docs(changelog): v2.16.0 update

content/start/changelog/index-en-US.md

@@ -17,6 +17,18 @@ Version：Major.Minor.Patch (follow the **Semver** specification)
 ---
 
 
+#### 🎉 2.16.0-beta.0 (2022-07-25)
+- 【Fix】
+    - fix the problem that it does not take effect when the noHorizontalPadding parameter type of Button is string
+    - fix the issue that the item in the right panel can still be deleted and cannot be dragged after the item is disabled in the draggable Transfer
+    - fix the problem that the icon and text are not aligned when the Text component sets the icon through the icon API
+    - allows users to customize the type and theme of the Button individually through the parameters of the Button in the ButtonGroup
+    - fix the problem that the width of TreeSelect arrows is not uniform after wrapping when multiple selections are made
+- 【Feat】
+    - Cascader adds position API to control the direction of the bullet layer
+    - Slider adds A11y focus and keyboard adaptation
+- 【Docs】
+    - Icon update custom icon example
 #### 🎉 2.15.1 (2022-07-19)
 - 【Fix】
     - Fix the problem that @douyinfe/semi-illustrations failed to shaking [#961](https://github.com/DouyinFE/semi-design/issues/961)

content/start/changelog/index.md

@@ -16,6 +16,19 @@ Semi 版本号遵循 **Semver** 规范（主版本号-次版本号-修订版本
 
 ---
 
+#### 🎉 2.16.0-beta.0 (2022-07-25)
+- 【Fix】
+    - 修复当Button的noHorizontalPadding参数类型为string时不生效问题
+    - 修复可拖拽的Transfer禁用item后右侧面板中的item仍然能够删除且不可拖动的问题
+    - 修复Text组件通过icon API设置icon时icon和文字不对齐问题
+    - 允许用户通过ButtonGroup中的Button的参数单独定制Button的type和theme
+    - 修复多选时，换行后TreeSelect 箭头宽度不统一问题
+- 【Feat】
+    - Cascader 新增 position API 控制弹层方向
+    - Slider 新增 A11y 焦点及键盘适配
+- 【Docs】
+    - Icon 更新自定义图标示例
+
 #### 🎉 2.15.1 (2022-07-19)
 - 【Fix】
     - 修复 @douyinfe/semi-illustrations 插画按需加载失效的问题 [#961](https://github.com/DouyinFE/semi-design/issues/961)