docs: add changelog 5.21.6 (#51377)

* docs: add changelog 5.21.6

* docs: add

* docs: add

* docs: add

---------

Co-authored-by: 元凛 <xuerongkang.xrk@antgroup.com>

CHANGELOG.en-US.md

@@ -15,6 +15,19 @@ tag: vVERSION
 
 ---
 
+## 5.21.6
+
+`2024-10-28`
+
+- 🐞 Fix Tree.DirectoryTree interactive area not being a whole row. [#51210](https://github.com/ant-design/ant-design/pull/51210)
+- 🐞 Fix the Button icon was not vertically centered. [#51381](https://github.com/ant-design/ant-design/pull/51381)
+- 🐞 Fix the pointer style not set to `not-allowed` in the `disabled` state when `variant` of the Input was set to `borderless`. [#51387](https://github.com/ant-design/ant-design/pull/51387) [@ustcfury](https://github.com/ustcfury)
+- Splitter
+  - 💄 Improve the pre-rendered style of Splitter under SSR. [#51378](https://github.com/ant-design/ant-design/pull/51378)
+  - 💄 Increased the click area of ​​the Splitter collapse button to improve usability. [#51383](https://github.com/ant-design/ant-design/pull/51383) [@aojunhao123](https://github.com/aojunhao123)
+- 💄 Improve Checkbox `indeterminate` to enhance accessibility experience. [#51350](https://github.com/ant-design/ant-design/pull/51350) [@SpaNb4](https://github.com/SpaNb4)
+- 💄 Improve the `title` of the Empty preset svg image to improve accessibility experience. [#51368](https://github.com/ant-design/ant-design/pull/51368)
+
 ## 5.21.5
 
 `2024-10-21`

CHANGELOG.zh-CN.md

@@ -15,6 +15,19 @@ tag: vVERSION
 
 ---
 
+## 5.21.6
+
+`2024-10-28`
+
+- 🐞 修复 Tree.DirectoryTree 交互区域不是整行的问题。[#51210](https://github.com/ant-design/ant-design/pull/51210)
+- 🐞 修复 Button 图标未垂直居中的问题。[#51381](https://github.com/ant-design/ant-design/pull/51381)
+- 🐞 修复 Input 组件 `variant` 设置 `borderless` 时，`disabled` 状态下指针样式未设置 `not-allowed` 的问题。[#51387](https://github.com/ant-design/ant-design/pull/51387) [@ustcfury](https://github.com/ustcfury)
+- Splitter
+  - 💄 优化 Splitter 在 SSR 下预渲染的样式。[#51378](https://github.com/ant-design/ant-design/pull/51378)
+  - 💄 增大 Splitter 折叠按钮点击区域，提高可用性。[#51383](https://github.com/ant-design/ant-design/pull/51383) [@aojunhao123](https://github.com/aojunhao123)
+- 💄 优化 Checkbox `indeterminate` 提升无障碍体验。[#51350](https://github.com/ant-design/ant-design/pull/51350) [@SpaNb4](https://github.com/SpaNb4)
+- 💄 优化 Empty 预设 svg 图片的 `title` 提升无障碍体验。[#51368](https://github.com/ant-design/ant-design/pull/51368)
+
 ## 5.21.5
 
 `2024-10-21`

package.json

@@ -1,6 +1,6 @@
 {
   "name": "antd",
-  "version": "5.21.5",
+  "version": "5.21.6",
   "description": "An enterprise-class UI design language and React components implementation",
   "license": "MIT",
   "funding": {