diff --git a/CHANGELOG b/CHANGELOG
index e5e42480a..78cc89654 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+2024-12-13 Version: 1.8.22
+- Generated 2017-08-01 for `polardb`.
+
 2024-12-13 Version: 2.0.32
 - Update DescribeApiMetering API.
 
diff --git a/aliyun-net-sdk-polardb/Polardb/Model/V20170801/CreateAccountRequest.cs b/aliyun-net-sdk-polardb/Polardb/Model/V20170801/CreateAccountRequest.cs
index c1598b5fe..5494fcbe5 100644
--- a/aliyun-net-sdk-polardb/Polardb/Model/V20170801/CreateAccountRequest.cs
+++ b/aliyun-net-sdk-polardb/Polardb/Model/V20170801/CreateAccountRequest.cs
@@ -64,8 +64,6 @@ public CreateAccountRequest()
 
 		private string dBName;
 
-		private string privForAllDB;
-
 		public long? ResourceOwnerId
 		{
 			get
@@ -220,19 +218,6 @@ public string DBName
 				dBName = value;
 				DictionaryUtil.Add(QueryParameters, "DBName", value);
 			}
-		}
-
-		public string PrivForAllDB
-		{
-			get
-			{
-				return privForAllDB;
-			}
-			set	
-			{
-				privForAllDB = value;
-				DictionaryUtil.Add(QueryParameters, "PrivForAllDB", value);
-			}
 		}
 
         public override CreateAccountResponse GetResponse(UnmarshallerContext unmarshallerContext)
diff --git a/aliyun-net-sdk-polardb/Polardb/Model/V20170801/CreateDBClusterRequest.cs b/aliyun-net-sdk-polardb/Polardb/Model/V20170801/CreateDBClusterRequest.cs
index 009789237..f5174fc89 100644
--- a/aliyun-net-sdk-polardb/Polardb/Model/V20170801/CreateDBClusterRequest.cs
+++ b/aliyun-net-sdk-polardb/Polardb/Model/V20170801/CreateDBClusterRequest.cs
@@ -126,6 +126,8 @@ public CreateDBClusterRequest()
 
 		private string burstingEnabled;
 
+		private string targetMinorVersion;
+
 		private int? dBNodeNum;
 
 		private long? storageUpperBound;
@@ -715,6 +717,19 @@ public string BurstingEnabled
 			}
 		}
 
+		public string TargetMinorVersion
+		{
+			get
+			{
+				return targetMinorVersion;
+			}
+			set	
+			{
+				targetMinorVersion = value;
+				DictionaryUtil.Add(QueryParameters, "TargetMinorVersion", value);
+			}
+		}
+
 		public int? DBNodeNum
 		{
 			get
diff --git a/aliyun-net-sdk-polardb/Polardb/Model/V20170801/ModifyDBClusterAndNodesParametersRequest.cs b/aliyun-net-sdk-polardb/Polardb/Model/V20170801/ModifyDBClusterAndNodesParametersRequest.cs
index 5e49dabc0..db3924ac1 100644
--- a/aliyun-net-sdk-polardb/Polardb/Model/V20170801/ModifyDBClusterAndNodesParametersRequest.cs
+++ b/aliyun-net-sdk-polardb/Polardb/Model/V20170801/ModifyDBClusterAndNodesParametersRequest.cs
@@ -58,6 +58,8 @@ public ModifyDBClusterAndNodesParametersRequest()
 
 		private string plannedStartTime;
 
+		private string standbyClusterIdListNeedToSync;
+
 		private string parameters;
 
 		private bool? fromTimeService;
@@ -179,6 +181,19 @@ public string PlannedStartTime
 			}
 		}
 
+		public string StandbyClusterIdListNeedToSync
+		{
+			get
+			{
+				return standbyClusterIdListNeedToSync;
+			}
+			set	
+			{
+				standbyClusterIdListNeedToSync = value;
+				DictionaryUtil.Add(QueryParameters, "StandbyClusterIdListNeedToSync", value);
+			}
+		}
+
 		public string Parameters
 		{
 			get
diff --git a/aliyun-net-sdk-polardb/aliyun-net-sdk-polardb.vs2017.csproj b/aliyun-net-sdk-polardb/aliyun-net-sdk-polardb.vs2017.csproj
index 07b10b8b2..81f2707be 100644
--- a/aliyun-net-sdk-polardb/aliyun-net-sdk-polardb.vs2017.csproj
+++ b/aliyun-net-sdk-polardb/aliyun-net-sdk-polardb.vs2017.csproj
@@ -3,7 +3,7 @@
   <PropertyGroup>
     <TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
     <RootNamespace>Aliyun.Acs.polardb</RootNamespace>
-    <Version>1.8.21</Version>
+    <Version>1.8.22</Version>
     <Authors>Alibaba Cloud</Authors>
     <Copyright>©2009-2019 Alibaba Cloud</Copyright>
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>