A few questions about first repo

1)
Each time I add a new add-on or a new version…
Do users need to select “Update” on the repo?
Or does KODI occasionally update repo data by it self?
Does an update also pull in entirely new add-ons I have added to the repo?

2)
I notice add-on descriptions don’t show when browsing add-ons in repos.
Is this a bug? It seems just the “<news>” item is shown while in repo browser mode.
Should I use “news” to describe the add-on?
Surely it should just show news if the ad-don is already installed, otherwise show description so users know what the add-on does.