kazulog@sv1:~$ apt policy libpam0g | head -8
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

libpam0g:
  Installed: 1.7.0-5ubuntu3.1
  Candidate: 1.7.0-5ubuntu3.2
  Version table:
     1.7.0-5ubuntu3.2 500
        500 http://archive.ubuntu.com/ubuntu resolute-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu resolute-security/main amd64 Packages
 *** 1.7.0-5ubuntu3.1 100
kazulog@sv1:~$ apt policy vim | head -6
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

vim:
  Installed: 2:9.1.2141-1ubuntu4.8
  Candidate: 2:9.1.2141-1ubuntu4.9
  Version table:
     2:9.1.2141-1ubuntu4.9 500
        500 http://archive.ubuntu.com/ubuntu resolute-updates/main amd64 Packages
kazulog@sv1:~$ grep -nE 'distro_codename' /etc/apt/apt.conf.d/50unattended-upgrades | head -12
7:	"${distro_id}:${distro_codename}";
8:	"${distro_id}:${distro_codename}-security";
13:	"${distro_id}ESMApps:${distro_codename}-apps-security";
14:	"${distro_id}ESM:${distro_codename}-infra-security";
15://	"${distro_id}:${distro_codename}-updates";
16://	"${distro_id}:${distro_codename}-proposed";
17://	"${distro_id}:${distro_codename}-backports";