Virtual environment YAML workflow label Notes
Windows Server 2019 windows-latest or windows-2019
Windows Server 2016 windows-2016
Ubuntu 20.04 ubuntu-latest or ubuntu-20.04
Ubuntu 18.04 ubuntu-18.04
Ubuntu 16.04 ubuntu-16.04 Deprecated and limited to existing customers only. If any of your workflows use Ubuntu 16.04, migrate to Ubuntu 20.04 or 18.04. For more information, see the blog post.
macOS Big Sur 11 macos-11 {% data reusables.github-actions.macos-runner-preview %}
macOS Catalina 10.15 macos-latest or macos-10.15 {% data reusables.github-actions.macos-runner-preview %}