Windows Server Bi-Annual Channel Overview

Monday 21st August 2017

In order to align with similar release and servicing models for Windows 10 and Office 365 ProPlus Microsoft has announced a new release model for Windows Server. There will be two primary release channels available to Windows Server customers, the Long-term Servicing Channel, and the new Semi-annual Channel.

Long-term Servicing Channel

This is the release model you’re already familiar with (currently called the “Long-term Servicing Branch”) where a new major version of Windows Server is released every 2-3 years. Users are entitled to 5 years of mainstream support, 5 years of extended support, and optionally 6 more years with Premium Assurance. This channel is appropriate for systems that require a longer servicing option and functional stability. Deployments of Windows Server 2016 and earlier versions of Windows Server will not be affected by the new Semi-annual Channel releases. The Long-term Servicing Channel will continue to receive security and non-security updates, but it will not receive the new features and functionality.

Semi-annual Channel

The Semi-annual Channel releases will deliver new functionality for customers who are moving at a “cloud cadence," such as those on rapid development cycles or hosters keeping up with the latest Hyper-V investments. Windows Server products in the Semi-annual Channel will have new releases available twice a year, in spring and fall. Each release in this channel will be supported for 18 months from the initial release.

Most of the features introduced in the Semi-annual Channel will be rolled up into the next Long-term Servicing Channel release of Windows Server. The editions, functionality, and supporting content might vary from release to release depending on customer feedback.

The Semi-annual Channel will be available to volume-licensed customers with Software Assurance, as well as via the Azure Marketplace or other cloud/hosting service providers and loyalty programs such as MSDN.

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