Overview

Upgrade vite from v6.x to v7.x:

• vite: ^6.0.0 → ^7.x

Also check compatibility of vite-plugin-imagemin and @sveltejs/vite-plugin-svelte with Vite v7.

Breaking Changes in v7

• Requires Node.js 20+
• build.target default changed
• Some plugin API changes
• import.meta.env type changes

Required Work

1. Update package

npm install vite@^7

2. Check plugin compatibility

• vite-plugin-imagemin@^0.6.1 — verify Vite v7 support
• @sveltejs/vite-plugin-svelte — ensure compatible version is installed

3. Update vite.config.ts if needed

Review for any deprecated options.

4. Testing Checklist

• npm run dev works
• npm run build completes successfully
• Image optimisation (imagemin) works
• HMR works in dev mode
• Production preview works

Resources

• Vite v7 migration guide
• Vite changelog

Priority

Low — Vite v6 is still actively supported.

Part of

Epic: Major dependency upgrades tracking issue