Suricata

Perhaps useful and worth a try to look at: https://michaelgoerz.net/notes/showing-a-warning-for-the-latest-documentation-on-readthedocs/index.html

Through experimentation, and confirmation from RTD support, tags must be parseable semantic versions for this to work. Our tag scheme, suricata-x.y.z is not due to the prefixing before the version.

Others have run into this issue as well and there is an open ticket for a feature that may help those with tags that aren't exactly semver: https://github.com/readthedocs/readthedocs.org/issues/5318