I am not sure this is intended behavior, but there is a different list of updates if I run: dnf update compared to sudo dnf update for the records, comparing the list of updates with yum, it seems the first form got the list right, while the sudo form contains a just a subset of the available updates.
Hello, this is the expected behavior---each version works with different metadata. If one waits for the metadata to come in sync (after some time or by forcing them), the output will be the same.
*** Bug 1090117 has been marked as a duplicate of this bug. ***