Packages for Kubuntu Utopic Next and Next backports PPAs for Utopic (14.10) are now deprecated.
To test upgrade to Vivid, please use the PPA-purge package to remove those PPAs and packages, and then install `kubuntu-desktop` meta-package, and finally:
sudo apt update && sudo apt full-upgrade
Live Image of Kubuntu Vivid with Packages from Git The Weekly Live Image, updated every Friday with latest source from Git to run a full system from a USB disk. Based on Kubuntu 15.04, Vivid.
KDE Frameworks 5 and Plasma 5 is available in the Vivid development version of Kubuntu, now in beta.
openSUSE offers snapshots from git master updated frequently as well. Add the KDE:Unstable:Frameworks repository (http://en.opensuse.org/SDB:KDE_repositories#Plasma_Next) and the Qt53 repository (available at the same link) and install the plasma-next-session package to have a session available at the next login.
Gentoo provides beta as well as live ebuilds inside kde overlay, with dependencies in qt overlay. The following assumes you have a basic understanding of Gentoo Portage and already set up layman initially:
layman -a kde && layman -a qt emerge @kde-next-live --autounmask-write=y
To make the most of it, run
layman -S && smart-live-rebuild
to get the latest packaging changes for qt and kde and update any live packages that got new commits since last time.
See also: Gentoo KDE/Frameworks Packaging Status
Now that Plasma 5 has been released, Fedora packaging only tracks the official Plasma 5 releases, not snapshots. See Plasma/Packages#Fedora for installation instructions.
Plasma 5 workspace is available through the official repositories. For the full installation, simply install plasma-next.
Frameworks 5 libraries are also in the official repositories under kf5 and kf5-aids.
There are git versions of the above, as well as many other Frameworks 5 applications installable through the AUR.
See the KDE page on the ArchWiki for more information.
Right now the default on siduction is KDE SC 4.x, however you can upgrade from your KDE SC 4 installation to KDE Frameworks + Plasma 5 + KDE Applications using the kdenext repository. Please note that the state of Plasma 5 in siduction is still experimental, so you may find some issues and you may want to stay with KDE SC 4.x for a while. In doubt, it's recommended to install it in a virtual machine to try it first.
Make sure you have done the following before upgrading:
deb http://packages.siduction.org/kdenext unstable main
To upgrade to Frameworks + Plasma 5 + latest KDE Applications:
deb http://packages.siduction.org/kdenext kde-frameworks main
Following the instructions here it will automatically build all KDE software that has a KF5 port, most notably the Plasma workspaces, but also development previews of Kate, Konsole and Dolphin.
Afterwards follow the guides for "Runtime setup" and then run "kwin --replace" and "plasmashell".
Kubuntu-based Live CD: http://files.kde.org/snapshots/neon5-latest.iso (More information at http://kshadeslayer.wordpress.com/2013/12/03/introducing-project-neon-5-isos/)
Fedora-based LiveCD: https://dvratil.fedorapeople.org/plasma5/iso/ (More information at http://www.progdan.cz/2014/05/kde-frameworks-5-beta-and-plasma-next-preview-on-fedora/)