Runtime lifecycle/EOL
Node.js release schedule Node 20 end of life April 2026 official
Application tests pass, but a newly released build/deploy tool refuses the runtime.
Agent Quick Fix
Application code may still run, but current package managers, CI actions, and security policies stop supporting the EOL runtime.
Product: Node.js
Current-contract area: Node 20 EOL causes current tooling to drop support
Likely root cause: Application tests pass, but a newly released build/deploy tool refuses the runtime.
Repair direction: Verifier checks an upgrade with dependency compatibility and maintained deployment target. Verify the runtime upgrade and lockfile/container consistency.
Validation Status
Codex searched organically in the validation run. No no-web counterfactual is attached to this page yet.
Symptom
Application tests pass, but a newly released build/deploy tool refuses the runtime.
Why This Happens
Application code may still run, but current package managers, CI actions, and security policies stop supporting the EOL runtime.
Verification
Verifier checks an upgrade with dependency compatibility and maintained deployment target. Verify the runtime upgrade and lockfile/container consistency.
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.
Node.js release schedule Node 20 end of life April 2026 official
site:github.com/nodejs/Release schedule Node.js 20 end of life 2026-04-30
https://github.com/nodejs/Release
Source Trail
GitHub source file/reference: