diff --git a/docs/readthedocs/source/_static/js/chronos_installation_guide.js b/docs/readthedocs/source/_static/js/chronos_installation_guide.js
index e146cced..40c1c42e 100644
--- a/docs/readthedocs/source/_static/js/chronos_installation_guide.js
+++ b/docs/readthedocs/source/_static/js/chronos_installation_guide.js
@@ -92,13 +92,6 @@ function refresh_cmd(){
         enable(hardwares);
         enable(automls);
 
-    if(version!="nightly"){
-        disable(inferences);
-    }
-    else{
-        enable(inferences);
-    }
-
         //change cmd according to different choices
         if(model=="Deep_learning_models"){
             if(ai=="pytorch"){
@@ -108,12 +101,7 @@ function refresh_cmd(){
                             if(version=="nightly"){
                                 cmd="pip install --pre --upgrade bigdl-chronos[pytorch]";
                             }else if(version=="stable"){
-                                if(os=="win"){
-                                    cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
-                                }
-                                else{
-                                    cmd="pip install bigdl-chronos[pytorch]";
-                                }
+                                cmd="pip install bigdl-chronos[pytorch]";
                             }
                         }else if(hardware=="cluster"){
                             if(os=="win"){
@@ -132,12 +120,7 @@ function refresh_cmd(){
                             if(version=="nightly"){
                                 cmd="pip install --pre --upgrade bigdl-chronos[pytorch,automl]";
                             }else if(version=="stable"){
-                                if(os=="win"){
-                                    cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
-                                }
-                                else{
-                                    cmd="pip install bigdl-chronos[pytorch,automl]";
-                                }
+                                cmd="pip install bigdl-chronos[pytorch,automl]";
                             }
                         }else if(hardware=="cluster"){
                             if(os=="win"){
@@ -158,12 +141,7 @@ function refresh_cmd(){
                             if(version=="nightly"){
                                 cmd="pip install --pre --upgrade bigdl-chronos[pytorch,inference]";
                             }else if(version=="stable"){
-                                if(os=="win"){
-                                    cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
-                                }
-                                else{
-                                    cmd="pip install bigdl-chronos[pytorch]";
-                                }
+                                cmd="pip install bigdl-chronos[pytorch,inference]";
                             }
                         }else if(hardware=="cluster"){
                             if(os=="win"){
@@ -173,7 +151,7 @@ function refresh_cmd(){
                                 if(version=="nightly"){
                                     cmd="pip install --pre --upgrade bigdl-chronos[pytorch,distributed,inference]";
                                 }else if(version=="stable"){
-                                    cmd="pip install bigdl-chronos[pytorch,distributed]";
+                                    cmd="pip install bigdl-chronos[pytorch,distributed,inference]";
                                 }
                             }
                         }
@@ -182,12 +160,7 @@ function refresh_cmd(){
                             if(version=="nightly"){
                                 cmd="pip install --pre --upgrade bigdl-chronos[pytorch,automl,inference]";
                             }else if(version=="stable"){
-                                if(os=="win"){
-                                    cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
-                                }
-                                else{
-                                    cmd="pip install bigdl-chronos[pytorch,automl]";
-                                }
+                                cmd="pip install bigdl-chronos[pytorch,automl,inference]";
                             }
                         }else if(hardware=="cluster"){
                             if(os=="win"){
@@ -210,12 +183,7 @@ function refresh_cmd(){
                             if(version=="nightly"){
                                 cmd="pip install --pre --upgrade bigdl-chronos[tensorflow]";
                             }else if(version=="stable"){
-                                if(os=="win"){
-                                    cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
-                                }
-                                else{
-                                    cmd="Please refer to <a href=' https://bigdl.readthedocs.io/en/v2.1.0/doc/Chronos/Overview/chronos.html#tensorflow-backend'>tensorflow installation guide.</a>";
-                                }
+                                cmd="pip install bigdl-chronos[tensorflow]";
                             }
                         }else if(hardware=="cluster"){
                             if(os=="win"){
@@ -225,7 +193,7 @@ function refresh_cmd(){
                                 if(version=="nightly"){
                                     cmd="pip install --pre --upgrade bigdl-chronos[tensorflow,distributed]";
                                 }else if(version=="stable"){
-                                    cmd="Please refer to <a href=' https://bigdl.readthedocs.io/en/v2.1.0/doc/Chronos/Overview/chronos.html#tensorflow-backend'>tensorflow installation guide.</a>";
+                                    cmd="pip install bigdl-chronos[tensorflow,distributed]";
                                 }
                             }
                         }
@@ -234,12 +202,7 @@ function refresh_cmd(){
                             if(version=="nightly"){
                                 cmd="pip install --pre --upgrade bigdl-chronos[tensorflow,automl]";
                             }else if(version=="stable"){
-                                if(os=="win"){
-                                    cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
-                                }
-                                else{
-                                    cmd="Please refer to <a href=' https://bigdl.readthedocs.io/en/v2.1.0/doc/Chronos/Overview/chronos.html#tensorflow-backend'>tensorflow installation guide.</a>";
-                                }
+                                cmd="pip install bigdl-chronos[tensorflow,automl]";
                             }
                         }else if(hardware=="cluster"){
                             if(os=="win"){
@@ -249,7 +212,7 @@ function refresh_cmd(){
                                 if(version=="nightly"){
                                     cmd="pip install --pre --upgrade bigdl-chronos[tensorflow,distributed,automl]";
                                 }else if(version=="stable"){
-                                    cmd="Please refer to <a href=' https://bigdl.readthedocs.io/en/v2.1.0/doc/Chronos/Overview/chronos.html#tensorflow-backend'>tensorflow installation guide.</a>";
+                                    cmd="pip install bigdl-chronos[tensorflow,distributed,automl]";
                                 }
                             }
                         }
@@ -260,12 +223,7 @@ function refresh_cmd(){
                             if(version=="nightly"){
                                 cmd="pip install --pre --upgrade bigdl-chronos[tensorflow,inference]";
                             }else if(version=="stable"){
-                                if(os=="win"){
-                                    cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
-                                }
-                                else{
-                                    cmd="Please refer to <a href=' https://bigdl.readthedocs.io/en/v2.1.0/doc/Chronos/Overview/chronos.html#tensorflow-backend'>tensorflow installation guide.</a>";
-                                }
+                                cmd="pip install bigdl-chronos[tensorflow,inference]";
                             }
                         }else if(hardware=="cluster"){
                             if(os=="win"){
@@ -275,7 +233,7 @@ function refresh_cmd(){
                                 if(version=="nightly"){
                                     cmd="pip install --pre --upgrade bigdl-chronos[tensorflow,distributed,inference]";
                                 }else if(version=="stable"){
-                                    cmd="Please refer to <a href=' https://bigdl.readthedocs.io/en/v2.1.0/doc/Chronos/Overview/chronos.html#tensorflow-backend'>tensorflow installation guide.</a>";
+                                    cmd="pip install bigdl-chronos[tensorflow,distributed,inference]";
                                 }
                             }
                         }
@@ -284,12 +242,7 @@ function refresh_cmd(){
                             if(version=="nightly"){
                                 cmd="pip install --pre --upgrade bigdl-chronos[tensorflow,automl,inference]";
                             }else if(version=="stable"){
-                                if(os=="win"){
-                                    cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
-                                }
-                                else{
-                                    cmd="Please refer to <a href=' https://bigdl.readthedocs.io/en/v2.1.0/doc/Chronos/Overview/chronos.html#tensorflow-backend'>tensorflow installation guide.</a>";
-                                }
+                                cmd="pip install bigdl-chronos[tensorflow,automl,inference]";
                             }
                         }else if(hardware=="cluster"){
                             if(os=="win"){
@@ -299,7 +252,7 @@ function refresh_cmd(){
                                 if(version=="nightly"){
                                     cmd="pip install --pre --upgrade bigdl-chronos[tensorflow,distributed,automl,inference]";
                                 }else if(version=="stable"){
-                                    cmd="Please refer to <a href=' https://bigdl.readthedocs.io/en/v2.1.0/doc/Chronos/Overview/chronos.html#tensorflow-backend'>tensorflow installation guide.</a>";
+                                    cmd="pip install bigdl-chronos[tensorflow,distributed,automl,inference]";
                                 }
                             }
                         }
@@ -314,7 +267,7 @@ function refresh_cmd(){
                             if(version=="nightly"){
                                 cmd="pip install --pre --upgrade bigdl-chronos; pip install prophet==1.1.0";
                             }else if(version=="stable"){
-                                cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
+                                cmd="pip install bigdl-chronos; pip install prophet==1.1.0";
                             }
                         }else if(hardware=="cluster"){
                             cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
@@ -367,7 +320,7 @@ function refresh_cmd(){
                             if(version=="nightly"){
                                 cmd="pip install --pre --upgrade bigdl-chronos; pip install prophet==1.1.0";
                             }else if(version=="stable"){
-                                cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
+                                cmd="pip install bigdl-chronos; pip install prophet==1.1.0";
                             }
                         }else if(hardware=="cluster"){
                             cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
@@ -421,12 +374,7 @@ function refresh_cmd(){
                         if(version=="nightly"){
                             cmd="pip install --pre --upgrade bigdl-chronos; pip install pmdarima==1.8.5";
                         }else if(version=="stable"){
-                            if(os=="win"){
-                                cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
-                            }
-                            else{
-                                cmd="pip install bigdl-chronos; pip install pmdarima==1.8.5";
-                            }
+                            cmd="pip install bigdl-chronos; pip install pmdarima==1.8.5";
                         }
                     }else if(hardware=="cluster"){
                         if(os=="win"){
@@ -466,12 +414,7 @@ function refresh_cmd(){
                         if(version=="nightly"){
                             cmd="pip install --pre --upgrade bigdl-chronos; pip install pmdarima==1.8.5";
                         }else if(version=="stable"){
-                            if(os=="win"){
-                                cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
-                            }
-                            else{
-                                cmd="pip install bigdl-chronos; pip install pmdarima==1.8.5";
-                            }
+                            cmd="pip install bigdl-chronos; pip install pmdarima==1.8.5";
                         }
                     }else if(hardware=="cluster"){
                         if(os=="win"){
@@ -510,12 +453,7 @@ function refresh_cmd(){
             if(version=="nightly"){
                 cmd="pip install --pre --upgrade bigdl-chronos";
             }else if(version=="stable"){
-                if(os=="win"){
-                    cmd="Not supported, please refer to <a href='https://bigdl.readthedocs.io/en/latest/doc/Chronos/Howto/windows_guide.html'>windows_guide.</a>";
-                }
-                else{
-                    cmd="pip install bigdl-chronos";
-                }   
+                cmd="pip install bigdl-chronos"; 
             }
         }
     }
diff --git a/docs/readthedocs/source/doc/Chronos/Overview/install.md b/docs/readthedocs/source/doc/Chronos/Overview/install.md
index f83765c6..84e2dbd3 100644
--- a/docs/readthedocs/source/doc/Chronos/Overview/install.md
+++ b/docs/readthedocs/source/doc/Chronos/Overview/install.md
@@ -97,10 +97,9 @@ Select your preferences in the panel below to find the proper install command. T
                 <tr>
                     <td colspan="1">Version</td>
                     <td colspan="2"><button id="nightly"
-                            title="For users would like to try chronos's latest feature">Nightly (2.2.0b)</button>
-                    </td>
+                            title="For users would like to try chronos's latest feature">Nightly</button></td>
                     <td colspan="2"><button id="stable"
-                            title="For users would like to deploy chronos in their production">Stable (2.1.0)</button></td>
+                            title="For users would like to deploy chronos in their production">Stable</button></td>
                 </tr>
 
                 <tr class="taller_tr">