I attempted to apt-get update and then apt-get upgrade from the shell on my OMV 3.0.83 and got the following about held packages related to samba:
The following packages have been kept back:
python-samba samba samba-common samba-common-bin samba-dsdb-modules samba-libs samba-vfs-modules
0 upgraded, 0 newly installed, 0 to remove and 7 not upgraded.