Revisiting PoC for 7 Major Kubernetes Gateway Technologies (feat. Ingress NGINX Retirement)

After Ingress NGINX retirement and security issues like CVE-2025-1974, seven Kubernetes Gateway API implementations were re-evaluated.

Kong and Traefik, which had failed last year, passed the new measurement this time.

The old A/F scoring mixed unsupported and optional features and lacked enough grading granularity.

This round was redesigned to match the Gateway API v1.4 conformance model, separating Core, Extended, and unique features.

The new approach gives a more trustworthy basis for choosing a Gateway API migration target.