In v4, it would be helpful to know how many machines in each environment need Calamari and/or Tentacle upgrades (possibly next to the health indicators on the right?)

As of right now, customers can't see (from this overview) which servers need updates.

At a minimum, we need an API filter that allows us to search for servers that need Tentacle or Calamari updates.

Source: https://secure.helpscout.net/conversation/479027453?folderId=557077