diff --git a/Translate/metadata/V3/AdaptiveMt.php b/Translate/metadata/V3/AdaptiveMt.php
index 3b461863ad49..3519bbd86b75 100644
Binary files a/Translate/metadata/V3/AdaptiveMt.php and b/Translate/metadata/V3/AdaptiveMt.php differ
diff --git a/Translate/metadata/V3/TranslationService.php b/Translate/metadata/V3/TranslationService.php
index f27050df40fe..434980c0b702 100644
Binary files a/Translate/metadata/V3/TranslationService.php and b/Translate/metadata/V3/TranslationService.php differ
diff --git a/Translate/src/V3/AdaptiveMtTranslateRequest/GlossaryConfig.php b/Translate/src/V3/AdaptiveMtTranslateRequest/GlossaryConfig.php
index 1857ea6f63e3..3776f46bf9f3 100644
--- a/Translate/src/V3/AdaptiveMtTranslateRequest/GlossaryConfig.php
+++ b/Translate/src/V3/AdaptiveMtTranslateRequest/GlossaryConfig.php
@@ -33,6 +33,13 @@ class GlossaryConfig extends \Google\Protobuf\Internal\Message
      * Generated from protobuf field <code>bool ignore_case = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
      */
     private $ignore_case = false;
+    /**
+     * Optional. If set to true, the glossary will be used for contextual
+     * translation.
+     *
+     * Generated from protobuf field <code>bool contextual_translation_enabled = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    private $contextual_translation_enabled = false;
 
     /**
      * Constructor.
@@ -48,6 +55,9 @@ class GlossaryConfig extends \Google\Protobuf\Internal\Message
      *     @type bool $ignore_case
      *           Optional. Indicates match is case insensitive. The default value is
      *           `false` if missing.
+     *     @type bool $contextual_translation_enabled
+     *           Optional. If set to true, the glossary will be used for contextual
+     *           translation.
      * }
      */
     public function __construct($data = NULL) {
@@ -115,6 +125,34 @@ public function setIgnoreCase($var)
         return $this;
     }
 
+    /**
+     * Optional. If set to true, the glossary will be used for contextual
+     * translation.
+     *
+     * Generated from protobuf field <code>bool contextual_translation_enabled = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return bool
+     */
+    public function getContextualTranslationEnabled()
+    {
+        return $this->contextual_translation_enabled;
+    }
+
+    /**
+     * Optional. If set to true, the glossary will be used for contextual
+     * translation.
+     *
+     * Generated from protobuf field <code>bool contextual_translation_enabled = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setContextualTranslationEnabled($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->contextual_translation_enabled = $var;
+
+        return $this;
+    }
+
 }
 
 // Adding a class alias for backwards compatibility with the previous class name.
diff --git a/Translate/src/V3/Client/TranslationServiceClient.php b/Translate/src/V3/Client/TranslationServiceClient.php
index 07a9091209c8..42c3d39832d8 100644
--- a/Translate/src/V3/Client/TranslationServiceClient.php
+++ b/Translate/src/V3/Client/TranslationServiceClient.php
@@ -100,44 +100,44 @@
  * name, and additionally a parseName method to extract the individual identifiers
  * contained within formatted names that are returned by the API.
  *
- * @method PromiseInterface adaptiveMtTranslateAsync(AdaptiveMtTranslateRequest $request, array $optionalArgs = [])
- * @method PromiseInterface batchTranslateDocumentAsync(BatchTranslateDocumentRequest $request, array $optionalArgs = [])
- * @method PromiseInterface batchTranslateTextAsync(BatchTranslateTextRequest $request, array $optionalArgs = [])
- * @method PromiseInterface createAdaptiveMtDatasetAsync(CreateAdaptiveMtDatasetRequest $request, array $optionalArgs = [])
- * @method PromiseInterface createDatasetAsync(CreateDatasetRequest $request, array $optionalArgs = [])
- * @method PromiseInterface createGlossaryAsync(CreateGlossaryRequest $request, array $optionalArgs = [])
- * @method PromiseInterface createGlossaryEntryAsync(CreateGlossaryEntryRequest $request, array $optionalArgs = [])
- * @method PromiseInterface createModelAsync(CreateModelRequest $request, array $optionalArgs = [])
- * @method PromiseInterface deleteAdaptiveMtDatasetAsync(DeleteAdaptiveMtDatasetRequest $request, array $optionalArgs = [])
- * @method PromiseInterface deleteAdaptiveMtFileAsync(DeleteAdaptiveMtFileRequest $request, array $optionalArgs = [])
- * @method PromiseInterface deleteDatasetAsync(DeleteDatasetRequest $request, array $optionalArgs = [])
- * @method PromiseInterface deleteGlossaryAsync(DeleteGlossaryRequest $request, array $optionalArgs = [])
- * @method PromiseInterface deleteGlossaryEntryAsync(DeleteGlossaryEntryRequest $request, array $optionalArgs = [])
- * @method PromiseInterface deleteModelAsync(DeleteModelRequest $request, array $optionalArgs = [])
- * @method PromiseInterface detectLanguageAsync(DetectLanguageRequest $request, array $optionalArgs = [])
- * @method PromiseInterface exportDataAsync(ExportDataRequest $request, array $optionalArgs = [])
- * @method PromiseInterface getAdaptiveMtDatasetAsync(GetAdaptiveMtDatasetRequest $request, array $optionalArgs = [])
- * @method PromiseInterface getAdaptiveMtFileAsync(GetAdaptiveMtFileRequest $request, array $optionalArgs = [])
- * @method PromiseInterface getDatasetAsync(GetDatasetRequest $request, array $optionalArgs = [])
- * @method PromiseInterface getGlossaryAsync(GetGlossaryRequest $request, array $optionalArgs = [])
- * @method PromiseInterface getGlossaryEntryAsync(GetGlossaryEntryRequest $request, array $optionalArgs = [])
- * @method PromiseInterface getModelAsync(GetModelRequest $request, array $optionalArgs = [])
- * @method PromiseInterface getSupportedLanguagesAsync(GetSupportedLanguagesRequest $request, array $optionalArgs = [])
- * @method PromiseInterface importAdaptiveMtFileAsync(ImportAdaptiveMtFileRequest $request, array $optionalArgs = [])
- * @method PromiseInterface importDataAsync(ImportDataRequest $request, array $optionalArgs = [])
- * @method PromiseInterface listAdaptiveMtDatasetsAsync(ListAdaptiveMtDatasetsRequest $request, array $optionalArgs = [])
- * @method PromiseInterface listAdaptiveMtFilesAsync(ListAdaptiveMtFilesRequest $request, array $optionalArgs = [])
- * @method PromiseInterface listAdaptiveMtSentencesAsync(ListAdaptiveMtSentencesRequest $request, array $optionalArgs = [])
- * @method PromiseInterface listDatasetsAsync(ListDatasetsRequest $request, array $optionalArgs = [])
- * @method PromiseInterface listExamplesAsync(ListExamplesRequest $request, array $optionalArgs = [])
- * @method PromiseInterface listGlossariesAsync(ListGlossariesRequest $request, array $optionalArgs = [])
- * @method PromiseInterface listGlossaryEntriesAsync(ListGlossaryEntriesRequest $request, array $optionalArgs = [])
- * @method PromiseInterface listModelsAsync(ListModelsRequest $request, array $optionalArgs = [])
- * @method PromiseInterface romanizeTextAsync(RomanizeTextRequest $request, array $optionalArgs = [])
- * @method PromiseInterface translateDocumentAsync(TranslateDocumentRequest $request, array $optionalArgs = [])
- * @method PromiseInterface translateTextAsync(TranslateTextRequest $request, array $optionalArgs = [])
- * @method PromiseInterface updateGlossaryAsync(UpdateGlossaryRequest $request, array $optionalArgs = [])
- * @method PromiseInterface updateGlossaryEntryAsync(UpdateGlossaryEntryRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<AdaptiveMtTranslateResponse> adaptiveMtTranslateAsync(AdaptiveMtTranslateRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<OperationResponse> batchTranslateDocumentAsync(BatchTranslateDocumentRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<OperationResponse> batchTranslateTextAsync(BatchTranslateTextRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<AdaptiveMtDataset> createAdaptiveMtDatasetAsync(CreateAdaptiveMtDatasetRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<OperationResponse> createDatasetAsync(CreateDatasetRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<OperationResponse> createGlossaryAsync(CreateGlossaryRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<GlossaryEntry> createGlossaryEntryAsync(CreateGlossaryEntryRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<OperationResponse> createModelAsync(CreateModelRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<void> deleteAdaptiveMtDatasetAsync(DeleteAdaptiveMtDatasetRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<void> deleteAdaptiveMtFileAsync(DeleteAdaptiveMtFileRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<OperationResponse> deleteDatasetAsync(DeleteDatasetRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<OperationResponse> deleteGlossaryAsync(DeleteGlossaryRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<void> deleteGlossaryEntryAsync(DeleteGlossaryEntryRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<OperationResponse> deleteModelAsync(DeleteModelRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<DetectLanguageResponse> detectLanguageAsync(DetectLanguageRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<OperationResponse> exportDataAsync(ExportDataRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<AdaptiveMtDataset> getAdaptiveMtDatasetAsync(GetAdaptiveMtDatasetRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<AdaptiveMtFile> getAdaptiveMtFileAsync(GetAdaptiveMtFileRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<Dataset> getDatasetAsync(GetDatasetRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<Glossary> getGlossaryAsync(GetGlossaryRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<GlossaryEntry> getGlossaryEntryAsync(GetGlossaryEntryRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<Model> getModelAsync(GetModelRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<SupportedLanguages> getSupportedLanguagesAsync(GetSupportedLanguagesRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<ImportAdaptiveMtFileResponse> importAdaptiveMtFileAsync(ImportAdaptiveMtFileRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<OperationResponse> importDataAsync(ImportDataRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listAdaptiveMtDatasetsAsync(ListAdaptiveMtDatasetsRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listAdaptiveMtFilesAsync(ListAdaptiveMtFilesRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listAdaptiveMtSentencesAsync(ListAdaptiveMtSentencesRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listDatasetsAsync(ListDatasetsRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listExamplesAsync(ListExamplesRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listGlossariesAsync(ListGlossariesRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listGlossaryEntriesAsync(ListGlossaryEntriesRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<PagedListResponse> listModelsAsync(ListModelsRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<RomanizeTextResponse> romanizeTextAsync(RomanizeTextRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<TranslateDocumentResponse> translateDocumentAsync(TranslateDocumentRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<TranslateTextResponse> translateTextAsync(TranslateTextRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<OperationResponse> updateGlossaryAsync(UpdateGlossaryRequest $request, array $optionalArgs = [])
+ * @method PromiseInterface<GlossaryEntry> updateGlossaryEntryAsync(UpdateGlossaryEntryRequest $request, array $optionalArgs = [])
  */
 final class TranslationServiceClient
 {
diff --git a/Translate/src/V3/TranslateTextGlossaryConfig.php b/Translate/src/V3/TranslateTextGlossaryConfig.php
index f99bf2b04950..2edd102cf343 100644
--- a/Translate/src/V3/TranslateTextGlossaryConfig.php
+++ b/Translate/src/V3/TranslateTextGlossaryConfig.php
@@ -32,6 +32,13 @@ class TranslateTextGlossaryConfig extends \Google\Protobuf\Internal\Message
      * Generated from protobuf field <code>bool ignore_case = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
      */
     private $ignore_case = false;
+    /**
+     * Optional. If set to true, the glossary will be used for contextual
+     * translation.
+     *
+     * Generated from protobuf field <code>bool contextual_translation_enabled = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     */
+    private $contextual_translation_enabled = false;
 
     /**
      * Constructor.
@@ -47,6 +54,9 @@ class TranslateTextGlossaryConfig extends \Google\Protobuf\Internal\Message
      *     @type bool $ignore_case
      *           Optional. Indicates match is case insensitive. The default value is `false`
      *           if missing.
+     *     @type bool $contextual_translation_enabled
+     *           Optional. If set to true, the glossary will be used for contextual
+     *           translation.
      * }
      */
     public function __construct($data = NULL) {
@@ -114,5 +124,33 @@ public function setIgnoreCase($var)
         return $this;
     }
 
+    /**
+     * Optional. If set to true, the glossary will be used for contextual
+     * translation.
+     *
+     * Generated from protobuf field <code>bool contextual_translation_enabled = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @return bool
+     */
+    public function getContextualTranslationEnabled()
+    {
+        return $this->contextual_translation_enabled;
+    }
+
+    /**
+     * Optional. If set to true, the glossary will be used for contextual
+     * translation.
+     *
+     * Generated from protobuf field <code>bool contextual_translation_enabled = 4 [(.google.api.field_behavior) = OPTIONAL];</code>
+     * @param bool $var
+     * @return $this
+     */
+    public function setContextualTranslationEnabled($var)
+    {
+        GPBUtil::checkBool($var);
+        $this->contextual_translation_enabled = $var;
+
+        return $this;
+    }
+
 }