Update Manager - What Repositories?

[Tookelso]

Hello,

I have some questions about Update Manager in Edgy Eft.

Does it search through all repositories to show the available updates?

How does it determine what updates are shown under the "Important security updates" section?.

I haven't found this feature, but is there some way I can click on an update, and see where it's being downloaded from?

Thanks,
--Nate