diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/Agent.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/Agent.java
index eef617a2c..a3bf74da1 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/Agent.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/Agent.java
@@ -312,7 +312,7 @@ public com.google.protobuf.ByteString getDisplayNameBytes() {
    * <pre>
    * Immutable. The default language of the agent as a language tag.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3.Agents.UpdateAgent] method.
    * </pre>
@@ -339,7 +339,7 @@ public java.lang.String getDefaultLanguageCode() {
    * <pre>
    * Immutable. The default language of the agent as a language tag.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3.Agents.UpdateAgent] method.
    * </pre>
@@ -1446,7 +1446,7 @@ public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
      * <pre>
      * Immutable. The default language of the agent as a language tag.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3.Agents.UpdateAgent] method.
      * </pre>
@@ -1472,7 +1472,7 @@ public java.lang.String getDefaultLanguageCode() {
      * <pre>
      * Immutable. The default language of the agent as a language tag.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3.Agents.UpdateAgent] method.
      * </pre>
@@ -1498,7 +1498,7 @@ public com.google.protobuf.ByteString getDefaultLanguageCodeBytes() {
      * <pre>
      * Immutable. The default language of the agent as a language tag.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3.Agents.UpdateAgent] method.
      * </pre>
@@ -1523,7 +1523,7 @@ public Builder setDefaultLanguageCode(java.lang.String value) {
      * <pre>
      * Immutable. The default language of the agent as a language tag.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3.Agents.UpdateAgent] method.
      * </pre>
@@ -1544,7 +1544,7 @@ public Builder clearDefaultLanguageCode() {
      * <pre>
      * Immutable. The default language of the agent as a language tag.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3.Agents.UpdateAgent] method.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AgentOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AgentOrBuilder.java
index 260bfc486..14ace9bbd 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AgentOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/AgentOrBuilder.java
@@ -85,7 +85,7 @@ public interface AgentOrBuilder
    * <pre>
    * Immutable. The default language of the agent as a language tag.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3.Agents.UpdateAgent] method.
    * </pre>
@@ -101,7 +101,7 @@ public interface AgentOrBuilder
    * <pre>
    * Immutable. The default language of the agent as a language tag.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3.Agents.UpdateAgent] method.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateEntityTypeRequest.java
index 9d26578e3..3430ece99 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateEntityTypeRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateEntityTypeRequest.java
@@ -256,7 +256,7 @@ public com.google.cloud.dialogflow.cx.v3.EntityTypeOrBuilder getEntityTypeOrBuil
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -287,7 +287,7 @@ public java.lang.String getLanguageCode() {
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -1008,7 +1008,7 @@ public com.google.cloud.dialogflow.cx.v3.EntityTypeOrBuilder getEntityTypeOrBuil
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1038,7 +1038,7 @@ public java.lang.String getLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1068,7 +1068,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1097,7 +1097,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1122,7 +1122,7 @@ public Builder clearLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateEntityTypeRequestOrBuilder.java
index df9fb244f..029b9afc8 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateEntityTypeRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateEntityTypeRequestOrBuilder.java
@@ -105,7 +105,7 @@ public interface CreateEntityTypeRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -125,7 +125,7 @@ public interface CreateEntityTypeRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateFlowRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateFlowRequest.java
index b2ea3cf11..33be9d04e 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateFlowRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateFlowRequest.java
@@ -250,7 +250,7 @@ public com.google.cloud.dialogflow.cx.v3.FlowOrBuilder getFlowOrBuilder() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -280,7 +280,7 @@ public java.lang.String getLanguageCode() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -985,7 +985,7 @@ public com.google.cloud.dialogflow.cx.v3.FlowOrBuilder getFlowOrBuilder() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1014,7 +1014,7 @@ public java.lang.String getLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1043,7 +1043,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1071,7 +1071,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1095,7 +1095,7 @@ public Builder clearLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateFlowRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateFlowRequestOrBuilder.java
index 96277b78b..7810f2f68 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateFlowRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateFlowRequestOrBuilder.java
@@ -101,7 +101,7 @@ public interface CreateFlowRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -120,7 +120,7 @@ public interface CreateFlowRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateIntentRequest.java
index 76077ce11..6b30d6f53 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateIntentRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateIntentRequest.java
@@ -254,7 +254,7 @@ public com.google.cloud.dialogflow.cx.v3.IntentOrBuilder getIntentOrBuilder() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -283,7 +283,7 @@ public java.lang.String getLanguageCode() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -1001,7 +1001,7 @@ public com.google.cloud.dialogflow.cx.v3.IntentOrBuilder getIntentOrBuilder() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1029,7 +1029,7 @@ public java.lang.String getLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1057,7 +1057,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1084,7 +1084,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1107,7 +1107,7 @@ public Builder clearLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateIntentRequestOrBuilder.java
index 06ac9ed38..c6e8f1363 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateIntentRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateIntentRequestOrBuilder.java
@@ -103,7 +103,7 @@ public interface CreateIntentRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -121,7 +121,7 @@ public interface CreateIntentRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreatePageRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreatePageRequest.java
index 2459b07c2..9432f43ea 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreatePageRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreatePageRequest.java
@@ -256,7 +256,7 @@ public com.google.cloud.dialogflow.cx.v3.PageOrBuilder getPageOrBuilder() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -290,7 +290,7 @@ public java.lang.String getLanguageCode() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -1004,7 +1004,7 @@ public com.google.cloud.dialogflow.cx.v3.PageOrBuilder getPageOrBuilder() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1037,7 +1037,7 @@ public java.lang.String getLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1070,7 +1070,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1102,7 +1102,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1130,7 +1130,7 @@ public Builder clearLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreatePageRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreatePageRequestOrBuilder.java
index fd3dcbab2..7c87b3872 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreatePageRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreatePageRequestOrBuilder.java
@@ -107,7 +107,7 @@ public interface CreatePageRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -130,7 +130,7 @@ public interface CreatePageRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateTransitionRouteGroupRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateTransitionRouteGroupRequest.java
index 0b734a80d..7c25dec42 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateTransitionRouteGroupRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateTransitionRouteGroupRequest.java
@@ -260,7 +260,7 @@ public com.google.cloud.dialogflow.cx.v3.TransitionRouteGroup getTransitionRoute
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -290,7 +290,7 @@ public java.lang.String getLanguageCode() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -1029,7 +1029,7 @@ public Builder clearTransitionRouteGroup() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1058,7 +1058,7 @@ public java.lang.String getLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1087,7 +1087,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1115,7 +1115,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1139,7 +1139,7 @@ public Builder clearLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateTransitionRouteGroupRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateTransitionRouteGroupRequestOrBuilder.java
index 508098351..d072fb6ba 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateTransitionRouteGroupRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/CreateTransitionRouteGroupRequestOrBuilder.java
@@ -107,7 +107,7 @@ public interface CreateTransitionRouteGroupRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -126,7 +126,7 @@ public interface CreateTransitionRouteGroupRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetEntityTypeRequest.java
index 9200cef81..e768a380e 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetEntityTypeRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetEntityTypeRequest.java
@@ -189,7 +189,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -221,7 +221,7 @@ public java.lang.String getLanguageCode() {
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -716,7 +716,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -747,7 +747,7 @@ public java.lang.String getLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -778,7 +778,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -808,7 +808,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -834,7 +834,7 @@ public Builder clearLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetEntityTypeRequestOrBuilder.java
index 0198a295f..91a2de4e6 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetEntityTypeRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetEntityTypeRequestOrBuilder.java
@@ -67,7 +67,7 @@ public interface GetEntityTypeRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -88,7 +88,7 @@ public interface GetEntityTypeRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetFlowRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetFlowRequest.java
index 0db815eeb..4f7e74092 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetFlowRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetFlowRequest.java
@@ -188,7 +188,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -219,7 +219,7 @@ public java.lang.String getLanguageCode() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -711,7 +711,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -741,7 +741,7 @@ public java.lang.String getLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -771,7 +771,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -800,7 +800,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -825,7 +825,7 @@ public Builder clearLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetFlowRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetFlowRequestOrBuilder.java
index 087e5aa7d..22c181a14 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetFlowRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetFlowRequestOrBuilder.java
@@ -66,7 +66,7 @@ public interface GetFlowRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -86,7 +86,7 @@ public interface GetFlowRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetIntentRequest.java
index 9934e932d..1fa8efdb9 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetIntentRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetIntentRequest.java
@@ -187,7 +187,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -217,7 +217,7 @@ public java.lang.String getLanguageCode() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -709,7 +709,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -738,7 +738,7 @@ public java.lang.String getLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -767,7 +767,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -795,7 +795,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -819,7 +819,7 @@ public Builder clearLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetIntentRequestOrBuilder.java
index bc452bd27..dd31b4b31 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetIntentRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetIntentRequestOrBuilder.java
@@ -65,7 +65,7 @@ public interface GetIntentRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -84,7 +84,7 @@ public interface GetIntentRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetPageRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetPageRequest.java
index b320d1631..5e2710b5c 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetPageRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetPageRequest.java
@@ -192,7 +192,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -227,7 +227,7 @@ public java.lang.String getLanguageCode() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -723,7 +723,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -757,7 +757,7 @@ public java.lang.String getLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -791,7 +791,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -824,7 +824,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -853,7 +853,7 @@ public Builder clearLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetPageRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetPageRequestOrBuilder.java
index 39363195a..ce588a65e 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetPageRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetPageRequestOrBuilder.java
@@ -70,7 +70,7 @@ public interface GetPageRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -94,7 +94,7 @@ public interface GetPageRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetTransitionRouteGroupRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetTransitionRouteGroupRequest.java
index 9ac8f31cb..0ab0c1501 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetTransitionRouteGroupRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetTransitionRouteGroupRequest.java
@@ -188,7 +188,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -218,7 +218,7 @@ public java.lang.String getLanguageCode() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -715,7 +715,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -744,7 +744,7 @@ public java.lang.String getLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -773,7 +773,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -801,7 +801,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -825,7 +825,7 @@ public Builder clearLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetTransitionRouteGroupRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetTransitionRouteGroupRequestOrBuilder.java
index 49b8f4832..31923957d 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetTransitionRouteGroupRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/GetTransitionRouteGroupRequestOrBuilder.java
@@ -65,7 +65,7 @@ public interface GetTransitionRouteGroupRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -84,7 +84,7 @@ public interface GetTransitionRouteGroupRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListEntityTypesRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListEntityTypesRequest.java
index 01d514eff..6a6124ec1 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListEntityTypesRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListEntityTypesRequest.java
@@ -200,7 +200,7 @@ public com.google.protobuf.ByteString getParentBytes() {
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -232,7 +232,7 @@ public java.lang.String getLanguageCode() {
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -821,7 +821,7 @@ public Builder setParentBytes(com.google.protobuf.ByteString value) {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -852,7 +852,7 @@ public java.lang.String getLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -883,7 +883,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -913,7 +913,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -939,7 +939,7 @@ public Builder clearLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListEntityTypesRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListEntityTypesRequestOrBuilder.java
index 37702c341..87585ea33 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListEntityTypesRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListEntityTypesRequestOrBuilder.java
@@ -65,7 +65,7 @@ public interface ListEntityTypesRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -86,7 +86,7 @@ public interface ListEntityTypesRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListFlowsRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListFlowsRequest.java
index f924cf00a..862db9f57 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListFlowsRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListFlowsRequest.java
@@ -267,7 +267,7 @@ public com.google.protobuf.ByteString getPageTokenBytes() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -298,7 +298,7 @@ public java.lang.String getLanguageCode() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -978,7 +978,7 @@ public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1008,7 +1008,7 @@ public java.lang.String getLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1038,7 +1038,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1067,7 +1067,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1092,7 +1092,7 @@ public Builder clearLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListFlowsRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListFlowsRequestOrBuilder.java
index f84d95e1d..ad7311164 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListFlowsRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListFlowsRequestOrBuilder.java
@@ -103,7 +103,7 @@ public interface ListFlowsRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -123,7 +123,7 @@ public interface ListFlowsRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListIntentsRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListIntentsRequest.java
index 3786fb3b1..8dec15353 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListIntentsRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListIntentsRequest.java
@@ -206,7 +206,7 @@ public com.google.protobuf.ByteString getParentBytes() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -236,7 +236,7 @@ public java.lang.String getLanguageCode() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -875,7 +875,7 @@ public Builder setParentBytes(com.google.protobuf.ByteString value) {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -904,7 +904,7 @@ public java.lang.String getLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -933,7 +933,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -961,7 +961,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -985,7 +985,7 @@ public Builder clearLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListIntentsRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListIntentsRequestOrBuilder.java
index 05a08f3f1..ef69a342f 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListIntentsRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListIntentsRequestOrBuilder.java
@@ -63,7 +63,7 @@ public interface ListIntentsRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -82,7 +82,7 @@ public interface ListIntentsRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListPagesRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListPagesRequest.java
index 942299233..ea50077a2 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListPagesRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListPagesRequest.java
@@ -205,7 +205,7 @@ public com.google.protobuf.ByteString getParentBytes() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -240,7 +240,7 @@ public java.lang.String getLanguageCode() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -836,7 +836,7 @@ public Builder setParentBytes(com.google.protobuf.ByteString value) {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -870,7 +870,7 @@ public java.lang.String getLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -904,7 +904,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -937,7 +937,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -966,7 +966,7 @@ public Builder clearLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListPagesRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListPagesRequestOrBuilder.java
index 6f60f3c00..a67f076dc 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListPagesRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListPagesRequestOrBuilder.java
@@ -70,7 +70,7 @@ public interface ListPagesRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -94,7 +94,7 @@ public interface ListPagesRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListTransitionRouteGroupsRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListTransitionRouteGroupsRequest.java
index ec891fca9..d6cb945dc 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListTransitionRouteGroupsRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListTransitionRouteGroupsRequest.java
@@ -269,7 +269,7 @@ public com.google.protobuf.ByteString getPageTokenBytes() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -299,7 +299,7 @@ public java.lang.String getLanguageCode() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -992,7 +992,7 @@ public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1021,7 +1021,7 @@ public java.lang.String getLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1050,7 +1050,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1078,7 +1078,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1102,7 +1102,7 @@ public Builder clearLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListTransitionRouteGroupsRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListTransitionRouteGroupsRequestOrBuilder.java
index 02da70956..60c1abaee 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListTransitionRouteGroupsRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/ListTransitionRouteGroupsRequestOrBuilder.java
@@ -104,7 +104,7 @@ public interface ListTransitionRouteGroupsRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -123,7 +123,7 @@ public interface ListTransitionRouteGroupsRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryInput.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryInput.java
index 3d9eac87d..e37027b53 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryInput.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryInput.java
@@ -513,9 +513,9 @@ public com.google.cloud.dialogflow.cx.v3.DtmfInputOrBuilder getDtmfOrBuilder() {
    *
    * <pre>
    * Required. The language of the input. See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-   * list of the currently supported language codes. Note that queries in the
-   * same session do not necessarily need to specify the same language.
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+   * for a list of the currently supported language codes. Note that queries in
+   * the same session do not necessarily need to specify the same language.
    * </pre>
    *
    * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -539,9 +539,9 @@ public java.lang.String getLanguageCode() {
    *
    * <pre>
    * Required. The language of the input. See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-   * list of the currently supported language codes. Note that queries in the
-   * same session do not necessarily need to specify the same language.
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+   * for a list of the currently supported language codes. Note that queries in
+   * the same session do not necessarily need to specify the same language.
    * </pre>
    *
    * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -2095,9 +2095,9 @@ public com.google.cloud.dialogflow.cx.v3.DtmfInputOrBuilder getDtmfOrBuilder() {
      *
      * <pre>
      * Required. The language of the input. See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-     * list of the currently supported language codes. Note that queries in the
-     * same session do not necessarily need to specify the same language.
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+     * for a list of the currently supported language codes. Note that queries in
+     * the same session do not necessarily need to specify the same language.
      * </pre>
      *
      * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -2120,9 +2120,9 @@ public java.lang.String getLanguageCode() {
      *
      * <pre>
      * Required. The language of the input. See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-     * list of the currently supported language codes. Note that queries in the
-     * same session do not necessarily need to specify the same language.
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+     * for a list of the currently supported language codes. Note that queries in
+     * the same session do not necessarily need to specify the same language.
      * </pre>
      *
      * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -2145,9 +2145,9 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      *
      * <pre>
      * Required. The language of the input. See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-     * list of the currently supported language codes. Note that queries in the
-     * same session do not necessarily need to specify the same language.
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+     * for a list of the currently supported language codes. Note that queries in
+     * the same session do not necessarily need to specify the same language.
      * </pre>
      *
      * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -2169,9 +2169,9 @@ public Builder setLanguageCode(java.lang.String value) {
      *
      * <pre>
      * Required. The language of the input. See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-     * list of the currently supported language codes. Note that queries in the
-     * same session do not necessarily need to specify the same language.
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+     * for a list of the currently supported language codes. Note that queries in
+     * the same session do not necessarily need to specify the same language.
      * </pre>
      *
      * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -2189,9 +2189,9 @@ public Builder clearLanguageCode() {
      *
      * <pre>
      * Required. The language of the input. See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-     * list of the currently supported language codes. Note that queries in the
-     * same session do not necessarily need to specify the same language.
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+     * for a list of the currently supported language codes. Note that queries in
+     * the same session do not necessarily need to specify the same language.
      * </pre>
      *
      * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryInputOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryInputOrBuilder.java
index eb1d16f62..2382f54ca 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryInputOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryInputOrBuilder.java
@@ -203,9 +203,9 @@ public interface QueryInputOrBuilder
    *
    * <pre>
    * Required. The language of the input. See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-   * list of the currently supported language codes. Note that queries in the
-   * same session do not necessarily need to specify the same language.
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+   * for a list of the currently supported language codes. Note that queries in
+   * the same session do not necessarily need to specify the same language.
    * </pre>
    *
    * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -218,9 +218,9 @@ public interface QueryInputOrBuilder
    *
    * <pre>
    * Required. The language of the input. See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-   * list of the currently supported language codes. Note that queries in the
-   * same session do not necessarily need to specify the same language.
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+   * for a list of the currently supported language codes. Note that queries in
+   * the same session do not necessarily need to specify the same language.
    * </pre>
    *
    * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryResult.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryResult.java
index 509992e7b..b31705ccc 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryResult.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryResult.java
@@ -578,7 +578,7 @@ public com.google.protobuf.ByteString getTriggerEventBytes() {
    * <pre>
    * The language that was triggered during intent detection.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * </pre>
    *
@@ -604,7 +604,7 @@ public java.lang.String getLanguageCode() {
    * <pre>
    * The language that was triggered during intent detection.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * </pre>
    *
@@ -2528,7 +2528,7 @@ public Builder setTriggerEventBytes(com.google.protobuf.ByteString value) {
      * <pre>
      * The language that was triggered during intent detection.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * </pre>
      *
@@ -2553,7 +2553,7 @@ public java.lang.String getLanguageCode() {
      * <pre>
      * The language that was triggered during intent detection.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * </pre>
      *
@@ -2578,7 +2578,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * <pre>
      * The language that was triggered during intent detection.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * </pre>
      *
@@ -2602,7 +2602,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * <pre>
      * The language that was triggered during intent detection.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * </pre>
      *
@@ -2622,7 +2622,7 @@ public Builder clearLanguageCode() {
      * <pre>
      * The language that was triggered during intent detection.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * </pre>
      *
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryResultOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryResultOrBuilder.java
index 582d50a36..b66e1b2f9 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryResultOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/QueryResultOrBuilder.java
@@ -137,7 +137,7 @@ public interface QueryResultOrBuilder
    * <pre>
    * The language that was triggered during intent detection.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * </pre>
    *
@@ -152,7 +152,7 @@ public interface QueryResultOrBuilder
    * <pre>
    * The language that was triggered during intent detection.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * </pre>
    *
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateEntityTypeRequest.java
index 27e85dd8c..2f01bac5f 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateEntityTypeRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateEntityTypeRequest.java
@@ -208,7 +208,7 @@ public com.google.cloud.dialogflow.cx.v3.EntityTypeOrBuilder getEntityTypeOrBuil
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -239,7 +239,7 @@ public java.lang.String getLanguageCode() {
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -897,7 +897,7 @@ public com.google.cloud.dialogflow.cx.v3.EntityTypeOrBuilder getEntityTypeOrBuil
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -927,7 +927,7 @@ public java.lang.String getLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -957,7 +957,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -986,7 +986,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1011,7 +1011,7 @@ public Builder clearLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateEntityTypeRequestOrBuilder.java
index 856d622c7..e3923854b 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateEntityTypeRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateEntityTypeRequestOrBuilder.java
@@ -74,7 +74,7 @@ public interface UpdateEntityTypeRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -94,7 +94,7 @@ public interface UpdateEntityTypeRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateFlowRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateFlowRequest.java
index adee41ec9..514d32a02 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateFlowRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateFlowRequest.java
@@ -254,7 +254,7 @@ public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -284,7 +284,7 @@ public java.lang.String getLanguageCode() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -1081,7 +1081,7 @@ public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1110,7 +1110,7 @@ public java.lang.String getLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1139,7 +1139,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1167,7 +1167,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1191,7 +1191,7 @@ public Builder clearLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateFlowRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateFlowRequestOrBuilder.java
index fd648a20c..c3d693b66 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateFlowRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateFlowRequestOrBuilder.java
@@ -111,7 +111,7 @@ public interface UpdateFlowRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -130,7 +130,7 @@ public interface UpdateFlowRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateIntentRequest.java
index 1648debce..065bb3741 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateIntentRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateIntentRequest.java
@@ -206,7 +206,7 @@ public com.google.cloud.dialogflow.cx.v3.IntentOrBuilder getIntentOrBuilder() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -235,7 +235,7 @@ public java.lang.String getLanguageCode() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -893,7 +893,7 @@ public com.google.cloud.dialogflow.cx.v3.IntentOrBuilder getIntentOrBuilder() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -921,7 +921,7 @@ public java.lang.String getLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -949,7 +949,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -976,7 +976,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -999,7 +999,7 @@ public Builder clearLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateIntentRequestOrBuilder.java
index 7c7993a7b..0ede17f7c 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateIntentRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateIntentRequestOrBuilder.java
@@ -72,7 +72,7 @@ public interface UpdateIntentRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -90,7 +90,7 @@ public interface UpdateIntentRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdatePageRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdatePageRequest.java
index c6fbf7b53..3a9a32455 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdatePageRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdatePageRequest.java
@@ -206,7 +206,7 @@ public com.google.cloud.dialogflow.cx.v3.PageOrBuilder getPageOrBuilder() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -240,7 +240,7 @@ public java.lang.String getLanguageCode() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -889,7 +889,7 @@ public com.google.cloud.dialogflow.cx.v3.PageOrBuilder getPageOrBuilder() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -922,7 +922,7 @@ public java.lang.String getLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -955,7 +955,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -987,7 +987,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1015,7 +1015,7 @@ public Builder clearLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdatePageRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdatePageRequestOrBuilder.java
index 4c618f329..dbcdf63c5 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdatePageRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdatePageRequestOrBuilder.java
@@ -74,7 +74,7 @@ public interface UpdatePageRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -97,7 +97,7 @@ public interface UpdatePageRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateTransitionRouteGroupRequest.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateTransitionRouteGroupRequest.java
index 9d3fd5525..183289782 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateTransitionRouteGroupRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateTransitionRouteGroupRequest.java
@@ -256,7 +256,7 @@ public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -286,7 +286,7 @@ public java.lang.String getLanguageCode() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -1094,7 +1094,7 @@ public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1123,7 +1123,7 @@ public java.lang.String getLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1152,7 +1152,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1180,7 +1180,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1204,7 +1204,7 @@ public Builder clearLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateTransitionRouteGroupRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateTransitionRouteGroupRequestOrBuilder.java
index 04c69d155..4838bfe37 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateTransitionRouteGroupRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/java/com/google/cloud/dialogflow/cx/v3/UpdateTransitionRouteGroupRequestOrBuilder.java
@@ -109,7 +109,7 @@ public interface UpdateTransitionRouteGroupRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -128,7 +128,7 @@ public interface UpdateTransitionRouteGroupRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/agent.proto b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/agent.proto
index 29ad329ae..13368d0a9 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/agent.proto
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/agent.proto
@@ -160,7 +160,7 @@ message Agent {
 
   // Immutable. The default language of the agent as a language tag.
   // See [Language
-  // Support](https://cloud.google.com/dialogflow/docs/reference/language)
+  // Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // for a list of the currently supported language codes.
   // This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3.Agents.UpdateAgent] method.
   string default_language_code = 3 [(google.api.field_behavior) = IMMUTABLE];
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/audio_config.proto b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/audio_config.proto
index 95b001d59..dc9c911b9 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/audio_config.proto
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/audio_config.proto
@@ -29,6 +29,31 @@ option java_outer_classname = "AudioConfigProto";
 option java_package = "com.google.cloud.dialogflow.cx.v3";
 option objc_class_prefix = "DF";
 
+// Information for a word recognized by the speech recognizer.
+message SpeechWordInfo {
+  // The word this info is for.
+  string word = 3;
+
+  // Time offset relative to the beginning of the audio that corresponds to the
+  // start of the spoken word. This is an experimental feature and the accuracy
+  // of the time offset can vary.
+  google.protobuf.Duration start_offset = 1;
+
+  // Time offset relative to the beginning of the audio that corresponds to the
+  // end of the spoken word. This is an experimental feature and the accuracy of
+  // the time offset can vary.
+  google.protobuf.Duration end_offset = 2;
+
+  // The Speech confidence between 0.0 and 1.0 for this word. A higher number
+  // indicates an estimated greater likelihood that the recognized word is
+  // correct. The default of 0.0 is a sentinel value indicating that confidence
+  // was not set.
+  //
+  // This field is not guaranteed to be fully stable over time for the same
+  // audio input. Users should also not rely on it to always be provided.
+  float confidence = 4;
+}
+
 // Audio encoding of the audio content sent in the conversational query request.
 // Refer to the
 // [Cloud Speech API
@@ -78,31 +103,6 @@ enum AudioEncoding {
   AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE = 7;
 }
 
-// Information for a word recognized by the speech recognizer.
-message SpeechWordInfo {
-  // The word this info is for.
-  string word = 3;
-
-  // Time offset relative to the beginning of the audio that corresponds to the
-  // start of the spoken word. This is an experimental feature and the accuracy
-  // of the time offset can vary.
-  google.protobuf.Duration start_offset = 1;
-
-  // Time offset relative to the beginning of the audio that corresponds to the
-  // end of the spoken word. This is an experimental feature and the accuracy of
-  // the time offset can vary.
-  google.protobuf.Duration end_offset = 2;
-
-  // The Speech confidence between 0.0 and 1.0 for this word. A higher number
-  // indicates an estimated greater likelihood that the recognized word is
-  // correct. The default of 0.0 is a sentinel value indicating that confidence
-  // was not set.
-  //
-  // This field is not guaranteed to be fully stable over time for the same
-  // audio input. Users should also not rely on it to always be provided.
-  float confidence = 4;
-}
-
 // Instructs the speech recognizer on how to process the audio content.
 message InputAudioConfig {
   // Required. Audio encoding of the audio content to process.
@@ -250,6 +250,22 @@ message SynthesizeSpeechConfig {
   VoiceSelectionParams voice = 4;
 }
 
+// Instructs the speech synthesizer how to generate the output audio content.
+message OutputAudioConfig {
+  // Required. Audio encoding of the synthesized audio content.
+  OutputAudioEncoding audio_encoding = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Optional. The synthesis sample rate (in hertz) for this audio. If not
+  // provided, then the synthesizer will use the default sample rate based on
+  // the audio encoding. If this is different from the voice's natural sample
+  // rate, then the synthesizer will honor this request by converting to the
+  // desired sample rate (which might result in worse audio quality).
+  int32 sample_rate_hertz = 2;
+
+  // Optional. Configuration of how speech should be synthesized.
+  SynthesizeSpeechConfig synthesize_speech_config = 3;
+}
+
 // Gender of the voice as described in
 // [SSML voice element](https://www.w3.org/TR/speech-synthesis11/#edef_voice).
 enum SsmlVoiceGender {
@@ -267,22 +283,6 @@ enum SsmlVoiceGender {
   SSML_VOICE_GENDER_NEUTRAL = 3;
 }
 
-// Instructs the speech synthesizer how to generate the output audio content.
-message OutputAudioConfig {
-  // Required. Audio encoding of the synthesized audio content.
-  OutputAudioEncoding audio_encoding = 1 [(google.api.field_behavior) = REQUIRED];
-
-  // Optional. The synthesis sample rate (in hertz) for this audio. If not
-  // provided, then the synthesizer will use the default sample rate based on
-  // the audio encoding. If this is different from the voice's natural sample
-  // rate, then the synthesizer will honor this request by converting to the
-  // desired sample rate (which might result in worse audio quality).
-  int32 sample_rate_hertz = 2;
-
-  // Optional. Configuration of how speech should be synthesized.
-  SynthesizeSpeechConfig synthesize_speech_config = 3;
-}
-
 // Audio encoding of the output audio format in Text-To-Speech.
 enum OutputAudioEncoding {
   // Not specified.
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/entity_type.proto b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/entity_type.proto
index 16fdbebae..715dcb875 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/entity_type.proto
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/entity_type.proto
@@ -231,7 +231,7 @@ message ListEntityTypesRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -276,7 +276,7 @@ message GetEntityTypeRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -304,7 +304,7 @@ message CreateEntityTypeRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -323,7 +323,7 @@ message UpdateEntityTypeRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/flow.proto b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/flow.proto
index 068eb7f83..7560e77a4 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/flow.proto
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/flow.proto
@@ -250,7 +250,7 @@ message CreateFlowRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -307,7 +307,7 @@ message ListFlowsRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 4;
@@ -344,7 +344,7 @@ message GetFlowRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -366,7 +366,7 @@ message UpdateFlowRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/intent.proto b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/intent.proto
index 3f2027160..1e2924ff8 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/intent.proto
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/intent.proto
@@ -236,7 +236,7 @@ message ListIntentsRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -282,7 +282,7 @@ message GetIntentRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -308,7 +308,7 @@ message CreateIntentRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -325,7 +325,7 @@ message UpdateIntentRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/page.proto b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/page.proto
index 4d5fc75a5..fadede1ae 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/page.proto
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/page.proto
@@ -386,7 +386,7 @@ message ListPagesRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -434,7 +434,7 @@ message GetPageRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -466,7 +466,7 @@ message CreatePageRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -488,7 +488,7 @@ message UpdatePageRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/session.proto b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/session.proto
index 425028506..a013a0f62 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/session.proto
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/session.proto
@@ -433,9 +433,9 @@ message QueryInput {
   }
 
   // Required. The language of the input. See [Language
-  // Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-  // list of the currently supported language codes. Note that queries in the
-  // same session do not necessarily need to specify the same language.
+  // Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+  // for a list of the currently supported language codes. Note that queries in
+  // the same session do not necessarily need to specify the same language.
   string language_code = 4 [(google.api.field_behavior) = REQUIRED];
 }
 
@@ -462,7 +462,7 @@ message QueryResult {
 
   // The language that was triggered during intent detection.
   // See [Language
-  // Support](https://cloud.google.com/dialogflow/docs/reference/language)
+  // Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // for a list of the currently supported language codes.
   string language_code = 2;
 
diff --git a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/transition_route_group.proto b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/transition_route_group.proto
index a2c73914e..1f5911955 100644
--- a/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/transition_route_group.proto
+++ b/proto-google-cloud-dialogflow-cx-v3/src/main/proto/google/cloud/dialogflow/cx/v3/transition_route_group.proto
@@ -130,7 +130,7 @@ message ListTransitionRouteGroupsRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 4;
@@ -167,7 +167,7 @@ message GetTransitionRouteGroupRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -194,7 +194,7 @@ message CreateTransitionRouteGroupRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -214,7 +214,7 @@ message UpdateTransitionRouteGroupRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Agent.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Agent.java
index 69991c2f1..eb5f43986 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Agent.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/Agent.java
@@ -312,7 +312,7 @@ public com.google.protobuf.ByteString getDisplayNameBytes() {
    * <pre>
    * Immutable. The default language of the agent as a language tag.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
    * </pre>
@@ -339,7 +339,7 @@ public java.lang.String getDefaultLanguageCode() {
    * <pre>
    * Immutable. The default language of the agent as a language tag.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
    * </pre>
@@ -1450,7 +1450,7 @@ public Builder setDisplayNameBytes(com.google.protobuf.ByteString value) {
      * <pre>
      * Immutable. The default language of the agent as a language tag.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
      * </pre>
@@ -1476,7 +1476,7 @@ public java.lang.String getDefaultLanguageCode() {
      * <pre>
      * Immutable. The default language of the agent as a language tag.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
      * </pre>
@@ -1502,7 +1502,7 @@ public com.google.protobuf.ByteString getDefaultLanguageCodeBytes() {
      * <pre>
      * Immutable. The default language of the agent as a language tag.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
      * </pre>
@@ -1527,7 +1527,7 @@ public Builder setDefaultLanguageCode(java.lang.String value) {
      * <pre>
      * Immutable. The default language of the agent as a language tag.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
      * </pre>
@@ -1548,7 +1548,7 @@ public Builder clearDefaultLanguageCode() {
      * <pre>
      * Immutable. The default language of the agent as a language tag.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentOrBuilder.java
index 400479b8a..8f2edb5e6 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/AgentOrBuilder.java
@@ -85,7 +85,7 @@ public interface AgentOrBuilder
    * <pre>
    * Immutable. The default language of the agent as a language tag.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
    * </pre>
@@ -101,7 +101,7 @@ public interface AgentOrBuilder
    * <pre>
    * Immutable. The default language of the agent as a language tag.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequest.java
index ef03e8132..dd0a64487 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequest.java
@@ -257,7 +257,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder getEntityTypeO
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -288,7 +288,7 @@ public java.lang.String getLanguageCode() {
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -1012,7 +1012,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder getEntityTypeO
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1042,7 +1042,7 @@ public java.lang.String getLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1072,7 +1072,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1101,7 +1101,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1126,7 +1126,7 @@ public Builder clearLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequestOrBuilder.java
index 807a308d1..90bc2ac74 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateEntityTypeRequestOrBuilder.java
@@ -105,7 +105,7 @@ public interface CreateEntityTypeRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -125,7 +125,7 @@ public interface CreateEntityTypeRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequest.java
index ca560291e..507e1f90e 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequest.java
@@ -253,7 +253,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder getFlowOrBuilder() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -283,7 +283,7 @@ public java.lang.String getLanguageCode() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -1002,7 +1002,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.FlowOrBuilder getFlowOrBuilder() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1031,7 +1031,7 @@ public java.lang.String getLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1060,7 +1060,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1088,7 +1088,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1112,7 +1112,7 @@ public Builder clearLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequestOrBuilder.java
index 46a2b3017..c41eaaa5e 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateFlowRequestOrBuilder.java
@@ -104,7 +104,7 @@ public interface CreateFlowRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -123,7 +123,7 @@ public interface CreateFlowRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequest.java
index bd703e6c9..f04850eca 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequest.java
@@ -254,7 +254,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -283,7 +283,7 @@ public java.lang.String getLanguageCode() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -1002,7 +1002,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1030,7 +1030,7 @@ public java.lang.String getLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1058,7 +1058,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1085,7 +1085,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1108,7 +1108,7 @@ public Builder clearLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequestOrBuilder.java
index aafaf2995..e3936372a 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateIntentRequestOrBuilder.java
@@ -103,7 +103,7 @@ public interface CreateIntentRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -121,7 +121,7 @@ public interface CreateIntentRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequest.java
index 4fd42ca6a..ed24c2cc6 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequest.java
@@ -259,7 +259,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getPageOrBuilder() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -293,7 +293,7 @@ public java.lang.String getLanguageCode() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -1021,7 +1021,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getPageOrBuilder() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1054,7 +1054,7 @@ public java.lang.String getLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1087,7 +1087,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1119,7 +1119,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1147,7 +1147,7 @@ public Builder clearLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequestOrBuilder.java
index fb4ec2381..496665e81 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreatePageRequestOrBuilder.java
@@ -110,7 +110,7 @@ public interface CreatePageRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -133,7 +133,7 @@ public interface CreatePageRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequest.java
index 289f09e39..9903da640 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequest.java
@@ -260,7 +260,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.TransitionRouteGroup getTransition
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -290,7 +290,7 @@ public java.lang.String getLanguageCode() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -1033,7 +1033,7 @@ public Builder clearTransitionRouteGroup() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1062,7 +1062,7 @@ public java.lang.String getLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1091,7 +1091,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1119,7 +1119,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1143,7 +1143,7 @@ public Builder clearLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequestOrBuilder.java
index e9fa12e86..1e46a2827 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/CreateTransitionRouteGroupRequestOrBuilder.java
@@ -107,7 +107,7 @@ public interface CreateTransitionRouteGroupRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -126,7 +126,7 @@ public interface CreateTransitionRouteGroupRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequest.java
index cfe896b79..6a2ce91f3 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequest.java
@@ -189,7 +189,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -221,7 +221,7 @@ public java.lang.String getLanguageCode() {
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -716,7 +716,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -747,7 +747,7 @@ public java.lang.String getLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -778,7 +778,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -808,7 +808,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -834,7 +834,7 @@ public Builder clearLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequestOrBuilder.java
index b5a372ff0..9d7dd36ed 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetEntityTypeRequestOrBuilder.java
@@ -67,7 +67,7 @@ public interface GetEntityTypeRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -88,7 +88,7 @@ public interface GetEntityTypeRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequest.java
index c2595d2ff..adf438fc2 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequest.java
@@ -188,7 +188,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -219,7 +219,7 @@ public java.lang.String getLanguageCode() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -713,7 +713,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -743,7 +743,7 @@ public java.lang.String getLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -773,7 +773,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -802,7 +802,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -827,7 +827,7 @@ public Builder clearLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequestOrBuilder.java
index be6669976..9188d7212 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetFlowRequestOrBuilder.java
@@ -66,7 +66,7 @@ public interface GetFlowRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -86,7 +86,7 @@ public interface GetFlowRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequest.java
index ab6929d58..59f9d721a 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequest.java
@@ -187,7 +187,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -217,7 +217,7 @@ public java.lang.String getLanguageCode() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -710,7 +710,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -739,7 +739,7 @@ public java.lang.String getLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -768,7 +768,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -796,7 +796,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -820,7 +820,7 @@ public Builder clearLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequestOrBuilder.java
index e962020ff..423d5a1be 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetIntentRequestOrBuilder.java
@@ -65,7 +65,7 @@ public interface GetIntentRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -84,7 +84,7 @@ public interface GetIntentRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequest.java
index c061e15f8..068912d65 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequest.java
@@ -192,7 +192,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -227,7 +227,7 @@ public java.lang.String getLanguageCode() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -725,7 +725,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -759,7 +759,7 @@ public java.lang.String getLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -793,7 +793,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -826,7 +826,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -855,7 +855,7 @@ public Builder clearLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequestOrBuilder.java
index c2db8cf64..f13804165 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetPageRequestOrBuilder.java
@@ -70,7 +70,7 @@ public interface GetPageRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -94,7 +94,7 @@ public interface GetPageRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequest.java
index 9c5ca089c..1a3d3f404 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequest.java
@@ -188,7 +188,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -218,7 +218,7 @@ public java.lang.String getLanguageCode() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -719,7 +719,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -748,7 +748,7 @@ public java.lang.String getLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -777,7 +777,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -805,7 +805,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -829,7 +829,7 @@ public Builder clearLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequestOrBuilder.java
index ac18f7ec6..4f19718d0 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/GetTransitionRouteGroupRequestOrBuilder.java
@@ -65,7 +65,7 @@ public interface GetTransitionRouteGroupRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -84,7 +84,7 @@ public interface GetTransitionRouteGroupRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequest.java
index 6e975123a..80db3103f 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequest.java
@@ -200,7 +200,7 @@ public com.google.protobuf.ByteString getParentBytes() {
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -232,7 +232,7 @@ public java.lang.String getLanguageCode() {
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -824,7 +824,7 @@ public Builder setParentBytes(com.google.protobuf.ByteString value) {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -855,7 +855,7 @@ public java.lang.String getLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -886,7 +886,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -916,7 +916,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -942,7 +942,7 @@ public Builder clearLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequestOrBuilder.java
index 2870ca6dc..2b7293a66 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListEntityTypesRequestOrBuilder.java
@@ -65,7 +65,7 @@ public interface ListEntityTypesRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -86,7 +86,7 @@ public interface ListEntityTypesRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequest.java
index 4b88dfbdb..f7ceb1f28 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequest.java
@@ -267,7 +267,7 @@ public com.google.protobuf.ByteString getPageTokenBytes() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -298,7 +298,7 @@ public java.lang.String getLanguageCode() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -979,7 +979,7 @@ public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1009,7 +1009,7 @@ public java.lang.String getLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1039,7 +1039,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1068,7 +1068,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1093,7 +1093,7 @@ public Builder clearLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequestOrBuilder.java
index 1afea2a4c..8b466a093 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListFlowsRequestOrBuilder.java
@@ -103,7 +103,7 @@ public interface ListFlowsRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -123,7 +123,7 @@ public interface ListFlowsRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequest.java
index a13bed6f4..b58d15421 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequest.java
@@ -206,7 +206,7 @@ public com.google.protobuf.ByteString getParentBytes() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -236,7 +236,7 @@ public java.lang.String getLanguageCode() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -876,7 +876,7 @@ public Builder setParentBytes(com.google.protobuf.ByteString value) {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -905,7 +905,7 @@ public java.lang.String getLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -934,7 +934,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -962,7 +962,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -986,7 +986,7 @@ public Builder clearLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequestOrBuilder.java
index 9dcf9f538..8b9e673a9 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListIntentsRequestOrBuilder.java
@@ -63,7 +63,7 @@ public interface ListIntentsRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -82,7 +82,7 @@ public interface ListIntentsRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequest.java
index 699bbd7d5..fa191b47a 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequest.java
@@ -205,7 +205,7 @@ public com.google.protobuf.ByteString getParentBytes() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -240,7 +240,7 @@ public java.lang.String getLanguageCode() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -837,7 +837,7 @@ public Builder setParentBytes(com.google.protobuf.ByteString value) {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -871,7 +871,7 @@ public java.lang.String getLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -905,7 +905,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -938,7 +938,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -967,7 +967,7 @@ public Builder clearLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequestOrBuilder.java
index 40fe02f4b..c15da5a58 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListPagesRequestOrBuilder.java
@@ -70,7 +70,7 @@ public interface ListPagesRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -94,7 +94,7 @@ public interface ListPagesRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequest.java
index 79083d719..edfa6534b 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequest.java
@@ -269,7 +269,7 @@ public com.google.protobuf.ByteString getPageTokenBytes() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -299,7 +299,7 @@ public java.lang.String getLanguageCode() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -995,7 +995,7 @@ public Builder setPageTokenBytes(com.google.protobuf.ByteString value) {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1024,7 +1024,7 @@ public java.lang.String getLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1053,7 +1053,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1081,7 +1081,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1105,7 +1105,7 @@ public Builder clearLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequestOrBuilder.java
index 3f6775fd6..fc429287b 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/ListTransitionRouteGroupsRequestOrBuilder.java
@@ -104,7 +104,7 @@ public interface ListTransitionRouteGroupsRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -123,7 +123,7 @@ public interface ListTransitionRouteGroupsRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInput.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInput.java
index 7f858c9c9..e6f1cfe44 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInput.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInput.java
@@ -521,9 +521,9 @@ public com.google.cloud.dialogflow.cx.v3beta1.DtmfInputOrBuilder getDtmfOrBuilde
    *
    * <pre>
    * Required. The language of the input. See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-   * list of the currently supported language codes. Note that queries in the
-   * same session do not necessarily need to specify the same language.
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+   * for a list of the currently supported language codes. Note that queries in
+   * the same session do not necessarily need to specify the same language.
    * </pre>
    *
    * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -547,9 +547,9 @@ public java.lang.String getLanguageCode() {
    *
    * <pre>
    * Required. The language of the input. See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-   * list of the currently supported language codes. Note that queries in the
-   * same session do not necessarily need to specify the same language.
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+   * for a list of the currently supported language codes. Note that queries in
+   * the same session do not necessarily need to specify the same language.
    * </pre>
    *
    * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -2109,9 +2109,9 @@ public com.google.cloud.dialogflow.cx.v3beta1.DtmfInputOrBuilder getDtmfOrBuilde
      *
      * <pre>
      * Required. The language of the input. See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-     * list of the currently supported language codes. Note that queries in the
-     * same session do not necessarily need to specify the same language.
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+     * for a list of the currently supported language codes. Note that queries in
+     * the same session do not necessarily need to specify the same language.
      * </pre>
      *
      * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -2134,9 +2134,9 @@ public java.lang.String getLanguageCode() {
      *
      * <pre>
      * Required. The language of the input. See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-     * list of the currently supported language codes. Note that queries in the
-     * same session do not necessarily need to specify the same language.
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+     * for a list of the currently supported language codes. Note that queries in
+     * the same session do not necessarily need to specify the same language.
      * </pre>
      *
      * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -2159,9 +2159,9 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      *
      * <pre>
      * Required. The language of the input. See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-     * list of the currently supported language codes. Note that queries in the
-     * same session do not necessarily need to specify the same language.
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+     * for a list of the currently supported language codes. Note that queries in
+     * the same session do not necessarily need to specify the same language.
      * </pre>
      *
      * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -2183,9 +2183,9 @@ public Builder setLanguageCode(java.lang.String value) {
      *
      * <pre>
      * Required. The language of the input. See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-     * list of the currently supported language codes. Note that queries in the
-     * same session do not necessarily need to specify the same language.
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+     * for a list of the currently supported language codes. Note that queries in
+     * the same session do not necessarily need to specify the same language.
      * </pre>
      *
      * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -2203,9 +2203,9 @@ public Builder clearLanguageCode() {
      *
      * <pre>
      * Required. The language of the input. See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-     * list of the currently supported language codes. Note that queries in the
-     * same session do not necessarily need to specify the same language.
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+     * for a list of the currently supported language codes. Note that queries in
+     * the same session do not necessarily need to specify the same language.
      * </pre>
      *
      * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInputOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInputOrBuilder.java
index 2197b5a35..c19f57a93 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInputOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryInputOrBuilder.java
@@ -203,9 +203,9 @@ public interface QueryInputOrBuilder
    *
    * <pre>
    * Required. The language of the input. See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-   * list of the currently supported language codes. Note that queries in the
-   * same session do not necessarily need to specify the same language.
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+   * for a list of the currently supported language codes. Note that queries in
+   * the same session do not necessarily need to specify the same language.
    * </pre>
    *
    * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
@@ -218,9 +218,9 @@ public interface QueryInputOrBuilder
    *
    * <pre>
    * Required. The language of the input. See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-   * list of the currently supported language codes. Note that queries in the
-   * same session do not necessarily need to specify the same language.
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+   * for a list of the currently supported language codes. Note that queries in
+   * the same session do not necessarily need to specify the same language.
    * </pre>
    *
    * <code>string language_code = 4 [(.google.api.field_behavior) = REQUIRED];</code>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResult.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResult.java
index e53512152..c7069f446 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResult.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResult.java
@@ -580,7 +580,7 @@ public com.google.protobuf.ByteString getTriggerEventBytes() {
    * <pre>
    * The language that was triggered during intent detection.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * </pre>
    *
@@ -606,7 +606,7 @@ public java.lang.String getLanguageCode() {
    * <pre>
    * The language that was triggered during intent detection.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * </pre>
    *
@@ -2543,7 +2543,7 @@ public Builder setTriggerEventBytes(com.google.protobuf.ByteString value) {
      * <pre>
      * The language that was triggered during intent detection.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * </pre>
      *
@@ -2568,7 +2568,7 @@ public java.lang.String getLanguageCode() {
      * <pre>
      * The language that was triggered during intent detection.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * </pre>
      *
@@ -2593,7 +2593,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * <pre>
      * The language that was triggered during intent detection.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * </pre>
      *
@@ -2617,7 +2617,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * <pre>
      * The language that was triggered during intent detection.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * </pre>
      *
@@ -2637,7 +2637,7 @@ public Builder clearLanguageCode() {
      * <pre>
      * The language that was triggered during intent detection.
      * See [Language
-     * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+     * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * for a list of the currently supported language codes.
      * </pre>
      *
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResultOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResultOrBuilder.java
index a9da1e52f..65e18f952 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResultOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/QueryResultOrBuilder.java
@@ -137,7 +137,7 @@ public interface QueryResultOrBuilder
    * <pre>
    * The language that was triggered during intent detection.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * </pre>
    *
@@ -152,7 +152,7 @@ public interface QueryResultOrBuilder
    * <pre>
    * The language that was triggered during intent detection.
    * See [Language
-   * Support](https://cloud.google.com/dialogflow/docs/reference/language)
+   * Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * for a list of the currently supported language codes.
    * </pre>
    *
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequest.java
index ff393d694..ae2d6105a 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequest.java
@@ -209,7 +209,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder getEntityTypeO
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -240,7 +240,7 @@ public java.lang.String getLanguageCode() {
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -901,7 +901,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.EntityTypeOrBuilder getEntityTypeO
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -931,7 +931,7 @@ public java.lang.String getLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -961,7 +961,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -990,7 +990,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1015,7 +1015,7 @@ public Builder clearLanguageCode() {
      * *   `EntityType.excluded_phrases.value`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequestOrBuilder.java
index 6a43b0cfa..345aaaa76 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateEntityTypeRequestOrBuilder.java
@@ -74,7 +74,7 @@ public interface UpdateEntityTypeRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -94,7 +94,7 @@ public interface UpdateEntityTypeRequestOrBuilder
    * *   `EntityType.excluded_phrases.value`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequest.java
index e410f4d33..922d7d491 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequest.java
@@ -257,7 +257,7 @@ public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -287,7 +287,7 @@ public java.lang.String getLanguageCode() {
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -1098,7 +1098,7 @@ public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1127,7 +1127,7 @@ public java.lang.String getLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1156,7 +1156,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1184,7 +1184,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1208,7 +1208,7 @@ public Builder clearLanguageCode() {
      * *  `Flow.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequestOrBuilder.java
index 7b31b182d..ba139650e 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateFlowRequestOrBuilder.java
@@ -114,7 +114,7 @@ public interface UpdateFlowRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -133,7 +133,7 @@ public interface UpdateFlowRequestOrBuilder
    * *  `Flow.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequest.java
index a284be2ce..882c54da6 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequest.java
@@ -206,7 +206,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -235,7 +235,7 @@ public java.lang.String getLanguageCode() {
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -894,7 +894,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.IntentOrBuilder getIntentOrBuilder
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -922,7 +922,7 @@ public java.lang.String getLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -950,7 +950,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -977,7 +977,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1000,7 +1000,7 @@ public Builder clearLanguageCode() {
      * *   `Intent.training_phrases.parts.text`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequestOrBuilder.java
index aaeb01a63..3a2532a48 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateIntentRequestOrBuilder.java
@@ -72,7 +72,7 @@ public interface UpdateIntentRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -90,7 +90,7 @@ public interface UpdateIntentRequestOrBuilder
    * *   `Intent.training_phrases.parts.text`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequest.java
index 7ba2df906..bfde07cfd 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequest.java
@@ -209,7 +209,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getPageOrBuilder() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -243,7 +243,7 @@ public java.lang.String getLanguageCode() {
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -906,7 +906,7 @@ public com.google.cloud.dialogflow.cx.v3beta1.PageOrBuilder getPageOrBuilder() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -939,7 +939,7 @@ public java.lang.String getLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -972,7 +972,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1004,7 +1004,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1032,7 +1032,7 @@ public Builder clearLanguageCode() {
      * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequestOrBuilder.java
index 8dfc21231..862478fef 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdatePageRequestOrBuilder.java
@@ -77,7 +77,7 @@ public interface UpdatePageRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -100,7 +100,7 @@ public interface UpdatePageRequestOrBuilder
    * `Page.transition_route_groups.transition_routes.trigger_fulfillment.messages`
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequest.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequest.java
index 79371a1e7..9dae3e8c1 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequest.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequest.java
@@ -256,7 +256,7 @@ public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -286,7 +286,7 @@ public java.lang.String getLanguageCode() {
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -1098,7 +1098,7 @@ public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1127,7 +1127,7 @@ public java.lang.String getLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1156,7 +1156,7 @@ public com.google.protobuf.ByteString getLanguageCodeBytes() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1184,7 +1184,7 @@ public Builder setLanguageCode(java.lang.String value) {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
@@ -1208,7 +1208,7 @@ public Builder clearLanguageCode() {
      * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
      * If not specified, the agent's default language is used.
      * [Many
-     * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+     * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
      * are supported.
      * Note: languages must be enabled in the agent before they can be used.
      * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequestOrBuilder.java b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequestOrBuilder.java
index aadba9b09..e0b65dd4e 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequestOrBuilder.java
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/java/com/google/cloud/dialogflow/cx/v3beta1/UpdateTransitionRouteGroupRequestOrBuilder.java
@@ -109,7 +109,7 @@ public interface UpdateTransitionRouteGroupRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
@@ -128,7 +128,7 @@ public interface UpdateTransitionRouteGroupRequestOrBuilder
    * [TransitionRoute][google.cloud.dialogflow.cx.v3beta1.TransitionRoute] is language dependent.
    * If not specified, the agent's default language is used.
    * [Many
-   * languages](https://cloud.google.com/dialogflow/docs/reference/language)
+   * languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
    * are supported.
    * Note: languages must be enabled in the agent before they can be used.
    * </pre>
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/agent.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/agent.proto
index d75c9c678..543dfff50 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/agent.proto
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/agent.proto
@@ -161,7 +161,7 @@ message Agent {
 
   // Immutable. The default language of the agent as a language tag.
   // See [Language
-  // Support](https://cloud.google.com/dialogflow/docs/reference/language)
+  // Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // for a list of the currently supported language codes.
   // This field cannot be set by the [Agents.UpdateAgent][google.cloud.dialogflow.cx.v3beta1.Agents.UpdateAgent] method.
   string default_language_code = 3 [(google.api.field_behavior) = IMMUTABLE];
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/audio_config.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/audio_config.proto
index ef87031e7..38f05bd52 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/audio_config.proto
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/audio_config.proto
@@ -29,6 +29,31 @@ option java_outer_classname = "AudioConfigProto";
 option java_package = "com.google.cloud.dialogflow.cx.v3beta1";
 option objc_class_prefix = "DF";
 
+// Information for a word recognized by the speech recognizer.
+message SpeechWordInfo {
+  // The word this info is for.
+  string word = 3;
+
+  // Time offset relative to the beginning of the audio that corresponds to the
+  // start of the spoken word. This is an experimental feature and the accuracy
+  // of the time offset can vary.
+  google.protobuf.Duration start_offset = 1;
+
+  // Time offset relative to the beginning of the audio that corresponds to the
+  // end of the spoken word. This is an experimental feature and the accuracy of
+  // the time offset can vary.
+  google.protobuf.Duration end_offset = 2;
+
+  // The Speech confidence between 0.0 and 1.0 for this word. A higher number
+  // indicates an estimated greater likelihood that the recognized word is
+  // correct. The default of 0.0 is a sentinel value indicating that confidence
+  // was not set.
+  //
+  // This field is not guaranteed to be fully stable over time for the same
+  // audio input. Users should also not rely on it to always be provided.
+  float confidence = 4;
+}
+
 // Audio encoding of the audio content sent in the conversational query request.
 // Refer to the
 // [Cloud Speech API
@@ -78,31 +103,6 @@ enum AudioEncoding {
   AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE = 7;
 }
 
-// Information for a word recognized by the speech recognizer.
-message SpeechWordInfo {
-  // The word this info is for.
-  string word = 3;
-
-  // Time offset relative to the beginning of the audio that corresponds to the
-  // start of the spoken word. This is an experimental feature and the accuracy
-  // of the time offset can vary.
-  google.protobuf.Duration start_offset = 1;
-
-  // Time offset relative to the beginning of the audio that corresponds to the
-  // end of the spoken word. This is an experimental feature and the accuracy of
-  // the time offset can vary.
-  google.protobuf.Duration end_offset = 2;
-
-  // The Speech confidence between 0.0 and 1.0 for this word. A higher number
-  // indicates an estimated greater likelihood that the recognized word is
-  // correct. The default of 0.0 is a sentinel value indicating that confidence
-  // was not set.
-  //
-  // This field is not guaranteed to be fully stable over time for the same
-  // audio input. Users should also not rely on it to always be provided.
-  float confidence = 4;
-}
-
 // Instructs the speech recognizer on how to process the audio content.
 message InputAudioConfig {
   // Required. Audio encoding of the audio content to process.
@@ -249,6 +249,22 @@ message SynthesizeSpeechConfig {
   VoiceSelectionParams voice = 4;
 }
 
+// Instructs the speech synthesizer how to generate the output audio content.
+message OutputAudioConfig {
+  // Required. Audio encoding of the synthesized audio content.
+  OutputAudioEncoding audio_encoding = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Optional. The synthesis sample rate (in hertz) for this audio. If not
+  // provided, then the synthesizer will use the default sample rate based on
+  // the audio encoding. If this is different from the voice's natural sample
+  // rate, then the synthesizer will honor this request by converting to the
+  // desired sample rate (which might result in worse audio quality).
+  int32 sample_rate_hertz = 2;
+
+  // Optional. Configuration of how speech should be synthesized.
+  SynthesizeSpeechConfig synthesize_speech_config = 3;
+}
+
 // Gender of the voice as described in
 // [SSML voice element](https://www.w3.org/TR/speech-synthesis11/#edef_voice).
 enum SsmlVoiceGender {
@@ -266,22 +282,6 @@ enum SsmlVoiceGender {
   SSML_VOICE_GENDER_NEUTRAL = 3;
 }
 
-// Instructs the speech synthesizer how to generate the output audio content.
-message OutputAudioConfig {
-  // Required. Audio encoding of the synthesized audio content.
-  OutputAudioEncoding audio_encoding = 1 [(google.api.field_behavior) = REQUIRED];
-
-  // Optional. The synthesis sample rate (in hertz) for this audio. If not
-  // provided, then the synthesizer will use the default sample rate based on
-  // the audio encoding. If this is different from the voice's natural sample
-  // rate, then the synthesizer will honor this request by converting to the
-  // desired sample rate (which might result in worse audio quality).
-  int32 sample_rate_hertz = 2;
-
-  // Optional. Configuration of how speech should be synthesized.
-  SynthesizeSpeechConfig synthesize_speech_config = 3;
-}
-
 // Audio encoding of the output audio format in Text-To-Speech.
 enum OutputAudioEncoding {
   // Not specified.
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/entity_type.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/entity_type.proto
index 8381b4de3..8086a5758 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/entity_type.proto
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/entity_type.proto
@@ -231,7 +231,7 @@ message ListEntityTypesRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -276,7 +276,7 @@ message GetEntityTypeRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -304,7 +304,7 @@ message CreateEntityTypeRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -323,7 +323,7 @@ message UpdateEntityTypeRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
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 947d44899..f8b92b5eb 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
@@ -250,7 +250,7 @@ message CreateFlowRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -307,7 +307,7 @@ message ListFlowsRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 4;
@@ -344,7 +344,7 @@ message GetFlowRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -366,7 +366,7 @@ message UpdateFlowRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
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 f0e7fd81e..c0479c472 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
@@ -236,7 +236,7 @@ message ListIntentsRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -282,7 +282,7 @@ message GetIntentRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -308,7 +308,7 @@ message CreateIntentRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -325,7 +325,7 @@ message UpdateIntentRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/page.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/page.proto
index c9e5a223d..4a8acf7a5 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/page.proto
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/page.proto
@@ -386,7 +386,7 @@ message ListPagesRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -434,7 +434,7 @@ message GetPageRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -466,7 +466,7 @@ message CreatePageRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -488,7 +488,7 @@ message UpdatePageRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
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 89d4d0d7b..1b0e26699 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
@@ -433,9 +433,9 @@ message QueryInput {
   }
 
   // Required. The language of the input. See [Language
-  // Support](https://cloud.google.com/dialogflow/docs/reference/language) for a
-  // list of the currently supported language codes. Note that queries in the
-  // same session do not necessarily need to specify the same language.
+  // Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
+  // for a list of the currently supported language codes. Note that queries in
+  // the same session do not necessarily need to specify the same language.
   string language_code = 4 [(google.api.field_behavior) = REQUIRED];
 }
 
@@ -462,7 +462,7 @@ message QueryResult {
 
   // The language that was triggered during intent detection.
   // See [Language
-  // Support](https://cloud.google.com/dialogflow/docs/reference/language)
+  // Support](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // for a list of the currently supported language codes.
   string language_code = 2;
 
diff --git a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
index c188ed574..341985b4a 100644
--- a/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
+++ b/proto-google-cloud-dialogflow-cx-v3beta1/src/main/proto/google/cloud/dialogflow/cx/v3beta1/transition_route_group.proto
@@ -130,7 +130,7 @@ message ListTransitionRouteGroupsRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 4;
@@ -167,7 +167,7 @@ message GetTransitionRouteGroupRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 2;
@@ -194,7 +194,7 @@ message CreateTransitionRouteGroupRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
@@ -214,7 +214,7 @@ message UpdateTransitionRouteGroupRequest {
   //
   // If not specified, the agent's default language is used.
   // [Many
-  // languages](https://cloud.google.com/dialogflow/docs/reference/language)
+  // languages](https://cloud.google.com/dialogflow/cx/docs/reference/language)
   // are supported.
   // Note: languages must be enabled in the agent before they can be used.
   string language_code = 3;
diff --git a/synth.metadata b/synth.metadata
index df889572a..072168bf3 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,23 +4,23 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-dialogflow-cx.git",
-        "sha": "7cfb6749ede7e7b01d606e83b6ac414466d23378"
+        "sha": "ece4dc5e25ee639db08bf8557d6c51d5c1d0e03d"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "af8f71dae961ee036a0ac52a1965270149a6b2c9",
-        "internalRef": "358516065"
+        "sha": "b89bcc4f118c2b632140e3a5ed7ed7f554348a11",
+        "internalRef": "359099050"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "af8f71dae961ee036a0ac52a1965270149a6b2c9",
-        "internalRef": "358516065"
+        "sha": "b89bcc4f118c2b632140e3a5ed7ed7f554348a11",
+        "internalRef": "359099050"
       }
     },
     {