Comment 7 for bug 1703035

Hi Mark,

Since the mechanism to report the version on a running controller was only introduced in MAAS 2.3.0a3, controllers running older versions will be unable to report their running version.

For example, a rack controller running on 2.2 doesn't know how to report its version back to the region, and hence, the UI will show 'unknown' as the version of such controller.

I hope this helps clarify the behavior. If you feel we should improve the wording, we can also find alternate ways of highlighting the lack of version.

Thanks!