Package: apt Version: 2.1.15 Severity: minor If I understand correctly the apt cmd should report kept back package, as well.
$ sudo apt upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. $ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following packages have been kept back: mime-support 0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded. $ sudo apt list --upgradable Listing... Done mime-support/unstable 3.66 all [upgradable from: 3.64] N: There is 1 additional version. Please use the '-a' switch to see it $ sudo apt list --upgradable -a Listing... Done mime-support/unstable 3.66 all [upgradable from: 3.64] mime-support/now 3.64 all [installed,upgradable to: 3.66] -- Francesco P. Lovergine