Rsbuild v1 to v2 upgrade

Workflow

1. Confirm current setup

   • Read package.json to identify Rsbuild and plugin packages in use.
   • Locate the Rsbuild config file (commonly rsbuild.config.(ts|js|mjs|cjs)).

2. Open the official upgrade guide

   • Use the v1 → v2 guide as the source of truth:
     • https://rsbuild.rs/guide/upgrade/v1-to-v2

3. Plan the upgrade path

   • 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

   • Bump @rsbuild/core to v2
   • Bump Rsbuild plugins to latest versions via npx taze major --include /rsbuild/ -w -r

5. Apply config and code changes

   • Update the Rsbuild config to match v2 options and defaults.
   • Remove deprecated or unsupported settings.

6. Validate

   • Run the build and dev commands.
   • Run project tests or type checks.
   • Fix any warnings or errors surfaced by the new version.