RCP: 0.7.8, no prompt when no update is found

The current update command does not prompt the user when there is no update found

Solution

See how the about dialog do it in the installed plugins tab.

See org.eclipse.equinox.internal.p2.ui.actions.UpdateAction

(from redmine: issue id 2307, created on 2017/12/20 by Matthieu Decorde)