Build Next.js 16 apps with async route params, Server Components, Cache Components, and Partial Prerendering.

• Covers 25+ documented errors and solutions, including async params migration, parallel routes with required default.js, and "use cache" directive patterns
• Supports Cache Components with revalidateTag(), updateTag(), and refresh() APIs for opt-in caching and stale-while-revalidate strategies
• Includes proxy.ts migration (replaces deprecated middleware.ts), Turbopack production limitations (Prisma incompatibility, source map security, monorepo hash mismatches), and React 19.2 features (View Transitions, useEffectEvent)
• Provides templates for async params, parallel routes, cache components, server actions, and configuration; references breaking changes from Node.js 20.9+ requirement and image optimization defaults