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@timdorr timdorr released this 18 Mar 16:37
v5.0.0
ea8eba8

Note: While this does have a major version bump, it is actually a minor release. We screwed up some of the dependency version selection in 4.3.1, which necessitated a major bump. See this blog post for details.

⚠️ Upgrade Warning ⚠️

Please ensure you have upgraded both react-router and react-router-dom (react-router-native for RN users) to the exact same version. If different versions of those two packages are in your application, you will get errors when using <Link> and other react-router-dom-specific components. You can ensure you have the correct versions of both packages in your app using npm ls react-router react-router-dom.

Breaking Changes

  • Since the old context API is no longer used, any access to the old context will fail. Use of the react router context is not supported, please use withRouter() or a <Route/> instead.
  • Due to the new context API, mixing of imports will now result in an exception:
// Be careful, this won't work anymore!
import BrowserRouter from 'react-router-dom/BrowserRouter';
import { Route } from 'react-router-dom';

<BrowserRouter>
  <Route />
</BrowserRouter>

Refactor as follows:

// These are both from the same build and use the same context object
// so there won't be a mismatch :)
import { BrowserRouter, Route } from 'react-router-dom';
  • In development mode, we now throw an error when using 2 different builds (see b2c6fa0), i.E. combining CJS imports with ESM imports.

New Features

<Route path={["/BigApple", "/NYC", "NewYork"]} component={NewYork} />

Full Changelog

  • <Route /> now supports multiple child nodes when using react >= 16.0.
  • Migrated to new react context API, with a polyfill for react versions < 16.2
  • Removed deprecated lifecycle methods componentWillMount and componentWillReceiveProps
  • Introduced more warnings in development builds
  • Changed build-process to rollup:
    • Smaller build size
    • Package now includes pre-minified files
    • Package now consists of single-file builds that include all modules.
  • Upgraded to history 4.9.0
  • Per file imports are deprecated and will be removed in a future major version. For now, a warning will be logged.
  • Made sure that react router conforms to react <StrictMode/>
  • Fixed <Link /> not working properly with target="_self" - #6138 (thanks @ericyang89)
  • Fixed prop-type warning when using forwardRef - #6417 (thanks @frehner and @exon)
  • Added support for createRef in - #6567 (thanks @gcangussu)
  • Removed use of eval in development to be compliant with unsafe-eval CSP - #6611
  • Migrated to babel-preset-env
  • Improved testing infrastructure to improve developer workflow
  • Several docs improvements - #6410 (thanks @justsml)
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