Fedora 30 will be released soon and a number of users will upgrade from their Fedora 28/29 machines. To ensure that upgrades go smoothly for them, we need as many community members as possible to test the upgrade beforehand to identify, report, and fix any issues that may crop up.
On a Fedora 28/29 system, which can be a virtual machine also, please run:
sudo dnf --releasever=30 --setopt=module_platform_id=platform:f30 --enablerepo=updates-testing distro-sync
If things all go well, and you do not experience any dependency errors, you will see a prompt like this:
... Total download size: XXX M Is this ok [y/N]:
N—you do not need to run the actual upgrade.
Please report your results to the devel mailing list here and file bugs against the appropriate packages if you see any errors: