest\032*.google.cloud.dialog"
-          + "flow.cx.v3beta1.Intent\"e\202\323\344\223\002J2@/v3beta1"
-          + "/{intent.name=projects/*/locations/*/age"
-          + "nts/*/intents/*}:\006intent\332A\022intent,update"
-          + "_mask\022\251\001\n\014DeleteIntent\0227.google.cloud.di"
-          + "alogflow.cx.v3beta1.DeleteIntentRequest\032"
-          + "\026.google.protobuf.Empty\"H\202\323\344\223\002;*9/v3beta"
-          + "1/{name=projects/*/locations/*/agents/*/"
-          + "intents/*}\332A\004name\032x\312A\031dialogflow.googlea"
-          + "pis.com\322AYhttps://www.googleapis.com/aut"
-          + "h/cloud-platform,https://www.googleapis."
-          + "com/auth/dialogflowB\252\001\n&com.google.cloud"
-          + ".dialogflow.cx.v3beta1B\013IntentProtoP\001ZDg"
-          + "oogle.golang.org/genproto/googleapis/clo"
-          + "ud/dialogflow/cx/v3beta1;cx\370\001\001\242\002\002DF\252\002\"Go"
-          + "ogle.Cloud.Dialogflow.Cx.V3Beta1b\006proto3"
+          + "3beta1.Intent.LabelsEntry\022\023\n\013description"
+          + "\030\010 \001(\t\032\267\001\n\016TrainingPhrase\022\n\n\002id\030\001 \001(\t\022R\n"
+          + "\005parts\030\002 \003(\0132>.google.cloud.dialogflow.c"
+          + "x.v3beta1.Intent.TrainingPhrase.PartB\003\340A"
+          + "\002\022\024\n\014repeat_count\030\003 \001(\005\032/\n\004Part\022\021\n\004text\030"
+          + "\001 \001(\tB\003\340A\002\022\024\n\014parameter_id\030\002 \001(\t\032\200\001\n\tPar"
+          + "ameter\022\017\n\002id\030\001 \001(\tB\003\340A\002\022A\n\013entity_type\030\002"
+          + " \001(\tB,\340A\002\372A&\n$dialogflow.googleapis.com/"
+          + "EntityType\022\017\n\007is_list\030\003 \001(\010\022\016\n\006redact\030\004 "
+          + "\001(\010\032-\n\013LabelsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value"
+          + "\030\002 \001(\t:\0028\001:n\352Ak\n dialogflow.googleapis.c"
+          + "om/Intent\022Gprojects/{project}/locations/"
+          + "{location}/agents/{agent}/intents/{inten"
+          + "t}\"\321\001\n\022ListIntentsRequest\0228\n\006parent\030\001 \001("
+          + "\tB(\340A\002\372A\"\022 dialogflow.googleapis.com/Int"
+          + "ent\022\025\n\rlanguage_code\030\002 \001(\t\022C\n\013intent_vie"
+          + "w\030\005 \001(\0162..google.cloud.dialogflow.cx.v3b"
+          + "eta1.IntentView\022\021\n\tpage_size\030\003 \001(\005\022\022\n\npa"
+          + "ge_token\030\004 \001(\t\"k\n\023ListIntentsResponse\022;\n"
+          + "\007intents\030\001 \003(\0132*.google.cloud.dialogflow"
+          + ".cx.v3beta1.Intent\022\027\n\017next_page_token\030\002 "
+          + "\001(\t\"a\n\020GetIntentRequest\0226\n\004name\030\001 \001(\tB(\340"
+          + "A\002\372A\"\n dialogflow.googleapis.com/Intent\022"
+          + "\025\n\rlanguage_code\030\002 \001(\t\"\247\001\n\023CreateIntentR"
+          + "equest\0228\n\006parent\030\001 \001(\tB(\340A\002\372A\"\022 dialogfl"
+          + "ow.googleapis.com/Intent\022?\n\006intent\030\002 \001(\013"
+          + "2*.google.cloud.dialogflow.cx.v3beta1.In"
+          + "tentB\003\340A\002\022\025\n\rlanguage_code\030\003 \001(\t\"\236\001\n\023Upd"
+          + "ateIntentRequest\022?\n\006intent\030\001 \001(\0132*.googl"
+          + "e.cloud.dialogflow.cx.v3beta1.IntentB\003\340A"
+          + "\002\022\025\n\rlanguage_code\030\002 \001(\t\022/\n\013update_mask\030"
+          + "\003 \001(\0132\032.google.protobuf.FieldMask\"M\n\023Del"
+          + "eteIntentRequest\0226\n\004name\030\001 \001(\tB(\340A\002\372A\"\n "
+          + "dialogflow.googleapis.com/Intent*X\n\nInte"
+          + "ntView\022\033\n\027INTENT_VIEW_UNSPECIFIED\020\000\022\027\n\023I"
+          + "NTENT_VIEW_PARTIAL\020\001\022\024\n\020INTENT_VIEW_FULL"
+          + "\020\0022\344\010\n\007Intents\022\312\001\n\013ListIntents\0226.google."
+          + "cloud.dialogflow.cx.v3beta1.ListIntentsR"
+          + "equest\0327.google.cloud.dialogflow.cx.v3be"
+          + "ta1.ListIntentsResponse\"J\202\323\344\223\002;\0229/v3beta"
+          + "1/{parent=projects/*/locations/*/agents/"
+          + "*}/intents\332A\006parent\022\267\001\n\tGetIntent\0224.goog"
+          + "le.cloud.dialogflow.cx.v3beta1.GetIntent"
+          + "Request\032*.google.cloud.dialogflow.cx.v3b"
+          + "eta1.Intent\"H\202\323\344\223\002;\0229/v3beta1/{name=proj"
+          + "ects/*/locations/*/agents/*/intents/*}\332A"
+          + "\004name\022\316\001\n\014CreateIntent\0227.google.cloud.di"
+          + "alogflow.cx.v3beta1.CreateIntentRequest\032"
+          + "*.google.cloud.dialogflow.cx.v3beta1.Int"
+          + "ent\"Y\202\323\344\223\002C\"9/v3beta1/{parent=projects/*"
+          + "/locations/*/agents/*}/intents:\006intent\332A"
+          + "\rparent,intent\022\332\001\n\014UpdateIntent\0227.google"
+          + ".cloud.dialogflow.cx.v3beta1.UpdateInten"
+          + "tRequest\032*.google.cloud.dialogflow.cx.v3"
+          + "beta1.Intent\"e\202\323\344\223\002J2@/v3beta1/{intent.n"
+          + "ame=projects/*/locations/*/agents/*/inte"
+          + "nts/*}:\006intent\332A\022intent,update_mask\022\251\001\n\014"
+          + "DeleteIntent\0227.google.cloud.dialogflow.c"
+          + "x.v3beta1.DeleteIntentRequest\032\026.google.p"
+          + "rotobuf.Empty\"H\202\323\344\223\002;*9/v3beta1/{name=pr"
+          + "ojects/*/locations/*/agents/*/intents/*}"
+          + "\332A\004name\032x\312A\031dialogflow.googleapis.com\322AY"
+          + "https://www.googleapis.com/auth/cloud-pl"
+          + "atform,https://www.googleapis.com/auth/d"
+          + "ialogflowB\252\001\n&com.google.cloud.dialogflo"
+          + "w.cx.v3beta1B\013IntentProtoP\001ZDgoogle.gola"
+          + "ng.org/genproto/googleapis/cloud/dialogf"
+          + "low/cx/v3beta1;cx\370\001\001\242\002\002DF\252\002\"Google.Cloud"
+          + ".Dialogflow.Cx.V3Beta1b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParameters.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParameters.java
index 87509615a..b56525a93 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParameters.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParameters.java
@@ -40,6 +40,7 @@ private QueryParameters(com.google.protobuf.GeneratedMessageV3.Builder<?> builde
   private QueryParameters() {
     timeZone_ = "";
     sessionEntityTypes_ = java.util.Collections.emptyList();
+    currentPage_ = "";
   }
 
   @java.lang.Override
@@ -134,6 +135,13 @@ private QueryParameters(
                 parameters_ = subBuilder.buildPartial();
               }
 
+              break;
+            }
+          case 50:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              currentPage_ = s;
               break;
             }
           case 56:
@@ -542,6 +550,73 @@ public com.google.protobuf.StructOrBuilder getParametersOrBuilder() {
     return getParameters();
   }
 
+  public static final int CURRENT_PAGE_FIELD_NUMBER = 6;
+  private volatile java.lang.Object currentPage_;
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the [page][google.cloud.dialogflow.cx.v3beta1.Page] to override the [current
+   * page][QueryResult.current_page] in the session. Format: `projects/&lt;Project
+   * ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/pages/&lt;page ID&gt;`.
+   * If `current_page` is specified, the previous state of the session will be
+   * ignored by Dialogflow, including the [previous
+   * page][QueryResult.current_page] and the [previous session
+   * parameters][QueryResult.parameters].
+   * In most cases, [current_page][google.cloud.dialogflow.cx.v3beta1.QueryParameters.current_page] and
+   * [parameters][google.cloud.dialogflow.cx.v3beta1.QueryParameters.parameters] should be configured together to
+   * direct a session to a specific state.
+   * </pre>
+   *
+   * <code>string current_page = 6 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The currentPage.
+   */
+  @java.lang.Override
+  public java.lang.String getCurrentPage() {
+    java.lang.Object ref = currentPage_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      currentPage_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the [page][google.cloud.dialogflow.cx.v3beta1.Page] to override the [current
+   * page][QueryResult.current_page] in the session. Format: `projects/&lt;Project
+   * ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/pages/&lt;page ID&gt;`.
+   * If `current_page` is specified, the previous state of the session will be
+   * ignored by Dialogflow, including the [previous
+   * page][QueryResult.current_page] and the [previous session
+   * parameters][QueryResult.parameters].
+   * In most cases, [current_page][google.cloud.dialogflow.cx.v3beta1.QueryParameters.current_page] and
+   * [parameters][google.cloud.dialogflow.cx.v3beta1.QueryParameters.parameters] should be configured together to
+   * direct a session to a specific state.
+   * </pre>
+   *
+   * <code>string current_page = 6 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for currentPage.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getCurrentPageBytes() {
+    java.lang.Object ref = currentPage_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      currentPage_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
   public static final int DISABLE_WEBHOOK_FIELD_NUMBER = 7;
   private boolean disableWebhook_;
   /**
@@ -737,6 +812,9 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (parameters_ != null) {
       output.writeMessage(5, getParameters());
     }
+    if (!getCurrentPageBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 6, currentPage_);
+    }
     if (disableWebhook_ != false) {
       output.writeBool(7, disableWebhook_);
     }
@@ -770,6 +848,9 @@ public int getSerializedSize() {
     if (parameters_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getParameters());
     }
+    if (!getCurrentPageBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, currentPage_);
+    }
     if (disableWebhook_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(7, disableWebhook_);
     }
@@ -816,6 +897,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasParameters()) {
       if (!getParameters().equals(other.getParameters())) return false;
     }
+    if (!getCurrentPage().equals(other.getCurrentPage())) return false;
     if (getDisableWebhook() != other.getDisableWebhook()) return false;
     if (getAnalyzeQueryTextSentiment() != other.getAnalyzeQueryTextSentiment()) return false;
     if (!internalGetWebhookHeaders().equals(other.internalGetWebhookHeaders())) return false;
@@ -848,6 +930,8 @@ public int hashCode() {
       hash = (37 * hash) + PARAMETERS_FIELD_NUMBER;
       hash = (53 * hash) + getParameters().hashCode();
     }
+    hash = (37 * hash) + CURRENT_PAGE_FIELD_NUMBER;
+    hash = (53 * hash) + getCurrentPage().hashCode();
     hash = (37 * hash) + DISABLE_WEBHOOK_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisableWebhook());
     hash = (37 * hash) + ANALYZE_QUERY_TEXT_SENTIMENT_FIELD_NUMBER;
@@ -1050,6 +1134,8 @@ public Builder clear() {
         parameters_ = null;
         parametersBuilder_ = null;
       }
+      currentPage_ = "";
+
       disableWebhook_ = false;
 
       analyzeQueryTextSentiment_ = false;
@@ -1108,6 +1194,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.QueryParameters buildPartial() {
       } else {
         result.parameters_ = parametersBuilder_.build();
       }
+      result.currentPage_ = currentPage_;
       result.disableWebhook_ = disableWebhook_;
       result.analyzeQueryTextSentiment_ = analyzeQueryTextSentiment_;
       result.webhookHeaders_ = internalGetWebhookHeaders();
@@ -1202,6 +1289,10 @@ public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.QueryParameters
       if (other.hasParameters()) {
         mergeParameters(other.getParameters());
       }
+      if (!other.getCurrentPage().isEmpty()) {
+        currentPage_ = other.currentPage_;
+        onChanged();
+      }
       if (other.getDisableWebhook() != false) {
         setDisableWebhook(other.getDisableWebhook());
       }
@@ -2490,6 +2581,157 @@ public com.google.protobuf.StructOrBuilder getParametersOrBuilder() {
       return parametersBuilder_;
     }
 
+    private java.lang.Object currentPage_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the [page][google.cloud.dialogflow.cx.v3beta1.Page] to override the [current
+     * page][QueryResult.current_page] in the session. Format: `projects/&lt;Project
+     * ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/pages/&lt;page ID&gt;`.
+     * If `current_page` is specified, the previous state of the session will be
+     * ignored by Dialogflow, including the [previous
+     * page][QueryResult.current_page] and the [previous session
+     * parameters][QueryResult.parameters].
+     * In most cases, [current_page][google.cloud.dialogflow.cx.v3beta1.QueryParameters.current_page] and
+     * [parameters][google.cloud.dialogflow.cx.v3beta1.QueryParameters.parameters] should be configured together to
+     * direct a session to a specific state.
+     * </pre>
+     *
+     * <code>string current_page = 6 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The currentPage.
+     */
+    public java.lang.String getCurrentPage() {
+      java.lang.Object ref = currentPage_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        currentPage_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the [page][google.cloud.dialogflow.cx.v3beta1.Page] to override the [current
+     * page][QueryResult.current_page] in the session. Format: `projects/&lt;Project
+     * ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/pages/&lt;page ID&gt;`.
+     * If `current_page` is specified, the previous state of the session will be
+     * ignored by Dialogflow, including the [previous
+     * page][QueryResult.current_page] and the [previous session
+     * parameters][QueryResult.parameters].
+     * In most cases, [current_page][google.cloud.dialogflow.cx.v3beta1.QueryParameters.current_page] and
+     * [parameters][google.cloud.dialogflow.cx.v3beta1.QueryParameters.parameters] should be configured together to
+     * direct a session to a specific state.
+     * </pre>
+     *
+     * <code>string current_page = 6 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return The bytes for currentPage.
+     */
+    public com.google.protobuf.ByteString getCurrentPageBytes() {
+      java.lang.Object ref = currentPage_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        currentPage_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the [page][google.cloud.dialogflow.cx.v3beta1.Page] to override the [current
+     * page][QueryResult.current_page] in the session. Format: `projects/&lt;Project
+     * ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/pages/&lt;page ID&gt;`.
+     * If `current_page` is specified, the previous state of the session will be
+     * ignored by Dialogflow, including the [previous
+     * page][QueryResult.current_page] and the [previous session
+     * parameters][QueryResult.parameters].
+     * In most cases, [current_page][google.cloud.dialogflow.cx.v3beta1.QueryParameters.current_page] and
+     * [parameters][google.cloud.dialogflow.cx.v3beta1.QueryParameters.parameters] should be configured together to
+     * direct a session to a specific state.
+     * </pre>
+     *
+     * <code>string current_page = 6 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The currentPage to set.
+     * @return This builder for chaining.
+     */
+    public Builder setCurrentPage(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      currentPage_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the [page][google.cloud.dialogflow.cx.v3beta1.Page] to override the [current
+     * page][QueryResult.current_page] in the session. Format: `projects/&lt;Project
+     * ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/pages/&lt;page ID&gt;`.
+     * If `current_page` is specified, the previous state of the session will be
+     * ignored by Dialogflow, including the [previous
+     * page][QueryResult.current_page] and the [previous session
+     * parameters][QueryResult.parameters].
+     * In most cases, [current_page][google.cloud.dialogflow.cx.v3beta1.QueryParameters.current_page] and
+     * [parameters][google.cloud.dialogflow.cx.v3beta1.QueryParameters.parameters] should be configured together to
+     * direct a session to a specific state.
+     * </pre>
+     *
+     * <code>string current_page = 6 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearCurrentPage() {
+
+      currentPage_ = getDefaultInstance().getCurrentPage();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The unique identifier of the [page][google.cloud.dialogflow.cx.v3beta1.Page] to override the [current
+     * page][QueryResult.current_page] in the session. Format: `projects/&lt;Project
+     * ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/pages/&lt;page ID&gt;`.
+     * If `current_page` is specified, the previous state of the session will be
+     * ignored by Dialogflow, including the [previous
+     * page][QueryResult.current_page] and the [previous session
+     * parameters][QueryResult.parameters].
+     * In most cases, [current_page][google.cloud.dialogflow.cx.v3beta1.QueryParameters.current_page] and
+     * [parameters][google.cloud.dialogflow.cx.v3beta1.QueryParameters.parameters] should be configured together to
+     * direct a session to a specific state.
+     * </pre>
+     *
+     * <code>string current_page = 6 [(.google.api.resource_reference) = { ... }</code>
+     *
+     * @param value The bytes for currentPage to set.
+     * @return This builder for chaining.
+     */
+    public Builder setCurrentPageBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      currentPage_ = value;
+      onChanged();
+      return this;
+    }
+
     private boolean disableWebhook_;
     /**
      *
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParametersOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParametersOrBuilder.java
index d085c9036..c206f1b6b 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParametersOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryParametersOrBuilder.java
@@ -279,6 +279,49 @@ com.google.cloud.dialogflow.cx.v3beta1.SessionEntityTypeOrBuilder getSessionEnti
    */
   com.google.protobuf.StructOrBuilder getParametersOrBuilder();
 
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the [page][google.cloud.dialogflow.cx.v3beta1.Page] to override the [current
+   * page][QueryResult.current_page] in the session. Format: `projects/&lt;Project
+   * ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/pages/&lt;page ID&gt;`.
+   * If `current_page` is specified, the previous state of the session will be
+   * ignored by Dialogflow, including the [previous
+   * page][QueryResult.current_page] and the [previous session
+   * parameters][QueryResult.parameters].
+   * In most cases, [current_page][google.cloud.dialogflow.cx.v3beta1.QueryParameters.current_page] and
+   * [parameters][google.cloud.dialogflow.cx.v3beta1.QueryParameters.parameters] should be configured together to
+   * direct a session to a specific state.
+   * </pre>
+   *
+   * <code>string current_page = 6 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The currentPage.
+   */
+  java.lang.String getCurrentPage();
+  /**
+   *
+   *
+   * <pre>
+   * The unique identifier of the [page][google.cloud.dialogflow.cx.v3beta1.Page] to override the [current
+   * page][QueryResult.current_page] in the session. Format: `projects/&lt;Project
+   * ID&gt;/locations/&lt;Location ID&gt;/agents/&lt;Agent ID&gt;/pages/&lt;page ID&gt;`.
+   * If `current_page` is specified, the previous state of the session will be
+   * ignored by Dialogflow, including the [previous
+   * page][QueryResult.current_page] and the [previous session
+   * parameters][QueryResult.parameters].
+   * In most cases, [current_page][google.cloud.dialogflow.cx.v3beta1.QueryParameters.current_page] and
+   * [parameters][google.cloud.dialogflow.cx.v3beta1.QueryParameters.parameters] should be configured together to
+   * direct a session to a specific state.
+   * </pre>
+   *
+   * <code>string current_page = 6 [(.google.api.resource_reference) = { ... }</code>
+   *
+   * @return The bytes for currentPage.
+   */
+  com.google.protobuf.ByteString getCurrentPageBytes();
+
   /**
    *
    *
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionProto.java
index 8551574d4..55e6d9afd 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionProto.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/SessionProto.java
@@ -169,133 +169,135 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "eechWordInfo\0224\n\021speech_end_offset\030\010 \001(\0132"
           + "\031.google.protobuf.Duration\"X\n\013MessageTyp"
           + "e\022\034\n\030MESSAGE_TYPE_UNSPECIFIED\020\000\022\016\n\nTRANS"
-          + "CRIPT\020\001\022\033\n\027END_OF_SINGLE_UTTERANCE\020\002\"\323\003\n"
+          + "CRIPT\020\001\022\033\n\027END_OF_SINGLE_UTTERANCE\020\002\"\216\004\n"
           + "\017QueryParameters\022\021\n\ttime_zone\030\001 \001(\t\022)\n\014g"
           + "eo_location\030\002 \001(\0132\023.google.type.LatLng\022S"
           + "\n\024session_entity_types\030\003 \003(\01325.google.cl"
           + "oud.dialogflow.cx.v3beta1.SessionEntityT"
           + "ype\022(\n\007payload\030\004 \001(\0132\027.google.protobuf.S"
           + "truct\022+\n\nparameters\030\005 \001(\0132\027.google.proto"
-          + "buf.Struct\022\027\n\017disable_webhook\030\007 \001(\010\022$\n\034a"
-          + "nalyze_query_text_sentiment\030\010 \001(\010\022`\n\017web"
-          + "hook_headers\030\n \003(\0132G.google.cloud.dialog"
-          + "flow.cx.v3beta1.QueryParameters.WebhookH"
-          + "eadersEntry\0325\n\023WebhookHeadersEntry\022\013\n\003ke"
-          + "y\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"\364\002\n\nQueryInpu"
-          + "t\022=\n\004text\030\002 \001(\0132-.google.cloud.dialogflo"
-          + "w.cx.v3beta1.TextInputH\000\022A\n\006intent\030\003 \001(\013"
-          + "2/.google.cloud.dialogflow.cx.v3beta1.In"
-          + "tentInputH\000\022?\n\005audio\030\005 \001(\0132..google.clou"
-          + "d.dialogflow.cx.v3beta1.AudioInputH\000\022?\n\005"
-          + "event\030\006 \001(\0132..google.cloud.dialogflow.cx"
-          + ".v3beta1.EventInputH\000\022=\n\004dtmf\030\007 \001(\0132-.go"
-          + "ogle.cloud.dialogflow.cx.v3beta1.DtmfInp"
-          + "utH\000\022\032\n\rlanguage_code\030\004 \001(\tB\003\340A\002B\007\n\005inpu"
-          + "t\"\200\006\n\013QueryResult\022\016\n\004text\030\001 \001(\tH\000\022?\n\016tri"
-          + "gger_intent\030\013 \001(\tB%\372A\"\n dialogflow.googl"
-          + "eapis.com/IntentH\000\022\024\n\ntranscript\030\014 \001(\tH\000"
-          + "\022\027\n\rtrigger_event\030\016 \001(\tH\000\022\025\n\rlanguage_co"
-          + "de\030\002 \001(\t\022+\n\nparameters\030\003 \001(\0132\027.google.pr"
-          + "otobuf.Struct\022N\n\021response_messages\030\004 \003(\013"
-          + "23.google.cloud.dialogflow.cx.v3beta1.Re"
-          + "sponseMessage\022,\n\020webhook_statuses\030\r \003(\0132"
-          + "\022.google.rpc.Status\0221\n\020webhook_payloads\030"
-          + "\006 \003(\0132\027.google.protobuf.Struct\022>\n\014curren"
-          + "t_page\030\007 \001(\0132(.google.cloud.dialogflow.c"
-          + "x.v3beta1.Page\022>\n\006intent\030\010 \001(\0132*.google."
-          + "cloud.dialogflow.cx.v3beta1.IntentB\002\030\001\022\'"
-          + "\n\033intent_detection_confidence\030\t \001(\002B\002\030\001\022"
-          + "8\n\005match\030\017 \001(\0132).google.cloud.dialogflow"
-          + ".cx.v3beta1.Match\0220\n\017diagnostic_info\030\n \001"
-          + "(\0132\027.google.protobuf.Struct\022^\n\031sentiment"
-          + "_analysis_result\030\021 \001(\0132;.google.cloud.di"
-          + "alogflow.cx.v3beta1.SentimentAnalysisRes"
-          + "ultB\007\n\005query\"\036\n\tTextInput\022\021\n\004text\030\001 \001(\tB"
-          + "\003\340A\002\"G\n\013IntentInput\0228\n\006intent\030\001 \001(\tB(\340A\002"
-          + "\372A\"\n dialogflow.googleapis.com/Intent\"f\n"
-          + "\nAudioInput\022I\n\006config\030\001 \001(\01324.google.clo"
-          + "ud.dialogflow.cx.v3beta1.InputAudioConfi"
-          + "gB\003\340A\002\022\r\n\005audio\030\002 \001(\014\"\033\n\nEventInput\022\r\n\005e"
-          + "vent\030\001 \001(\t\"1\n\tDtmfInput\022\016\n\006digits\030\001 \001(\t\022"
-          + "\024\n\014finish_digit\030\002 \001(\t\"\373\002\n\005Match\022:\n\006inten"
-          + "t\030\001 \001(\0132*.google.cloud.dialogflow.cx.v3b"
-          + "eta1.Intent\022\r\n\005event\030\006 \001(\t\022+\n\nparameters"
-          + "\030\002 \001(\0132\027.google.protobuf.Struct\022\026\n\016resol"
-          + "ved_input\030\003 \001(\t\022G\n\nmatch_type\030\004 \001(\01623.go"
-          + "ogle.cloud.dialogflow.cx.v3beta1.Match.M"
-          + "atchType\022\022\n\nconfidence\030\005 \001(\002\"\204\001\n\tMatchTy"
-          + "pe\022\032\n\026MATCH_TYPE_UNSPECIFIED\020\000\022\n\n\006INTENT"
-          + "\020\001\022\021\n\rDIRECT_INTENT\020\002\022\025\n\021PARAMETER_FILLI"
-          + "NG\020\003\022\014\n\010NO_MATCH\020\004\022\014\n\010NO_INPUT\020\005\022\t\n\005EVEN"
-          + "T\020\006\"\345\001\n\022MatchIntentRequest\022:\n\007session\030\001 "
-          + "\001(\tB)\340A\002\372A#\n!dialogflow.googleapis.com/S"
-          + "ession\022I\n\014query_params\030\002 \001(\01323.google.cl"
-          + "oud.dialogflow.cx.v3beta1.QueryParameter"
-          + "s\022H\n\013query_input\030\003 \001(\0132..google.cloud.di"
-          + "alogflow.cx.v3beta1.QueryInputB\003\340A\002\"\232\002\n\023"
-          + "MatchIntentResponse\022\016\n\004text\030\001 \001(\tH\000\022?\n\016t"
-          + "rigger_intent\030\002 \001(\tB%\372A\"\n dialogflow.goo"
-          + "gleapis.com/IntentH\000\022\024\n\ntranscript\030\003 \001(\t"
-          + "H\000\022\027\n\rtrigger_event\030\006 \001(\tH\000\022:\n\007matches\030\004"
-          + " \003(\0132).google.cloud.dialogflow.cx.v3beta"
-          + "1.Match\022>\n\014current_page\030\005 \001(\0132(.google.c"
-          + "loud.dialogflow.cx.v3beta1.PageB\007\n\005query"
-          + "\"\372\001\n\024FulfillIntentRequest\022T\n\024match_inten"
-          + "t_request\030\001 \001(\01326.google.cloud.dialogflo"
-          + "w.cx.v3beta1.MatchIntentRequest\0228\n\005match"
-          + "\030\002 \001(\0132).google.cloud.dialogflow.cx.v3be"
-          + "ta1.Match\022R\n\023output_audio_config\030\003 \001(\01325"
-          + ".google.cloud.dialogflow.cx.v3beta1.Outp"
-          + "utAudioConfig\"\335\001\n\025FulfillIntentResponse\022"
-          + "\023\n\013response_id\030\001 \001(\t\022E\n\014query_result\030\002 \001"
-          + "(\0132/.google.cloud.dialogflow.cx.v3beta1."
-          + "QueryResult\022\024\n\014output_audio\030\003 \001(\014\022R\n\023out"
-          + "put_audio_config\030\004 \001(\01325.google.cloud.di"
-          + "alogflow.cx.v3beta1.OutputAudioConfig\";\n"
-          + "\027SentimentAnalysisResult\022\r\n\005score\030\001 \001(\002\022"
-          + "\021\n\tmagnitude\030\002 \001(\0022\212\n\n\010Sessions\022\272\002\n\014Dete"
-          + "ctIntent\0227.google.cloud.dialogflow.cx.v3"
-          + "beta1.DetectIntentRequest\0328.google.cloud"
-          + ".dialogflow.cx.v3beta1.DetectIntentRespo"
-          + "nse\"\266\001\202\323\344\223\002\257\001\"J/v3beta1/{session=project"
-          + "s/*/locations/*/agents/*/sessions/*}:det"
-          + "ectIntent:\001*Z^\"Y/v3beta1/{session=projec"
-          + "ts/*/locations/*/agents/*/environments/*"
-          + "/sessions/*}:detectIntent:\001*\022\242\001\n\025Streami"
-          + "ngDetectIntent\022@.google.cloud.dialogflow"
-          + ".cx.v3beta1.StreamingDetectIntentRequest"
-          + "\032A.google.cloud.dialogflow.cx.v3beta1.St"
-          + "reamingDetectIntentResponse\"\000(\0010\001\022\265\002\n\013Ma"
-          + "tchIntent\0226.google.cloud.dialogflow.cx.v"
-          + "3beta1.MatchIntentRequest\0327.google.cloud"
-          + ".dialogflow.cx.v3beta1.MatchIntentRespon"
-          + "se\"\264\001\202\323\344\223\002\255\001\"I/v3beta1/{session=projects"
-          + "/*/locations/*/agents/*/sessions/*}:matc"
-          + "hIntent:\001*Z]\"X/v3beta1/{session=projects"
-          + "/*/locations/*/agents/*/environments/*/s"
-          + "essions/*}:matchIntent:\001*\022\351\002\n\rFulfillInt"
-          + "ent\0228.google.cloud.dialogflow.cx.v3beta1"
-          + ".FulfillIntentRequest\0329.google.cloud.dia"
-          + "logflow.cx.v3beta1.FulfillIntentResponse"
-          + "\"\342\001\202\323\344\223\002\333\001\"`/v3beta1/{match_intent_reque"
-          + "st.session=projects/*/locations/*/agents"
-          + "/*/sessions/*}:fulfillIntent:\001*Zt\"o/v3be"
-          + "ta1/{match_intent_request.session=projec"
-          + "ts/*/locations/*/agents/*/environments/*"
-          + "/sessions/*}:fulfillIntent:\001*\032x\312A\031dialog"
-          + "flow.googleapis.com\322AYhttps://www.google"
-          + "apis.com/auth/cloud-platform,https://www"
-          + ".googleapis.com/auth/dialogflowB\203\003\n&com."
-          + "google.cloud.dialogflow.cx.v3beta1B\014Sess"
-          + "ionProtoP\001ZDgoogle.golang.org/genproto/g"
-          + "oogleapis/cloud/dialogflow/cx/v3beta1;cx"
-          + "\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dialogflow.Cx.V3"
-          + "Beta1\352A\324\001\n!dialogflow.googleapis.com/Ses"
-          + "sion\022Iprojects/{project}/locations/{loca"
-          + "tion}/agents/{agent}/sessions/{session}\022"
-          + "dprojects/{project}/locations/{location}"
-          + "/agents/{agent}/environments/{environmen"
-          + "t}/sessions/{session}b\006proto3"
+          + "buf.Struct\0229\n\014current_page\030\006 \001(\tB#\372A \n\036d"
+          + "ialogflow.googleapis.com/Page\022\027\n\017disable"
+          + "_webhook\030\007 \001(\010\022$\n\034analyze_query_text_sen"
+          + "timent\030\010 \001(\010\022`\n\017webhook_headers\030\n \003(\0132G."
+          + "google.cloud.dialogflow.cx.v3beta1.Query"
+          + "Parameters.WebhookHeadersEntry\0325\n\023Webhoo"
+          + "kHeadersEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001("
+          + "\t:\0028\001\"\364\002\n\nQueryInput\022=\n\004text\030\002 \001(\0132-.goo"
+          + "gle.cloud.dialogflow.cx.v3beta1.TextInpu"
+          + "tH\000\022A\n\006intent\030\003 \001(\0132/.google.cloud.dialo"
+          + "gflow.cx.v3beta1.IntentInputH\000\022?\n\005audio\030"
+          + "\005 \001(\0132..google.cloud.dialogflow.cx.v3bet"
+          + "a1.AudioInputH\000\022?\n\005event\030\006 \001(\0132..google."
+          + "cloud.dialogflow.cx.v3beta1.EventInputH\000"
+          + "\022=\n\004dtmf\030\007 \001(\0132-.google.cloud.dialogflow"
+          + ".cx.v3beta1.DtmfInputH\000\022\032\n\rlanguage_code"
+          + "\030\004 \001(\tB\003\340A\002B\007\n\005input\"\200\006\n\013QueryResult\022\016\n\004"
+          + "text\030\001 \001(\tH\000\022?\n\016trigger_intent\030\013 \001(\tB%\372A"
+          + "\"\n dialogflow.googleapis.com/IntentH\000\022\024\n"
+          + "\ntranscript\030\014 \001(\tH\000\022\027\n\rtrigger_event\030\016 \001"
+          + "(\tH\000\022\025\n\rlanguage_code\030\002 \001(\t\022+\n\nparameter"
+          + "s\030\003 \001(\0132\027.google.protobuf.Struct\022N\n\021resp"
+          + "onse_messages\030\004 \003(\01323.google.cloud.dialo"
+          + "gflow.cx.v3beta1.ResponseMessage\022,\n\020webh"
+          + "ook_statuses\030\r \003(\0132\022.google.rpc.Status\0221"
+          + "\n\020webhook_payloads\030\006 \003(\0132\027.google.protob"
+          + "uf.Struct\022>\n\014current_page\030\007 \001(\0132(.google"
+          + ".cloud.dialogflow.cx.v3beta1.Page\022>\n\006int"
+          + "ent\030\010 \001(\0132*.google.cloud.dialogflow.cx.v"
+          + "3beta1.IntentB\002\030\001\022\'\n\033intent_detection_co"
+          + "nfidence\030\t \001(\002B\002\030\001\0228\n\005match\030\017 \001(\0132).goog"
+          + "le.cloud.dialogflow.cx.v3beta1.Match\0220\n\017"
+          + "diagnostic_info\030\n \001(\0132\027.google.protobuf."
+          + "Struct\022^\n\031sentiment_analysis_result\030\021 \001("
+          + "\0132;.google.cloud.dialogflow.cx.v3beta1.S"
+          + "entimentAnalysisResultB\007\n\005query\"\036\n\tTextI"
+          + "nput\022\021\n\004text\030\001 \001(\tB\003\340A\002\"G\n\013IntentInput\0228"
+          + "\n\006intent\030\001 \001(\tB(\340A\002\372A\"\n dialogflow.googl"
+          + "eapis.com/Intent\"f\n\nAudioInput\022I\n\006config"
+          + "\030\001 \001(\01324.google.cloud.dialogflow.cx.v3be"
+          + "ta1.InputAudioConfigB\003\340A\002\022\r\n\005audio\030\002 \001(\014"
+          + "\"\033\n\nEventInput\022\r\n\005event\030\001 \001(\t\"1\n\tDtmfInp"
+          + "ut\022\016\n\006digits\030\001 \001(\t\022\024\n\014finish_digit\030\002 \001(\t"
+          + "\"\373\002\n\005Match\022:\n\006intent\030\001 \001(\0132*.google.clou"
+          + "d.dialogflow.cx.v3beta1.Intent\022\r\n\005event\030"
+          + "\006 \001(\t\022+\n\nparameters\030\002 \001(\0132\027.google.proto"
+          + "buf.Struct\022\026\n\016resolved_input\030\003 \001(\t\022G\n\nma"
+          + "tch_type\030\004 \001(\01623.google.cloud.dialogflow"
+          + ".cx.v3beta1.Match.MatchType\022\022\n\nconfidenc"
+          + "e\030\005 \001(\002\"\204\001\n\tMatchType\022\032\n\026MATCH_TYPE_UNSP"
+          + "ECIFIED\020\000\022\n\n\006INTENT\020\001\022\021\n\rDIRECT_INTENT\020\002"
+          + "\022\025\n\021PARAMETER_FILLING\020\003\022\014\n\010NO_MATCH\020\004\022\014\n"
+          + "\010NO_INPUT\020\005\022\t\n\005EVENT\020\006\"\345\001\n\022MatchIntentRe"
+          + "quest\022:\n\007session\030\001 \001(\tB)\340A\002\372A#\n!dialogfl"
+          + "ow.googleapis.com/Session\022I\n\014query_param"
+          + "s\030\002 \001(\01323.google.cloud.dialogflow.cx.v3b"
+          + "eta1.QueryParameters\022H\n\013query_input\030\003 \001("
+          + "\0132..google.cloud.dialogflow.cx.v3beta1.Q"
+          + "ueryInputB\003\340A\002\"\232\002\n\023MatchIntentResponse\022\016"
+          + "\n\004text\030\001 \001(\tH\000\022?\n\016trigger_intent\030\002 \001(\tB%"
+          + "\372A\"\n dialogflow.googleapis.com/IntentH\000\022"
+          + "\024\n\ntranscript\030\003 \001(\tH\000\022\027\n\rtrigger_event\030\006"
+          + " \001(\tH\000\022:\n\007matches\030\004 \003(\0132).google.cloud.d"
+          + "ialogflow.cx.v3beta1.Match\022>\n\014current_pa"
+          + "ge\030\005 \001(\0132(.google.cloud.dialogflow.cx.v3"
+          + "beta1.PageB\007\n\005query\"\372\001\n\024FulfillIntentReq"
+          + "uest\022T\n\024match_intent_request\030\001 \001(\01326.goo"
+          + "gle.cloud.dialogflow.cx.v3beta1.MatchInt"
+          + "entRequest\0228\n\005match\030\002 \001(\0132).google.cloud"
+          + ".dialogflow.cx.v3beta1.Match\022R\n\023output_a"
+          + "udio_config\030\003 \001(\01325.google.cloud.dialogf"
+          + "low.cx.v3beta1.OutputAudioConfig\"\335\001\n\025Ful"
+          + "fillIntentResponse\022\023\n\013response_id\030\001 \001(\t\022"
+          + "E\n\014query_result\030\002 \001(\0132/.google.cloud.dia"
+          + "logflow.cx.v3beta1.QueryResult\022\024\n\014output"
+          + "_audio\030\003 \001(\014\022R\n\023output_audio_config\030\004 \001("
+          + "\01325.google.cloud.dialogflow.cx.v3beta1.O"
+          + "utputAudioConfig\";\n\027SentimentAnalysisRes"
+          + "ult\022\r\n\005score\030\001 \001(\002\022\021\n\tmagnitude\030\002 \001(\0022\212\n"
+          + "\n\010Sessions\022\272\002\n\014DetectIntent\0227.google.clo"
+          + "ud.dialogflow.cx.v3beta1.DetectIntentReq"
+          + "uest\0328.google.cloud.dialogflow.cx.v3beta"
+          + "1.DetectIntentResponse\"\266\001\202\323\344\223\002\257\001\"J/v3bet"
+          + "a1/{session=projects/*/locations/*/agent"
+          + "s/*/sessions/*}:detectIntent:\001*Z^\"Y/v3be"
+          + "ta1/{session=projects/*/locations/*/agen"
+          + "ts/*/environments/*/sessions/*}:detectIn"
+          + "tent:\001*\022\242\001\n\025StreamingDetectIntent\022@.goog"
+          + "le.cloud.dialogflow.cx.v3beta1.Streaming"
+          + "DetectIntentRequest\032A.google.cloud.dialo"
+          + "gflow.cx.v3beta1.StreamingDetectIntentRe"
+          + "sponse\"\000(\0010\001\022\265\002\n\013MatchIntent\0226.google.cl"
+          + "oud.dialogflow.cx.v3beta1.MatchIntentReq"
+          + "uest\0327.google.cloud.dialogflow.cx.v3beta"
+          + "1.MatchIntentResponse\"\264\001\202\323\344\223\002\255\001\"I/v3beta"
+          + "1/{session=projects/*/locations/*/agents"
+          + "/*/sessions/*}:matchIntent:\001*Z]\"X/v3beta"
+          + "1/{session=projects/*/locations/*/agents"
+          + "/*/environments/*/sessions/*}:matchInten"
+          + "t:\001*\022\351\002\n\rFulfillIntent\0228.google.cloud.di"
+          + "alogflow.cx.v3beta1.FulfillIntentRequest"
+          + "\0329.google.cloud.dialogflow.cx.v3beta1.Fu"
+          + "lfillIntentResponse\"\342\001\202\323\344\223\002\333\001\"`/v3beta1/"
+          + "{match_intent_request.session=projects/*"
+          + "/locations/*/agents/*/sessions/*}:fulfil"
+          + "lIntent:\001*Zt\"o/v3beta1/{match_intent_req"
+          + "uest.session=projects/*/locations/*/agen"
+          + "ts/*/environments/*/sessions/*}:fulfillI"
+          + "ntent:\001*\032x\312A\031dialogflow.googleapis.com\322A"
+          + "Yhttps://www.googleapis.com/auth/cloud-p"
+          + "latform,https://www.googleapis.com/auth/"
+          + "dialogflowB\203\003\n&com.google.cloud.dialogfl"
+          + "ow.cx.v3beta1B\014SessionProtoP\001ZDgoogle.go"
+          + "lang.org/genproto/googleapis/cloud/dialo"
+          + "gflow/cx/v3beta1;cx\370\001\001\242\002\002DF\252\002\"Google.Clo"
+          + "ud.Dialogflow.Cx.V3Beta1\352A\324\001\n!dialogflow"
+          + ".googleapis.com/Session\022Iprojects/{proje"
+          + "ct}/locations/{location}/agents/{agent}/"
+          + "sessions/{session}\022dprojects/{project}/l"
+          + "ocations/{location}/agents/{agent}/envir"
+          + "onments/{environment}/sessions/{session}"
+          + "b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -373,6 +375,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "SessionEntityTypes",
               "Payload",
               "Parameters",
+              "CurrentPage",
               "DisableWebhook",
               "AnalyzeQueryTextSentiment",
               "WebhookHeaders",
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookProto.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookProto.java
index 2010f28b3..c25c59100 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookProto.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookProto.java
@@ -165,113 +165,114 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "\002\022/\n\013update_mask\030\002 \001(\0132\032.google.protobuf"
           + ".FieldMask\"^\n\024DeleteWebhookRequest\0227\n\004na"
           + "me\030\001 \001(\tB)\340A\002\372A#\n!dialogflow.googleapis."
-          + "com/Webhook\022\r\n\005force\030\002 \001(\010\"\373\t\n\016WebhookRe"
+          + "com/Webhook\022\r\n\005force\030\002 \001(\010\"\222\n\n\016WebhookRe"
           + "quest\022!\n\031detect_intent_response_id\030\001 \001(\t"
           + "\022\016\n\004text\030\n \001(\tH\000\022?\n\016trigger_intent\030\013 \001(\t"
           + "B%\372A\"\n dialogflow.googleapis.com/IntentH"
           + "\000\022\024\n\ntranscript\030\014 \001(\tH\000\022\027\n\rtrigger_event"
-          + "\030\016 \001(\tH\000\022\\\n\020fulfillment_info\030\006 \001(\0132B.goo"
-          + "gle.cloud.dialogflow.cx.v3beta1.WebhookR"
-          + "equest.FulfillmentInfo\022R\n\013intent_info\030\003 "
-          + "\001(\0132=.google.cloud.dialogflow.cx.v3beta1"
-          + ".WebhookRequest.IntentInfo\022?\n\tpage_info\030"
-          + "\004 \001(\0132,.google.cloud.dialogflow.cx.v3bet"
-          + "a1.PageInfo\022E\n\014session_info\030\005 \001(\0132/.goog"
-          + "le.cloud.dialogflow.cx.v3beta1.SessionIn"
-          + "fo\022E\n\010messages\030\007 \003(\01323.google.cloud.dial"
-          + "ogflow.cx.v3beta1.ResponseMessage\022(\n\007pay"
-          + "load\030\010 \001(\0132\027.google.protobuf.Struct\022m\n\031s"
-          + "entiment_analysis_result\030\t \001(\0132J.google."
-          + "cloud.dialogflow.cx.v3beta1.WebhookReque"
-          + "st.SentimentAnalysisResult\032\036\n\017Fulfillmen"
-          + "tInfo\022\013\n\003tag\030\001 \001(\t\032\305\003\n\nIntentInfo\022B\n\023las"
-          + "t_matched_intent\030\001 \001(\tB%\372A\"\n dialogflow."
-          + "googleapis.com/Intent\022\024\n\014display_name\030\003 "
-          + "\001(\t\022a\n\nparameters\030\002 \003(\0132M.google.cloud.d"
-          + "ialogflow.cx.v3beta1.WebhookRequest.Inte"
-          + "ntInfo.ParametersEntry\022\022\n\nconfidence\030\004 \001"
-          + "(\002\032^\n\024IntentParameterValue\022\026\n\016original_v"
-          + "alue\030\001 \001(\t\022.\n\016resolved_value\030\002 \001(\0132\026.goo"
-          + "gle.protobuf.Value\032\205\001\n\017ParametersEntry\022\013"
-          + "\n\003key\030\001 \001(\t\022a\n\005value\030\002 \001(\0132R.google.clou"
+          + "\030\016 \001(\tH\000\022\025\n\rlanguage_code\030\017 \001(\t\022\\\n\020fulfi"
+          + "llment_info\030\006 \001(\0132B.google.cloud.dialogf"
+          + "low.cx.v3beta1.WebhookRequest.Fulfillmen"
+          + "tInfo\022R\n\013intent_info\030\003 \001(\0132=.google.clou"
           + "d.dialogflow.cx.v3beta1.WebhookRequest.I"
-          + "ntentInfo.IntentParameterValue:\0028\001\032;\n\027Se"
-          + "ntimentAnalysisResult\022\r\n\005score\030\001 \001(\002\022\021\n\t"
-          + "magnitude\030\002 \001(\002B\007\n\005query\"\310\005\n\017WebhookResp"
-          + "onse\022e\n\024fulfillment_response\030\001 \001(\0132G.goo"
-          + "gle.cloud.dialogflow.cx.v3beta1.WebhookR"
-          + "esponse.FulfillmentResponse\022?\n\tpage_info"
-          + "\030\002 \001(\0132,.google.cloud.dialogflow.cx.v3be"
-          + "ta1.PageInfo\022E\n\014session_info\030\003 \001(\0132/.goo"
-          + "gle.cloud.dialogflow.cx.v3beta1.SessionI"
-          + "nfo\022(\n\007payload\030\004 \001(\0132\027.google.protobuf.S"
-          + "truct\022:\n\013target_page\030\005 \001(\tB#\372A \n\036dialogf"
-          + "low.googleapis.com/PageH\000\022:\n\013target_flow"
-          + "\030\006 \001(\tB#\372A \n\036dialogflow.googleapis.com/F"
-          + "lowH\000\032\225\002\n\023FulfillmentResponse\022E\n\010message"
-          + "s\030\001 \003(\01323.google.cloud.dialogflow.cx.v3b"
-          + "eta1.ResponseMessage\022m\n\016merge_behavior\030\002"
-          + " \001(\0162U.google.cloud.dialogflow.cx.v3beta"
-          + "1.WebhookResponse.FulfillmentResponse.Me"
-          + "rgeBehavior\"H\n\rMergeBehavior\022\036\n\032MERGE_BE"
-          + "HAVIOR_UNSPECIFIED\020\000\022\n\n\006APPEND\020\001\022\013\n\007REPL"
-          + "ACE\020\002B\014\n\ntransition\"\254\004\n\010PageInfo\0229\n\014curr"
-          + "ent_page\030\001 \001(\tB#\372A \n\036dialogflow.googleap"
-          + "is.com/Page\022H\n\tform_info\030\003 \001(\01325.google."
-          + "cloud.dialogflow.cx.v3beta1.PageInfo.For"
-          + "mInfo\032\232\003\n\010FormInfo\022[\n\016parameter_info\030\002 \003"
-          + "(\0132C.google.cloud.dialogflow.cx.v3beta1."
-          + "PageInfo.FormInfo.ParameterInfo\032\260\002\n\rPara"
-          + "meterInfo\022\024\n\014display_name\030\001 \001(\t\022\020\n\010requi"
-          + "red\030\002 \001(\010\022a\n\005state\030\003 \001(\0162R.google.cloud."
-          + "dialogflow.cx.v3beta1.PageInfo.FormInfo."
-          + "ParameterInfo.ParameterState\022%\n\005value\030\004 "
-          + "\001(\0132\026.google.protobuf.Value\022\026\n\016just_coll"
-          + "ected\030\005 \001(\010\"U\n\016ParameterState\022\037\n\033PARAMET"
-          + "ER_STATE_UNSPECIFIED\020\000\022\t\n\005EMPTY\020\001\022\013\n\007INV"
-          + "ALID\020\002\022\n\n\006FILLED\020\003\"\346\001\n\013SessionInfo\0227\n\007se"
-          + "ssion\030\001 \001(\tB&\372A#\n!dialogflow.googleapis."
-          + "com/Session\022S\n\nparameters\030\002 \003(\0132?.google"
-          + ".cloud.dialogflow.cx.v3beta1.SessionInfo"
-          + ".ParametersEntry\032I\n\017ParametersEntry\022\013\n\003k"
-          + "ey\030\001 \001(\t\022%\n\005value\030\002 \001(\0132\026.google.protobu"
-          + "f.Value:\0028\0012\375\010\n\010Webhooks\022\316\001\n\014ListWebhook"
-          + "s\0227.google.cloud.dialogflow.cx.v3beta1.L"
-          + "istWebhooksRequest\0328.google.cloud.dialog"
-          + "flow.cx.v3beta1.ListWebhooksResponse\"K\202\323"
-          + "\344\223\002<\022:/v3beta1/{parent=projects/*/locati"
-          + "ons/*/agents/*}/webhooks\332A\006parent\022\273\001\n\nGe"
-          + "tWebhook\0225.google.cloud.dialogflow.cx.v3"
-          + "beta1.GetWebhookRequest\032+.google.cloud.d"
-          + "ialogflow.cx.v3beta1.Webhook\"I\202\323\344\223\002<\022:/v"
-          + "3beta1/{name=projects/*/locations/*/agen"
-          + "ts/*/webhooks/*}\332A\004name\022\324\001\n\rCreateWebhoo"
-          + "k\0228.google.cloud.dialogflow.cx.v3beta1.C"
-          + "reateWebhookRequest\032+.google.cloud.dialo"
-          + "gflow.cx.v3beta1.Webhook\"\\\202\323\344\223\002E\":/v3bet"
-          + "a1/{parent=projects/*/locations/*/agents"
-          + "/*}/webhooks:\007webhook\332A\016parent,webhook\022\341"
-          + "\001\n\rUpdateWebhook\0228.google.cloud.dialogfl"
-          + "ow.cx.v3beta1.UpdateWebhookRequest\032+.goo"
-          + "gle.cloud.dialogflow.cx.v3beta1.Webhook\""
-          + "i\202\323\344\223\002M2B/v3beta1/{webhook.name=projects"
-          + "/*/locations/*/agents/*/webhooks/*}:\007web"
-          + "hook\332A\023webhook,update_mask\022\254\001\n\rDeleteWeb"
-          + "hook\0228.google.cloud.dialogflow.cx.v3beta"
-          + "1.DeleteWebhookRequest\032\026.google.protobuf"
-          + ".Empty\"I\202\323\344\223\002<*:/v3beta1/{name=projects/"
-          + "*/locations/*/agents/*/webhooks/*}\332A\004nam"
-          + "e\032x\312A\031dialogflow.googleapis.com\322AYhttps:"
-          + "//www.googleapis.com/auth/cloud-platform"
-          + ",https://www.googleapis.com/auth/dialogf"
-          + "lowB\252\002\n&com.google.cloud.dialogflow.cx.v"
-          + "3beta1B\014WebhookProtoP\001ZDgoogle.golang.or"
-          + "g/genproto/googleapis/cloud/dialogflow/c"
-          + "x/v3beta1;cx\370\001\001\242\002\002DF\252\002\"Google.Cloud.Dial"
-          + "ogflow.Cx.V3Beta1\352A|\n\'servicedirectory.g"
-          + "oogleapis.com/Service\022Qprojects/{project"
-          + "}/locations/{location}/namespaces/{names"
-          + "pace}/services/{service}b\006proto3"
+          + "ntentInfo\022?\n\tpage_info\030\004 \001(\0132,.google.cl"
+          + "oud.dialogflow.cx.v3beta1.PageInfo\022E\n\014se"
+          + "ssion_info\030\005 \001(\0132/.google.cloud.dialogfl"
+          + "ow.cx.v3beta1.SessionInfo\022E\n\010messages\030\007 "
+          + "\003(\01323.google.cloud.dialogflow.cx.v3beta1"
+          + ".ResponseMessage\022(\n\007payload\030\010 \001(\0132\027.goog"
+          + "le.protobuf.Struct\022m\n\031sentiment_analysis"
+          + "_result\030\t \001(\0132J.google.cloud.dialogflow."
+          + "cx.v3beta1.WebhookRequest.SentimentAnaly"
+          + "sisResult\032\036\n\017FulfillmentInfo\022\013\n\003tag\030\001 \001("
+          + "\t\032\305\003\n\nIntentInfo\022B\n\023last_matched_intent\030"
+          + "\001 \001(\tB%\372A\"\n dialogflow.googleapis.com/In"
+          + "tent\022\024\n\014display_name\030\003 \001(\t\022a\n\nparameters"
+          + "\030\002 \003(\0132M.google.cloud.dialogflow.cx.v3be"
+          + "ta1.WebhookRequest.IntentInfo.Parameters"
+          + "Entry\022\022\n\nconfidence\030\004 \001(\002\032^\n\024IntentParam"
+          + "eterValue\022\026\n\016original_value\030\001 \001(\t\022.\n\016res"
+          + "olved_value\030\002 \001(\0132\026.google.protobuf.Valu"
+          + "e\032\205\001\n\017ParametersEntry\022\013\n\003key\030\001 \001(\t\022a\n\005va"
+          + "lue\030\002 \001(\0132R.google.cloud.dialogflow.cx.v"
+          + "3beta1.WebhookRequest.IntentInfo.IntentP"
+          + "arameterValue:\0028\001\032;\n\027SentimentAnalysisRe"
+          + "sult\022\r\n\005score\030\001 \001(\002\022\021\n\tmagnitude\030\002 \001(\002B\007"
+          + "\n\005query\"\310\005\n\017WebhookResponse\022e\n\024fulfillme"
+          + "nt_response\030\001 \001(\0132G.google.cloud.dialogf"
+          + "low.cx.v3beta1.WebhookResponse.Fulfillme"
+          + "ntResponse\022?\n\tpage_info\030\002 \001(\0132,.google.c"
+          + "loud.dialogflow.cx.v3beta1.PageInfo\022E\n\014s"
+          + "ession_info\030\003 \001(\0132/.google.cloud.dialogf"
+          + "low.cx.v3beta1.SessionInfo\022(\n\007payload\030\004 "
+          + "\001(\0132\027.google.protobuf.Struct\022:\n\013target_p"
+          + "age\030\005 \001(\tB#\372A \n\036dialogflow.googleapis.co"
+          + "m/PageH\000\022:\n\013target_flow\030\006 \001(\tB#\372A \n\036dial"
+          + "ogflow.googleapis.com/FlowH\000\032\225\002\n\023Fulfill"
+          + "mentResponse\022E\n\010messages\030\001 \003(\01323.google."
+          + "cloud.dialogflow.cx.v3beta1.ResponseMess"
+          + "age\022m\n\016merge_behavior\030\002 \001(\0162U.google.clo"
+          + "ud.dialogflow.cx.v3beta1.WebhookResponse"
+          + ".FulfillmentResponse.MergeBehavior\"H\n\rMe"
+          + "rgeBehavior\022\036\n\032MERGE_BEHAVIOR_UNSPECIFIE"
+          + "D\020\000\022\n\n\006APPEND\020\001\022\013\n\007REPLACE\020\002B\014\n\ntransiti"
+          + "on\"\254\004\n\010PageInfo\0229\n\014current_page\030\001 \001(\tB#\372"
+          + "A \n\036dialogflow.googleapis.com/Page\022H\n\tfo"
+          + "rm_info\030\003 \001(\01325.google.cloud.dialogflow."
+          + "cx.v3beta1.PageInfo.FormInfo\032\232\003\n\010FormInf"
+          + "o\022[\n\016parameter_info\030\002 \003(\0132C.google.cloud"
+          + ".dialogflow.cx.v3beta1.PageInfo.FormInfo"
+          + ".ParameterInfo\032\260\002\n\rParameterInfo\022\024\n\014disp"
+          + "lay_name\030\001 \001(\t\022\020\n\010required\030\002 \001(\010\022a\n\005stat"
+          + "e\030\003 \001(\0162R.google.cloud.dialogflow.cx.v3b"
+          + "eta1.PageInfo.FormInfo.ParameterInfo.Par"
+          + "ameterState\022%\n\005value\030\004 \001(\0132\026.google.prot"
+          + "obuf.Value\022\026\n\016just_collected\030\005 \001(\010\"U\n\016Pa"
+          + "rameterState\022\037\n\033PARAMETER_STATE_UNSPECIF"
+          + "IED\020\000\022\t\n\005EMPTY\020\001\022\013\n\007INVALID\020\002\022\n\n\006FILLED\020"
+          + "\003\"\346\001\n\013SessionInfo\0227\n\007session\030\001 \001(\tB&\372A#\n"
+          + "!dialogflow.googleapis.com/Session\022S\n\npa"
+          + "rameters\030\002 \003(\0132?.google.cloud.dialogflow"
+          + ".cx.v3beta1.SessionInfo.ParametersEntry\032"
+          + "I\n\017ParametersEntry\022\013\n\003key\030\001 \001(\t\022%\n\005value"
+          + "\030\002 \001(\0132\026.google.protobuf.Value:\0028\0012\375\010\n\010W"
+          + "ebhooks\022\316\001\n\014ListWebhooks\0227.google.cloud."
+          + "dialogflow.cx.v3beta1.ListWebhooksReques"
+          + "t\0328.google.cloud.dialogflow.cx.v3beta1.L"
+          + "istWebhooksResponse\"K\202\323\344\223\002<\022:/v3beta1/{p"
+          + "arent=projects/*/locations/*/agents/*}/w"
+          + "ebhooks\332A\006parent\022\273\001\n\nGetWebhook\0225.google"
+          + ".cloud.dialogflow.cx.v3beta1.GetWebhookR"
+          + "equest\032+.google.cloud.dialogflow.cx.v3be"
+          + "ta1.Webhook\"I\202\323\344\223\002<\022:/v3beta1/{name=proj"
+          + "ects/*/locations/*/agents/*/webhooks/*}\332"
+          + "A\004name\022\324\001\n\rCreateWebhook\0228.google.cloud."
+          + "dialogflow.cx.v3beta1.CreateWebhookReque"
+          + "st\032+.google.cloud.dialogflow.cx.v3beta1."
+          + "Webhook\"\\\202\323\344\223\002E\":/v3beta1/{parent=projec"
+          + "ts/*/locations/*/agents/*}/webhooks:\007web"
+          + "hook\332A\016parent,webhook\022\341\001\n\rUpdateWebhook\022"
+          + "8.google.cloud.dialogflow.cx.v3beta1.Upd"
+          + "ateWebhookRequest\032+.google.cloud.dialogf"
+          + "low.cx.v3beta1.Webhook\"i\202\323\344\223\002M2B/v3beta1"
+          + "/{webhook.name=projects/*/locations/*/ag"
+          + "ents/*/webhooks/*}:\007webhook\332A\023webhook,up"
+          + "date_mask\022\254\001\n\rDeleteWebhook\0228.google.clo"
+          + "ud.dialogflow.cx.v3beta1.DeleteWebhookRe"
+          + "quest\032\026.google.protobuf.Empty\"I\202\323\344\223\002<*:/"
+          + "v3beta1/{name=projects/*/locations/*/age"
+          + "nts/*/webhooks/*}\332A\004name\032x\312A\031dialogflow."
+          + "googleapis.com\322AYhttps://www.googleapis."
+          + "com/auth/cloud-platform,https://www.goog"
+          + "leapis.com/auth/dialogflowB\252\002\n&com.googl"
+          + "e.cloud.dialogflow.cx.v3beta1B\014WebhookPr"
+          + "otoP\001ZDgoogle.golang.org/genproto/google"
+          + "apis/cloud/dialogflow/cx/v3beta1;cx\370\001\001\242\002"
+          + "\002DF\252\002\"Google.Cloud.Dialogflow.Cx.V3Beta1"
+          + "\352A|\n\'servicedirectory.googleapis.com/Ser"
+          + "vice\022Qprojects/{project}/locations/{loca"
+          + "tion}/namespaces/{namespace}/services/{s"
+          + "ervice}b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -374,6 +375,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "TriggerIntent",
               "Transcript",
               "TriggerEvent",
+              "LanguageCode",
               "FulfillmentInfo",
               "IntentInfo",
               "PageInfo",
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequest.java
index f4b8f8fca..50639052a 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequest.java
@@ -40,6 +40,7 @@ private WebhookRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder
 
   private WebhookRequest() {
     detectIntentResponseId_ = "";
+    languageCode_ = "";
     messages_ = java.util.Collections.emptyList();
   }
 
@@ -225,6 +226,13 @@ private WebhookRequest(
               query_ = s;
               break;
             }
+          case 122:
+            {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              languageCode_ = s;
+              break;
+            }
           default:
             {
               if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
@@ -4638,6 +4646,57 @@ public com.google.protobuf.ByteString getTriggerEventBytes() {
     }
   }
 
+  public static final int LANGUAGE_CODE_FIELD_NUMBER = 15;
+  private volatile java.lang.Object languageCode_;
+  /**
+   *
+   *
+   * <pre>
+   * The language code specified in the [original
+   * request][QueryInput.language_code].
+   * </pre>
+   *
+   * <code>string language_code = 15;</code>
+   *
+   * @return The languageCode.
+   */
+  @java.lang.Override
+  public java.lang.String getLanguageCode() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      languageCode_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * <pre>
+   * The language code specified in the [original
+   * request][QueryInput.language_code].
+   * </pre>
+   *
+   * <code>string language_code = 15;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getLanguageCodeBytes() {
+    java.lang.Object ref = languageCode_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      languageCode_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
   public static final int FULFILLMENT_INFO_FIELD_NUMBER = 6;
   private com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillmentInfo_;
   /**
@@ -5076,6 +5135,9 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (queryCase_ == 14) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 14, query_);
     }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 15, languageCode_);
+    }
     unknownFields.writeTo(output);
   }
 
@@ -5122,6 +5184,9 @@ public int getSerializedSize() {
     if (queryCase_ == 14) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(14, query_);
     }
+    if (!getLanguageCodeBytes().isEmpty()) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(15, languageCode_);
+    }
     size += unknownFields.getSerializedSize();
     memoizedSize = size;
     return size;
@@ -5139,6 +5204,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest) obj;
 
     if (!getDetectIntentResponseId().equals(other.getDetectIntentResponseId())) return false;
+    if (!getLanguageCode().equals(other.getLanguageCode())) return false;
     if (hasFulfillmentInfo() != other.hasFulfillmentInfo()) return false;
     if (hasFulfillmentInfo()) {
       if (!getFulfillmentInfo().equals(other.getFulfillmentInfo())) return false;
@@ -5194,6 +5260,8 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + DETECT_INTENT_RESPONSE_ID_FIELD_NUMBER;
     hash = (53 * hash) + getDetectIntentResponseId().hashCode();
+    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+    hash = (53 * hash) + getLanguageCode().hashCode();
     if (hasFulfillmentInfo()) {
       hash = (37 * hash) + FULFILLMENT_INFO_FIELD_NUMBER;
       hash = (53 * hash) + getFulfillmentInfo().hashCode();
@@ -5393,6 +5461,8 @@ public Builder clear() {
       super.clear();
       detectIntentResponseId_ = "";
 
+      languageCode_ = "";
+
       if (fulfillmentInfoBuilder_ == null) {
         fulfillmentInfo_ = null;
       } else {
@@ -5478,6 +5548,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest buildPartial() {
       if (queryCase_ == 14) {
         result.query_ = query_;
       }
+      result.languageCode_ = languageCode_;
       if (fulfillmentInfoBuilder_ == null) {
         result.fulfillmentInfo_ = fulfillmentInfo_;
       } else {
@@ -5572,6 +5643,10 @@ public Builder mergeFrom(com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest o
         detectIntentResponseId_ = other.detectIntentResponseId_;
         onChanged();
       }
+      if (!other.getLanguageCode().isEmpty()) {
+        languageCode_ = other.languageCode_;
+        onChanged();
+      }
       if (other.hasFulfillmentInfo()) {
         mergeFulfillmentInfo(other.getFulfillmentInfo());
       }
@@ -6380,6 +6455,117 @@ public Builder setTriggerEventBytes(com.google.protobuf.ByteString value) {
       return this;
     }
 
+    private java.lang.Object languageCode_ = "";
+    /**
+     *
+     *
+     * <pre>
+     * The language code specified in the [original
+     * request][QueryInput.language_code].
+     * </pre>
+     *
+     * <code>string language_code = 15;</code>
+     *
+     * @return The languageCode.
+     */
+    public java.lang.String getLanguageCode() {
+      java.lang.Object ref = languageCode_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        languageCode_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language code specified in the [original
+     * request][QueryInput.language_code].
+     * </pre>
+     *
+     * <code>string language_code = 15;</code>
+     *
+     * @return The bytes for languageCode.
+     */
+    public com.google.protobuf.ByteString getLanguageCodeBytes() {
+      java.lang.Object ref = languageCode_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        languageCode_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language code specified in the [original
+     * request][QueryInput.language_code].
+     * </pre>
+     *
+     * <code>string language_code = 15;</code>
+     *
+     * @param value The languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCode(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language code specified in the [original
+     * request][QueryInput.language_code].
+     * </pre>
+     *
+     * <code>string language_code = 15;</code>
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLanguageCode() {
+
+      languageCode_ = getDefaultInstance().getLanguageCode();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * <pre>
+     * The language code specified in the [original
+     * request][QueryInput.language_code].
+     * </pre>
+     *
+     * <code>string language_code = 15;</code>
+     *
+     * @param value The bytes for languageCode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+
+      languageCode_ = value;
+      onChanged();
+      return this;
+    }
+
     private com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo fulfillmentInfo_;
     private com.google.protobuf.SingleFieldBuilderV3<
             com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo,
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequestOrBuilder.java
index 97d24041b..6c13788d6 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/WebhookRequestOrBuilder.java
@@ -216,6 +216,33 @@ public interface WebhookRequestOrBuilder
    */
   com.google.protobuf.ByteString getTriggerEventBytes();
 
+  /**
+   *
+   *
+   * <pre>
+   * The language code specified in the [original
+   * request][QueryInput.language_code].
+   * </pre>
+   *
+   * <code>string language_code = 15;</code>
+   *
+   * @return The languageCode.
+   */
+  java.lang.String getLanguageCode();
+  /**
+   *
+   *
+   * <pre>
+   * The language code specified in the [original
+   * request][QueryInput.language_code].
+   * </pre>
+   *
+   * <code>string language_code = 15;</code>
+   *
+   * @return The bytes for languageCode.
+   */
+  com.google.protobuf.ByteString getLanguageCodeBytes();
+
   /**
    *
    *
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/flow.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/flow.proto
index f8b92b5eb..088611818 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/flow.proto
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/flow.proto
@@ -225,6 +225,20 @@ message Flow {
   // get executed, with the rest being ignored.
   repeated EventHandler event_handlers = 10;
 
+  // A flow's transition route group serve two purposes:
+  //
+  // *   They are responsible for matching the user's first utterances in the
+  // flow.
+  // *   They are inherited by every page's [transition
+  // route groups][Page.transition_route_groups]. Transition route groups
+  // defined in the page have higher priority than those defined in the flow.
+  //
+  // Format:`projects/<Project ID>/locations/<Location ID>/agents/<Agent
+  // ID>/flows/<Flow ID>/transitionRouteGroups/<TransitionRouteGroup ID>`.
+  repeated string transition_route_groups = 15 [(google.api.resource_reference) = {
+                                                  type: "dialogflow.googleapis.com/TransitionRouteGroup"
+                                                }];
+
   // NLU related settings of the flow.
   NluSettings nlu_settings = 11;
 }
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/intent.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/intent.proto
index c0479c472..96d994d26 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/intent.proto
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/intent.proto
@@ -199,7 +199,7 @@ message Intent {
   // fallback intents act as negative examples that triggers no-match event.
   bool is_fallback = 6;
 
-  // Optional. The key/value metadata to label an intent. Labels can contain
+  // The key/value metadata to label an intent. Labels can contain
   // lowercase letters, digits and the symbols '-' and '_'. International
   // characters are allowed, including letters from unicase alphabets. Keys must
   // start with a letter. Keys and values can be no longer than 63 characters
@@ -211,11 +211,11 @@ message Intent {
   // * sys-contextual
   // The above labels do not require value. "sys-head" means the intent is a
   // head intent. "sys-contextual" means the intent is a contextual intent.
-  map<string, string> labels = 7 [(google.api.field_behavior) = OPTIONAL];
+  map<string, string> labels = 7;
 
-  // Optional. Human readable description for better understanding an intent like its
+  // Human readable description for better understanding an intent like its
   // scope, content, result etc. Maximum character limit: 140 characters.
-  string description = 8 [(google.api.field_behavior) = OPTIONAL];
+  string description = 8;
 }
 
 // The request message for [Intents.ListIntents][google.cloud.dialogflow.cx.v3beta1.Intents.ListIntents].
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/session.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/session.proto
index 62291cb81..f331f1a2b 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/session.proto
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/session.proto
@@ -388,6 +388,21 @@ message QueryParameters {
   //     -   Else: parameter value
   google.protobuf.Struct parameters = 5;
 
+  // The unique identifier of the [page][google.cloud.dialogflow.cx.v3beta1.Page] to override the [current
+  // page][QueryResult.current_page] in the session. Format: `projects/<Project
+  // ID>/locations/<Location ID>/agents/<Agent ID>/pages/<page ID>`.
+  //
+  // If `current_page` is specified, the previous state of the session will be
+  // ignored by Dialogflow, including the [previous
+  // page][QueryResult.current_page] and the [previous session
+  // parameters][QueryResult.parameters].
+  // In most cases, [current_page][google.cloud.dialogflow.cx.v3beta1.QueryParameters.current_page] and
+  // [parameters][google.cloud.dialogflow.cx.v3beta1.QueryParameters.parameters] should be configured together to
+  // direct a session to a specific state.
+  string current_page = 6 [(google.api.resource_reference) = {
+                             type: "dialogflow.googleapis.com/Page"
+                           }];
+
   // Whether to disable webhook calls for this request.
   bool disable_webhook = 7;
 
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/webhook.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/webhook.proto
index 522ff9cae..d0fb224f6 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/webhook.proto
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/webhook.proto
@@ -314,6 +314,10 @@ message WebhookRequest {
     string trigger_event = 14;
   }
 
+  // The language code specified in the [original
+  // request][QueryInput.language_code].
+  string language_code = 15;
+
   // Always present. Information about the fulfillment that triggered this
   // webhook call.
   FulfillmentInfo fulfillment_info = 6;
diff --git a/synth.metadata b/synth.metadata
index e3dc5aa16..8251aed1e 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -11,16 +11,16 @@
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "163ed6c0450949662bf2e6997eb7e0782cd4d800",
-        "internalRef": "367042726"
+        "sha": "9a386bc12400c03f81c97f599d7ba7cb0b440577",
+        "internalRef": "367052612"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "163ed6c0450949662bf2e6997eb7e0782cd4d800",
-        "internalRef": "367042726"
+        "sha": "9a386bc12400c03f81c97f599d7ba7cb0b440577",
+        "internalRef": "367052612"
       }
     },
     {