GitDocs
Framework semantic default

Next.js 15 GET route handlers no longer cached by default route segment config dynamic force-static

Load test shows upstream calls on every request despite old behavior.

search-observedNext.jsWeb frameworkFramework semantic defaultnext15

Agent Quick Fix

Local code often type-checks under both old and new framework semantics; the failure depends on the installed framework version and current runtime defaults.

Product: Next.js
Current-contract area: Next.js 15 GET route handler no longer cached by default
Likely root cause: Load test shows upstream calls on every request despite old behavior.
Repair direction: Verifier checks behavior across multiple requests/build modes, not merely compilation. Check request count, response freshness, and render behavior over multiple calls.

Validation Status

Codex searched organically in the validation run. No no-web counterfactual is attached to this page yet.

Symptom

Load test shows upstream calls on every request despite old behavior.

Why This Happens

Local code often type-checks under both old and new framework semantics; the failure depends on the installed framework version and current runtime defaults.

Verification

Verifier checks behavior across multiple requests/build modes, not merely compilation. Check request count, response freshness, and render behavior over multiple calls.

Common Wrong Fixes

  • Changing local code without checking the current external contract.
  • Retrying the same install, build, or API call with no version/source change.
  • Applying a broad unsafe bypass when a narrow compatibility fix is available.

Codex Search Keywords

These are the search terms observed in a neutral Codex validation run for this failure shape.

Next.js 15 GET route handlers no longer cached by default route segment config dynamic force-static
site:nextjs.org/docs Next.js 15 route handlers caching GET no longer cached by default
Next.js 15 upgrade guide caching GET route handlers uncached by default
https://nextjs.org/docs/app/guides/upgrading/version-15
'GET Route Handlers are no longer cached by default' in https://nextjs.org/docs/app/guides/upgrading/version-15

Source Trail