sensorsdata
diff --git a/‎CHANGELOG.md‎
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diff --git a/‎package.json‎
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@@ -1,3 +1,7 @@
+## 1.14.21（2021-08-27）
+1.  优化
+    - `$SignUp` 事件去除 `$is_first_day` 属性
+
 ## 1.14.20（2021-08-20）
 1.  新增
     - 新增采集页面浏览时长事件 `$MPPageLeave`
 
@@ -1,6 +1,6 @@
 {
   "name": "sa-sdk-miniprogram",
-  "version": "1.14.20",
+  "version": "1.14.21",
   "description": "sensorsdata miniprogram sdk",
   "main": "sensorsdata.min.js",
   "scripts": {
Original file line number	Diff line number	Diff line change
`@@ -1,6 +1,6 @@`
`1`	`1`	`{`
`2`	`2`	`"name": "sa-sdk-miniprogram",`
`3`		`- "version": "1.14.20",`
	`3`	`+ "version": "1.14.21",`
`4`	`4`	`"description": "sensorsdata miniprogram sdk",`
`5`	`5`	`"main": "sensorsdata.min.js",`
`6`	`6`	`"scripts": {`