The New Stack: "Kubernetes 1.15 aims to extensibility with custom resource definition features"

With Kubernetes 1.14, the team moved 10 enhancements to stable, but this time around that number has dropped to two, with many more alpha and beta features being introduced. Kubernetes 1.15, says team lead Claire Laurence, is focused far more on introducing new features than stable ones, and spending time building those features up before declaring them stable.