DOSSIER / NPM

react

18.3.1 19.2.8 · saved Sep 19, 2026

review lane

60/100

Upgrade needs a deliberate migration pass

react 19.2.8 crosses a meaningful change boundary. Compare APIs, run focused tests, and make the rollback path explicit.

low confidence

EVIDENCE / EXPLAINABLE

same engine / REST / MCP

Version distanceA major release can change public contracts and runtime assumptions.major boundary
100%

Release cooldownRecent releases receive a short observation window before a production recommendation.3 days old
75%

Maintenance signalMaintainer and repository signals help identify provenance risk.5 maintainers
10%

Package surfaceA larger package has more install-time and transitive review surface.0.4 MB unpacked
18%

Metadata qualityComplete license and description metadata makes a release easier to review.MIT license
8%

RUNBOOK

Read the upstream release note and confirm the intended version exists in npm.
Pin the candidate in a branch and run the focused test suite before the full build.
Search the codebase for removed or renamed APIs before merging.
Deploy behind a canary or feature flag with a documented rollback command.