Comment # 4 on bug 1028399 from Fabian Vogt

(In reply to Nathaniel Graham from comment #0)
> I'm using OpenSUSE Tumbleweed. Some updated packages are available, and I
> want to read their release notes so I can find out what's changing.
> 
> On Fedora, I would do the following: `dnf updateinfo --refresh info <package
> name, or empty to see all>`

FTR, dnf doesn't support this for rolling release repos either, repo metadata
is not designed to include complete changelogs for all packages.

On Leap, the patch packages include the changelog and I imagine dnf updateinfo
would use that.