docs: changelog for 5.26.4 (#54307)

* docs: changelog for 5.26.4

* chore: bump version to 5.26.4

* docs: update changelog

CHANGELOG.en-US.md

@@ -15,6 +15,16 @@ tag: vVERSION
 
 ---
 
+## 5.26.4
+
+`2025-07-07`
+
+- 🐞 Fix Radio.Group does not inherit `name` property problem from Form ancestor. [#54206](https://github.com/ant-design/ant-design/pull/54206) [@aojunhao123](https://github.com/aojunhao123)
+- 🐞 Fix Select clear icon flickering on Safari with GPU compositing. [#54237](https://github.com/ant-design/ant-design/pull/54237) [@afc163](https://github.com/afc163)
+- 💄 Fix Cascader `font-weight` when selected. [#54251](https://github.com/ant-design/ant-design/pull/54251) [@li-jia-nan](https://github.com/li-jia-nan)
+- ⚡️ Optimize Table performance since copy logic for flatten data. [#54288](https://github.com/ant-design/ant-design/pull/54288) [@zhouxinyong](https://github.com/zhouxinyong)
+
+
 ## 5.26.3
 
 `2025-06-30`

CHANGELOG.zh-CN.md

@@ -15,6 +15,15 @@ tag: vVERSION
 
 ---
 
+## 5.26.4
+
+`2025-07-07`
+
+- 🐞 修复 Radio.Group 未从 Form 继承 `name` 属性的问题。[#54206](https://github.com/ant-design/ant-design/pull/54206) [@aojunhao123](https://github.com/aojunhao123)
+- 🐞 修复 Select 清除图标在 Safari 中闪动的问题。[#54237](https://github.com/ant-design/ant-design/pull/54237) [@afc163](https://github.com/afc163)
+- 💄 修复 Cascader 选中后的 `font-weight` 设置值。[#54251](https://github.com/ant-design/ant-design/pull/54251) [@li-jia-nan](https://github.com/li-jia-nan)
+- ⚡️ 优化 Table 数据展开时的拷贝逻辑以提升性能。[#54288](https://github.com/ant-design/ant-design/pull/54288) [@zhouxinyong](https://github.com/zhouxinyong)
+
 ## 5.26.3
 
 `2025-06-30`

package.json

@@ -1,6 +1,6 @@
 {
   "name": "antd",
-  "version": "5.26.3",
+  "version": "5.26.4",
   "description": "An enterprise-class UI design language and React components implementation",
   "license": "MIT",
   "funding": {