I am following this process to create a YAML build pipeline for a .NET Core Web API project:

https://docs.microsoft.com/en-us/azure/devops/pipelines/get-started-yaml?view=vsts

When it comes to releasing it, I note that the (recently renamed) Azure DevOps doesn't seem to support YAML for defining release pipelines. However, I can see that deployment tasks have been defined eg:

https://docs.microsoft.com/en-us/azure/devops/pipelines/tasks/deploy/azure-rm-web-app-deployment?view=vsts

Are we expecting an upgrade to the release pipelines functionality to support YAML and, if so, when?