Support for Vite 8

[eyy]

Reproduction

mkdir vite8-rr
cd vite8-rr/
npm init -y
npm i vite
npm i react-router @react-router/dev

(inspired by #14910, thanks!)

System Info

System:
    OS: Linux 6.8 Ubuntu 24.04.4 LTS 24.04.4 LTS (Noble Numbat)
    CPU: (16) x64 12th Gen Intel(R) Core(TM) i7-1260P
    Memory: 13.09 GB / 31.06 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 25.2.1 - /home/etai/.nvm/versions/node/v25.2.1/bin/node
    npm: 11.6.2 - /home/etai/.nvm/versions/node/v25.2.1/bin/npm
    pnpm: 10.26.1 - /home/etai/.local/share/pnpm/pnpm
    bun: 1.3.10 - /home/etai/.bun/bin/bun
    Watchman: 4.9.0 - /usr/bin/watchman
  Browsers:
    Chrome: 146.0.7680.153
    Firefox: 148.0.2
    Firefox Developer Edition: 148.0.2
  npmPackages:
    vite: ^8.0.2 => 8.0.2

Used Package Manager

npm

Expected Behavior

should work with the new vite

Actual Behavior

npm error code ERESOLVE
npm error ERESOLVE unable to resolve dependency tree
npm error
npm error While resolving: vite8-rr@1.0.0
npm error Found: vite@8.0.2
npm error node_modules/vite
npm error   vite@"^8.0.2" from the root project
npm error   peer vite@"*" from @vitejs/plugin-rsc@0.5.21
npm error   node_modules/@vitejs/plugin-rsc
npm error     peerOptional @vitejs/plugin-rsc@"~0.5.7" from @react-router/dev@7.13.2
npm error     node_modules/@react-router/dev
npm error       @react-router/dev@"*" from the root project
npm error   1 more (@vitejs/devtools)
npm error
npm error Could not resolve dependency:
npm error peer vite@"^5.1.0 || ^6.0.0 || ^7.0.0" from @react-router/dev@7.13.2
npm error node_modules/@react-router/dev
npm error   @react-router/dev@"*" from the root project
npm error
npm error Fix the upstream dependency conflict, or retry
npm error this command with --force or --legacy-peer-deps
npm error to accept an incorrect (and potentially broken) dependency resolution.

[timdorr]

This was completed in #14876 and will be in the next minor release.

[saschatimme]

Any ETA on the next minor release?