apt-cache show bridge-utils | grep -E "Pack|Vers|Confl" Package: bridge-utils Version: 1.5-15ubuntu1 Conflicts: ifupdown (<< 0.8.17)
So that conflict applies to ifupdown 0.8.16ubuntu2 in Bionic
apt-cache show bridge-utils | grep -E "Pack|Vers|Confl"
Package: bridge-utils
Version: 1.5-15ubuntu1
Conflicts: ifupdown (<< 0.8.17)
So that conflict applies to ifupdown 0.8.16ubuntu2 in Bionic