# apt dist-upgrade
[...]
Get:6 http://cvmrepo.s3.cern.ch/cvmrepo/apt bullseye-prod/main amd64 cvmfs-release all 4.6-1 [7,026 B]
Fetched 61.7 MB in 3s (19.0 MB/s)         
apt-listchanges: Reading changelogs...
dpkg-deb: error: archive '/var/cache/apt/archives/cvmfs-release_4.6-1_all.deb' uses unknown compression for member 'control.tar.zst', giving up
Traceback (most recent call last):
  File "/usr/share/apt-listchanges/DebianFiles.py", line 124, in readdeb
    output = subprocess.check_output(command)
  File "/usr/lib/python3.9/subprocess.py", line 424, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "/usr/lib/python3.9/subprocess.py", line 528, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['dpkg-deb', '-f', '/var/cache/apt/archives/cvmfs-release_4.6-1_all.deb', 'Package', 'Source', 'Version', 'Architecture', 'Status']' returned non-zero exit status 2.

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/bin/apt-listchanges", line 323, in <module>
    main(config)
  File "/usr/bin/apt-listchanges", line 104, in main
    pkg = DebianFiles.Package(deb)
  File "/usr/share/apt-listchanges/DebianFiles.py", line 358, in __init__
    parser.readdeb(self.path)
  File "/usr/share/apt-listchanges/DebianFiles.py", line 127, in readdeb
    raise RuntimeError(_("Error processing '%(what)s': %(errmsg)s") %
RuntimeError: Error processing '/var/cache/apt/archives/cvmfs-release_4.6-1_all.deb': Command '['dpkg-deb', '-f', '/var/cache/apt/archives/cvmfs-release_4.6-1_all.deb', 'Package', 'Source', 'Version', 'Architecture', 'Status']' returned non-zero exit status 2.
[...]