When upgrading qbrz I got a Python syntax warning:

   Preparing to unpack .../qbrz_0.23.2+bzr1663-1_all.deb ...
   Unpacking qbrz (0.23.2+bzr1663-1) over (0.23.2+bzr1659-1) ...
   Setting up qbrz (0.23.2+bzr1663-1) ...
   /usr/lib/python3/dist-packages/breezy/plugins/qbrz/lib/diff.py:345: SyntaxWarning: invalid escape sequence '\s'
     re_whitespaces = re.compile(b"\s+")

Probably this is caused by the Python 3.12 transition.

We believe that the bug you reported is fixed in the latest version of
qbrz, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1061711@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Jelmer Vernooij <jelmer@debian.org> (supplier of updated qbrz package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Sat, 17 Feb 2024 15:56:08 +0000
Source: qbrz
Architecture: source
Version: 0.23.2+bzr1665-1
Distribution: unstable
Urgency: low
Maintainer: Jelmer Vernooij <jelmer@debian.org>
Changed-By: Jelmer Vernooij <jelmer@debian.org>
Closes: 1061711
Changes:
 qbrz (0.23.2+bzr1665-1) unstable; urgency=low
 .
   * New upstream snapshot.
    + Fixes SyntaxWarning about invalid escape sequence. Closes: #1061711
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