Changelog: update for 2.4.3 (#11832)

CHANGELOG.en-US.md

 ## Changelog
 
+### 2.4.3
+
+*2018-07-03*
+
+- Fixed `allow-drop` not working properly when Tree nodes have a custom height, #11797
+- Now you can pass a parameter to the `clearValidate` method of Form, specifying which FormItems' validation results need to be cleared, #11821
+- Added `distinguishCancelAndClose` attribute for MessageBox, #11831
+
 ### 2.4.2
 
 *2018-06-26*

CHANGELOG.es.md

 ## Changelog
 
+### 2.4.3
+
+*2018-07-03*
+
+- Fixed `allow-drop` not working properly when Tree nodes have a custom height, #11797
+- Now you can pass a parameter to the `clearValidate` method of Form, specifying which FormItems' validation results need to be cleared, #11821
+- Added `distinguishCancelAndClose` attribute for MessageBox, #11831
+
 ### 2.4.2
 
 *2018-06-26*

CHANGELOG.zh-CN.md

 ## 更新日志
 
+### 2.4.3
+
+*2018-07-03*
+
+- 修复当自定义 Tree 节点高度时，`allow-drop` 不能正常工作的问题，#11797
+- 现在 Form 的 `clearValidate` 方法支持传入参数，指定需要清空校验结果的 FormItem，#11821
+- 新增 MessageBox 的 `distinguishCancelAndClose` 属性，#11831
+
 ### 2.4.2
 
 *2018-06-26*

README.md

@@ -158,7 +158,7 @@ Spanish documentation is made possible by these community developers:
 ## Donation
 If you find Element useful, you can buy us a cup of coffee
 
-<img width="650" src="https://user-images.githubusercontent.com/10095631/40616626-568895b2-62be-11e8-9fc3-dc54a2892515.jpg" alt="donation">
+<img width="650" src="https://user-images.githubusercontent.com/10095631/42198577-587063dc-7ebb-11e8-892b-91e08f99ce1e.jpg" alt="donation">
 
 ## Backers