The tag is present in Lintian version 2.114.68. 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 1af554a. For merge requests, please use the latest version in the Lintian check build-systems/automake.
This tag is experimental.
The use of 'configure.in' with automake is deprecated and will not be supported in future versions of automake. Please consider (helping upstream) migrating to 'configure.ac' instead.
For more information please consult: