diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 181a128..5ac7745 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -10,7 +10,7 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
 
     steps:
     - uses: actions/checkout@v2
diff --git a/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaClientOptions.java b/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaClientOptions.java
index 4f189bb..797cd4d 100644
--- a/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaClientOptions.java
+++ b/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaClientOptions.java
@@ -40,14 +40,14 @@ public class NebulaClientOptions implements Serializable {
 
     private final SelfSignParams selfSignParams;
 
-    private final String version;
+    private final String handshakeKey;
 
     private NebulaClientOptions(String metaAddress, String graphAddress, String username,
                                 String password, int timeout, int connectRetry,
                                 boolean enableGraphSSL, boolean enableMetaSSL,
                                 boolean enableStorageSSL,
                                 SSLSignType sslSignType, CASignParams caSignParams,
-                                SelfSignParams selfSignParams, String version) {
+                                SelfSignParams selfSignParams, String handshakeKey) {
         this.metaAddress = metaAddress;
         this.graphAddress = graphAddress;
         this.username = username;
@@ -60,7 +60,7 @@ private NebulaClientOptions(String metaAddress, String graphAddress, String user
         this.sslSignType = sslSignType;
         this.caSignParams = caSignParams;
         this.selfSignParams = selfSignParams;
-        this.version = version;
+        this.handshakeKey = handshakeKey;
     }
 
     public List<HostAddress> getMetaAddress() {
@@ -120,8 +120,8 @@ public SelfSignParams getSelfSignParam() {
         return selfSignParams;
     }
 
-    public String getVersion() {
-        return version;
+    public String getHandshakeKey() {
+        return handshakeKey;
     }
 
     /**
@@ -142,7 +142,7 @@ public static class NebulaClientOptionsBuilder {
         private SSLSignType sslSignType = null;
         private CASignParams caSignParams = null;
         private SelfSignParams selfSignParams = null;
-        private String version = null;
+        private String handshakeKey = null;
 
         public NebulaClientOptionsBuilder setMetaAddress(String metaAddress) {
             this.metaAddress = metaAddress;
@@ -207,8 +207,8 @@ public NebulaClientOptionsBuilder setSelfSignParam(String crtFilePath, String ke
             return this;
         }
 
-        public NebulaClientOptionsBuilder setVersion(String version) {
-            this.version = version;
+        public NebulaClientOptionsBuilder setHandshakeKey(String handshakeKey) {
+            this.handshakeKey = handshakeKey;
             return this;
         }
 
@@ -259,7 +259,7 @@ public NebulaClientOptions build() {
                     sslSignType,
                     caSignParams,
                     selfSignParams,
-                    version);
+                    handshakeKey);
         }
     }
 }
diff --git a/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaGraphConnectionProvider.java b/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaGraphConnectionProvider.java
index 15244da..e7f54b4 100644
--- a/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaGraphConnectionProvider.java
+++ b/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaGraphConnectionProvider.java
@@ -44,7 +44,7 @@ public NebulaPool getNebulaPool() throws UnknownHostException {
         Collections.shuffle(addresses);
         NebulaPoolConfig poolConfig = new NebulaPoolConfig();
         poolConfig.setTimeout(nebulaClientOptions.getTimeout());
-        poolConfig.setVersion(nebulaClientOptions.getVersion());
+        poolConfig.setHandshakeKey(nebulaClientOptions.getHandshakeKey());
         if (nebulaClientOptions.isEnableGraphSSL()) {
             poolConfig.setEnableSsl(true);
             switch (nebulaClientOptions.getSSLSignType()) {
diff --git a/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaMetaConnectionProvider.java b/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaMetaConnectionProvider.java
index 502aa53..55921fb 100644
--- a/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaMetaConnectionProvider.java
+++ b/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaMetaConnectionProvider.java
@@ -65,7 +65,7 @@ public MetaClient getMetaClient() throws TException, ClientServerIncompatibleExc
             metaClient = new MetaClient(addresses, timeout, retry, retry);
         }
 
-        metaClient.setVersion(nebulaClientOptions.getVersion());
+        metaClient.setHandshakeKey(nebulaClientOptions.getHandshakeKey());
         metaClient.connect();
         return metaClient;
     }
diff --git a/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaStorageConnectionProvider.java b/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaStorageConnectionProvider.java
index aa82568..0337ea8 100644
--- a/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaStorageConnectionProvider.java
+++ b/connector/src/main/java/org.apache.flink/connector/nebula/connection/NebulaStorageConnectionProvider.java
@@ -56,7 +56,7 @@ public StorageClient getStorageClient() throws Exception {
             storageClient = new StorageClient(addresses, timeout);
         }
 
-        storageClient.setVersion(nebulaClientOptions.getVersion());
+        storageClient.setHandshakeKey(nebulaClientOptions.getHandshakeKey());
         if (!storageClient.connect()) {
             throw new Exception("failed to connect storaged.");
         }
diff --git a/connector/src/test/java/org/apache/flink/connector/nebula/connection/NebulaGraphConnectionProviderTest.java b/connector/src/test/java/org/apache/flink/connector/nebula/connection/NebulaGraphConnectionProviderTest.java
index 84b5062..481c9e0 100644
--- a/connector/src/test/java/org/apache/flink/connector/nebula/connection/NebulaGraphConnectionProviderTest.java
+++ b/connector/src/test/java/org/apache/flink/connector/nebula/connection/NebulaGraphConnectionProviderTest.java
@@ -40,7 +40,7 @@ public void getNebulaPool() {
                         .setPassword("nebula")
                         .setConnectRetry(1)
                         .setTimeout(1000)
-                        .setVersion("test")
+                        .setHandshakeKey("test")
                         .build();
         NebulaGraphConnectionProvider graphConnectionProvider =
                 new NebulaGraphConnectionProvider(nebulaClientOptions);
@@ -63,7 +63,7 @@ public void getNebulaPoolWithWrongVersion() {
                         .setPassword("nebula")
                         .setConnectRetry(1)
                         .setTimeout(1000)
-                        .setVersion("INVALID_VERSION")
+                        .setHandshakeKey("INVALID_VERSION")
                         .build();
         NebulaGraphConnectionProvider graphConnectionProvider =
                 new NebulaGraphConnectionProvider(nebulaClientOptions);