Comment 6 for bug 980816

It doesn't seem I can upgrade any further?

$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages have been kept back:
  linux-generic linux-headers-generic linux-image-generic virtualbox virtualbox-dkms virtualbox-qt
0 upgraded, 0 newly installed, 0 to remove and 6 not upgraded.

$ unity --version
unity 5.8.0