Migration from Yarn Classic to Yarn v4 or NPM is required by end of Q1 2026

• Close to End of Life: Yarn Classic entered maintenance mode in January 2020. It currently receives only critical and security fixes, with no new feature development.

• Konflux Hermetic Support: Supporting Yarn Classic in Konflux Hermetic generates significant maintenance overhead and technical friction.

• Supply Chain Security: phasing out Yarn Classic will allow Red Hat to accelerate improvements to our overall company supply chain security.

 the full list of identified Konflux tenants and applications where Yarn v1 usage was detected can be found here:  Yarn Classic (v1) usage in Konflux