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This PR contains the following updates:
1.1.1
->3.4.0
Release Notes
facebook/create-react-app
v3.4.0
Compare Source
v3.4.0 is a minor release that adds new features, including support for SSL and setting
PUBLIC_URL
in development. It also includes a fix for Hot Module Reloading with CSS Modules as well as other bug fixes.🐛 Bug Fix
react-scripts
create-react-app
,react-dev-utils
,react-error-overlay
react-dev-utils
cra-template-typescript
,cra-template
cra-template-typescript
💅 Enhancement
react-dev-utils
,react-scripts
cra-template-typescript
cra-template-typescript
,cra-template
react-scripts
📝 Documentation
cra-template-typescript
,cra-template
,react-dev-utils
,react-error-overlay
,react-scripts
🔨 Underlying Tools
react-dev-utils
react-scripts
Committers: 18
Migrating from 3.3.1 to 3.4.0
Inside any created project that has not been ejected, run:
or
v3.3.1
Compare Source
v3.3.1 is a maintenance release that includes minor bug fixes and documentation updates.
🐛 Bug Fix
cra-template
react-scripts
babel-preset-react-app
react-dev-utils
💅 Enhancement
react-error-overlay
cra-template-typescript
cra-template-typescript
,cra-template
,react-scripts
create-react-app
cra-template-typescript
,cra-template
eslint-config-react-app
📝 Documentation
babel-preset-react-app
?.
is right,.?
is not (@vadzim)🏠 Internal
create-react-app
🔨 Underlying Tools
babel-preset-react-app
,create-react-app
,react-dev-utils
,react-error-overlay
,react-scripts
react-dev-utils
babel-plugin-named-asset-import
create-react-app
,react-app-polyfill
,react-dev-utils
,react-error-overlay
,react-scripts
create-react-app
,react-dev-utils
,react-error-overlay
react-error-overlay
,react-scripts
Committers: 29
Migrating from 3.3.0 to 3.3.1
Inside any created project that has not been ejected, run:
or
v3.3.0
Compare Source
v3.3.0 is a minor release that adds new features, including custom templates and support for the new optional chaining and nullish coalescing operators.
Custom Templates
You can now create a new app using custom templates.
We've published our existing templates as
cra-template
andcra-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
.Note that you can omit the prefix
cra-template-
when specifying which template you would like. For TypeScript users, we're deprecating--typescript
in favour of--template typescript
.If you don't set a template, we'll create your new app with
cra-template
- which is just a new name for our base template.Optional Chaining and Nullish Coalescing Operators
We now support the optional chaining and nullish coalescing operators!
If you're using TypeScript, you will need to upgrade your
typescript
dependency to3.7.0
or later if you wish to use the new operators.If you're using Visual Studio Code 1.40 (the latest as of this release) or earlier, you will need to configure your editor if you want it to understand the new operators.
If you're using TypeScript in your project and have already upgrade its version as described above, then you can configure VS Code to
Use Workspace Version
of TypeScript. If your project isn't using TypeScript, you can use the JavaScript and TypeScript Nightly extension until VS Code releases a newer version including TypeScript3.7.0
or newer.Numeric Separators
We've added support for numeric separators to improve readability of numeric literals.
no-unexpected-multiline
We've removed this rule as it is not compatible with Prettier. If you rely on this rule you can re-enable it by extending our ESLint config and adding the following:
🚀 New Feature
babel-preset-react-app
babel-preset-react-app
,react-dev-utils
cra-template-typescript
,cra-template
,create-react-app
,react-scripts
💥 Breaking Change
create-react-app
,react-dev-utils
,react-scripts
#7988 Bump webpack-dev-server (@ianschmitz)
NOTE: This is only a breaking change if you're using
react-dev-utils
outside of Create React App.🐛 Bug Fix
eslint-config-react-app
create-react-app
react-scripts
react-dev-utils
💅 Enhancement
cra-template-typescript
,cra-template
react-scripts
cra-template
prefers-reduced-motion
(@donavon)create-react-app
,react-error-overlay
babel-preset-react-app
📝 Documentation
react-dev-utils
,react-scripts
babel-preset-react-app
react-dev-utils
react-scripts
🏠 Internal
react-scripts
eslint-config-react-app
create-react-app
cra-template-typescript
create-react-app
,react-dev-utils
,react-scripts
🔨 Underlying Tools
babel-preset-react-app
,cra-template-typescript
,cra-template
,create-react-app
,react-dev-utils
,react-error-overlay
,react-scripts
create-react-app
,react-dev-utils
,react-scripts
react-app-polyfill
babel-preset-react-app
,react-app-polyfill
,react-dev-utils
,react-scripts
react-scripts
babel-preset-react-app
,cra-template-typescript
,create-react-app
,react-app-polyfill
,react-dev-utils
,react-error-overlay
,react-scripts
react-dev-utils
babel-plugin-named-asset-import
,babel-preset-react-app
,react-error-overlay
,react-scripts
react-error-overlay
,react-scripts
Committers: 42
Migrating from 3.2.0 to 3.3.0
Inside any created project that has not been ejected, run:
or
v3.2.0
Compare Source
v3.2.0 is a minor release that adds support for production profiling and ignoring TypeScript type errors to make migrating JavaScript projects to TypeScript easier. It also includes other minor bug fixes and documentation updates.
🚀 New Feature
react-scripts
react-dev-utils
,react-scripts
🐛 Bug Fix
react-scripts
react-app-polyfill
💅 Enhancement
react-scripts
react-dev-utils
📝 Documentation
🏠 Internal
react-scripts
react-dev-utils
,react-scripts
🔨 Underlying Tools
react-scripts
Committers: 19
Migrating from 3.1.2 to 3.2.0
Inside any created project that has not been ejected, run:
or
v3.1.2
Compare Source
v3.1.2 is a maintenance release that includes minor bug fixes and documentation updates.
🐛 Bug Fix
react-scripts
babel-preset-react-app
,react-error-overlay
,react-scripts
💅 Enhancement
react-scripts
📝 Documentation
🏠 Internal
react-scripts
🔨 Underlying Tools
babel-plugin-named-asset-import
,confusing-browser-globals
,react-app-polyfill
,react-dev-utils
,react-error-overlay
,react-scripts
react-scripts
eslint-config-react-app
,react-scripts
Committers: 20
Migrating from 3.1.1 to 3.1.2
Inside any created project that has not been ejected, run:
or
v3.1.1
Compare Source
v3.1.1 is a maintenance release that includes minor bug fixes and documentation updates.
🐛 Bug Fix
react-scripts
💅 Enhancement
eslint-config-react-app
📝 Documentation
Committers: 3
Migrating from 3.1.0 to 3.1.1
Optionally remove
Disallow: /static/
frompublic/robots.txt
if you want to allow your images and other static files to be indexed by search engines #7508Inside any created project that has not been ejected, run:
or
v3.1.0
Compare Source
v3.1.0 is a minor release that adds ESLint 6 support as well as experimental support for extended and customizing the ESLint config along with other minor bug fixes and documentation updates. The upgrade to ESLint 6 is a breaking change only if you're using
eslint-config-react-app
orreact-error-overlay
outside of Create React App.v3.0.1
Compare Source
v3.0.1 is a maintenance release that adjusts some ESLint rules for TypeScript along with other minor bug fixes and documentation updates.
💥 Breaking Change
babel-preset-react-app
🐛 Bug Fix
react-error-overlay
,react-scripts
babel-jest
(@ianschmitz)babel-jest
preflight error (@ianschmitz)eslint-config-react-app
no-dupe-class-members
rule for TypeScript (@ianschmitz)no-useless-constructor
rule in TypeScript (@ianschmitz)eslint-config-react-app
,react-scripts
default-case
lint rule for TypeScript (@ianschmitz)react-dev-utils
💅 Enhancement
react-dev-utils
,react-scripts
babel-preset-react-app
react-scripts
📝 Documentation
react-app-polyfill
🏠 Internal
react-scripts
Object.assign
fromMiniCssExtractPlugin
options (@swashcap)Committers: 12
Migrating from 3.0.0 to 3.0.1
Inside any created project that has not been ejected, run:
or
v3.0.0
Compare Source
Inside any created project that has not been ejected, run:
or
NOTE: You may need to delete your
node_modules
folder and reinstall your dependencies by runningyarn
(ornpm install
) if you encounter errors after upgrading.If you previously ejected but now want to upgrade, one common solution is to find the commits where you ejected (and any subsequent commits changing the configuration), revert them, upgrade, and later optionally eject again. It’s also possible that the feature you ejected for is now supported out of the box.
Breaking Changes
Like any major release,
react-scripts@3.0.0
contains a few breaking changes. We expect that they won't affect every user, but we recommend you look over this section to see if something is relevant to you. If we missed something, please file a new issue.Jest 24
We've updated from Jest 23 to get the latest improvements in Jest 24. We've noticed some differences in snapshot serialization in Jest 24, so you may need to adjust your tests slightly once you update. You can read more about what's changed in the Jest 24 blog post.
Hooks support
We now enforce Rules of Hooks with
eslint-plugin-react-hooks
. If you are breaking any of the rules of Hooks this will cause your build to fail.TypeScript linting
We now lint TypeScript files. You can see the list of rules we enforce to check if your project is compatible. If you're using Visual Studio Code you can follow our guide to setup up your editor to display lint warnings.
browserslist
support in @babel/preset-envThe
browserslist
config in yourpackage.json
is now used to control the output of your JavaScript files. You can use separate configuration fordevelopment
andproduction
. See here for a good starting point which gives a good development experience, especially when using language features such as async/await, but still provides high compatibility with many browRenovate configuration
📅 Schedule: At any time (no schedule defined).
🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.
♻️ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.
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