What is SAC?
The Windows Server Semi-Annual Channel brings new updates with new versions twice a year. These SAC versions are primarily intended for customers with fast innovations (according to Microsoft).
The first SAC release was System Center Version 1801. The names of the versions always depend on the release year and its month, so the first release was Version 1801, since it was released in January 2018.
From the date of public availability, the semi-annual channel versions are supported by Microsoft for 18 months. This channel is offered only to customers with Software Assuarance, it corresponds to the release and maintenance model for Windows servers, which was announced in 2017.
What is LTSC?
LTSC is the abbreviation for the Long-Term Servicing Channel and, like SAC, was introduced with Windows Server 2016. Basically, LTSC has always existed, it just wasn't called that until SAC was introduced. In LTSC there are both large, paid upgrades (major releases) and small updates such as patches, etc. They close security gaps, improve stability and fix minor bugs. LTSC offers five years of mainstream support and five additional years of extended support. This channel is best suited for systems that require a longer maintenance option and functional stability. The LTSC releases contain the complete Windows Server functionality, i. e. Core, Nano Server and Desktop, and are usually released every two to three years.
Our spo-comm mini PCs are all equipped with Windows LTSC, Windows 10 or 11 makes no difference here.
