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
Repair against the current Node.js contract, then keep the change narrow and source-backed.
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.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.
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/ReleaseSource Trail
GitHub source file/reference: