Among the 2 debian patches available in version 2.21-2 of the package, we noticed the following issues:
commit 59773a2e692ad9ff1b3850d37faf0b8e4048426f Author: Debian Janitor <janitor@jelmer.uk> Date: Wed Sep 14 23:56:37 2022 +0000 Update standards version to 4.6.1, no changes needed. Changes-By: lintian-brush Fixes: lintian: out-of-date-standards-version See-also: https://lintian.debian.org/tags/out-of-date-standards-version.html