Fedora's "Fedup" To Be Replaced In Fedora 23
Fedup right now is the command for handling in-place Fedora upgrades from release-to-release and it's been around since Fedora 17. However, with the Fedora 23 release due out in late 2015, that utility will likely be replaced with a new version to handle upgrading to new releases.
While Fedup has improved a lot since its start, Fedora developers have determined "the current design is unsupportable" so they're planning a new approach. The new Fedup will likely download all packages for the new Fedora system followed by using systemd's "Offline Updates" feature to install all of the new packages. This would be done likely in conjunction with PackageKit to make a nice user experience.
Will Woods of Red Hat has already prototyped a new Fedora upgrader system using this new design as a DNF plug-in. More details on the Fedup changes planned for Fedora 23 can be found via this Fedora development list post.
While Fedup has improved a lot since its start, Fedora developers have determined "the current design is unsupportable" so they're planning a new approach. The new Fedup will likely download all packages for the new Fedora system followed by using systemd's "Offline Updates" feature to install all of the new packages. This would be done likely in conjunction with PackageKit to make a nice user experience.
Will Woods of Red Hat has already prototyped a new Fedora upgrader system using this new design as a DNF plug-in. More details on the Fedup changes planned for Fedora 23 can be found via this Fedora development list post.
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