Precision 3620 not compatible with Dell Command Update 4.x? Is this an oversight?

Our Dell Precision 3620s stopped updating the DCU beyond Dell Command Update 3.2.x. Other model Precision(s), Inspiron(s) and Latitudes have updated to the latest version (4.2.1). Searching the documentation for 4.x compatible systems  one finds that the Dell Precision 3620 is missing as a compatible system. Why?

<ADMIN NOTE: Broken link has been removed from this post by Dell>

Based on the other Precision models listed as compatible it seems that the 3620 should be compatible. And in fact if you install 4.x manually, it appears to work as it should - except it will not update the DCU itself.

Any chance this is a missing entry in the database of compatible systems and the oversight can be corrected?

Thanks,