The UC .cab file 5.4.4 is not correct. I installed it for the VVX400, but I only got a new version for VVX400 Rev-A All other revisions are not updated. I checked the cab file, and the included .xml file only mentiones Rev-A.
we disabled the functionality to add a Hardware Revision for our different builds as this used up to much space on the LYNC / Skype for Business Server so the Cab File is OK.
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Polycom Global Services
so this new update is working for all revisions? Cause in the Lync control panel it still shows Rev-A. I like to have one firmware for all revisions, now I can clean up the update list :-)