# What changed in react-router-dom

> 13 changes in react-router-dom 7 from its official release notes, upgrade guides and advisories: 6 breaking, 7 new APIs and options. Each one cited. Sources checked 2026-10-18. HTML: https://unstale.sh/npm/react-router-dom/

To see which of these apply to a repository, run `npx @unstale/cli init` in it.

## react-router-dom 7

### Breaking changes

- The React Router Cloudflare dev proxy is removed; Cloudflare projects should use @cloudflare/vite-plugin instead. (7.0.0) — [upgrade guide](https://reactrouter.com/upgrading/v7)
- Use loaderData instead of deprecated data fields in meta arguments, meta matches, and matches returned from useMatches(). (7.0.0) — [upgrade guide](https://reactrouter.com/upgrading/v7)
- React Router v8 requires node@22.22+. (7.0.0) — [upgrade guide](https://reactrouter.com/upgrading/v7)
- React Router v8 requires react@19.2.7+ and react-dom@19.2.7+. (7.0.0) — [upgrade guide](https://reactrouter.com/upgrading/v7)
- The re-export package is removed; import DOM-specific APIs from react-router/dom and other APIs from react-router. (7.0.0) — [upgrade guide](https://reactrouter.com/upgrading/v7)
- Framework mode requires vite@7+ and the future.v8_viteEnvironmentApi flag. (7.0.0) — [upgrade guide](https://reactrouter.com/upgrading/v7)

### New APIs and options

- Opt in to middleware that runs code before and after Response generation for a matched path. (7.0.0) — [upgrade guide](https://reactrouter.com/upgrading/v7)
- Pass the raw HTTP request to handlers instead of normalizing request.url; use the sibling url parameter for normalized routing logic. (7.0.0) — [upgrade guide](https://reactrouter.com/upgrading/v7)
- Opt in to splitting client-side route exports into independently loadable chunks, so they can run while the route component downloads. (7.0.0) — [upgrade guide](https://reactrouter.com/upgrading/v7)
- Preserve trailing-slash semantics in data request URLs using the /_.data format for trailing-slash routes; the root data request changes to /_.data. (7.0.0) — [upgrade guide](https://reactrouter.com/upgrading/v7)
- Enable support for Vite's experimental Environment API; custom configuration relying on isSsrBuild may need to move under per-environment configuration. (7.0.0) — [upgrade guide](https://reactrouter.com/upgrading/v7)
- A sibling handler parameter provides a URL instance representing the normalized location when request.url is passed through raw. (7.0.0) — [upgrade guide](https://reactrouter.com/upgrading/v7)
- The Architect adapter will use event.requestContext.domainName by default, falling back to the Host header; this option can opt in to that behavior on v7. (7.0.0) — [upgrade guide](https://reactrouter.com/upgrading/v7)