Virtual environment	YAML workflow label	Notes
Windows Server 2022[beta]	windows-2022	The windows-latest label currently uses the Windows Server 2019 runner image.
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
macOS Big Sur 11	macos-11	The macos-latest label currently uses the macOS 10.15 runner image.
macOS Catalina 10.15	macos-latest or macos-10.15

{% warning %} Note: Beta Images are provided "as-is", "with all faults" and "as available" and are excluded from the service level agreement and warranty. Beta Images may not be covered by customer support. {% endwarning %}