If you need to know which version of Interana is running on your cluster (for a support request, or just because you're curious):
http://your_cluster_address/version.txt to see your version information.
Look for the version number in the "Tag is" line. For example, this cluster is running version 2.22.1:
2.22-a4a3878 Tag is 2.22.1-GA Full SHA and landing time=a4a387845b43f5f48dd1215b6673e88247b22aed Thu, 2 Mar 2017 01:06:21 -0800
See the release notes for information about the latest version of Interana.