Hello,

As we've discussed with nova tag recently [1], I'd suggest the same for horizon.

When we search on pypi the version it shows is 2012.2 and when we click release history we can see that the most recent version is 15.1.0 [2]

[1] http://lists.openstack.org/pipermail/openstack-discuss/2019-May/006780.html
[2] https://pypi.org/project/horizon/#history

Regards,

Guilherme Steinmuller