Debian

After patching I noticed that there were several packages "Kept back", in my case gnumeric. This could be because the base system needs to be upgraded:

# apt-get dist-upgrade

or it's just missing dependancies

# apt-get install gnumeric

and to ignore the hold:

# apt-get --ignore-hold install gnumeric

I was also told I could specify a version different than that in my version

$ /cat /etc/debian_version

to determine my version. Say I was using stable and wanted to try unstable:

# apt-get install gnumeric/unstable gnumeric-common/unstable