Window Server 2019 – 1809, 1903, 1909 Servicing Channels

It can get a bit confusing. The below website summarizes the server releases.

There are two servicing models for Windows server – a long term servicing channel and a semi annual channel.

The Long Term Servicing Channel (LTSC) is like the old server releases of 2008, 2012 etc. They are major releases that are supported for a long time. While they do get security updates, they don’t get many (if any) feature updates. The idea behind these version of Windows Server is that it is stable, so it’s a good choice for your core infrastructure.

The other servicing option is is the Semi-Annual Channel (SAC). This version of Windows Server has new features, but a much shorter support period. The new features tend to be geared more towards things like Containers and Microservices – devops stuff. This version of windows is unavailable with a GUI – it is in core mode only.

Unless you need any of the features in the SAC branch (1909, 1903) then there isn’t really a need to upgrade. Nearly all of our clients are on 1809 because it is stable – only a couple have deployed 1903 or 1909 and these are for very specialised reasons.

As 1809 and 1909 are two different servicing channels, they cannot be upgraded in place.

Hope this information is helpful.

Windows Server releaseServicing optionEditionsAvailabilityBuildMainstream support end dateExtended support end date
Windows Server 2022Long-Term Servicing Channel (LTSC)Datacenter, Standard2021-08-1820348.1692026-10-132031-10-14
Windows Server, version 20H2Semi-Annual ChannelDatacenter Core, Standard Core2020-10-2019042.5082022-08-09Not applicable
Windows Server, version 1909Semi-Annual ChannelDatacenter Core, Standard Core2019-11-1218363.418End of servicingNot applicable
Windows Server 2019 (version 1809)Long-Term Servicing Channel (LTSC)Datacenter, Essentials, Standard2018-11-1317763.1072024-01-092029-01-09
Windows Server 2016 (version 1607)Long-Term Servicing Channel (LTSC)Datacenter, Essentials, Standard2016-10-1514393.0End of servicing2027-01-11

Support Dates

ListingStart DateMainstream End DateExtended End Date
Windows Server 2019Nov 13, 2018Jan 9, 2024Jan 9, 2029

Key differences

The following table summarizes the key differences between the channels:

DescriptionLong-Term Servicing Channel (Windows Server 2019)Semi-Annual Channel (Windows Server)
Recommended scenariosGeneral purpose file servers, Microsoft and non-Microsoft workloads, traditional apps, infrastructure roles, software-defined Datacenter, and hyper-converged infrastructureContainerized applications, container hosts, and application scenarios benefiting from faster innovation
New releasesEvery 2–3 yearsEvery 6 months
Support5 years of mainstream support, plus 5 years of extended support18 months
EditionsAll available Windows Server editionsStandard and Datacenter editions
Who can use it?All customers through all channelsSoftware Assurance and cloud customers only
Installation optionsServer Core and Server with Desktop ExperienceServer Core for container host and image and Nano Server container image

Leave a Reply

Your email address will not be published. Required fields are marked *