non-security updates require a restart to finish installing, and the “When there are other updates” interval has passed since Software Updater was last open (either automatically or manually) (part of bug 1033226).
) updates has been implemented in Ubuntu Software Center, those particular updates should no longer cause the alert listing updates to appear.
By default, it should not display any interface while checking.
The Updates Available window should be manually resizable only when it is in this expanded state.
It should remember its previous expanded size, but by default should be the same width as when not expanded, and tall enough to show six items in the list, with a minimum height of three items.
When checking interactively, Software Updater should display only a progress window.
As with any other progress window, the window should have a minimize button but no maximize or close button, and should be 33 em wide.