The tag is present in Lintian version 2.113.26. That is the most recent version we know about.
We use semantic versions.
The patch number is a commit step indicator relative to the
release tag in our Git
You can find the detection logic for this version at commit a1e47cb. For merge requests, please use the latest version in the Lintian check fields/version.
The version number of this package contains ".dfsg", probably in a form like "1.2.dfsg1". There is a subtle sorting problem with this version method: 1.2.dfsg1 is considered a later version than 1.2.1. If upstream adds another level to its versioning, finding a good version number for the next upstream release will be awkward.
Upstream may never do this, in which case this isn't a problem, but it's normally better to use "+dfsg" instead (such as "1.2+dfsg1"). "+" sorts before ".", so 1.2 < 1.2+dfsg1 < 1.2.1 as normally desired.