Windows 2019 server - are the v.1903 & v.1909 updates worth installing on an existing 2019 Server installation?

btm02sf
btm02sf used Ask the Experts™
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I have a Dell PowerEdge Server installed new at the end of August, with Windows 2019 Standard Server v.1809. This is the version that Dell shipped it with in mid August. It is the first Windows 2019 server that I installed at any of my clients. The client using this new 2019 server is a small dental office with about 14 desktops, and a staff of 8 users.

I know that Microsoft has released new Semi-Annual Channel releases for Windows 2019 Server - version 1903 (released in May) and Windows 2019 Server - version 1909 (just released recently).

I have not yet performed an update of a Windows 2019 with one of these two releases. So, I am not sure what to expect, or even, if I should install at all any subsequent updates for the Windows 2019 operating system. I am a little bit worried that by installing these updates, not necessarily right away after Microsoft is releasing them, I could cause issues for my server, lose data, etc.

Does anyone install these updates on top of the original full server installation, and why? Are there any guidelines on whether I should install these major releases, or just forget about them? Any best practices?

Any feedback would be very much appreciated. Thank you for your assistance.
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Network Engineer
Commented:
You should NOT be using the semi-annual releases for a small dental practice. Microsoft describes the semi-annual channel this way.

The Semi-Annual Channel is perfect for customers who are innovating quickly to take advantage of new operating system capabilities at a faster pace, both in applications – particularly those built on containers and microservices, as well as in the software-defined hybrid datacenter.

https://docs.microsoft.com/en-us/windows-server/get-started-19/servicing-channels-19

In addition, the semi-annual releases can only be installed as Server Core for container host and image and Nano Server container image. It also requires Software Assurance.
Distinguished Expert 2017

Commented:
1) you should have server backups.
2) this is the new setup that ms does, in addition to periodic updates, it issues these mass updates.
3) much depends on how your server is used and whether it has a custom application which could require a setup of a virtual environment mimicking your production where you can test updates before you roll them out.

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Commented:
Thank you Kevin for the obvious solution - "Don't fix it if it ain't broken". Will not worry about these feature updates.

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