I have a question about the "call to action" feature in 4.18 - does this require a new version of Fleet Desktop? (I am at 1.0.0). The way I read the feature was that it would include some kind of notification feature, but maybe I'm reading it wrong? How is this one configured / set up / etc? I couldn't find any docs yet on it.

There aren't desktop notifications yet. The call to action is within the menu drop-down (red icon and issue count).

Got it! Thanks!