When you NMU a package, that fact should be mentioned on the first line in the changelog entry. Use the words "NMU" or "Non-maintainer upload" (case insensitive).
Maybe you didn't intend this upload to be a NMU, in that case, please double-check that the most recent entry in the changelog is byte-for-byte identical to the maintainer or one of the uploaders. If this is a local package (not intended for Debian), you can suppress this warning by putting "local" in the version number or "local package" on the first line of the changelog entry.
For more information please consult:
- Debian Developer's Reference section 5.11.3
The tag is present in Lintian version
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 ffc17eb. For merge requests, please use the latest version in the Lintian check nmu.