Wsubstvar-source-version-is-deprecated
The tag is present in Lintian version 2.104.328. That is the most recent version we know about.
The package uses the now deprecated ${Source-Version} substvar, which has misleading semantics. Please switch to ${binary:Version} or ${source:Version} as appropriate (introduced in dpkg 1.13.19, released with etch). Support for ${Source-Version} may be removed from dpkg-dev in the future.
Visibility: warning
Check: debian/version-substvars