diff --git a/content/en/SUMMARY.md b/content/en/SUMMARY.md
index 3123cde..f3ebe5a 100755
--- a/content/en/SUMMARY.md
+++ b/content/en/SUMMARY.md
@@ -67,5 +67,6 @@
    * [2.22](change_log/2.22.md)
    * [2.23](change_log/2.23.md)
    * [2.25](change_log/2.25.md)
+   * [2.26](change_log/2.26.md)
 
 
diff --git a/content/en/change_log/2.26.md b/content/en/change_log/2.26.md
new file mode 100644
index 0000000..c986965
--- /dev/null
+++ b/content/en/change_log/2.26.md
@@ -0,0 +1,4 @@
+# 2018/08/23
+
+## New Features
+1. Users are allowed to compose a customized HTTP request in Trigger & Action. This request will be sent out to the specified server when the trigger criteria are met. [more information](../tutorial/setting_notification)
\ No newline at end of file
diff --git a/content/en/change_log/README.md b/content/en/change_log/README.md
index 5c06a53..3e2bcab 100755
--- a/content/en/change_log/README.md
+++ b/content/en/change_log/README.md
@@ -1,5 +1,11 @@
 # MCS Change log Summary
 
+## 2018/08/23
+
+### v2.26
+
+[Users are allowed to compose a customized HTTP request in Trigger & Action.](./2.26)
+
 
 ## 2018/07/25
 
diff --git a/content/en/images/Trigger/img_trigger_08.png b/content/en/images/Trigger/img_trigger_08.png
index 96ce6be..bd7760c 100644
Binary files a/content/en/images/Trigger/img_trigger_08.png and b/content/en/images/Trigger/img_trigger_08.png differ
diff --git a/content/en/tutorial/setting_notification.md b/content/en/tutorial/setting_notification.md
index 47bcf7e..4f60319 100755
--- a/content/en/tutorial/setting_notification.md
+++ b/content/en/tutorial/setting_notification.md
@@ -87,11 +87,13 @@ In the **Trigger & Action** tab in the test device page, expand the **Manage you
 
 ### Configuring the Webhook
 
-There is no extra setting for webhook. To use webhook trigger, you only have to select the **webhook** as the action in the trigger & action setting and provide the callback URL that MCS makes an HTTP request to.
+The webhook action allows you to compose a custom HTTP request to send to a server. 
+
+To use webhook trigger, you only need select the **webhook** as the action type in the trigger & action setting and then specify the server **URL**, **request method**, **HTTP headers** and **HTTP body**. You can use the pre-defined variables in URL, value of HTTP header and Body fields.
 
 ![](../images/Trigger/img_trigger_08.png)
 
-There is a Test button for you to test if the trigger has been sent to the URL. The device name, deviceId and the triggered value will be sent to the triggered URL.
+There is a Send webhook button for you to test if this HTTP request is able to sent to the destination along with the correct settings. 
 
 
 ### Configuring the Console Alert
diff --git a/content/zh-CN/SUMMARY.md b/content/zh-CN/SUMMARY.md
index 9476ed1..fb65a38 100755
--- a/content/zh-CN/SUMMARY.md
+++ b/content/zh-CN/SUMMARY.md
@@ -67,4 +67,5 @@
    * [2.22](change_log/2.22.md)
    * [2.23](change_log/2.23.md)
    * [2.25](change_log/2.25.md)
+   * [2.26](change_log/2.26.md)
 
diff --git a/content/zh-CN/change_log/2.26.md b/content/zh-CN/change_log/2.26.md
new file mode 100644
index 0000000..1b6229f
--- /dev/null
+++ b/content/zh-CN/change_log/2.26.md
@@ -0,0 +1,4 @@
+# 2018/08/23
+
+## 新功能
+1. 允许用户在 Trigger＆Action 中编写自定义的 HTTP 请求。当触发条件符合时，此请求将发送到指定的服务器。[更多详情](../tutorial/setting_notification)
\ No newline at end of file
diff --git a/content/zh-CN/change_log/README.md b/content/zh-CN/change_log/README.md
index ccde15c..77d0b1c 100755
--- a/content/zh-CN/change_log/README.md
+++ b/content/zh-CN/change_log/README.md
@@ -1,5 +1,11 @@
 # MCS 更新日志总览
 
+## 2018/08/23
+
+### v2.26
+
+[允许用户在 Trigger＆Action 中编写自定义的 HTTP 请求。](./2.26)
+
 ## 2018/07/25
 
 ### v2.25
diff --git a/content/zh-CN/images/Trigger/img_trigger_08.png b/content/zh-CN/images/Trigger/img_trigger_08.png
index 1a43eb8..bd7760c 100644
Binary files a/content/zh-CN/images/Trigger/img_trigger_08.png and b/content/zh-CN/images/Trigger/img_trigger_08.png differ
diff --git a/content/zh-CN/tutorial/setting_notification.md b/content/zh-CN/tutorial/setting_notification.md
index 58eeb2c..68ff5d4 100755
--- a/content/zh-CN/tutorial/setting_notification.md
+++ b/content/zh-CN/tutorial/setting_notification.md
@@ -84,11 +84,13 @@
 
 ### 设置 Webhook 
 
-要使用 webhook 触发动作，您只需要在设定触发条件时，选择 webhook 作为触发动作，并且输入您欲收到此触发通知之网址。当触发条件成立时，MCS 会发送一个 HTTP 请求到您提供的网址。
+触发动作中的 webhook，让您可以自行组合一个 HTTP 的请求，并在触发条件成立后发送到指定的服务器。
+
+要使用此功能，您只需要在设定触发条件时，选择**webhook** 作为触发动作，并且指定服务器**网址**、**请求方法**、**HTTP 标头**与**请求内文**。此外，您也可以在网址、标头的值以及请求内文中使用系统预设的变数。（详细用法请参考后面章节）
 
 ![](../images/Trigger/img_trigger_08.png)
 
-当您选择 webhook 触发动作后，您可以使用测试按钮，来测试是否通知有被送出。送出之资讯包含 装置名称, device ID 和触发值。
+当您选择 webhook 触发动作后，您可以使用测试按钮，来测试此 HTTP 请求是否有正确的被送出。
 
 ### 设定网页警报
 
diff --git a/content/zh-TW/SUMMARY.md b/content/zh-TW/SUMMARY.md
index 6a3c429..00d755f 100755
--- a/content/zh-TW/SUMMARY.md
+++ b/content/zh-TW/SUMMARY.md
@@ -67,4 +67,5 @@
    * [2.22](change_log/2.22.md)
    * [2.23](change_log/2.23.md)
    * [2.25](change_log/2.25.md)
+   * [2.26](change_log/2.26.md)
 
diff --git a/content/zh-TW/change_log/2.26.md b/content/zh-TW/change_log/2.26.md
new file mode 100644
index 0000000..0dea587
--- /dev/null
+++ b/content/zh-TW/change_log/2.26.md
@@ -0,0 +1,4 @@
+# 2018/08/23
+
+## 新功能
+1. 允許用戶在 Trigger＆Action 中編寫自定義的 HTTP 請求。當觸發條件符合時，此請求將發送到指定的服務器。[更多詳情](../tutorial/setting_notification)
\ No newline at end of file
diff --git a/content/zh-TW/change_log/README.md b/content/zh-TW/change_log/README.md
index 14bd415..719f5db 100755
--- a/content/zh-TW/change_log/README.md
+++ b/content/zh-TW/change_log/README.md
@@ -1,5 +1,10 @@
 # MCS 更新日誌總覽
 
+## 2018/08/23
+
+### v2.26
+
+[允許用戶在 Trigger＆Action 中編寫自定義的 HTTP 請求。](./2.26)
 
 ## 2018/07/25
 
diff --git a/content/zh-TW/images/Trigger/img_trigger_08.png b/content/zh-TW/images/Trigger/img_trigger_08.png
index 6b267ec..bd7760c 100644
Binary files a/content/zh-TW/images/Trigger/img_trigger_08.png and b/content/zh-TW/images/Trigger/img_trigger_08.png differ
diff --git a/content/zh-TW/tutorial/setting_notification.md b/content/zh-TW/tutorial/setting_notification.md
index caa8126..ae2f362 100755
--- a/content/zh-TW/tutorial/setting_notification.md
+++ b/content/zh-TW/tutorial/setting_notification.md
@@ -83,11 +83,13 @@
 
 ### 設定 Webhook 
 
-要使用 webhook 觸發動作，您只需要在設定觸發條件時，選擇 webhook 作為觸發動作，並且輸入您欲收到此觸發通知之網址。當觸發條件成立時，MCS 會發送一個 HTTP 請求到您提供的網址。
+觸發動作中的 webhook，讓您可以自行組合一個 HTTP 的請求，並在觸發條件成立後發送到指定的服務器。
+
+要使用此功能，您只需要在設定觸發條件時，選擇 **webhook** 作為觸發動作，並且指定服務器**網址**、**請求方法**、**HTTP 標頭**與**請求內文**。此外，您也可以在網址、標頭的值以及請求內文中使用系統預設的變數。（詳細用法請參考後面章節）
 
 ![](../images/Trigger/img_trigger_08.png)
 
-當您選擇 webhook 觸發動作後，您可以使用測試按鈕，來測試是否通知有被送出。送出之資訊包含 裝置名稱, device ID 和觸發值。
+當您選擇 webhook 觸發動作後，您可以使用測試按鈕，來測試此 HTTP 請求是否有正確的被送出。
 
 ### 設定網頁警告