message: docs(changelog): 4.0.0-alpha.1
diff: @@ -19,4 +19,20 @@ Vant follows [Semantic Versioning 2.0.0](https://semver.org/lang/zh-CN/).
  ## Details
  -TODO
  +### [v4.0.0-alpha.1](https://github.com/youzan/vant/compare/v3.4.6...v4.0.0-alpha.1)
  +
  +`2022-03-19`
  +
  +**Feature**
  +
  +- @vant/area-data: update counties of NanJing [#10410](https://github.com/youzan/vant/issues/10410)
  +- Locale: add la-LA.ts [#10388](https://github.com/youzan/vant/issues/10388)
  +
  +**Bug Fixes**
  +
  +- Calendar: fix title color in dark mode [#10403](https://github.com/youzan/vant/issues/10403)
  +- Picker: fix title color in dark mode [#10403](https://github.com/youzan/vant/issues/10403)
  +- ConfigProvider: dark mode not work as default value [#10413](https://github.com/youzan/vant/issues/10413)
  +- DatePicker: failed to update model value [#10415](https://github.com/youzan/vant/issues/10415)
  +- Dialog: fix title and message color in dark mode [#10379](https://github.com/youzan/vant/issues/10379)
  +- IndexBar: allow active bottom anchor [#10404](https://github.com/youzan/vant/issues/10404)
  