diff --git a/Changelog.md b/Changelog.md
index dba3f49..64214b1 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,12 +1,23 @@
 # Not released
 
+
+
+# Released
+
 # 8.31.2
 
+ElectronNET.CLI:
+* New Feature: Deactivate PublishReadyToRun for build or start [\#395](https://github.com/ElectronNET/Electron.NET/issues/395)
+  
+   `electronize build /target win /PublishReadyToRun false`  
+   `electronize start /PublishReadyToRun false`   
+* Fixed bug: Application window doesn't open after packaging  [\#387](https://github.com/ElectronNET/Electron.NET/issues/387)
+
 ElectronNET.API:
 
 * New Feature: NativeImage Support (thanks [ThrDev](https://github.com/ThrDev)) [\#394](https://github.com/ElectronNET/Electron.NET/pull/394)  
+* New Feature: Update menu items for context menu and system tray on-the-fly. [\#270](https://github.com/ElectronNET/Electron.NET/pull/270)  
 
-# Released
 
 # 8.31.1
 
diff --git a/ElectronNET.API/Entities/MenuItem.cs b/ElectronNET.API/Entities/MenuItem.cs
index 9ad7d5b..221bd05 100644
--- a/ElectronNET.API/Entities/MenuItem.cs
+++ b/ElectronNET.API/Entities/MenuItem.cs
@@ -69,13 +69,11 @@ namespace ElectronNET.API.Entities
         /// <summary>
         /// If false, the menu item will be greyed out and unclickable.
         /// </summary>
-        [DefaultValue(true)]
         public bool Enabled { get; set; } = true;
 
         /// <summary>
         /// If false, the menu item will be entirely hidden.
         /// </summary>
-        [DefaultValue(true)]
         public bool Visible { get; set; } = true;
 
         /// <summary>
diff --git a/ElectronNET.API/Menu.cs b/ElectronNET.API/Menu.cs
index 0c7d31c..00d7fb5 100644
--- a/ElectronNET.API/Menu.cs
+++ b/ElectronNET.API/Menu.cs
@@ -82,25 +82,25 @@ namespace ElectronNET.API
         /// <param name="menuItems">The menu items.</param>
         public void SetContextMenu(BrowserWindow browserWindow, MenuItem[] menuItems)
         {
+            menuItems.AddMenuItemsId();
+            BridgeConnector.Socket.Emit("menu-setContextMenu", browserWindow.Id, JArray.FromObject(menuItems, _jsonSerializer));
+
             if (!_contextMenuItems.ContainsKey(browserWindow.Id))
             {
-                menuItems.AddMenuItemsId();
-                BridgeConnector.Socket.Emit("menu-setContextMenu", browserWindow.Id, JArray.FromObject(menuItems, _jsonSerializer));
                 _contextMenuItems.Add(browserWindow.Id, menuItems.ToList());
-
                 var x = _contextMenuItems.ToDictionary(kv => kv.Key, kv => kv.Value.AsReadOnly());
                 ContextMenuItems = new ReadOnlyDictionary<int, ReadOnlyCollection<MenuItem>>(x);
-
-                BridgeConnector.Socket.Off("contextMenuItemClicked");
-                BridgeConnector.Socket.On("contextMenuItemClicked", (results) =>
-                {
-                    var id = ((JArray)results).First.ToString();
-                    var browserWindowId = (int)((JArray)results).Last;
-
-                    MenuItem menuItem = _contextMenuItems[browserWindowId].GetMenuItem(id);
-                    menuItem.Click?.Invoke();
-                });
             }
+
+            BridgeConnector.Socket.Off("contextMenuItemClicked");
+            BridgeConnector.Socket.On("contextMenuItemClicked", (results) =>
+            {
+                var id = ((JArray)results).First.ToString();
+                var browserWindowId = (int)((JArray)results).Last;
+
+                MenuItem menuItem = _contextMenuItems[browserWindowId].GetMenuItem(id);
+                menuItem.Click?.Invoke();
+            });
         }
 
         /// <summary>
@@ -115,8 +115,7 @@ namespace ElectronNET.API
         private JsonSerializer _jsonSerializer = new JsonSerializer()
         {
             ContractResolver = new CamelCasePropertyNamesContractResolver(),
-            NullValueHandling = NullValueHandling.Ignore,
-            DefaultValueHandling = DefaultValueHandling.Ignore
+            NullValueHandling = NullValueHandling.Ignore
         };
     }
 }
diff --git a/ElectronNET.API/Tray.cs b/ElectronNET.API/Tray.cs
index d4170c2..2781a1f 100644
--- a/ElectronNET.API/Tray.cs
+++ b/ElectronNET.API/Tray.cs
@@ -252,6 +252,7 @@ namespace ElectronNET.API
         {
             menuItems.AddMenuItemsId();
             BridgeConnector.Socket.Emit("create-tray", image, JArray.FromObject(menuItems, _jsonSerializer));
+            _items.Clear();
             _items.AddRange(menuItems);
 
             BridgeConnector.Socket.Off("trayMenuItemClicked");
@@ -339,8 +340,7 @@ namespace ElectronNET.API
         private JsonSerializer _jsonSerializer = new JsonSerializer()
         {
             ContractResolver = new CamelCasePropertyNamesContractResolver(),
-            NullValueHandling = NullValueHandling.Ignore,
-            DefaultValueHandling = DefaultValueHandling.Ignore
+            NullValueHandling = NullValueHandling.Ignore
         };
     }
 }
diff --git a/ElectronNET.Host/api/menu.js b/ElectronNET.Host/api/menu.js
index f2ecaa9..6899535 100644
--- a/ElectronNET.Host/api/menu.js
+++ b/ElectronNET.Host/api/menu.js
@@ -9,10 +9,17 @@ module.exports = (socket) => {
         addContextMenuItemClickConnector(menu.items, browserWindowId, (id, browserWindowId) => {
             electronSocket.emit('contextMenuItemClicked', [id, browserWindowId]);
         });
-        contextMenuItems.push({
+        const index = contextMenuItems.findIndex(contextMenu => contextMenu.browserWindowId === browserWindowId);
+        const contextMenuItem = {
             menu: menu,
             browserWindowId: browserWindowId
-        });
+        };
+        if (index === -1) {
+            contextMenuItems.push(contextMenuItem);
+        }
+        else {
+            contextMenuItems[index] = contextMenuItem;
+        }
     });
     function addContextMenuItemClickConnector(menuItems, browserWindowId, callback) {
         menuItems.forEach((item) => {
diff --git a/ElectronNET.Host/api/menu.js.map b/ElectronNET.Host/api/menu.js.map
index f7932ed..27a41c2 100644
--- a/ElectronNET.Host/api/menu.js.map
+++ b/ElectronNET.Host/api/menu.js.map
@@ -1 +1 @@
-{"version":3,"file":"menu.js","sourceRoot":"","sources":["menu.ts"],"names":[],"mappings":";AAAA,uCAA+C;AAC/C,MAAM,gBAAgB,GAAG,EAAE,CAAC;AAC5B,IAAI,cAAc,CAAC;AAEnB,iBAAS,CAAC,MAAuB,EAAE,EAAE;IACjC,cAAc,GAAG,MAAM,CAAC;IACxB,MAAM,CAAC,EAAE,CAAC,qBAAqB,EAAE,CAAC,eAAe,EAAE,SAAS,EAAE,EAAE;QAC5D,MAAM,IAAI,GAAG,eAAI,CAAC,iBAAiB,CAAC,SAAS,CAAC,CAAC;QAE/C,gCAAgC,CAAC,IAAI,CAAC,KAAK,EAAE,eAAe,EAAE,CAAC,EAAE,EAAE,eAAe,EAAE,EAAE;YAClF,cAAc,CAAC,IAAI,CAAC,wBAAwB,EAAE,CAAC,EAAE,EAAE,eAAe,CAAC,CAAC,CAAC;QACzE,CAAC,CAAC,CAAC;QAEH,gBAAgB,CAAC,IAAI,CAAC;YAClB,IAAI,EAAE,IAAI;YACV,eAAe,EAAE,eAAe;SACnC,CAAC,CAAC;IACP,CAAC,CAAC,CAAC;IAEH,SAAS,gCAAgC,CAAC,SAAS,EAAE,eAAe,EAAE,QAAQ;QAC1E,SAAS,CAAC,OAAO,CAAC,CAAC,IAAI,EAAE,EAAE;YACvB,IAAI,IAAI,CAAC,OAAO,IAAI,IAAI,CAAC,OAAO,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,EAAE;gBAC/C,gCAAgC,CAAC,IAAI,CAAC,OAAO,CAAC,KAAK,EAAE,eAAe,EAAE,QAAQ,CAAC,CAAC;aACnF;YAED,IAAI,IAAI,IAAI,IAAI,IAAI,IAAI,CAAC,EAAE,EAAE;gBACzB,IAAI,CAAC,KAAK,GAAG,GAAG,EAAE,GAAG,QAAQ,CAAC,IAAI,CAAC,EAAE,EAAE,eAAe,CAAC,CAAC,CAAC,CAAC,CAAC;aAC9D;QACL,CAAC,CAAC,CAAC;IACP,CAAC;IAED,MAAM,CAAC,EAAE,CAAC,uBAAuB,EAAE,CAAC,eAAe,EAAE,EAAE;QACnD,gBAAgB,CAAC,OAAO,CAAC,CAAC,CAAC,EAAE;YACzB,IAAI,CAAC,CAAC,eAAe,KAAK,eAAe,EAAE;gBACvC,MAAM,aAAa,GAAG,wBAAa,CAAC,MAAM,CAAC,eAAe,CAAC,CAAC;gBAC5D,CAAC,CAAC,IAAI,CAAC,KAAK,CAAC,aAAa,CAAC,CAAC;aAC/B;QACL,CAAC,CAAC,CAAC;IACP,CAAC,CAAC,CAAC;IAEH,MAAM,CAAC,EAAE,CAAC,yBAAyB,EAAE,CAAC,SAAS,EAAE,EAAE;QAC/C,MAAM,IAAI,GAAG,eAAI,CAAC,iBAAiB,CAAC,SAAS,CAAC,CAAC;QAE/C,yBAAyB,CAAC,IAAI,CAAC,KAAK,EAAE,CAAC,EAAE,EAAE,EAAE;YACzC,cAAc,CAAC,IAAI,CAAC,iBAAiB,EAAE,EAAE,CAAC,CAAC;QAC/C,CAAC,CAAC,CAAC;QAEH,eAAI,CAAC,kBAAkB,CAAC,IAAI,CAAC,CAAC;IAClC,CAAC,CAAC,CAAC;IAEH,SAAS,yBAAyB,CAAC,SAAS,EAAE,QAAQ;QAClD,SAAS,CAAC,OAAO,CAAC,CAAC,IAAI,EAAE,EAAE;YACvB,IAAI,IAAI,CAAC,OAAO,IAAI,IAAI,CAAC,OAAO,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,EAAE;gBAC/C,yBAAyB,CAAC,IAAI,CAAC,OAAO,CAAC,KAAK,EAAE,QAAQ,CAAC,CAAC;aAC3D;YAED,IAAI,IAAI,IAAI,IAAI,IAAI,IAAI,CAAC,EAAE,EAAE;gBACzB,IAAI,CAAC,KAAK,GAAG,GAAG,EAAE,GAAG,QAAQ,CAAC,IAAI,CAAC,EAAE,CAAC,CAAC,CAAC,CAAC,CAAC;aAC7C;QACL,CAAC,CAAC,CAAC;IACP,CAAC;AACL,CAAC,CAAC"}
\ No newline at end of file
+{"version":3,"file":"menu.js","sourceRoot":"","sources":["menu.ts"],"names":[],"mappings":";AAAA,uCAA+C;AAC/C,MAAM,gBAAgB,GAAG,EAAE,CAAC;AAC5B,IAAI,cAAc,CAAC;AAEnB,iBAAS,CAAC,MAAuB,EAAE,EAAE;IACjC,cAAc,GAAG,MAAM,CAAC;IACxB,MAAM,CAAC,EAAE,CAAC,qBAAqB,EAAE,CAAC,eAAe,EAAE,SAAS,EAAE,EAAE;QAC5D,MAAM,IAAI,GAAG,eAAI,CAAC,iBAAiB,CAAC,SAAS,CAAC,CAAC;QAE/C,gCAAgC,CAAC,IAAI,CAAC,KAAK,EAAE,eAAe,EAAE,CAAC,EAAE,EAAE,eAAe,EAAE,EAAE;YAClF,cAAc,CAAC,IAAI,CAAC,wBAAwB,EAAE,CAAC,EAAE,EAAE,eAAe,CAAC,CAAC,CAAC;QACzE,CAAC,CAAC,CAAC;QAEH,MAAM,KAAK,GAAG,gBAAgB,CAAC,SAAS,CAAC,WAAW,CAAC,EAAE,CAAC,WAAW,CAAC,eAAe,KAAK,eAAe,CAAC,CAAC;QAEzG,MAAM,eAAe,GAAG;YACpB,IAAI,EAAE,IAAI;YACV,eAAe,EAAE,eAAe;SACnC,CAAC;QAEF,IAAI,KAAK,KAAK,CAAC,CAAC,EAAE;YACd,gBAAgB,CAAC,IAAI,CAAC,eAAe,CAAC,CAAC;SAC1C;aAAM;YACH,gBAAgB,CAAC,KAAK,CAAC,GAAG,eAAe,CAAC;SAC7C;IACL,CAAC,CAAC,CAAC;IAEH,SAAS,gCAAgC,CAAC,SAAS,EAAE,eAAe,EAAE,QAAQ;QAC1E,SAAS,CAAC,OAAO,CAAC,CAAC,IAAI,EAAE,EAAE;YACvB,IAAI,IAAI,CAAC,OAAO,IAAI,IAAI,CAAC,OAAO,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,EAAE;gBAC/C,gCAAgC,CAAC,IAAI,CAAC,OAAO,CAAC,KAAK,EAAE,eAAe,EAAE,QAAQ,CAAC,CAAC;aACnF;YAED,IAAI,IAAI,IAAI,IAAI,IAAI,IAAI,CAAC,EAAE,EAAE;gBACzB,IAAI,CAAC,KAAK,GAAG,GAAG,EAAE,GAAG,QAAQ,CAAC,IAAI,CAAC,EAAE,EAAE,eAAe,CAAC,CAAC,CAAC,CAAC,CAAC;aAC9D;QACL,CAAC,CAAC,CAAC;IACP,CAAC;IAED,MAAM,CAAC,EAAE,CAAC,uBAAuB,EAAE,CAAC,eAAe,EAAE,EAAE;QACnD,gBAAgB,CAAC,OAAO,CAAC,CAAC,CAAC,EAAE;YACzB,IAAI,CAAC,CAAC,eAAe,KAAK,eAAe,EAAE;gBACvC,MAAM,aAAa,GAAG,wBAAa,CAAC,MAAM,CAAC,eAAe,CAAC,CAAC;gBAC5D,CAAC,CAAC,IAAI,CAAC,KAAK,CAAC,aAAa,CAAC,CAAC;aAC/B;QACL,CAAC,CAAC,CAAC;IACP,CAAC,CAAC,CAAC;IAEH,MAAM,CAAC,EAAE,CAAC,yBAAyB,EAAE,CAAC,SAAS,EAAE,EAAE;QAC/C,MAAM,IAAI,GAAG,eAAI,CAAC,iBAAiB,CAAC,SAAS,CAAC,CAAC;QAE/C,yBAAyB,CAAC,IAAI,CAAC,KAAK,EAAE,CAAC,EAAE,EAAE,EAAE;YACzC,cAAc,CAAC,IAAI,CAAC,iBAAiB,EAAE,EAAE,CAAC,CAAC;QAC/C,CAAC,CAAC,CAAC;QAEH,eAAI,CAAC,kBAAkB,CAAC,IAAI,CAAC,CAAC;IAClC,CAAC,CAAC,CAAC;IAEH,SAAS,yBAAyB,CAAC,SAAS,EAAE,QAAQ;QAClD,SAAS,CAAC,OAAO,CAAC,CAAC,IAAI,EAAE,EAAE;YACvB,IAAI,IAAI,CAAC,OAAO,IAAI,IAAI,CAAC,OAAO,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,EAAE;gBAC/C,yBAAyB,CAAC,IAAI,CAAC,OAAO,CAAC,KAAK,EAAE,QAAQ,CAAC,CAAC;aAC3D;YAED,IAAI,IAAI,IAAI,IAAI,IAAI,IAAI,CAAC,EAAE,EAAE;gBACzB,IAAI,CAAC,KAAK,GAAG,GAAG,EAAE,GAAG,QAAQ,CAAC,IAAI,CAAC,EAAE,CAAC,CAAC,CAAC,CAAC,CAAC;aAC7C;QACL,CAAC,CAAC,CAAC;IACP,CAAC;AACL,CAAC,CAAC"}
\ No newline at end of file
diff --git a/ElectronNET.Host/api/menu.ts b/ElectronNET.Host/api/menu.ts
index 4d73c6f..c12523f 100644
--- a/ElectronNET.Host/api/menu.ts
+++ b/ElectronNET.Host/api/menu.ts
@@ -11,10 +11,18 @@ export = (socket: SocketIO.Socket) => {
             electronSocket.emit('contextMenuItemClicked', [id, browserWindowId]);
         });
 
-        contextMenuItems.push({
+        const index = contextMenuItems.findIndex(contextMenu => contextMenu.browserWindowId === browserWindowId);
+
+        const contextMenuItem = {
             menu: menu,
             browserWindowId: browserWindowId
-        });
+        };
+
+        if (index === -1) {
+            contextMenuItems.push(contextMenuItem);
+        } else {
+            contextMenuItems[index] = contextMenuItem;
+        }
     });
 
     function addContextMenuItemClickConnector(menuItems, browserWindowId, callback) {
diff --git a/buildReleaseNuGetPackages.cmd b/buildReleaseNuGetPackages.cmd
index f184f6d..cc7e410 100644
--- a/buildReleaseNuGetPackages.cmd
+++ b/buildReleaseNuGetPackages.cmd
@@ -1,4 +1,4 @@
-set ENETVER=8.31.1
+set ENETVER=8.31.2
 echo "Start building Electron.NET dev stack..."
 echo "Restore & Build API"
 cd ElectronNet.API