Hi Vlad/Doug,
I can't speak towards the 'obsolete' status of these DLL files at version 1.0.2.14 from 2018. The direction I got from R&D was that though there may be newer versions, we have not tested them well enough to be sure that including them would not cause additional problems, and it was more important to provide a fix for the email problems that were recently reported as soon as we could. Our emailing works with this version of these DLLs in place.
I can confirm that we are not installing these DLL files in the SysUpdater, as you indicated. I cannot speak to the reasoning of this decision, but I have forwarded your concern about this to R&D. I would suspect that the majority of Adagio sites would have installed upgrades since 2018 and therefore already have these DLL files already installed, though it is not guaranteed that a site would have current versions and want this SysUpdater for emailing within the affected environment.
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Regards,
Softrak Tech Support