>If I’m reading this correctly, he’s essentially advocating for a/b(/c/d ...) testing and feature flags? Feature flags and A/B testing are used more for testin

>If I’m reading this correctly, he’s essentially advocating for a/b(/c/d ...) testing and feature flags? Feature flags and A/B testing are used more for testing new features or functionality. This is directed at evaluating completely different implementations while trying to keep the same functionality. Particularly regarding performance, he touches on the fact that if not all features are implemented in the new version, you can’t trust the metrics.