Deprecation archive
Next.js deprecations & breaking changes
2 tracked changes, dated and sourced to Next.js's own changelog. Want to know which of these touch your stack? Paste your package.json →
- Source ↗BreakingAction required
Next 15: cookies(), headers(), params & searchParams are now async
Next.js 15 made request APIs (cookies, headers, draftMode) and the params/searchParams props asynchronous. Synchronous access still works with a warning but is removed on the next major.
published 2024-10-21 · affects ≥ 15.0.0
- Source ↗Deprecation
App Router: getInitialProps / getServerSideProps not supported in app/
In the App Router (default since 14), the legacy data-fetching methods do not run; server components + fetch replace them. Pages-router code moved into app/ silently loses data fetching.
published 2023-05-04 · affects ≥ 13.4.0
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