diff --git a/CHANGELOG.en-US.md b/CHANGELOG.en-US.md
index 107603e7a7..cd3ea66add 100644
--- a/CHANGELOG.en-US.md
+++ b/CHANGELOG.en-US.md
@@ -15,6 +15,52 @@ timeline: true
 
 ---
 
+## 4.2.1
+
+`2020-05-11`
+
+- Form
+  - 🐞 Fix Form.Item get React warning for `getValueProps`. [#23875](https://github.com/ant-design/ant-design/pull/23875)
+  - 🐞 Fix Form.Item `help` style issue when `validateStatus` is not `error`. [#23945](https://github.com/ant-design/ant-design/pull/23945)
+- Table
+  - 🐞 Fix selection column width issue when fix header. [#23806](https://github.com/ant-design/ant-design/pull/23806)
+  - 💄 Adjust selection column css selector priority to enable customize width. [#23914](https://github.com/ant-design/ant-design/pull/23914)
+- DatePicker
+  - 🐞 Fix miss placeholder when `placeholder` is `undefined`. [#23818](https://github.com/ant-design/ant-design/pull/23818)
+  - 🐞 Fix clear icon color style. [#23811](https://github.com/ant-design/ant-design/pull/23811)
+- Switch
+  - 🐞 Fix loading style for the dark theme. [#23766](https://github.com/ant-design/ant-design/pull/23766) [@vsn4ik](https://github.com/vsn4ik)
+  - 🐞 Fix `unCheckedChildren` not showing. [#23791](https://github.com/ant-design/ant-design/pull/23791)
+- 🐞 Fix Upload error message location to scroll in the float layer. [#24001](https://github.com/ant-design/ant-design/pull/24001) [@mraiguo](https://github.com/mraiguo)
+- 💄 Tweak Comment render unnecessary div style when `avatar` is empty. [#23994](https://github.com/ant-design/ant-design/pull/23994) [@Xuhao](https://github.com/Xuhao)
+- 🐞 Fix Select `focus` border style in Input.Group. [#23985](https://github.com/ant-design/ant-design/pull/23985)
+- 🐞 Fix Steps `subTitle` showing `[object Object]` title. [#23989](https://github.com/ant-design/ant-design/pull/23989)
+- 💄 Tweak Select close icon position. [#23963](https://github.com/ant-design/ant-design/pull/23963)
+- 🐞 Fix Drawer `width="50%"` hidden problem when no mask. [#23925](https://github.com/ant-design/ant-design/pull/23925)
+- 🐞 Fix Textarea with `allowClear` has error height style. [#23835](https://github.com/ant-design/ant-design/pull/23835)
+- 💄 Adjust Modal.xxx function async to avoid block React events. [#23826](https://github.com/ant-design/ant-design/pull/23826)
+- 🐞 Fix Menu with controlled `openKeys` abnormal behavior when `inlineCollapsed` changed. [#23822](https://github.com/ant-design/ant-design/pull/23822)
+- 🐞 Fix Button `loading` animation. [#23783](https://github.com/ant-design/ant-design/pull/23783)
+- 🐞 Fix Slider `marks` selected problem when dragging. [#23773](https://github.com/ant-design/ant-design/pull/23773)
+- 🛠 Timeline refactors with React Hooks. [#23631](https://github.com/ant-design/ant-design/pull/23631) [@hengkx](https://github.com/hengkx)
+- 🌎 Localization
+  - 🌐 Add Farsi `fa_IR` default locale template localisations. [#23926](https://github.com/ant-design/ant-design/pull/23926) [@NarimanMov](https://github.com/NarimanMov)
+  - 🌐 Add default `en` default locale template localisations for Form. [#23859](https://github.com/ant-design/ant-design/pull/23859) [@mjfwebb](https://github.com/mjfwebb)
+- 📦 Reduce bundle size
+  - 🗑 Reduce bundle size via removing `react-lifecycles-compat`. [#23969](https://github.com/ant-design/ant-design/pull/23969)
+  - 🛠 Reduce bundle size via excluding `package.json` from source code. [#23957](https://github.com/ant-design/ant-design/pull/23957)
+  - 🛠 Upgrade `rc-animate` to 3.x to reduce bundle size. [#23937](https://github.com/ant-design/ant-design/pull/23937)
+- RTL
+  - 🐞 Fix Input clear icon style in RTL. [#23999](https://github.com/ant-design/ant-design/pull/23999)
+  - 🐞 Fix DatePicker panel style in RTL. [#24028](https://github.com/ant-design/ant-design/pull/24028) [@xrkffgg](https://github.com/xrkffgg)
+  - 💄 Optimize DatePicker active bar style in `RTL`. [#23981](https://github.com/ant-design/ant-design/pull/23981)
+  - 🐞 Fix Transfer search padding style in `RTL`. [#23962](https://github.com/ant-design/ant-design/pull/23962)
+  - 💄 Optimize Layout style of RTL. [#23921](https://github.com/ant-design/ant-design/pull/23921)
+  - 💄 Optimize Button `loading` style in RT. [#23776](https://github.com/ant-design/ant-design/pull/23776)
+  - 💄 Optimize Input.Search style in RTL. [#23797](https://github.com/ant-design/ant-design/pull/23797)
+- TypeScript
+  - 🐞 Fix InputNumber `onChange` type. [#23871](https://github.com/ant-design/ant-design/pull/23871) [@jjhbw](https://github.com/jjhbw)
+
 ## 4.2.0
 
 `2020-04-29`
diff --git a/CHANGELOG.zh-CN.md b/CHANGELOG.zh-CN.md
index 2cde08a8fe..bd47660cc7 100644
--- a/CHANGELOG.zh-CN.md
+++ b/CHANGELOG.zh-CN.md
@@ -15,6 +15,52 @@ timeline: true
 
 ---
 
+## 4.2.1
+
+`2020-05-11`
+
+- Form
+  - 🐞 修复 Form.Item 使用 `getValueProps` React 会报警的问题。[#23875](https://github.com/ant-design/ant-design/pull/23875)
+  - 🐞 修复 Form.Item `help` 在 `validateStatus` 不是 `error` 时的样式问题。[#23945](https://github.com/ant-design/ant-design/pull/23945)
+- Table
+  - 🐞 修复 Table 固定表头时选择列的宽度问题。[#23806](https://github.com/ant-design/ant-design/pull/23806)
+  - 💄 调整 Table 选择列 css 选择器优先级以支持自定义宽度。[#23914](https://github.com/ant-design/ant-design/pull/23914)
+- DatePicker
+  - 🐞 修复在 `placeholder` 为 `undefined` 时不展示的问题。[#23818](https://github.com/ant-design/ant-design/pull/23818)
+  - 🐞 修复清除图标的颜色。[#23811](https://github.com/ant-design/ant-design/pull/23811)
+- Switch
+  - 🐞 修复暗色主题下的加载样式。[#23766](https://github.com/ant-design/ant-design/pull/23766) [@vsn4ik](https://github.com/vsn4ik)
+  - 🐞 修复 `unCheckedChildren` 不显示的问题。[#23791](https://github.com/ant-design/ant-design/pull/23791)
+- 🐞 修复 Upload 在浮层中错误提示滚动定位问题。[#24001](https://github.com/ant-design/ant-design/pull/24001) [@mraiguo](https://github.com/mraiguo)
+- 💄 调整 Comment 中 `avatar` 为空时不必要的 div 样式[#23994](https://github.com/ant-design/ant-design/pull/23994) [@Xuhao](https://github.com/Xuhao)
+- 🐞 修复 Input.Group 中 Select 选项 `focus` 边框样式[#23985](https://github.com/ant-design/ant-design/pull/23985)
+- 🐞 修复 Steps `subTitle` 上会显示 `[object Object]` 提示的问题。[#23989](https://github.com/ant-design/ant-design/pull/23989)
+- 💄 微调 Select 移除图标的位置。[#23963](https://github.com/ant-design/ant-design/pull/23963)
+- 🐞 修复无遮罩的 Drawer 设置 `50%` 宽度时不显示的问题。[#23925](https://github.com/ant-design/ant-design/pull/23925)
+- 🐞 修复 Textarea 开启 `allowClear` 时高度错误的问题。[#23835](https://github.com/ant-design/ant-design/pull/23835)
+- 💄 调整 Modal.xxx 方法为异步以防止其影响 React 事件响应。[#23826](https://github.com/ant-design/ant-design/pull/23826)
+- 🐞 修复受控模式 Menu `inlineCollapsed` 折叠时的表现。[#23822](https://github.com/ant-design/ant-design/pull/23822)
+- 🐞 修复 Button `loading` 动画切换不平滑的问题。[#23783](https://github.com/ant-design/ant-design/pull/23783)
+- 🐞 修复 Slider 拖拽中选中 `marks` 文本的问题。[#23773](https://github.com/ant-design/ant-design/pull/23773)
+- 🛠 Timeline 使用 React Hooks 重构。[#23631](https://github.com/ant-design/ant-design/pull/23631) [@hengkx](https://github.com/hengkx)
+- 🌎 国际化
+  - 🌐 增加波斯语 `fa_IR` 国际化默认提示模板。[#23926](https://github.com/ant-design/ant-design/pull/23926) [@NarimanMov](https://github.com/NarimanMov)
+  - 🌐 增加 Form `en` 国际化默认提示模板[#23859](https://github.com/ant-design/ant-design/pull/23859) [@mjfwebb](https://github.com/mjfwebb)
+- 📦 包体积优化
+  - 🗑 移除 `react-lifecycles-compat` 依赖以优化包体积。[#23969](https://github.com/ant-design/ant-design/pull/23969)
+  - 🛠 源码中不再引用 `package.json` 从而优化了一点包体积。[#23957](https://github.com/ant-design/ant-design/pull/23957)
+  - 🛠 更新 `rc-animate` 到 3.x 以优化包体积。[#23937](https://github.com/ant-design/ant-design/pull/23937)
+- RTL
+  - 🐞 修复 Input 在 RTL 模式下清空按钮的样式。[#23999](https://github.com/ant-design/ant-design/pull/23999)
+  - 🐞 修复 DatePicker 下拉框在 RTL 模式下样式。[#24028](https://github.com/ant-design/ant-design/pull/24028) [@xrkffgg](https://github.com/xrkffgg)
+  - 💄 优化 DatePick 在 `RTL` 模式下的激活条样式。[#23981](https://github.com/ant-design/ant-design/pull/23981)
+  - 🐞 修复 Transfer 查询框在 `RTL` 模式下的边距样式。[#23962](https://github.com/ant-design/ant-design/pull/23962)
+  - 💄 优化 Layout RTL 样式。[#23921](https://github.com/ant-design/ant-design/pull/23921)
+  - 💄 优化 Button `loading` 状态在 RTL 下样式。[#23776](https://github.com/ant-design/ant-design/pull/23776)
+  - 💄 优化 Input.Search RTL 样式。[#23797](https://github.com/ant-design/ant-design/pull/23797)
+- TypeScript
+  - 🐞 修复 InputNumber `onChange` 类型。[#23871](https://github.com/ant-design/ant-design/pull/23871) [@jjhbw](https://github.com/jjhbw)
+
 ## 4.2.0
 
 `2020-04-29`
diff --git a/package.json b/package.json
index 2255bf416a..ffa6de80e6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "antd",
-  "version": "4.2.0",
+  "version": "4.2.1",
   "description": "An enterprise-class UI design language and React components implementation",
   "keywords": [
     "ant",