Changelog: update for 2.3.6 (#10823)

CHANGELOG.en-US.md

 ## Changelog
 
+### 2.3.6
+
+*2018-04-21*
+
+- Fixed wrong behavior of Tree's `allow-drop` callback when `type` parameter is used, #10821
+- Now you can properly enter keywords in filterable single Select in IE11, #10822
+- Fixed single Select incorrectly triggering `blur` event after clicking an option, #10822
+
 ### 2.3.5
 
 *2018-04-20*

CHANGELOG.es.md

 ## Changelog
 
+### 2.3.6
+
+*2018-04-21*
+
+- Fixed wrong behavior of Tree's `allow-drop` callback when `type` parameter is used, #10821
+- Now you can properly enter keywords in filterable single Select in IE11, #10822
+- Fixed single Select incorrectly triggering `blur` event after clicking an option, #10822
+
 ### 2.3.5
 
 *2018-04-20*

CHANGELOG.zh-CN.md

 ## 更新日志
 
+### 2.3.6
+
+*2018-04-21*
+
+- 修复 Tree 的 `allow-drop` 回调在使用 `type` 参数后的错误行为，#10821
+- 修复可搜索的单选 Select 在 IE11 中无法输入搜索关键词的问题，#10822
+- 修复单选 Select 在使用鼠标选中某个选项后错误地触发 `blur` 事件的问题，#10822
+
 ### 2.3.5
 
 *2018-04-20*