VasilyShelkov · thomaseizinger · Feb 3, 2021 · Feb 3, 2021 · Feb 3, 2021 · Feb 3, 2021
diff --git a/.eslintrc.json b/.eslintrc.json
@@ -4,7 +4,8 @@
     "browser": true,
     "commonjs": true,
     "node": true,
-    "es6": true
+    "es6": true,
+    "jest": true
   },
   "parserOptions": {
     "ecmaVersion": 2018

diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
@@ -1,2 +1,2 @@
-packages/ @ianschmitz @iansu @mrmckeb @petetnt
-docusaurus/ @ianschmitz @iansu @mrmckeb
+packages/ @iansu @mrmckeb @petetnt
+docusaurus/ @iansu @mrmckeb
diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -32,7 +32,7 @@ labels: 'issue: bug report, needs triage'
     * yarn.lock
 
   Then you need to decide which package manager you prefer to use.
-  We support both npm (https://npmjs.com) and yarn (http://yarnpkg.com/).
+  We support both npm (https://npmjs.com) and yarn (https://yarnpkg.com/).
   However, **they can't be used together in one project** so you need to pick one.
 
   If you decided to use npm, run this in your project directory:

diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
@@ -0,0 +1,36 @@
+name: Integration Tests
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  job:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
+        node: ['14', '16']
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup node
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node }}
+      - name: Cache dependencies
+        id: cache
+        uses: actions/cache@v2
+        with:
+          path: |
+            node_modules
+            */*/node_modules
+          key: ${{ runner.os }}-${{ hashFiles('**/yarn.lock', './yarn.lock') }}
+      - name: Install packages
+        if: steps.cache.outputs.cache-hit != 'true'
+        run: yarn --frozen-lockfile --prefer-offline
+      - name: Run integration tests
+        run: yarn test:integration
diff --git a/CHANGELOG-0.x.md b/CHANGELOG-0.x.md
diff --git a/CHANGELOG-1.x.md b/CHANGELOG-1.x.md
@@ -1365,7 +1365,7 @@ or
 yarn add --dev --exact [email protected]
 ```
 
-If you previously had issues with an `Invalid Host Header` error, [follow these new instructions](https://github.com/facebook/create-react-app/blob/master/packages/react-scripts/template/README.md#invalid-host-header-errors-after-configuring-proxy) to fix it.
+If you previously had issues with an `Invalid Host Header` error, [follow these new instructions](https://github.com/facebook/create-react-app/blob/main/packages/react-scripts/template/README.md#invalid-host-header-errors-after-configuring-proxy) to fix it.
 
 ## 1.0.1 (May 19, 2017)
 
@@ -1547,7 +1547,7 @@ You can automatically convert your project to fix them by running the [correspon
 
 #### How do I make my tests work with Jest 20?
 
-Please refer to the [Jest 19](https://facebook.github.io/jest/blog/2017/02/21/jest-19-immersive-watch-mode-test-platform-improvements.html#breaking-changes) and [Jest 20](http://facebook.github.io/jest/blog/2017/05/06/jest-20-delightful-testing-multi-project-runner.html#breaking-changes) breaking changes for migration instructions.
+Please refer to the [Jest 19](https://facebook.github.io/jest/blog/2017/02/21/jest-19-immersive-watch-mode-test-platform-improvements.html#breaking-changes) and [Jest 20](https://facebook.github.io/jest/blog/2017/05/06/jest-20-delightful-testing-multi-project-runner.html#breaking-changes) breaking changes for migration instructions.
 
 If you use snapshots, you will likely need to update them once because of the change in format.
 
@@ -1572,7 +1572,7 @@ If you still have the problem please file an issue.
 
 Unhandled Promise rejections will now crash tests. You can fix them by explicitly catching the errors you don’t care about.
 
-#### How to turn my app into a [Progressive Web App](https://github.com/facebook/create-react-app/blob/master/packages/react-scripts/template/README.md#making-a-progressive-web-app)?
+#### How to turn my app into a [Progressive Web App](https://github.com/facebook/create-react-app/blob/main/packages/react-scripts/template/README.md#making-a-progressive-web-app)?
 
 After the regular update procedure above, add these line to `<head>` in `public/index.html`:
 
@@ -1588,9 +1588,7 @@ After the regular update procedure above, add these line to `<head>` in `public/
 Add `<noscript>` to `<body>` in `public/index.html`:
 
 ```html
-<noscript>
-  You need to enable JavaScript to run this app.
-</noscript>
+<noscript> You need to enable JavaScript to run this app. </noscript>
 ```
 
 Then create a file called `public/manifest.json` that looks like this:

diff --git a/CHANGELOG-2.x.md b/CHANGELOG-2.x.md
@@ -823,7 +823,7 @@ import 'react-app-polyfill/ie9'; // For IE 9-11 support
 import 'react-app-polyfill/ie11'; // For IE 11 support
 ```
 
-You can read more about [these polyfills here](https://github.com/facebook/create-react-app/tree/master/packages/react-app-polyfill).
+You can read more about [these polyfills here](https://github.com/facebook/create-react-app/tree/main/packages/react-app-polyfill).
 
 ### Dynamic `import()` of a CommonJS module now has a `.default` property
 
@@ -845,7 +845,7 @@ We previously allowed code splitting with a webpack-specific directive, `require
 **Single Module**
 
 ```js
-require.ensure(['module-a'], function() {
+require.ensure(['module-a'], function () {
   var a = require('module-a');
   // ...
 });
@@ -859,7 +859,7 @@ import('module-a').then(a => {
 **Multiple Module**
 
 ```js
-require.ensure(['module-a', 'module-b'], function() {
+require.ensure(['module-a', 'module-b'], function () {
   var a = require('module-a');
   var b = require('module-b');
   // ...
@@ -913,7 +913,7 @@ Next, create `src/setupProxy.js` and place the following contents in it:
 ```js
 const proxy = require('http-proxy-middleware');
 
-module.exports = function(app) {
+module.exports = function (app) {
   // ...
 };
 ```
@@ -936,7 +936,7 @@ Place entries into `src/setupProxy.js` like so:
 ```js
 const proxy = require('http-proxy-middleware');
 
-module.exports = function(app) {
+module.exports = function (app) {
   app.use(proxy('/api', { target: 'http://localhost:5000/' }));
   app.use(proxy('/*.svg', { target: 'http://localhost:5000/' }));
 };

diff --git a/CHANGELOG-3.x.md b/CHANGELOG-3.x.md
@@ -330,7 +330,7 @@ v3.3.0 is a minor release that adds new features, including custom templates and
 
 You can now create a new app using custom templates.
 
-We've published our existing templates as [`cra-template`](https://github.com/facebook/create-react-app/tree/master/packages/cra-template) and [`cra-template-typescript`](https://github.com/facebook/create-react-app/tree/master/packages/cra-template-typescript), but we expect to see many great templates from the community over the coming weeks.
+We've published our existing templates as [`cra-template`](https://github.com/facebook/create-react-app/tree/main/packages/cra-template) and [`cra-template-typescript`](https://github.com/facebook/create-react-app/tree/main/packages/cra-template-typescript), but we expect to see many great templates from the community over the coming weeks.
 
 The below command shows how you can create a new app with `cra-template-typescript`.
 

diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,124 @@
+## 4.0.3 (2021-02-22)
+
+v4.0.3 is a maintenance release that includes minor bug fixes and dependency updates.
+
+#### :bug: Bug Fix
+
+- `react-scripts`
+  - [#10590](https://github.com/facebook/create-react-app/pull/10590) Upgrade eslint-webpack-plugin to fix opt-out flag ([@mrmckeb](https://github.com/mrmckeb))
+
+#### :house: Internal
+
+- `react-dev-utils`
+  - [#10412](https://github.com/facebook/create-react-app/pull/10412) update immer to 8.0.1 to address vulnerability ([@wclem4](https://github.com/wclem4))
+- `create-react-app`
+  - [#10384](https://github.com/facebook/create-react-app/pull/10384) tests: update test case to match the description ([@jamesgeorge007](https://github.com/jamesgeorge007))
+
+#### Committers: 4
+
+- Brody McKee ([@mrmckeb](https://github.com/mrmckeb))
+- Dion Woolley ([@Awarua-](https://github.com/Awarua-))
+- James George ([@jamesgeorge007](https://github.com/jamesgeorge007))
+- Walker Clem ([@wclem4](https://github.com/wclem4))
+
+# Migrating from 4.0.2 to 4.0.3
+
+Inside any created project that has not been ejected, run:
+
+```bash
+npm install --save --save-exact [email protected]
+```
+
+or
+
+```
+yarn add --exact [email protected]
+```
+
+## 4.0.2 (2021-02-03)
+
+v4.0.2 is a maintenance release that includes minor bug fixes and documentation updates.
+
+#### :rocket: New Feature
+
+- `react-scripts`
+  - [#8986](https://github.com/facebook/create-react-app/pull/8986) Add support for new BUILD_PATH advanced configuration variable ([@ajhyndman](https://github.com/ajhyndman))
+
+#### :bug: Bug Fix
+
+- `react-scripts`
+  - [#10170](https://github.com/facebook/create-react-app/pull/10170) Add opt-out for eslint-webpack-plugin ([@mrmckeb](https://github.com/mrmckeb))
+  - [#9872](https://github.com/facebook/create-react-app/pull/9872) fix(react-scripts): add missing peer dependency react and update react-refresh-webpack-plugin ([@merceyz](https://github.com/merceyz))
+  - [#9964](https://github.com/facebook/create-react-app/pull/9964) Add TypeScript 4.x as peerDependency to react-scripts ([@sheepsteak](https://github.com/sheepsteak))
+
+#### :nail_care: Enhancement
+
+- `react-scripts`
+  - [#9977](https://github.com/facebook/create-react-app/pull/9977) Move ESLint cache file into node_modules ([@ehsankhfr](https://github.com/ehsankhfr))
+  - [#9569](https://github.com/facebook/create-react-app/pull/9569) Improve vendor chunk names in development ([@jrr](https://github.com/jrr))
+
+#### :memo: Documentation
+
+- [#9473](https://github.com/facebook/create-react-app/pull/9473) docs: add missing override options for Jest config ([@tobiasbueschel](https://github.com/tobiasbueschel))
+- [#10314](https://github.com/facebook/create-react-app/pull/10314) Update using-the-public-folder.md ([@Avivhdr](https://github.com/Avivhdr))
+- [#10214](https://github.com/facebook/create-react-app/pull/10214) Remove references to Node 8 ([@ianschmitz](https://github.com/ianschmitz))
+
+#### :house: Internal
+
+- `react-scripts`
+  - [#10027](https://github.com/facebook/create-react-app/pull/10027) appTsConfig immutability handling by immer ([@josezone](https://github.com/josezone))
+- `create-react-app`
+  - [#10217](https://github.com/facebook/create-react-app/pull/10217) Fix CI tests ([@ianschmitz](https://github.com/ianschmitz))
+- `react-dev-utils`, `react-error-overlay`, `react-scripts`
+  - [#10091](https://github.com/facebook/create-react-app/pull/10091) Recovered some integration tests ([@maxsbelt](https://github.com/maxsbelt))
+
+#### :hammer: Underlying Tools
+
+- `react-scripts`
+  - [#10216](https://github.com/facebook/create-react-app/pull/10216) Revert "Update postcss packages" ([@ianschmitz](https://github.com/ianschmitz))
+  - [#9988](https://github.com/facebook/create-react-app/pull/9988) Upgrade sass-loader ([@ehsankhfr](https://github.com/ehsankhfr))
+  - [#10003](https://github.com/facebook/create-react-app/pull/10003) Update postcss packages ([@raix](https://github.com/raix))
+  - [#10213](https://github.com/facebook/create-react-app/pull/10213) Upgrade @svgr/webpack to fix build error ([@jabranr](https://github.com/jabranr))
+- `react-dev-utils`
+  - [#10198](https://github.com/facebook/create-react-app/pull/10198) remove chalk from formatWebpackMessages ([@jasonwilliams](https://github.com/jasonwilliams))
+- `cra-template-typescript`
+  - [#10141](https://github.com/facebook/create-react-app/pull/10141) chore: bump typescript version ([@trainto](https://github.com/trainto))
+- `cra-template-typescript`, `cra-template`
+  - [#10143](https://github.com/facebook/create-react-app/pull/10143) chore: bump web-vital dependency version ([@sahilpurav](https://github.com/sahilpurav))
+
+#### Committers: 15
+
+- Andrew Hyndman ([@ajhyndman](https://github.com/ajhyndman))
+- Aviv Hadar ([@Avivhdr](https://github.com/Avivhdr))
+- Brody McKee ([@mrmckeb](https://github.com/mrmckeb))
+- Chris Shepherd ([@sheepsteak](https://github.com/sheepsteak))
+- EhsanKhaki ([@ehsankhfr](https://github.com/ehsankhfr))
+- Hakjoon Sim ([@trainto](https://github.com/trainto))
+- Ian Schmitz ([@ianschmitz](https://github.com/ianschmitz))
+- Jabran Rafique⚡️ ([@jabranr](https://github.com/jabranr))
+- Jason Williams ([@jasonwilliams](https://github.com/jasonwilliams))
+- John Ruble ([@jrr](https://github.com/jrr))
+- Kristoffer K. ([@merceyz](https://github.com/merceyz))
+- Morten N.O. Nørgaard Henriksen ([@raix](https://github.com/raix))
+- Sahil Purav ([@sahilpurav](https://github.com/sahilpurav))
+- Sergey Makarov ([@maxsbelt](https://github.com/maxsbelt))
+- Tobias Büschel ([@tobiasbueschel](https://github.com/tobiasbueschel))
+- mad-jose ([@josezone](https://github.com/josezone))
+
+# Migrating from 4.0.1 to 4.0.2
+
+Inside any created project that has not been ejected, run:
+
+```bash
+npm install --save --save-exact [email protected]
+```
+
+or
+
+```
+yarn add --exact [email protected]
+```
+
 ## 4.0.1 (2020-11-23)
 
 v4.0.1 is a maintenance release that includes minor bug fixes and documentation updates.

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -73,7 +73,7 @@ packages/
 
 #### ~~[react-dev-utils](https://github.com/facebook/create-react-app/tree/master/packages/react-dev-utils)~~
 
-#### [react-scripts](https://github.com/facebook/create-react-app/tree/master/packages/react-scripts)
+#### [react-scripts](https://github.com/facebook/create-react-app/tree/main/packages/react-scripts)
 
 This package is the heart of the project, which contains the scripts for setting up the development server, building production builds, configuring all software used, etc.<br>
 All functionality must be retained (and configuration given to the user) if they choose to eject.
@@ -155,7 +155,7 @@ Make sure to test the released version! If you want to be extra careful, you can
 1. Go to the `docusaurus/website` directory
 2. Run `yarn build`
 3. You'll need an [access token for the GitHub API](https://help.github.com/articles/creating-an-access-token-for-command-line-use/). Save it to this environment variable: `export GITHUB_AUTH="..."`
-4. Run `GIT_USER=<GITHUB_USERNAME> CURRENT_BRANCH=master USE_SSH=true yarn deploy`
+4. Run `GIT_USER=<GITHUB_USERNAME> CURRENT_BRANCH=main USE_SSH=true yarn deploy`
 
 ---
 

diff --git a/README.md b/README.md
@@ -59,7 +59,7 @@ These are all controlled by the all important [`/public/manifest.json`](https://
 
 ## Creating a Browser Extension
 
-**You’ll need to have Node 10.16.0 or later version on your local development machine** (but it’s not required on the server). We recommend using the latest LTS version. You can use [nvm](https://github.com/creationix/nvm#installation) (macOS/Linux) or [nvm-windows](https://github.com/coreybutler/nvm-windows#node-version-manager-nvm-for-windows) to switch Node versions between different projects.
+**You’ll need to have Node 14.0.0 or later version on your local development machine** (but it’s not required on the server). We recommend using the latest LTS version. You can use [nvm](https://github.com/creationix/nvm#installation) (macOS/Linux) or [nvm-windows](https://github.com/coreybutler/nvm-windows#node-version-manager-nvm-for-windows) to switch Node versions between different projects.
 
 To create a new browser extension, you may choose one of the following methods:
 

diff --git a/azure-pipelines-test-job.yml b/azure-pipelines-test-job.yml
@@ -6,8 +6,8 @@ parameters:
   name: ''
   testScript: ''
   configurations:
-    LinuxNode10: { vmImage: 'ubuntu-16.04', nodeVersion: 10.x }
-    LinuxNode12: { vmImage: 'ubuntu-16.04', nodeVersion: 12.x }
+    LinuxNode14: { vmImage: 'ubuntu-latest', nodeVersion: 14.x }
+    LinuxNode16: { vmImage: 'ubuntu-latest', nodeVersion: 16.x }
 
 jobs:
   - job: ${{ parameters.name }}

diff --git a/azure-pipelines.yml b/azure-pipelines.yml
@@ -3,7 +3,7 @@
 #
 
 trigger:
-  - master
+  - main
 
 variables:
   CI: true
@@ -26,10 +26,10 @@ jobs:
   # ******************************************************************************
   # Installs test suite
   # ******************************************************************************
-  - template: azure-pipelines-test-job.yml
-    parameters:
-      name: Installs
-      testScript: tasks/e2e-installs.sh
+  # - template: azure-pipelines-test-job.yml
+  #   parameters:
+  #     name: Installs
+  #     testScript: tasks/e2e-installs.sh
 
   # ******************************************************************************
   # Kitchensink test suite
@@ -42,25 +42,25 @@ jobs:
   # ******************************************************************************
   # Kitchensink Eject test suite
   # ******************************************************************************
-  - template: azure-pipelines-test-job.yml
-    parameters:
-      name: KitchensinkEject
-      testScript: tasks/e2e-kitchensink-eject.sh
+  # - template: azure-pipelines-test-job.yml
+  #   parameters:
+  #     name: KitchensinkEject
+  #     testScript: tasks/e2e-kitchensink-eject.sh
 
   # ******************************************************************************
   # Behavior test suite
   # ******************************************************************************
-  - template: azure-pipelines-test-job.yml
-    parameters:
-      name: Behavior
-      testScript: tasks/e2e-behavior.sh
-      configurations:
-        LinuxNode10: { vmImage: 'ubuntu-16.04', nodeVersion: 10.x }
-        LinuxNode12: { vmImage: 'ubuntu-16.04', nodeVersion: 12.x }
-        WindowsNode10: { vmImage: 'windows-2019', nodeVersion: 10.x }
-        WindowsNode12: { vmImage: 'windows-2019', nodeVersion: 12.x }
-        MacNode10: { vmImage: 'macOS-10.15', nodeVersion: 10.x }
-        MacNode12: { vmImage: 'macOS-10.15', nodeVersion: 12.x }
+  # - template: azure-pipelines-test-job.yml
+  #   parameters:
+  #     name: Behavior
+  #     testScript: tasks/e2e-behavior.sh
+  #     configurations:
+  #       LinuxNode14: { vmImage: 'ubuntu-latest', nodeVersion: 14.x }
+  #       LinuxNode16: { vmImage: 'ubuntu-latest', nodeVersion: 16.x }
+  #       WindowsNode14: { vmImage: 'windows-2019', nodeVersion: 14.x }
+  #       WindowsNode16: { vmImage: 'windows-2019', nodeVersion: 16.x }
+  #       MacNode14: { vmImage: 'macOS-10.15', nodeVersion: 14.x }
+  #       MacNode16: { vmImage: 'macOS-10.15', nodeVersion: 16.x }
 
   # ******************************************************************************
   # Old Node test suite