Windows Server release information
Windows Server is moving to the Long-Term Servicing Channel (LTSC) as our primary release channel. Current Semi-Annual Channel (SAC) releases will continue through their mainstream support end dates, which are May 10, 2022 for Windows Server, version 20H2 and December 14, 2021 for Windows Server, version 2004.
The focus on container and microservice innovation previously released in the Semi-Annual Channel will now continue with Azure Kubernetes Service (AKS), AKS on Azure Stack HCI, and other platform improvements made in collaboration with the Kubernetes community. And with the Long-Term Servicing Channel, a major new version of Windows Server will be released every 2-3 years, so you can expect both container host and container images to align with that cadence.
Windows Server current versions by servicing option
|Windows Server release||Version||Build number||Availability||Mainstream support end date||Extended support end date|
|Windows Server 2022 (Long-Term Servicing Channel) (Datacenter, Standard)||21H2||20348.169.210806-2348||08/18/2021||10/13/2026||10/14/2031|
|Windows Server, version 20H2 (Semi-Annual Channel) (Datacenter Core, Standard Core)||20H2||19042.508.200927-1902||10/20/2020||05/10/2022||Not applicable|
|Windows Server, version 2004 (Semi-Annual Channel) (Datacenter Core, Standard Core)||2004||19041.264.200508-2205||05/27/2020||12/14/2021||Not applicable|
|Windows Server, version 1909 (Semi-Annual Channel) (Datacenter Core, Standard Core)||1909||18363.418.191007-0143||11/12/2019||05/11/2021||Not applicable|
|Windows Server 2019 (Long-Term Servicing Channel) (Datacenter, Essentials, Standard)||1809||17763.107.1010129-1455||11/13/2018||01/09/2024||01/09/2029|
|Windows Server 2016 (Long-Term Servicing Channel) (Datacenter, Essentials, Standard)||1607||14393.0||10/15/2016||01/11/2022||01/11/2027|