diff --git a/.github/workflows/build_Stable_1x.yml b/.github/workflows/build_Stable_1x.yml
index d99e7af..692419a 100644
--- a/.github/workflows/build_Stable_1x.yml
+++ b/.github/workflows/build_Stable_1x.yml
@@ -46,8 +46,8 @@ jobs:
       run: java -version  
     - name: Setup Stable 1.x Nacos Server
       run: |
-        wget https://github.com/alibaba/nacos/releases/download/1.4.3/nacos-server-1.4.3.tar.gz
-        tar -xvf nacos-server-1.4.3.tar.gz
+        wget https://github.com/alibaba/nacos/releases/download/1.4.4/nacos-server-1.4.4.tar.gz
+        tar -xvf nacos-server-1.4.4.tar.gz
         cd nacos/bin
         # sed -i 's/nacos.core.auth.enabled=false/nacos.core.auth.enabled=true/g' ../conf/application.properties
         chmod 755 startup.sh
diff --git a/.github/workflows/build_Stable_2x.yml b/.github/workflows/build_Stable_2x.yml
index f08bc39..ed454fa 100644
--- a/.github/workflows/build_Stable_2x.yml
+++ b/.github/workflows/build_Stable_2x.yml
@@ -46,8 +46,8 @@ jobs:
       run: java -version  
     - name: Setup Stable 2.x Nacos Server
       run: |      
-        wget https://github.com/alibaba/nacos/releases/download/2.0.4/nacos-server-2.0.4.tar.gz
-        tar -xvf nacos-server-2.0.4.tar.gz
+        wget https://github.com/alibaba/nacos/releases/download/2.1.0/nacos-server-2.1.0.tar.gz
+        tar -xvf nacos-server-2.1.0.tar.gz
         cd nacos/bin
         # sed -i 's/nacos.core.auth.enabled=false/nacos.core.auth.enabled=true/g' ../conf/application.properties
         chmod 755 startup.sh
diff --git a/.github/workflows/build_Unstable.yml b/.github/workflows/build_Unstable.yml
index 6b60a97..f5896a2 100644
--- a/.github/workflows/build_Unstable.yml
+++ b/.github/workflows/build_Unstable.yml
@@ -28,8 +28,8 @@ jobs:
       run: java -version  
     - name: Setup Unstable Nacos Server
       run: |
-        wget https://github.com/alibaba/nacos/releases/download/2.1.0/nacos-server-2.1.0.tar.gz
-        tar -xvf nacos-server-2.1.0.tar.gz
+        wget https://github.com/alibaba/nacos/releases/download/2.1.1/nacos-server-2.1.1.tar.gz
+        tar -xvf nacos-server-2.1.1.tar.gz
         cd nacos/bin
         # sed -i 's/nacos.core.auth.enabled=false/nacos.core.auth.enabled=true/g' ../conf/application.properties
         sed -i 's/Xms512m/Xms1024m/g' startup.sh
diff --git a/README.md b/README.md
index 1df8557..4e35b43 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,18 @@ https://nacos-sdk-csharp.readthedocs.io/en/latest/
 1. Configure in `Program.cs`
 
 ```cs
+// after v1.3.3, we can use UseNacosConfig to simplify
+public static IHostBuilder CreateHostBuilder(string[] args) =>
+    Host.CreateDefaultBuilder(args)
+        .UseNacosConfig(section: "NacosConfig", parser: null logAction: null)
+        // .UseNacosConfig(section: "NacosConfig", parser: Nacos.YamlParser.YamlConfigurationStringParser.Instance logAction: null)
+        // .UseNacosConfig(section: "NacosConfig", parser: Nacos.IniParser.IniConfigurationStringParser.Instance logAction: null)       
+        .ConfigureWebHostDefaults(webBuilder =>
+        {
+            webBuilder.UseStartup<Startup>();
+        });
+
+// before v1.3.3
 public static IHostBuilder CreateHostBuilder(string[] args) =>
     Host.CreateDefaultBuilder(args)
         .ConfigureAppConfiguration((context, builder) =>
@@ -55,7 +67,7 @@ public static IHostBuilder CreateHostBuilder(string[] args) =>
         .ConfigureWebHostDefaults(webBuilder =>
         {
             webBuilder.UseStartup<Startup>();
-        })
+        });
 ```
 
 2. Modify `appsettings.json`
diff --git a/README.zh-cn.md b/README.zh-cn.md
index ad0339a..96e2583 100644
--- a/README.zh-cn.md
+++ b/README.zh-cn.md
@@ -41,6 +41,18 @@ https://nacos-sdk-csharp.readthedocs.io/en/latest/
 1. 在 `Program.cs` 进行如下配置
 
 ```cs
+// v1.3.3 版本之后, 可以用 UseNacosConfig 来简化
+public static IHostBuilder CreateHostBuilder(string[] args) =>
+    Host.CreateDefaultBuilder(args)
+        .UseNacosConfig(section: "NacosConfig", parser: null logAction: null)
+        // .UseNacosConfig(section: "NacosConfig", parser: Nacos.YamlParser.YamlConfigurationStringParser.Instance logAction: null)
+        // .UseNacosConfig(section: "NacosConfig", parser: Nacos.IniParser.IniConfigurationStringParser.Instance logAction: null)       
+        .ConfigureWebHostDefaults(webBuilder =>
+        {
+            webBuilder.UseStartup<Startup>();
+        });
+
+// v1.3.3 版本之前
 public static IHostBuilder CreateHostBuilder(string[] args) =>
     Host.CreateDefaultBuilder(args)
         .ConfigureAppConfiguration((context, builder) =>
@@ -57,7 +69,7 @@ public static IHostBuilder CreateHostBuilder(string[] args) =>
         .ConfigureWebHostDefaults(webBuilder =>
         {
             webBuilder.UseStartup<Startup>();
-        })
+        });
 ```
 
 2. 修改 `appsettings.json`
diff --git a/docs/guide/faq.rst b/docs/guide/faq.rst
index e9d87e4..755e6ba 100644
--- a/docs/guide/faq.rst
+++ b/docs/guide/faq.rst
@@ -28,3 +28,14 @@ SDK 在 v1.x 版本之后，就是默认用 grpc 的方式和 nacos server 对
 针对 b 的情况，需要把 9848 暴露出来。
 
 如果修改了默认端口或者是通过环境变量设置了偏移，自行调整对应端口，参考 https://nacos.io/zh-cn/docs/2.0.0-compatibility.html
+
+3. nacos-sdk-csharp 版本与 nacos server 版本关系
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+nacos server 目前主要有 1.x 版本和 2.x 版本
+
+nacos-sdk-csharp 有 0.x unofficial 版本 和 1.x 版本
+
+nacos-sdk-csharp 0.x unofficial 版本 只能应用于 nacos server 1.x 版本
+
+nacos-sdk-csharp 1.x 版本 可以同时应用于 nacos server 1.x 版本 和 2.x 版本