Two different things. Dell Command | Update comes from the business-class line: OptiPlex, Latitude, XPS.
“Dell Command | Update is a stand-alone application for commercial client computers that provides updates for system software Dell releases.”
“Dell Update (for consumer and client computers only) and Alienware Update (for Alienware computers only) are software that automatically updates critical fixes and important device drivers as they become available.”
Since when was XPS part of the business-class line? From what I understood, XPS stands for Extreme System Performance and was originally Dell's version of Alienware probably a dozen or so years before they actually bought Alienware and never business-class. OptiPlex and Latitude are sold by Dell Small Business. Vostro, Latitude, Precision are considered their business/professional models. XPS/Inspiron are both part of Dell Home.
Dell XPS - Wikipedia
This is actually mentioned on Dell's respective sites:
Dell Home mentions only Inspiron and XPS -
Home Computers - Dell Laptops & Desktops for Home | Dell USA
Dell Small Business mentions only Latitude, Vostro and Precision -
Business Laptop Computers - Dell Work PCs | Dell USA.
Also, keep in mind that just because it doesn't mentioned Dell | Command does not mean all models will be supported in future versions as let's look at two things:
Trusted Device Agent v6.3 supports everything but 6.4 while it is listed in the downloads section of the XPS 15 9570 for example, only about 15% of the things it supports are actually supported, see the v6.4 administration manual starting with page 7 and you will see each function does not include all platforms.
Dell Trusted Device v6.4 does not work correctly as in it will hang on the splash screen if installed over v6.3 as basically v6.3 even if one installs and uninstalls leaves things on the system that prevents v6.4 from working correctly unless one uninstalled v6.3 and followed it with Revo Uninstaller to remove all the remaining things in both the registry and the folder.
My Dell is another example - the 2.x version which is needed for legacy computers is nowhere to be found unless you use the workaround winget to install it using the ID of the app as v3.x will not work on older models. The winget workaround was what I learned yesterday after looking up a post I had on Dell Community Forums over a year ago, the other workaround I found on my own no one has mentioned is it's in Microsoft Store in the Library section as Power Manager will not install when My Dell is installed on the system even though both installed works fine so I always have to uninstall My Dell first, install the Power Manager that was recently updated before installing My Dell again. So with SA or even Dell Update, Dell Command Update, it will not allow My Dell to coexist with Power Manager. While Power Manager is supposedly included in My Dell, the My Dell version seems to have less functions compared to Dell Command Power Manager.
I have SA, My Dell, Dell Update and everything the machine came with installed and updated but I use it like once a year as it's better to check monthly on
www.dell.com by selecting the model only and never using the system tag as the later will not be complete and I also don't use Dell drivers for certain things such as nVidia, Intel Graphics, Realtek Audio (I use their latest just so it will allow using UAD drivers with Waves/Intel Smart Sound Technology drivers and then use the latest OEM drivers from Microsoft Update Catalog regularly). Dell only updates drivers about once a month and while the version # may be the same, it's better to get it later as you will notice from the actual installer exe names, some of them do get updated with a newer revision number that starts with Axx where the xx is a different number even though the website still did not change the release date. I prefer manual installation of drivers and actually keeping a copy of the latest installers since there is no guarantee the file will be there when you need it in the future and should I give or sell the machine, I will just revert the apps back to the way it shipped except with the latest versions of the drivers and apps it came with, that's why I never remove anything that it ships with. So I guess doing it manually means I am in 100% control of everything and actually see each thing get installed instead of SA, Dell Update, Dell Command Update updating everything and then should something go wrong, it will be hard to figure out which update caused it.
SA for whatever reason will always show SupportAssist OS Recovery Tools as the only update available but I have never seen it successfully install 99% of the time in the last 5 years and that's after doing a complete uninstall and reinstall of SA which will initially install SupportAssist OS Recovery Tools but it will always fail whenever there is a update.
So atleast with Dell Update, consider getting a advance warning and no surprises should Dell Command no longer be supported after 2024, it's better than something that no longer provides a download and no longer supported without any warning whatsoever.
There is also Dell Command Update Application & Dell Command Update Windows Universal Application which are two different things as the later is a UWP app and from what I read, the later is what will have newer versions as that is the direction they are trying to go.
