Migrating to Nuxt 4 involves moving existing project directories such as assets, components, and more into a newly created app/ folder. This change necessitates updates to hardcoded paths in package.json and CI/CD configurations to reflect the new directory structure. Additionally, Nuxt 4 improves TypeScript handling by introducing separate virtual TypeScript projects for app, server, and shared contexts, eliminating issues related to type-bleed. This enhances type safety and clarity between environments, reducing hidden bugs and runtime errors.
Migrating an existing Nuxt 3 project is straightforward and requires simply moving specific conventional application directories into the new app/ folder.
Any hardcoded paths in package.json or CI/CD configs will need updating to align with the new location of directories post-migration.
Nuxt 4 introduces a revamped TypeScript setup, creating separate virtual TypeScript projects for each context, which eliminates longstanding issues with 'type-bleed'.
Nuxt 4's strict separation of type inference ensures that server-only utilities and client-side code are adequately flagged, avoiding hidden bugs.
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