Prometheus Metrics Just Got a Cardinality Fix: What Native Histograms Change, and Why the Ecosystem Is Reacting

TL;DR: Prometheus’s biggest structural weakness has always been cardinality. A stable feature years in the making is finally addressing it, and the rest of the observability market is already responding. Native histograms allow for more efficient metrics storage, reducing cardinality strain and enabling faster, more cost-effective AI-powered observability.