Nailgun and Astute should support both versions of network checker.
Currently we cannot upgrade network checkers and mcollective agents, here are several reasons
1. it won't help, because after deployment user can run network checker on old cluster with new astute/nailgun
2. openstack patching feature was created to update minor changes for openstack, so, we cannot deliver code which breaks backward compatibility
Nailgun and Astute should support both versions of network checker.
Currently we cannot upgrade network checkers and mcollective agents, here are several reasons
1. it won't help, because after deployment user can run network checker on old cluster with new astute/nailgun
2. openstack patching feature was created to update minor changes for openstack, so, we cannot deliver code which breaks backward compatibility