The Abstract field of doc-base contains a "manage online manuals" phrase, which was copied verbatim from an example control file found in section 2.3.1 of the Debian doc-base Manual.
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 ce6249d. For merge requests, please use the latest version in the Lintian check menus.