I think what he ask is, when the Diego-release will merge to cf-release. And also no need to install cf cli diego plugin, no need to enabe-diego to your app, then start. For the https://github.com/cloudfoundry-incubator/diego-design-notes/blob/master/migrating-to-diego.md#a-detailed-transition-timeline . it is said to be mid-september, is it right?