chore: add changelog

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

@@ -16,6 +16,16 @@ Version：Major.Minor.Patch
 
 ---
 
+#### 🎉 2.7.0-beta.0 (2022-03-18)
+- 【Fix】
+    - Fix the problem where the trigger unexpectedly display [object object] when Cascader was in single-select and non-search mode, and the label was ReactNode.  [#592](https://github.com/DouyinFE/semi-design/issues/592)
+    - ButtonGroup support calssName props  [#704](https://github.com/DouyinFE/semi-design/issues/704) [@yaogengzhu](https://github.com/yaogengzhu)
+    - Fixed that the value of the Tree component will affect the expansion of the node at the beginning, but after updating the treeData, it will no longer affect the expansion of the node  [#257](https://github.com/DouyinFE/semi-design/issues/257)
+    - fix expandedKeys of TreeSelect is not completely controlled  [#328](https://github.com/DouyinFE/semi-design/issues/328)
+- 【Feat】
+    - DatePicker supports inset input in panel  [#294](https://github.com/DouyinFE/semi-design/issues/294)
+    - TreeSelect add filterExpandedKeys parameter for onSearch  [#328](https://github.com/DouyinFE/semi-design/issues/328)
+
 #### 🎉 2.6.0 (2022-03-11)
 - 【Fix】
     - Fixed the problem that when Table expands any row, other expanded rows will be rendered repeatedly  [#686](https://github.com/DouyinFE/semi-design/issues/686)

content/start/changelog/index.md

@@ -15,6 +15,17 @@ Semi 版本号遵循**Semver**规范（主版本号-次版本号-修订版本号
 
 ---
 
+#### 🎉 2.7.0-beta.0 (2022-03-18)
+- 【Fix】
+    - 修复 Cascader 在单选且非搜索模式下，label 为 ReactNode 时，trigger 异常显示 [object object] 的问题。  [#592](https://github.com/DouyinFE/semi-design/issues/592)
+    - ButtonGroup 支持 className  [#704](https://github.com/DouyinFE/semi-design/issues/704) [@yaogengzhu](https://github.com/yaogengzhu)
+    - 修复 Tree 组件 value 在初始时会影响节点的展开，而更新 treeData后，却不会再影响节点的展开  [#257](https://github.com/DouyinFE/semi-design/issues/257)
+    - 修复 TreeSelect 非完全受控问题  [#328](https://github.com/DouyinFE/semi-design/issues/328)
+- 【Feat】
+    - DatePicker 支持内嵌样式输入框  [#294](https://github.com/DouyinFE/semi-design/issues/294)
+    - TreeSelect onSearch 新增 filterExpandedKeys 参数  [#328](https://github.com/DouyinFE/semi-design/issues/328)
+    
+
 #### 🎉 2.6.0 (2022-03-11)
 - 【Fix】
     - 修复 Table 展开任意行时其他展开行会重复渲染问题  [#686](https://github.com/DouyinFE/semi-design/issues/686)