docs(changelog): 4.0.0-rc.8 (#11276)

packages/vant/docs/markdown/changelog.en-US.md

@@ -19,6 +19,20 @@ Vant follows [Semantic Versioning 2.0.0](https://semver.org/lang/zh-CN/).
 
 ## Details
 
+### [v4.0.0-rc.8](https://github.com/vant-ui/vant/compare/v4.0.0-rc.7...v4.0.0-rc.8)
+
+`2022-11-20`
+
+**Feature**
+
+- add new BackTop component, note that the API is not stable yet, we may change the API before 4.0 release. [#11236](https://github.com/vant-ui/vant/issues/11236)
+
+**Bug Fixes**
+
+- DropdownItem: should inherit attrs when using teleport [#11273](https://github.com/vant-ui/vant/issues/11273)
+- List: incorrect initial loading value [#11275](https://github.com/vant-ui/vant/issues/11275)
+- NumberKeyboard: should inherit attrs when using teleport [#11274](https://github.com/vant-ui/vant/issues/11274)
+
 ### [v4.0.0-rc.7](https://github.com/vant-ui/vant/compare/v4.0.0-rc.6...v4.0.0-rc.7)
 
 `2022-11-13`

packages/vant/docs/markdown/changelog.zh-CN.md

@@ -19,6 +19,20 @@ Vant 遵循 [Semver](https://semver.org/lang/zh-CN/) 语义化版本规范。
 
 ## 更新内容
 
+### [v4.0.0-rc.8](https://github.com/vant-ui/vant/compare/v4.0.0-rc.7...v4.0.0-rc.8)
+
+`2022-11-20`
+
+**Feature**
+
+- 新增 BackTop 回到顶部组件，注意该新组件的 API 尚未稳定，在 4.0 正式版发布前仍可能产生 breaking change [#11236](https://github.com/vant-ui/vant/issues/11236)
+
+**Bug Fixes**
+
+- DropdownItem: 修复使用 teleport 时无法设置 attr 的问题 [#11273](https://github.com/vant-ui/vant/issues/11273)
+- List: 修复初始的 loading 值为 true 时加载错误的问题 [#11275](https://github.com/vant-ui/vant/issues/11275)
+- NumberKeyboard: 修复使用 teleport 时无法设置 attr 的问题 [#11274](https://github.com/vant-ui/vant/issues/11274)
+
 ### [v4.0.0-rc.7](https://github.com/vant-ui/vant/compare/v4.0.0-rc.6...v4.0.0-rc.7)
 
 `2022-11-13`

packages/vant/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vant",
-  "version": "4.0.0-rc.7",
+  "version": "4.0.0-rc.8",
   "description": "Mobile UI Components built on Vue",
   "main": "lib/vant.cjs.js",
   "module": "es/index.mjs",