sudo apt policy
Package files:
100 /var/lib/dpkg/status
release a=now
500 http://deb.debian.org/debian buster-updates/non-free i386 Packages
release o=Debian,a=stable-updates,n=buster-updates,l=Debian,c=non-free,b=i386
origin deb.debian.org
500 http://deb.debian.org/debian buster-updates/non-free amd64 Packages
release o=Debian,a=stable-updates,n=buster-updates,l=Debian,c=non-free,b=amd64
origin deb.debian.org
500 http://deb.debian.org/debian buster-updates/main i386 Packages
release o=Debian,a=stable-updates,n=buster-updates,l=Debian,c=main,b=i386
origin deb.debian.org
500 http://deb.debian.org/debian buster-updates/main amd64 Packages
release o=Debian,a=stable-updates,n=buster-updates,l=Debian,c=main,b=amd64
origin deb.debian.org
500 http://security.debian.org/debian-security buster/updates/non-free i386 Packages
release v=10,o=Debian,a=stable,n=buster,l=Debian-Security,c=non-free,b=i386
origin security.debian.org
500 http://security.debian.org/debian-security buster/updates/non-free amd64 Packages
release v=10,o=Debian,a=stable,n=buster,l=Debian-Security,c=non-free,b=amd64
origin security.debian.org
500 http://security.debian.org/debian-security buster/updates/main i386 Packages
release v=10,o=Debian,a=stable,n=buster,l=Debian-Security,c=main,b=i386
origin security.debian.org
500 http://security.debian.org/debian-security buster/updates/main amd64 Packages
release v=10,o=Debian,a=stable,n=buster,l=Debian-Security,c=main,b=amd64
origin security.debian.org
500 http://deb.debian.org/debian buster/non-free i386 Packages
release v=10.4,o=Debian,a=stable,n=buster,l=Debian,c=non-free,b=i386
origin deb.debian.org
500 http://deb.debian.org/debian buster/non-free amd64 Packages
release v=10.4,o=Debian,a=stable,n=buster,l=Debian,c=non-free,b=amd64
origin deb.debian.org
500 http://deb.debian.org/debian buster/contrib i386 Packages
release v=10.4,o=Debian,a=stable,n=buster,l=Debian,c=contrib,b=i386
origin deb.debian.org
500 http://deb.debian.org/debian buster/contrib amd64 Packages
release v=10.4,o=Debian,a=stable,n=buster,l=Debian,c=contrib,b=amd64
origin deb.debian.org
500 http://deb.debian.org/debian buster/main i386 Packages
release v=10.4,o=Debian,a=stable,n=buster,l=Debian,c=main,b=i386
origin deb.debian.org
500 http://deb.debian.org/debian buster/main amd64 Packages
release v=10.4,o=Debian,a=stable,n=buster,l=Debian,c=main,b=amd64
origin deb.debian.org
Pinned packages:
apt-config:
sudo apt-config dump | grep Release
Binary::apt::APT::Get::Update::InteractiveReleaseInfoChanges "1";