I frequently hear the following questions:
"Which OpenStack version is installed?" and "I am not able to determine the name of Openstack release running on my machine?"
So here is a quick way to find out:
- SSH to your openstack hosts.
- Run
openstack --version

OpenStack Client Release Names:
- Ocata 3.8.1
- Newton 3.2.0
- Mitaka 2.3.0
- Liberty 1.7.3
- Kilo 1.0.6
- Juno 0.4.1
- Icehouse 0.3.1
same way for other specific services too, for example:
nova-manage --version
cinder-manage --version
glance-manage --version
Click here to find further details about Openstack versions