diff --git a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceClient.java b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceClient.java
index 5fb3b776a..e1bb46b5d 100644
--- a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceClient.java
+++ b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceClient.java
@@ -96,7 +96,10 @@
  *     AssetServiceClient.create(assetServiceSettings);
  * </code>
  * </pre>
+ *
+ * @deprecated The v1beta1 endpoint was turned down 2020-09-28.
  */
+@Deprecated
 @Generated("by gapic-generator")
 @BetaApi
 public class AssetServiceClient implements BackgroundResource {
diff --git a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceSettings.java b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceSettings.java
index 0c4a2bd9d..733ac7254 100644
--- a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceSettings.java
+++ b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceSettings.java
@@ -62,7 +62,10 @@
  * AssetServiceSettings assetServiceSettings = assetServiceSettingsBuilder.build();
  * </code>
  * </pre>
+ *
+ * @deprecated The v1beta1 endpoint was turned down 2020-09-28.
  */
+@Deprecated
 @Generated("by gapic-generator")
 @BetaApi
 public class AssetServiceSettings extends ClientSettings<AssetServiceSettings> {
diff --git a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/package-info.java b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/package-info.java
index 2872d8126..99ea1b850 100644
--- a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/package-info.java
+++ b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/package-info.java
@@ -37,6 +37,7 @@
  * </code>
  * </pre>
  */
+@Deprecated
 @Generated("by gapic-generator")
 package com.google.cloud.asset.v1beta1;
 
diff --git a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/AssetServiceStub.java b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/AssetServiceStub.java
index e8e36a821..bac235ed0 100644
--- a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/AssetServiceStub.java
+++ b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/AssetServiceStub.java
@@ -32,7 +32,10 @@
  * Base stub class for Cloud Asset API.
  *
  * <p>This class is for advanced usage and reflects the underlying API directly.
+ *
+ * @deprecated The v1beta1 endpoint was turned down 2020-09-28.
  */
+@Deprecated
 @Generated("by gapic-generator")
 @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
 public abstract class AssetServiceStub implements BackgroundResource {
diff --git a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/AssetServiceStubSettings.java b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/AssetServiceStubSettings.java
index e3ab77b21..961b01fab 100644
--- a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/AssetServiceStubSettings.java
+++ b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/AssetServiceStubSettings.java
@@ -78,7 +78,10 @@
  * AssetServiceStubSettings assetServiceSettings = assetServiceSettingsBuilder.build();
  * </code>
  * </pre>
+ *
+ * @deprecated The v1beta1 endpoint was turned down 2020-09-28.
  */
+@Deprecated
 @Generated("by gapic-generator")
 @BetaApi
 public class AssetServiceStubSettings extends StubSettings<AssetServiceStubSettings> {
diff --git a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/GrpcAssetServiceCallableFactory.java b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/GrpcAssetServiceCallableFactory.java
index 4668c4b5b..7e234e579 100644
--- a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/GrpcAssetServiceCallableFactory.java
+++ b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/GrpcAssetServiceCallableFactory.java
@@ -39,7 +39,10 @@
  * gRPC callable factory implementation for Cloud Asset API.
  *
  * <p>This class is for advanced usage.
+ *
+ * @deprecated The v1beta1 endpoint was turned down 2020-09-28.
  */
+@Deprecated
 @Generated("by gapic-generator")
 @BetaApi("The surface for use by generated code is not stable yet and may change in the future.")
 public class GrpcAssetServiceCallableFactory implements GrpcStubCallableFactory {
diff --git a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/GrpcAssetServiceStub.java b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/GrpcAssetServiceStub.java
index 4d8c66107..3c27cba6d 100644
--- a/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/GrpcAssetServiceStub.java
+++ b/google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/GrpcAssetServiceStub.java
@@ -43,7 +43,10 @@
  * gRPC stub implementation for Cloud Asset API.
  *
  * <p>This class is for advanced usage and reflects the underlying API directly.
+ *
+ * @deprecated The v1beta1 endpoint was turned down 2020-09-28.
  */
+@Deprecated
 @Generated("by gapic-generator")
 @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
 public class GrpcAssetServiceStub extends AssetServiceStub {
diff --git a/grpc-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceGrpc.java b/grpc-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceGrpc.java
index 9bb587d31..4005e04cc 100644
--- a/grpc-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceGrpc.java
+++ b/grpc-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceGrpc.java
@@ -28,7 +28,10 @@
  * <pre>
  * Asset service definition.
  * </pre>
+ *
+ * @deprecated The v1beta1 endpoint was turned down 2020-09-28.
  */
+@Deprecated
 @javax.annotation.Generated(
     value = "by gRPC proto compiler",
     comments = "Source: google/cloud/asset/v1beta1/asset_service.proto")
diff --git a/synth.metadata b/synth.metadata
index 2f4f5bd3e..cc124517f 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -73,15 +73,6 @@
         "generator": "bazel"
       }
     },
-    {
-      "client": {
-        "source": "googleapis",
-        "apiName": "asset",
-        "apiVersion": "v1beta1",
-        "language": "java",
-        "generator": "bazel"
-      }
-    },
     {
       "client": {
         "source": "googleapis",
@@ -193,13 +184,6 @@
     "google-cloud-asset/src/main/java/com/google/cloud/asset/v1/stub/AssetServiceStubSettings.java",
     "google-cloud-asset/src/main/java/com/google/cloud/asset/v1/stub/GrpcAssetServiceCallableFactory.java",
     "google-cloud-asset/src/main/java/com/google/cloud/asset/v1/stub/GrpcAssetServiceStub.java",
-    "google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceClient.java",
-    "google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceSettings.java",
-    "google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/package-info.java",
-    "google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/AssetServiceStub.java",
-    "google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/AssetServiceStubSettings.java",
-    "google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/GrpcAssetServiceCallableFactory.java",
-    "google-cloud-asset/src/main/java/com/google/cloud/asset/v1beta1/stub/GrpcAssetServiceStub.java",
     "google-cloud-asset/src/main/java/com/google/cloud/asset/v1p1beta1/AssetServiceClient.java",
     "google-cloud-asset/src/main/java/com/google/cloud/asset/v1p1beta1/AssetServiceSettings.java",
     "google-cloud-asset/src/main/java/com/google/cloud/asset/v1p1beta1/package-info.java",
@@ -231,9 +215,6 @@
     "google-cloud-asset/src/test/java/com/google/cloud/asset/v1/AssetServiceClientTest.java",
     "google-cloud-asset/src/test/java/com/google/cloud/asset/v1/MockAssetService.java",
     "google-cloud-asset/src/test/java/com/google/cloud/asset/v1/MockAssetServiceImpl.java",
-    "google-cloud-asset/src/test/java/com/google/cloud/asset/v1beta1/AssetServiceClientTest.java",
-    "google-cloud-asset/src/test/java/com/google/cloud/asset/v1beta1/MockAssetService.java",
-    "google-cloud-asset/src/test/java/com/google/cloud/asset/v1beta1/MockAssetServiceImpl.java",
     "google-cloud-asset/src/test/java/com/google/cloud/asset/v1p1beta1/AssetServiceClientTest.java",
     "google-cloud-asset/src/test/java/com/google/cloud/asset/v1p1beta1/MockAssetService.java",
     "google-cloud-asset/src/test/java/com/google/cloud/asset/v1p1beta1/MockAssetServiceImpl.java",
@@ -247,7 +228,6 @@
     "google-cloud-asset/src/test/java/com/google/cloud/asset/v1p5beta1/MockAssetService.java",
     "google-cloud-asset/src/test/java/com/google/cloud/asset/v1p5beta1/MockAssetServiceImpl.java",
     "grpc-google-cloud-asset-v1/src/main/java/com/google/cloud/asset/v1/AssetServiceGrpc.java",
-    "grpc-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceGrpc.java",
     "grpc-google-cloud-asset-v1p1beta1/src/main/java/com/google/cloud/asset/v1p1beta1/AssetServiceGrpc.java",
     "grpc-google-cloud-asset-v1p2beta1/src/main/java/com/google/cloud/asset/v1p2beta1/AssetServiceGrpc.java",
     "grpc-google-cloud-asset-v1p4beta1/src/main/java/com/google/cloud/asset/v1p4beta1/AssetServiceGrpc.java",
@@ -334,31 +314,6 @@
     "proto-google-cloud-asset-v1/src/main/java/com/google/cloud/asset/v1/UpdateFeedRequestOrBuilder.java",
     "proto-google-cloud-asset-v1/src/main/proto/google/cloud/asset/v1/asset_service.proto",
     "proto-google-cloud-asset-v1/src/main/proto/google/cloud/asset/v1/assets.proto",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/Asset.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/AssetOrBuilder.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/AssetProto.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/AssetServiceProto.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/BatchGetAssetsHistoryRequest.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/BatchGetAssetsHistoryRequestOrBuilder.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/BatchGetAssetsHistoryResponse.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/BatchGetAssetsHistoryResponseOrBuilder.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/ContentType.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/ExportAssetsRequest.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/ExportAssetsRequestOrBuilder.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/ExportAssetsResponse.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/ExportAssetsResponseOrBuilder.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/GcsDestination.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/GcsDestinationOrBuilder.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/OutputConfig.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/OutputConfigOrBuilder.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/Resource.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/ResourceOrBuilder.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/TemporalAsset.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/TemporalAssetOrBuilder.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/TimeWindow.java",
-    "proto-google-cloud-asset-v1beta1/src/main/java/com/google/cloud/asset/v1beta1/TimeWindowOrBuilder.java",
-    "proto-google-cloud-asset-v1beta1/src/main/proto/google/cloud/asset/v1beta1/asset_service.proto",
-    "proto-google-cloud-asset-v1beta1/src/main/proto/google/cloud/asset/v1beta1/assets.proto",
     "proto-google-cloud-asset-v1p1beta1/src/main/java/com/google/cloud/asset/v1p1beta1/AssetProto.java",
     "proto-google-cloud-asset-v1p1beta1/src/main/java/com/google/cloud/asset/v1p1beta1/AssetServiceProto.java",
     "proto-google-cloud-asset-v1p1beta1/src/main/java/com/google/cloud/asset/v1p1beta1/IamPolicySearchResult.java",
diff --git a/synth.py b/synth.py
index ed6afd39b..165dc7ad5 100644
--- a/synth.py
+++ b/synth.py
@@ -19,7 +19,7 @@
 AUTOSYNTH_MULTIPLE_COMMITS = True
 
 service = 'asset'
-versions = ['v1', 'v1beta1', 'v1p2beta1', 'v1p1beta1', 'v1p4beta1', 'v1p5beta1']
+versions = ['v1', 'v1p2beta1', 'v1p1beta1', 'v1p4beta1', 'v1p5beta1']
 
 for version in versions:
   library = java.bazel_library(