Microsoft announced that Microsoft Visual Studio Team Services becomes Microsoft Azure DevOps. To read the full announcement, please visit the site: https://docs.microsoft.com/en-us/azure/devops/release-notes/2018/sep-10-azure-devops-launch. In this context you might also be interested in the Azure DevOps billing FAQ: https://docs.microsoft.com/en-us/azure/devops/organizations/billing/billing-faq?view=vsts&tabs=new-nav.