It is generally not a good idea for postinst scripts to use debconf
db_input. Typically, they should restrict themselves
db_get to request previously acquired information, and have the
config script do the actual prompting.
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 2ff4e94. For merge requests, please use the latest version in the Lintian check debian/debconf.