/etc/upgrade-system.conf is in upgrade-system 1.6.1.0.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 | ### upgrade-system.conf(5) config for upgrade-system(8) ###
# See apt-get(8)
CLEANOPTS="clean"
# See apt-get(8)
UPGRADEOPTS="--auto-remove --fix-broken --purge --show-upgraded dist-upgrade"
# See deborphan(1)
ORPHANOPTS="--guess-all --libdevel --priority=1"
#EOF
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