Rspack 1.x to v2 Upgrade

Workflow

1. Confirm current setup

   • Read package.json to identify Rspack packages in use.
   • Locate the Rspack config file (commonly rspack.config.(ts|js|mjs|cjs)).

2. Open the official migration guide

   • Use the official guide as the single source of truth:
     • https://rspack.rs/guide/migration/rspack_1.x

3. Plan required changes

   • Compare the current project config with the migration guide.
   • List breaking changes that apply to the project’s current config and plugins.
   • Note any removed or renamed options, defaults, or plugin APIs.

4. Update dependencies

   • Upgrade Rspack packages to v2: @rspack/core, @rspack/cli, @rspack/dev-server, @rspack/plugin-react-refresh.