Hello, most lintian warnings are just fine across all versions of Debian. But some do introduce incompatibilities for those performing backports. Please be so kind to help with an extra field that indicates the version of Debian or Ubuntu with which it is (or is not) compatible. I came across this issue when getting this error here: http://lintian.debian.org/tags/substvar-source-version-is-deprecated.html Many thanks Steffen