Version: buster
My system has a bridge interface configured in /etc/network/interfaces.
I upgraded from stretch to buster. After the successful upgrade in
the list of packages to be auto-removed is bridge-utils.
"The following packages were automatically installed and are no longer required:
bridge-utils..."
After running `sudo apt-get dist-upgrade` and a subsequent restart,
the host was missing its bridge interfaces.
Manual installation of bridge-utils fixed the network interfaces.
I suppose bridge-utils did not have any dependencies which was why it
was auto-removed but this is an important package since loss of
connectivity can occur if upgrading remotely.
Thank you,