Changelog: update for 2.4.1 (#11538)

CHANGELOG.en-US.md

 ## Changelog
 
+### 2.4.1
+
+*2018-06-08*
+
+- Removed Autocomplete's duplicate type declaration, #11388
+- Fixed Select's dropdown arrow style in FireFox when nested in Form, #11427
+- Fixed clear icon of Select still showing when the initial value is `null`, #11460
+- Fixed disabled radio showing box-shadow when clicked, #11462
+- Added `iconClass` attribute for MessageBox, #11499
+- Added `stretch` attribute for Tabs, #11476
+- Fixed rendering order issue of TabPane when Tabs is `lazy`, #11461
+- Fixed Table not retaining current highlight row when expanded, #11464
+- Fixed focusing state when `before-leave` returns a resolved promise, #11386
+- Fixed disabled Popover still creating poppers, #11426
+- Fixed Tree's endless loop when a new node is added in lazy mode, #11430 (by @wangjingf)
+- Added `closed` event for Dialog, #11490
+
 ### 2.4.0 Fullerene
 
 *2018-05-28*

CHANGELOG.es.md

 ## Changelog
 
+### 2.4.1
+
+*2018-06-08*
+
+- Removed Autocomplete's duplicate type declaration, #11388
+- Fixed Select's dropdown arrow style in FireFox when nested in Form, #11427
+- Fixed clear icon of Select still showing when the initial value is `null`, #11460
+- Fixed disabled radio showing box-shadow when clicked, #11462
+- Added `iconClass` attribute for MessageBox, #11499
+- Added `stretch` attribute for Tabs, #11476
+- Fixed rendering order issue of TabPane when Tabs is `lazy`, #11461
+- Fixed Table not retaining current highlight row when expanded, #11464
+- Fixed focusing state when `before-leave` returns a resolved promise, #11386
+- Fixed disabled Popover still creating poppers, #11426
+- Fixed Tree's endless loop when a new node is added in lazy mode, #11430 (by @wangjingf)
+- Added `closed` event for Dialog, #11490
+
 ### 2.4.0 Fullerene
 
 *2018-05-28*

CHANGELOG.zh-CN.md

 ## 更新日志
 
+### 2.4.1
+
+*2018-06-08*
+
+- 移除 Autocomplete 的重复类型声明，#11388
+- 修复嵌套在 Form 内的 Select 在 FireFox 浏览器中下拉箭头错位的问题，#11427
+- 修复 Select 的初始值为 `null` 时仍然显示清除图标的问题，#11460
+- 修复禁用的 Radio 在点击时显示 box-shadow 的问题，#11462
+- 新增 MessageBox 的 `iconClass` 属性，#11499
+- 新增 Tabs 的 `stretch` 属性，#11476
+- 修复 Tabs 开启 `lazy` 时渲染顺序异常的问题，#11461
+- 修复 Table 展开行时无法保留选中行样式的问题，#11464
+- 修复 Tabs 调用 `before-leave` 并返回 Promise 的时候，Tabs 会存在 focus 状态的问题，#11386
+- 修复 Popover 禁用状态下创建弹出框的问题，#11426
+- 修复 Tree 在懒加载状态下添加新节点造成无限循环的问题，#11430 （by @wangjingf）
+- 新增 Dialog 的 `closed` 事件，#11490
+
 ### 2.4.0 Fullerene
 
 *2018-05-28*