vdp 6.1
in previous VDP versions it was possible to do direct upgrades to the latest version. unfortunately, there is no direct upgrade path from 6.x to 6.1.x. a new 6.1 appliance must be deployed and the old VDP appliance’s settings and data can be migrated to it.
source: https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2127665
if you try to simply mount a 6.1.x upgrade iso to an older appliance it won’t be recognized as an update package. also a side note regarding vdp upgrade packages…it takes a few minutes for the package to appear after an iso is attached to the VM. i have seldom seen the package appear immediately after mount.