diff --git a/.github/workflows/compressed-size.yml b/.github/workflows/compressed-size.yml
index ce2746f881..33f3c2112a 100644
--- a/.github/workflows/compressed-size.yml
+++ b/.github/workflows/compressed-size.yml
@@ -1,6 +1,6 @@
 name: 📦 Compressed Size
 
-on: [pull_request]
+on: [pull_request_target]
 
 jobs:
   build:
@@ -11,6 +11,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+      with:
+        ref: refs/pull/${{ github.event.pull_request.number }}/merge
     - uses: preactjs/compressed-size-action@v2
       with:
         repo-token: "${{ secrets.GITHUB_TOKEN }}"
diff --git a/.github/workflows/lighthouse-ci.yml b/.github/workflows/lighthouse-ci.yml
index f66f6d2e0e..60b4604e59 100644
--- a/.github/workflows/lighthouse-ci.yml
+++ b/.github/workflows/lighthouse-ci.yml
@@ -1,5 +1,7 @@
-name: CI
+name: lighthouse ci
+
 on: [push]
+
 jobs:
   lighthouseci:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0a8c97ff9a..7b27afefa7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,6 +1,6 @@
-name: test
+name: ✅ test
 
-on: [push, pull_request]
+on: push
 
 jobs:
   setup:
@@ -18,7 +18,7 @@ jobs:
       - name: create package-lock.json
         run: npm i --package-lock-only
 
-      - name: hack for singe file
+      - name: hack for single file
         run: |
           if [ ! -d "package-temp-dir" ]; then
             mkdir package-temp-dir
@@ -73,41 +73,6 @@ jobs:
         run: node ./tests/dekko/lib.test.js
     needs: setup
 
-  dist:
-    runs-on: ubuntu-latest
-    steps:
-      - name: checkout
-        uses: actions/checkout@master
-
-      - name: restore cache from package-lock.json
-        uses: actions/cache@v2
-        with:
-          path: package-temp-dir
-          key: lock-${{ github.sha }}
-
-      - name: restore cache from node_modules
-        uses: actions/cache@v2
-        with:
-          path: node_modules
-          key: node_modules-${{ hashFiles('**/package-temp-dir/package-lock.json') }}
-
-      - name: dist
-        run: npm run dist
-        env:
-          NODE_OPTIONS: --max_old_space_size=4096
-
-      - name: check
-        run: node ./tests/dekko/dist.test.js
-
-      - name: bundlesize
-        run: npm run bundlesize
-
-      - name: test
-        run: npm test
-        env:
-          LIB_DIR: dist
-    needs: setup
-
   lint:
     runs-on: ubuntu-latest
     steps:
@@ -130,53 +95,6 @@ jobs:
         run: npm run lint
     needs: setup
 
-  dom:
-    runs-on: ubuntu-latest
-    steps:
-      - name: checkout
-        uses: actions/checkout@master
-
-      - name: restore cache from package-lock.json
-        uses: actions/cache@v2
-        with:
-          path: package-temp-dir
-          key: lock-${{ github.sha }}
-
-      - name: restore cache from node_modules
-        uses: actions/cache@v2
-        with:
-          path: node_modules
-          key: node_modules-${{ hashFiles('**/package-temp-dir/package-lock.json') }}
-
-      - name: test
-        run: npm test -- -w 1 --coverage
-
-      - name: coverage
-        run: bash <(curl -s https://codecov.io/bash)
-    needs: setup
-
-  node:
-    runs-on: ubuntu-latest
-    steps:
-      - name: checkout
-        uses: actions/checkout@master
-
-      - name: restore cache from package-lock.json
-        uses: actions/cache@v2
-        with:
-          path: package-temp-dir
-          key: lock-${{ github.sha }}
-
-      - name: restore cache from node_modules
-        uses: actions/cache@v2
-        with:
-          path: node_modules
-          key: node_modules-${{ hashFiles('**/package-temp-dir/package-lock.json') }}
-
-      - name: test
-        run: npm run test-node
-    needs: setup
-
   check_metadata:
     runs-on: ubuntu-latest
     steps:
@@ -199,7 +117,57 @@ jobs:
         run: node ./scripts/check-demo.js
     needs: setup
 
-  lib:
+  react-17-dom:
+    name: react@17.x / dom
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@master
+
+      - name: restore cache from package-lock.json
+        uses: actions/cache@v2
+        with:
+          path: package-temp-dir
+          key: lock-${{ github.sha }}
+
+      - name: restore cache from node_modules
+        uses: actions/cache@v2
+        with:
+          path: node_modules
+          key: node_modules-${{ hashFiles('**/package-temp-dir/package-lock.json') }}
+
+      - name: test
+        run: npm test -- -w 1 --coverage
+
+      - name: coverage
+        run: bash <(curl -s https://codecov.io/bash)
+    needs: setup
+
+  react-17-node:
+    name: react@17.x / node
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@master
+
+      - name: restore cache from package-lock.json
+        uses: actions/cache@v2
+        with:
+          path: package-temp-dir
+          key: lock-${{ github.sha }}
+
+      - name: restore cache from node_modules
+        uses: actions/cache@v2
+        with:
+          path: node_modules
+          key: node_modules-${{ hashFiles('**/package-temp-dir/package-lock.json') }}
+
+      - name: test
+        run: npm run test-node
+    needs: setup
+
+  react-17-lib:
+    name: react@17.x / lib
     runs-on: ubuntu-latest
     steps:
       - name: checkout
@@ -229,7 +197,8 @@ jobs:
           LIB_DIR: lib
     needs: compile
 
-  es:
+  react-17-es:
+    name: react@17.x / es
     runs-on: ubuntu-latest
     steps:
       - name: checkout
@@ -258,3 +227,207 @@ jobs:
         env:
           LIB_DIR: es
     needs: compile
+
+  react-17-dist:
+    name: react@17.x / dist
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@master
+
+      - name: restore cache from package-lock.json
+        uses: actions/cache@v2
+        with:
+          path: package-temp-dir
+          key: lock-${{ github.sha }}
+
+      - name: restore cache from node_modules
+        uses: actions/cache@v2
+        with:
+          path: node_modules
+          key: node_modules-${{ hashFiles('**/package-temp-dir/package-lock.json') }}
+
+      - name: dist
+        run: npm run dist
+        env:
+          NODE_OPTIONS: --max_old_space_size=4096
+
+      - name: check
+        run: node ./tests/dekko/dist.test.js
+
+      - name: bundlesize
+        run: npm run bundlesize
+        env:
+          BUNDLESIZE_GITHUB_TOKEN: ${{ secrets.BUNDLESIZE_GITHUB_TOKEN }}
+
+      - name: test
+        run: npm test
+        env:
+          LIB_DIR: dist
+    needs: setup
+
+  react-16-dom:
+    name: react@16.x / dom
+    runs-on: ubuntu-latest
+    env:
+      REACT: 16
+    steps:
+      - name: checkout
+        uses: actions/checkout@master
+
+      - name: restore cache from package-lock.json
+        uses: actions/cache@v2
+        with:
+          path: package-temp-dir
+          key: lock-${{ github.sha }}
+
+      - name: restore cache from node_modules
+        uses: actions/cache@v2
+        with:
+          path: node_modules
+          key: node_modules-${{ hashFiles('**/package-temp-dir/package-lock.json') }}
+
+      - name: install react 16
+        run: npm run install-react-16
+
+      - name: test
+        run: npm test -- -w 1 --coverage
+    needs: setup
+
+  react-16-node:
+    name: react@16.x / node
+    runs-on: ubuntu-latest
+    env:
+      REACT: 16
+    steps:
+      - name: checkout
+        uses: actions/checkout@master
+
+      - name: restore cache from package-lock.json
+        uses: actions/cache@v2
+        with:
+          path: package-temp-dir
+          key: lock-${{ github.sha }}
+
+      - name: restore cache from node_modules
+        uses: actions/cache@v2
+        with:
+          path: node_modules
+          key: node_modules-${{ hashFiles('**/package-temp-dir/package-lock.json') }}
+
+      - name: install react 16
+        run: npm run install-react-16
+
+      - name: test
+        run: npm run test-node
+    needs: setup
+
+  react-16-lib:
+    name: react@16.x / lib
+    runs-on: ubuntu-latest
+    env:
+      REACT: 16
+    steps:
+      - name: checkout
+        uses: actions/checkout@master
+
+      - name: restore cache from package-lock.json
+        uses: actions/cache@v2
+        with:
+          path: package-temp-dir
+          key: lock-${{ github.sha }}
+
+      - name: restore cache from node_modules
+        uses: actions/cache@v2
+        with:
+          path: node_modules
+          key: node_modules-${{ hashFiles('**/package-temp-dir/package-lock.json') }}
+
+      - name: restore cache from lib
+        uses: actions/cache@v2
+        with:
+          path: lib
+          key: lib-${{ github.sha }}
+
+      - name: install react 16
+        run: npm run install-react-16
+
+      - name: test
+        run: npm test
+        env:
+          LIB_DIR: lib
+    needs: compile
+
+  react-16-es:
+    name: react@16.x / es
+    runs-on: ubuntu-latest
+    env:
+      REACT: 16
+    steps:
+      - name: checkout
+        uses: actions/checkout@master
+
+      - name: restore cache from package-lock.json
+        uses: actions/cache@v2
+        with:
+          path: package-temp-dir
+          key: lock-${{ github.sha }}
+
+      - name: restore cache from node_modules
+        uses: actions/cache@v2
+        with:
+          path: node_modules
+          key: node_modules-${{ hashFiles('**/package-temp-dir/package-lock.json') }}
+
+      - name: restore cache from es
+        uses: actions/cache@v2
+        with:
+          path: es
+          key: es-${{ github.sha }}
+
+      - name: install react 16
+        run: npm run install-react-16
+
+      - name: test
+        run: npm test
+        env:
+          LIB_DIR: es
+    needs: compile
+
+  react-16-dist:
+    name: react@16.x / dist
+    runs-on: ubuntu-latest
+    env:
+      REACT: 16
+    steps:
+      - name: checkout
+        uses: actions/checkout@master
+
+      - name: restore cache from package-lock.json
+        uses: actions/cache@v2
+        with:
+          path: package-temp-dir
+          key: lock-${{ github.sha }}
+
+      - name: restore cache from node_modules
+        uses: actions/cache@v2
+        with:
+          path: node_modules
+          key: node_modules-${{ hashFiles('**/package-temp-dir/package-lock.json') }}
+
+      - name: install react 16
+        run: npm run install-react-16
+
+      - name: dist
+        run: npm run dist
+        env:
+          NODE_OPTIONS: --max_old_space_size=4096
+
+      - name: check
+        run: node ./tests/dekko/dist.test.js
+
+      - name: test
+        run: npm test
+        env:
+          LIB_DIR: dist
+    needs: setup
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 30d62bdbb2..0000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-sudo: false
-
-language: node_js
-
-node_js:
-  - 11
-
-cache:
-  directories:
-    - $HOME/.npm
-
-matrix:
-  fast_finish: true
-  include:
-    - env: TEST_TYPE=lint
-    - env: TEST_TYPE=test:dist
-    - env: TEST_TYPE=test:lib
-    - env: TEST_TYPE=test:es
-    - env: TEST_TYPE=test:dom
-    - env: TEST_TYPE=test:node
-
-script:
-  - scripts/travis-script.sh
diff --git a/CHANGELOG.en-US.md b/CHANGELOG.en-US.md
index 3127a17dd7..75ee403c2e 100644
--- a/CHANGELOG.en-US.md
+++ b/CHANGELOG.en-US.md
@@ -15,6 +15,13 @@ timeline: true
 
 ---
 
+## 4.9.1
+
+`2020-12-01`
+
+- TypeScript
+  - 🤖 Fix Collapse.Panel `collapsible` property to optional. [#28092](https://github.com/ant-design/ant-design/pull/28092) [@sammarks](https://github.com/sammarks)
+
 ## 4.9.0
 
 `2020-11-30`
diff --git a/CHANGELOG.zh-CN.md b/CHANGELOG.zh-CN.md
index 27969b0020..0ee61d66bd 100644
--- a/CHANGELOG.zh-CN.md
+++ b/CHANGELOG.zh-CN.md
@@ -15,6 +15,13 @@ timeline: true
 
 ---
 
+## 4.9.1
+
+`2020-12-01`
+
+- TypeScript
+  - 🤖 修复 Collapse.Panel 可折叠属性 `collapsible` 为可选。[#28092](https://github.com/ant-design/ant-design/pull/28092) [@sammarks](https://github.com/sammarks)
+
 ## 4.9.0
 
 `2020-11-30`
diff --git a/components/alert/__tests__/__snapshots__/index.test.tsx.snap b/components/alert/__tests__/__snapshots__/index.test.tsx.snap
index a999ea6a8a..532e95c6b1 100644
--- a/components/alert/__tests__/__snapshots__/index.test.tsx.snap
+++ b/components/alert/__tests__/__snapshots__/index.test.tsx.snap
@@ -1,32 +1,5 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`Alert ErrorBoundary 1`] = `
-<div
-  class="ant-alert ant-alert-error ant-alert-with-description ant-alert-no-icon"
-  data-show="true"
-  role="alert"
->
-  <div
-    class="ant-alert-content"
-  >
-    <div
-      class="ant-alert-message"
-    >
-      ReferenceError: NotExisted is not defined
-    </div>
-    <div
-      class="ant-alert-description"
-    >
-      <pre>
-            in ThrowError
-    in ErrorBoundary (created by WrapperComponent)
-    in WrapperComponent
-      </pre>
-    </div>
-  </div>
-</div>
-`;
-
 exports[`Alert action of Alert custom action 1`] = `
 <div
   class="ant-alert ant-alert-success"
diff --git a/components/alert/__tests__/index.test.tsx b/components/alert/__tests__/index.test.tsx
index ae2c28d34f..c4379a288d 100644
--- a/components/alert/__tests__/index.test.tsx
+++ b/components/alert/__tests__/index.test.tsx
@@ -75,8 +75,7 @@ describe('Alert', () => {
     });
   });
 
-  const testIt = process.env.REACT === '15' ? it.skip : it;
-  testIt('ErrorBoundary', () => {
+  it('ErrorBoundary', () => {
     // @ts-expect-error
     // eslint-disable-next-line react/jsx-no-undef
     const ThrowError = () => <NotExisted />;
@@ -86,7 +85,7 @@ describe('Alert', () => {
       </ErrorBoundary>,
     );
     // eslint-disable-next-line jest/no-standalone-expect
-    expect(wrapper.render()).toMatchSnapshot();
+    expect(wrapper.text()).toContain('ReferenceError: NotExisted is not defined');
   });
 
   it('could be used with Tooltip', async () => {
diff --git a/components/carousel/index.tsx b/components/carousel/index.tsx
index 5984f8ced0..59df8e94d0 100644
--- a/components/carousel/index.tsx
+++ b/components/carousel/index.tsx
@@ -23,7 +23,7 @@ export interface CarouselProps extends Omit<Settings, 'dots' | 'dotsClass'> {
 }
 
 export interface CarouselRef {
-  goTo: (slide: number, dontAnimate: boolean) => void;
+  goTo: (slide: number, dontAnimate?: boolean) => void;
   next: () => void;
   prev: () => void;
   autoPlay: boolean;
diff --git a/components/collapse/CollapsePanel.tsx b/components/collapse/CollapsePanel.tsx
index 42e40e9150..68f796e424 100644
--- a/components/collapse/CollapsePanel.tsx
+++ b/components/collapse/CollapsePanel.tsx
@@ -18,7 +18,7 @@ export interface CollapsePanelProps {
   forceRender?: boolean;
   id?: string;
   extra?: React.ReactNode;
-  collapsible: CollapsibleType;
+  collapsible?: CollapsibleType;
 }
 
 const CollapsePanel: React.FC<CollapsePanelProps> = props => {
diff --git a/components/config-provider/__tests__/locale.test.js b/components/config-provider/__tests__/locale.test.js
index 5ffb49f82c..88fde5250c 100644
--- a/components/config-provider/__tests__/locale.test.js
+++ b/components/config-provider/__tests__/locale.test.js
@@ -13,10 +13,6 @@ describe('ConfigProvider.Locale', () => {
   }
 
   it('not throw', () => {
-    if (process.env.REACT === '15') {
-      return;
-    }
-
     mount(
       <ConfigProvider locale={{}}>
         <span />
diff --git a/components/form/index.en-US.md b/components/form/index.en-US.md
index 919283ea34..86a8a5c99e 100644
--- a/components/form/index.en-US.md
+++ b/components/form/index.en-US.md
@@ -168,7 +168,7 @@ Provides array management for fields.
 
 | Property | Description | Type | Default | Version |
 | --- | --- | --- | --- | --- |
-| children | Render function | (fields: Field\[], operation: { add, remove, move }) => React.ReactNode | - |  |
+| children | Render function | (fields: Field\[], operation: { add, remove, move }, meta: { errors }) => React.ReactNode | - |  |
 | initialValue | Config sub default value. Form `initialValues` get higher priority when conflict | string | - | 4.9.0 |
 | name | Field name, support array | [NamePath](#NamePath) | - |  |
 | rules | Validate rules, only support customize validator. Should work with [ErrorList](#Form.ErrorList) | { validator, message }\[] | - | 4.7.0 |
@@ -201,7 +201,7 @@ Some operator functions in render form of Form.List.
 
 ## Form.ErrorList
 
-New in 4.7.0. Show error messages, should only work with `rules` of Form.List.
+New in 4.7.0. Show error messages, should only work with `rules` of Form.List. See [example](#components-form-demo-dynamic-form-item).
 
 | Property | Description | Type | Default |
 | --- | --- | --- | --- |
diff --git a/components/form/index.zh-CN.md b/components/form/index.zh-CN.md
index e40dfce8f3..396462ce49 100644
--- a/components/form/index.zh-CN.md
+++ b/components/form/index.zh-CN.md
@@ -169,7 +169,7 @@ Form 通过增量更新方式，只更新被修改的字段相关组件以达到
 
 | 参数 | 说明 | 类型 | 默认值 | 版本 |
 | --- | --- | --- | --- | --- |
-| children | 渲染函数 | (fields: Field\[], operation: { add, remove, move }) => React.ReactNode | - |  |
+| children | 渲染函数 | (fields: Field\[], operation: { add, remove, move }, meta: { errors }) => React.ReactNode | - |  |
 | initialValue | 设置子元素默认值，如果与 Form 的 `initialValues` 冲突则以 Form 为准 | string | - | 4.9.0 |
 | name | 字段名，支持数组 | [NamePath](#NamePath) | - |  |
 | rules | 校验规则，仅支持自定义规则。需要配合 [ErrorList](#Form.ErrorList) 一同使用。 | { validator, message }\[] | - | 4.7.0 |
@@ -203,7 +203,7 @@ Form.List 渲染表单相关操作函数。
 
 ## Form.ErrorList
 
-4.7.0 新增。错误展示组件，仅限配合 Form.List 的 rules 一同使用。
+4.7.0 新增。错误展示组件，仅限配合 Form.List 的 rules 一同使用。参考[示例](#components-form-demo-dynamic-form-item)。
 
 | 参数 | 说明 | 类型 | 默认值 |
 | --- | --- | --- | --- |
diff --git a/components/grid/__tests__/index.test.js b/components/grid/__tests__/index.test.js
index 4e8db8811f..58efb4da5e 100644
--- a/components/grid/__tests__/index.test.js
+++ b/components/grid/__tests__/index.test.js
@@ -1,5 +1,6 @@
 import React from 'react';
 import { render, mount } from 'enzyme';
+import { act } from 'react-dom/test-utils';
 import { Col, Row } from '..';
 import mountTest from '../../../tests/shared/mountTest';
 import rtlTest from '../../../tests/shared/rtlTest';
@@ -75,10 +76,12 @@ describe('Grid', () => {
     expect(wrapper).toMatchSnapshot();
   });
 
-  it('when component has been unmounted, componentWillUnmount should be called', () => {
+  it('ResponsiveObserve.unsubscribe should be called when unmounted', () => {
     const Unmount = jest.spyOn(ResponsiveObserve, 'unsubscribe');
     const wrapper = mount(<Row gutter={{ xs: 20 }} />);
-    wrapper.unmount();
+    act(() => {
+      wrapper.unmount();
+    });
     expect(Unmount).toHaveBeenCalled();
   });
 
diff --git a/components/switch/__tests__/__snapshots__/index.test.js.snap b/components/switch/__tests__/__snapshots__/index.test.js.snap
index ff6873ee61..9810315a02 100644
--- a/components/switch/__tests__/__snapshots__/index.test.js.snap
+++ b/components/switch/__tests__/__snapshots__/index.test.js.snap
@@ -15,24 +15,3 @@ exports[`Switch rtl render component should be rendered correctly in RTL directi
   />
 </button>
 `;
-
-exports[`Switch should has click wave effect 1`] = `
-<button
-  ant-click-animating="true"
-  aria-checked="false"
-  class="ant-switch"
-  role="switch"
-  type="button"
->
-  <div
-    class="ant-switch-handle"
-  />
-  <span
-    class="ant-switch-inner"
-  />
-  <div
-    class="ant-click-animating-node"
-    style="border-color: buttonface;"
-  />
-</button>
-`;
diff --git a/components/switch/__tests__/index.test.js b/components/switch/__tests__/index.test.js
index aebeebe1a6..e96a669f6d 100644
--- a/components/switch/__tests__/index.test.js
+++ b/components/switch/__tests__/index.test.js
@@ -15,7 +15,7 @@ describe('Switch', () => {
     const wrapper = mount(<Switch />);
     wrapper.find('.ant-switch').getDOMNode().click();
     await new Promise(resolve => setTimeout(resolve, 0));
-    expect(wrapper.render()).toMatchSnapshot();
+    expect(wrapper.find('button').getDOMNode().getAttribute('ant-click-animating')).toBe('true');
   });
 
   it('warning if set `value`', () => {
diff --git a/components/timeline/Timeline.tsx b/components/timeline/Timeline.tsx
index 7d1dbebc55..4cfc617feb 100644
--- a/components/timeline/Timeline.tsx
+++ b/components/timeline/Timeline.tsx
@@ -29,8 +29,8 @@ const Timeline: TimelineType = props => {
     pendingDot,
     children,
     className,
-    reverse,
-    mode,
+    reverse = false,
+    mode = '' as TimelineProps['mode'],
     ...restProps
   } = props;
   const prefixCls = getPrefixCls('timeline', customizePrefixCls);
@@ -42,9 +42,11 @@ const Timeline: TimelineType = props => {
     </TimelineItem>
   ) : null;
 
-  const timeLineItems = reverse
-    ? [pendingItem, ...React.Children.toArray(children).reverse()]
-    : [...React.Children.toArray(children), pendingItem];
+  const timeLineItems = React.Children.toArray(children);
+  timeLineItems.push(pendingItem as any);
+  if (reverse) {
+    timeLineItems.reverse();
+  }
 
   const getPositionCls = (ele: React.ReactElement<any>, idx: number) => {
     if (mode === 'alternate') {
@@ -97,9 +99,4 @@ const Timeline: TimelineType = props => {
 
 Timeline.Item = TimelineItem;
 
-Timeline.defaultProps = {
-  reverse: false,
-  mode: '' as TimelineProps['mode'],
-};
-
 export default Timeline;
diff --git a/package.json b/package.json
index 6d0ae97a35..63b8115d4a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "antd",
-  "version": "4.9.0",
+  "version": "4.9.1",
   "description": "An enterprise-class UI design language and React components implementation",
   "title": "Ant Design",
   "keywords": [
@@ -60,7 +60,7 @@
     "compile": "antd-tools run compile",
     "compile:less": "antd-tools run compile:less",
     "changelog": "node ./scripts/print-changelog",
-    "predeploy": "antd-tools run clean && npm run site && cp CNAME _site && cp -r _site && npm run site:test",
+    "predeploy": "antd-tools run clean && npm run site && cp CNAME _site && npm run site:test",
     "deploy": "bisheng gh-pages --push-only --dotfiles",
     "deploy:china-mirror": "git checkout gh-pages && git pull origin gh-pages && git push git@gitee.com:ant-design/ant-design.git gh-pages",
     "dist": "antd-tools run dist",
@@ -83,7 +83,6 @@
     "sort": "npx sort-package-json",
     "sort-api": "antd-tools run sort-api-table",
     "start": "antd-tools run clean && cross-env NODE_ENV=development concurrently \"npm run color-less\" \"bisheng start -c ./site/bisheng.config.js\"",
-    "start:preact": "antd-tools run clean && cross-env NODE_ENV=development REACT_ENV=preact concurrently \"npm run color-less\" \"bisheng start -c ./site/bisheng.config.js\"",
     "test": "jest --config .jest.js --cache=false",
     "test:update": "jest --config .jest.js --cache=false -u",
     "test-all": "sh -e ./scripts/test-all.sh",
@@ -92,6 +91,7 @@
     "site:test": "jest --config .jest.site.js --cache=false --force-exit",
     "test-image": "npm run compile:less && docker-compose run tests",
     "version": "node ./scripts/generate-version",
+    "install-react-16": "npm i --no-save react@16 react-dom@16 react-test-renderer@16 enzyme-adapter-react-16",
     "argos": "argos upload imageSnapshots"
   },
   "husky": {
@@ -164,13 +164,14 @@
     "@types/jest-image-snapshot": "^4.1.0",
     "@types/lodash": "^4.14.139",
     "@types/puppeteer": "^5.4.0",
-    "@types/react": "^16.9.21",
+    "@types/react": "^17.0.0",
     "@types/react-color": "^3.0.1",
     "@types/react-copy-to-clipboard": "^4.3.0",
-    "@types/react-dom": "^16.9.5",
+    "@types/react-dom": "^17.0.0",
     "@types/warning": "^3.0.0",
     "@typescript-eslint/eslint-plugin": "^4.1.1",
     "@typescript-eslint/parser": "^4.1.1",
+    "@wojtekmaj/enzyme-adapter-react-17": "^0.3.1",
     "antd-img-crop": "^3.1.1",
     "antd-pro-merge-less": "^3.0.11",
     "antd-theme-generator": "^1.2.3",
@@ -178,9 +179,9 @@
     "array-move": "^3.0.0",
     "babel-eslint": "^10.0.1",
     "babel-plugin-add-react-displayname": "^0.0.5",
-    "bisheng": "^1.5.3",
+    "bisheng": "^2.0.0",
     "bisheng-plugin-description": "^0.1.4",
-    "bisheng-plugin-react": "^1.1.0",
+    "bisheng-plugin-react": "^1.1.2",
     "bisheng-plugin-toc": "^0.4.4",
     "bundlesize": "^0.18.0",
     "chalk": "^4.0.0",
@@ -193,7 +194,6 @@
     "docsearch.js": "^2.6.3",
     "enquire-js": "^0.2.1",
     "enzyme": "^3.10.0",
-    "enzyme-adapter-react-16": "^1.14.0",
     "enzyme-to-json": "^3.6.0",
     "esbuild-webpack-plugin": "^1.0.0",
     "eslint": "^7.9.0",
@@ -232,8 +232,6 @@
     "mockdate": "^3.0.0",
     "node-fetch": "^2.6.0",
     "open": "^7.0.3",
-    "preact": "^10.0.0",
-    "preact-compat": "^3.18.5",
     "prettier": "^2.2.0",
     "pretty-quick": "^3.0.0",
     "querystring": "^0.2.0",
@@ -243,12 +241,12 @@
     "rc-trigger": "^5.1.2",
     "rc-tween-one": "^2.4.1",
     "rc-virtual-list": "^3.0.3",
-    "react": "^16.9.0",
+    "react": "^17.0.1",
     "react-color": "^2.17.3",
     "react-copy-to-clipboard": "^5.0.1",
     "react-dnd": "^11.1.1",
     "react-dnd-html5-backend": "^11.1.1",
-    "react-dom": "^16.9.0",
+    "react-dom": "^17.0.1",
     "react-draggable": "^4.4.3",
     "react-github-button": "^0.1.11",
     "react-helmet-async": "^1.0.4",
@@ -259,7 +257,7 @@
     "react-router-dom": "^5.0.1",
     "react-sortable-hoc": "^1.11.0",
     "react-sticky": "^6.0.3",
-    "react-test-renderer": "^16.8.6",
+    "react-test-renderer": "^17.0.1",
     "react-text-loop": "^2.3.0",
     "react-virtualized": "^9.22.0",
     "react-window": "^1.8.5",
diff --git a/scripts/travis-script.sh b/scripts/travis-script.sh
deleted file mode 100755
index a749e4338d..0000000000
--- a/scripts/travis-script.sh
+++ /dev/null
@@ -1,42 +0,0 @@
-#!/bin/bash
-
-set -x
-set -e
-
-run_test() {
-  if [ "$REACT" != 16 ]; then
-    npm test -- -w 2 -u $*
-  else
-    npm test -- -w 2 $*
-  fi
-}
-
-run_test_node() {
-  if [ "$REACT" != 16 ]; then
-    npm run test-node -- -w 2 -u
-  else
-    npm run test-node -- -w 2
-  fi
-}
-
-if [ "$TEST_TYPE" = lint ]; then
-  npm run lint
-elif [ "$TEST_TYPE" = test:dist ]; then
-  npm run dist
-  node ./tests/dekko/dist.test.js
-  LIB_DIR=dist run_test
-elif [ "$TEST_TYPE" = test:lib ]; then
-  npm run compile
-  node ./tests/dekko/lib.test.js
-  LIB_DIR=lib run_test
-elif [ "$TEST_TYPE" = test:es ]; then
-  npm run compile
-  LIB_DIR=es run_test
-elif [ "$TEST_TYPE" = test:dom ]; then
-  run_test --coverage
-  if [ "$REACT" = 16 ]; then
-    bash <(curl -s https://codecov.io/bash)
-  fi
-elif [ "$TEST_TYPE" = test:node ]; then
-  run_test_node
-fi
diff --git a/site/bisheng.config.js b/site/bisheng.config.js
index 4eab8058fc..3ab016209e 100644
--- a/site/bisheng.config.js
+++ b/site/bisheng.config.js
@@ -9,7 +9,6 @@ const themeConfig = require('./themeConfig');
 const { webpack } = getWebpackConfig;
 
 const isDev = process.env.NODE_ENV === 'development';
-const usePreact = process.env.REACT_ENV === 'preact';
 
 function alertBabelConfig(rules) {
   rules.forEach(rule => {
@@ -72,16 +71,6 @@ module.exports = {
       'react-router-dom': 'ReactRouterDOM',
     };
 
-    if (usePreact) {
-      config.resolve.alias = {
-        ...config.resolve.alias,
-        react: 'preact-compat',
-        'react-dom': 'preact-compat',
-        'create-react-class': 'preact-compat/lib/create-react-class',
-        'react-router': 'react-router',
-      };
-    }
-
     if (isDev) {
       config.devtool = 'source-map';
 
@@ -124,6 +113,5 @@ module.exports = {
 
   htmlTemplateExtraData: {
     isDev,
-    usePreact,
   },
 };
diff --git a/tests/setup.js b/tests/setup.js
index 43dfd5557c..a68518eaf7 100644
--- a/tests/setup.js
+++ b/tests/setup.js
@@ -31,7 +31,10 @@ if (typeof window !== 'undefined') {
 
 const Enzyme = require('enzyme');
 
-const Adapter = require('enzyme-adapter-react-16');
+const Adapter =
+  process.env.REACT === '16'
+    ? require('enzyme-adapter-react-16') // eslint-disable-line import/no-extraneous-dependencies,import/no-unresolved
+    : require('@wojtekmaj/enzyme-adapter-react-17');
 
 Enzyme.configure({ adapter: new Adapter() });