diff --git a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/metadata/ConfigurableMetadataServiceExporter.java b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/metadata/ConfigurableMetadataServiceExporter.java
index 568aae63ddd..65ede76291c 100644
--- a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/metadata/ConfigurableMetadataServiceExporter.java
+++ b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/metadata/ConfigurableMetadataServiceExporter.java
@@ -28,6 +28,7 @@
 import org.apache.dubbo.config.RegistryConfig;
 import org.apache.dubbo.config.ServiceConfig;
 import org.apache.dubbo.metadata.MetadataService;
+import org.apache.dubbo.registry.client.metadata.MetadataServiceDelegation;
 import org.apache.dubbo.rpc.Protocol;
 import org.apache.dubbo.rpc.ProtocolServer;
 import org.apache.dubbo.rpc.model.ApplicationModel;
diff --git a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/metadata/ExporterDeployListener.java b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/metadata/ExporterDeployListener.java
index 1a0bafc12db..bff2e2920ea 100644
--- a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/metadata/ExporterDeployListener.java
+++ b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/metadata/ExporterDeployListener.java
@@ -19,6 +19,7 @@
 import org.apache.dubbo.common.deploy.ApplicationDeployListener;
 import org.apache.dubbo.common.lang.Prioritized;
 import org.apache.dubbo.common.utils.StringUtils;
+import org.apache.dubbo.registry.client.metadata.MetadataServiceDelegation;
 import org.apache.dubbo.rpc.model.ApplicationModel;
 
 import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_METADATA_STORAGE_TYPE;
diff --git a/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/config/integration/multiple/servicediscoveryregistry/MultipleRegistryCenterServiceDiscoveryRegistryIntegrationTest.java b/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/config/integration/multiple/servicediscoveryregistry/MultipleRegistryCenterServiceDiscoveryRegistryIntegrationTest.java
index 1c2b154637c..f27fcd71b31 100644
--- a/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/config/integration/multiple/servicediscoveryregistry/MultipleRegistryCenterServiceDiscoveryRegistryIntegrationTest.java
+++ b/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/config/integration/multiple/servicediscoveryregistry/MultipleRegistryCenterServiceDiscoveryRegistryIntegrationTest.java
@@ -25,8 +25,8 @@
 import org.apache.dubbo.config.ServiceConfig;
 import org.apache.dubbo.config.bootstrap.DubboBootstrap;
 import org.apache.dubbo.config.integration.IntegrationTest;
-import org.apache.dubbo.config.metadata.MetadataServiceDelegation;
 import org.apache.dubbo.registry.RegistryServiceListener;
+import org.apache.dubbo.registry.client.metadata.MetadataServiceDelegation;
 import org.apache.dubbo.test.check.registrycenter.config.ZookeeperConfig;
 import org.apache.dubbo.test.check.registrycenter.config.ZookeeperRegistryCenterConfig;
 
diff --git a/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/config/integration/multiple/servicediscoveryregistry/ServiceDiscoveryRegistryInfoWrapper.java b/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/config/integration/multiple/servicediscoveryregistry/ServiceDiscoveryRegistryInfoWrapper.java
index be60e4ea83d..94b7200f81c 100644
--- a/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/config/integration/multiple/servicediscoveryregistry/ServiceDiscoveryRegistryInfoWrapper.java
+++ b/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/config/integration/multiple/servicediscoveryregistry/ServiceDiscoveryRegistryInfoWrapper.java
@@ -16,8 +16,8 @@
  */
 package org.apache.dubbo.config.integration.multiple.servicediscoveryregistry;
 
-import org.apache.dubbo.config.metadata.MetadataServiceDelegation;
 import org.apache.dubbo.registry.client.ServiceDiscoveryRegistry;
+import org.apache.dubbo.registry.client.metadata.MetadataServiceDelegation;
 
 /**
  * The instance to wrap {@link org.apache.dubbo.registry.client.ServiceDiscoveryRegistry}
diff --git a/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/config/integration/single/SingleRegistryCenterDubboProtocolIntegrationTest.java b/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/config/integration/single/SingleRegistryCenterDubboProtocolIntegrationTest.java
index 3b5ec697b98..c4f1e866a08 100644
--- a/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/config/integration/single/SingleRegistryCenterDubboProtocolIntegrationTest.java
+++ b/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/config/integration/single/SingleRegistryCenterDubboProtocolIntegrationTest.java
@@ -27,13 +27,13 @@
 import org.apache.dubbo.config.ServiceListener;
 import org.apache.dubbo.config.bootstrap.DubboBootstrap;
 import org.apache.dubbo.config.integration.IntegrationTest;
-import org.apache.dubbo.config.metadata.MetadataServiceDelegation;
 import org.apache.dubbo.metadata.MetadataInfo;
 import org.apache.dubbo.metadata.MetadataService;
 import org.apache.dubbo.registry.ListenerRegistryWrapper;
 import org.apache.dubbo.registry.Registry;
 import org.apache.dubbo.registry.client.ServiceDiscoveryRegistry;
 import org.apache.dubbo.registry.client.ServiceDiscoveryRegistryDirectory;
+import org.apache.dubbo.registry.client.metadata.MetadataServiceDelegation;
 import org.apache.dubbo.registry.client.migration.MigrationInvoker;
 import org.apache.dubbo.registry.support.RegistryManager;
 import org.apache.dubbo.registry.zookeeper.ZookeeperServiceDiscovery;
diff --git a/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/metadata/MetadataServiceExporterTest.java b/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/metadata/MetadataServiceExporterTest.java
index 6e601315e69..dbaf02f41b6 100644
--- a/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/metadata/MetadataServiceExporterTest.java
+++ b/dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/metadata/MetadataServiceExporterTest.java
@@ -27,7 +27,7 @@
 //import org.apache.dubbo.config.bootstrap.DubboBootstrap;
 //import org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter;
 //import org.apache.dubbo.config.metadata.ExporterDeployListener;
-//import org.apache.dubbo.config.metadata.MetadataServiceDelegation;
+//import org.apache.dubbo.registry.client.metadata.MetadataServiceDelegation;
 //import org.apache.dubbo.config.provider.impl.DemoServiceImpl;
 //import org.apache.dubbo.rpc.model.ApplicationModel;
 //import org.apache.dubbo.rpc.model.FrameworkModel;
diff --git a/dubbo-dependencies-bom/pom.xml b/dubbo-dependencies-bom/pom.xml
index 2534fbbc454..c35aa01fc25 100644
--- a/dubbo-dependencies-bom/pom.xml
+++ b/dubbo-dependencies-bom/pom.xml
@@ -98,7 +98,7 @@
         <grizzly_version>2.4.4</grizzly_version>
         <httpclient_version>4.5.13</httpclient_version>
         <httpcore_version>4.4.6</httpcore_version>
-        <fastjson_version>1.2.70</fastjson_version>
+        <fastjson_version>1.2.83</fastjson_version>
         <zookeeper_version>3.4.14</zookeeper_version>
         <curator_version>4.2.0</curator_version>
         <curator_test_version>2.12.0</curator_test_version>
@@ -133,8 +133,10 @@
         <resteasy_version>3.0.19.Final</resteasy_version>
         <tomcat_embed_version>8.5.69</tomcat_embed_version>
         <jetcd_version>0.5.3</jetcd_version>
-        <nacos_version>2.0.4</nacos_version>
-        <grpc.version>1.31.1</grpc.version>
+        <nacos_version>2.1.0</nacos_version>
+        <grpc.version>1.44.0</grpc.version>
+        <grpc_contrib_verdion>0.8.1</grpc_contrib_verdion>
+        <jprotoc_version>1.2.1</jprotoc_version>
         <!-- Log libs -->
         <slf4j_version>1.7.25</slf4j_version>
         <jcl_version>1.2</jcl_version>
@@ -166,7 +168,7 @@
         <bouncycastle-bcprov_version>1.68</bouncycastle-bcprov_version>
         <metrics_version>2.0.1</metrics_version>
         <sofa_registry_version>5.2.0</sofa_registry_version>
-        <gson_version>2.8.5</gson_version>
+        <gson_version>2.8.9</gson_version>
         <jsonrpc_version>1.2.0</jsonrpc_version>
         <mortbay_jetty_version>6.1.26</mortbay_jetty_version>
         <portlet_version>2.0</portlet_version>
@@ -726,6 +728,21 @@
                 <artifactId>grpc-grpclb</artifactId>
                 <version>${grpc.version}</version>
             </dependency>
+            <dependency>
+                <groupId>io.grpc</groupId>
+                <artifactId>grpc-context</artifactId>
+                <version>${grpc.version}</version>
+            </dependency>
+            <dependency>
+                <groupId>com.salesforce.servicelibs</groupId>
+                <artifactId>grpc-contrib</artifactId>
+                <version>${grpc_contrib_verdion}</version>
+            </dependency>
+            <dependency>
+                <groupId>com.salesforce.servicelibs</groupId>
+                <artifactId>jprotoc</artifactId>
+                <version>${jprotoc_version}</version>
+            </dependency>
             <dependency>
                 <groupId>io.fabric8</groupId>
                 <artifactId>kubernetes-client</artifactId>
diff --git a/dubbo-registry/dubbo-registry-api/pom.xml b/dubbo-registry/dubbo-registry-api/pom.xml
index 0d69265f2b9..8cb14965440 100644
--- a/dubbo-registry/dubbo-registry-api/pom.xml
+++ b/dubbo-registry/dubbo-registry-api/pom.xml
@@ -80,10 +80,5 @@
             <artifactId>zookeeper</artifactId>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.apache.dubbo</groupId>
-            <artifactId>dubbo-config-api</artifactId>
-            <version>${project.parent.version}</version>
-        </dependency>
     </dependencies>
 </project>
diff --git a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ReflectionBasedServiceDiscovery.java b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ReflectionBasedServiceDiscovery.java
index bbbea2d90a9..fe5b193d51c 100644
--- a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ReflectionBasedServiceDiscovery.java
+++ b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ReflectionBasedServiceDiscovery.java
@@ -23,13 +23,13 @@
 import org.apache.dubbo.common.utils.NamedThreadFactory;
 import org.apache.dubbo.common.utils.NetUtils;
 import org.apache.dubbo.common.utils.StringUtils;
-import org.apache.dubbo.config.metadata.MetadataServiceDelegation;
 import org.apache.dubbo.metadata.InstanceMetadataChangedListener;
 import org.apache.dubbo.metadata.MetadataService;
 import org.apache.dubbo.metadata.RevisionResolver;
 import org.apache.dubbo.registry.Constants;
 import org.apache.dubbo.registry.client.event.ServiceInstancesChangedEvent;
 import org.apache.dubbo.registry.client.event.listener.ServiceInstancesChangedListener;
+import org.apache.dubbo.registry.client.metadata.MetadataServiceDelegation;
 import org.apache.dubbo.registry.client.metadata.MetadataUtils;
 import org.apache.dubbo.registry.client.metadata.ServiceInstanceMetadataUtils;
 import org.apache.dubbo.rpc.RpcException;
@@ -261,7 +261,7 @@ private String computeKey(ServiceInstance serviceInstance) {
     }
 
     private synchronized MetadataService getMetadataServiceProxy(ServiceInstance instance) {
-        return metadataServiceProxies.computeIfAbsent(computeKey(instance), k -> MetadataUtils.referProxy(instance));
+        return metadataServiceProxies.computeIfAbsent(computeKey(instance), k -> MetadataUtils.referProxy(instance).getProxy());
     }
 
     private synchronized void destroyMetadataServiceProxy(ServiceInstance instance) {
diff --git a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/metadata/MetadataServiceDelegation.java b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/MetadataServiceDelegation.java
similarity index 99%
rename from dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/metadata/MetadataServiceDelegation.java
rename to dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/MetadataServiceDelegation.java
index 451bf75d01e..eefc097d367 100644
--- a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/metadata/MetadataServiceDelegation.java
+++ b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/MetadataServiceDelegation.java
@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.config.metadata;
+package org.apache.dubbo.registry.client.metadata;
 
 import org.apache.dubbo.common.URL;
 import org.apache.dubbo.common.logger.Logger;
diff --git a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/MetadataUtils.java b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/MetadataUtils.java
index 2e44b5d65f4..0101aece5b6 100644
--- a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/MetadataUtils.java
+++ b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/MetadataUtils.java
@@ -203,7 +203,7 @@ private static ServiceInstance selectInstance(List<ServiceInstance> instances) {
         return instances.get(ThreadLocalRandom.current().nextInt(0, instances.size()));
     }
 
-    private static class ProxyHolder {
+    public static class ProxyHolder {
         private final ConsumerModel consumerModel;
         private final MetadataService proxy;
         private final ModuleModel internalModel;
diff --git a/pom.xml b/pom.xml
index c90a145f7a4..dfd97912b80 100644
--- a/pom.xml
+++ b/pom.xml
@@ -135,6 +135,7 @@
     <modules>
         <module>dubbo-common</module>
         <module>dubbo-container</module>
+        <module>dubbo-compiler</module>
         <module>dubbo-remoting</module>
         <module>dubbo-rpc</module>
         <module>dubbo-cluster</module>
@@ -325,10 +326,10 @@
                                         **/org/apache/dubbo/common/serialize/protobuf/support/wrapper/MapValue.java,
                                         **/org/apache/dubbo/common/serialize/protobuf/support/wrapper/ThrowablePB.java,
                                         **/org/apache/dubbo/triple/TripleWrapper.java,
-                                        **/istio/v1/auth/Ca.java,
-                                        **/istio/v1/auth/IstioCertificateServiceGrpc.java,
+                                        **/istio/v1/auth/**/*,
                                         **/com/google/rpc/*,
                                         **/generated/**/*,
+                                        **/generated-sources/**/*,
                                         **/grpc/health/**/*,
                                         **/grpc/reflection/**/*,
                                         **/target/**/*,