These release notes for Kubuntu 18.04.1 LTS (Bionic Beaver) provide an overview of the release and document the known issues.

Support lifespan

Kubuntu 18.04.1 will be supported for 3 years.

Getting Kubuntu 18.04.1 LTS

Upgrading from 17.10

Download a Disk Image

Note: Upgrades from 16.04 LTS will not be enabled until a few days after the 18.04.1 release expected in late July.

Detailed upgrade instructions with screenshots can be found here:

Kubuntu 17.10 to 18.04.1 Upgrade

- Download a Bootable image. Direct downloads, torrents, and zysnc are available as options.
- The following link contains some tips to put the image onto a DVD or USB Drive

New features and changes in 18.04.1

Core desktop and applications

Embrace the dark side with Plasma 5.12 LTS: simple by default, powerful when needed


Plasma 5.12 LTS, the latest release of KDE's desktop has been developed to make it smoother to use while retaining the familiar setup.

Plasma Vault, for creating and managing encrypted folders seamlessly in Plasma, also arrives in the Ubuntu archive with this release.

KDE Applications 17.12.3


Kubuntu comes with KDE Applications 17.12 containing all your favourite apps from KDE.

Provided is the 17.12.3 update with bugfixes and translation updates. All the KDE applications on the ISO have been ported to KDE Frameworks 5 and any remaining in the archive that aren't should fit in seamlessly.

Web browser and office suite

Other applications

New KDE applications in the Ubuntu archive

Updated applications

Other notable changes to applications since 16.04 LTS

Kubuntu switches to a dark Breeze Plasma theme

Important default settings changes

Minimal install option

This is now available in the installer for Kubuntu.

For Kubuntu this removes KDE PIM applications, Libreoffice, Cantata and mpd, plus some additional internet and media applications. At present a full Plasma Desktop is left in place, plus basic applications and utilities. Firefox as a browser, and VLC as a media player, are also retained.

Snap integration in Plasma Discover software centre

For the 18.04 initial release, the snap integration backend for Plasma Discover is not installed by default. Users wishing to use or test should install the package plasma-discover-snap-backend.

User feedback is requested from those who use or test this integration, so we can evaluate whether to install the backend by default for upcoming 18.04 point releases.

Feedback links are at the end of these release notes.

Other highlights/notes

Plasma Wayland session - Can be installed for testing, but is not supported for 18.04

Known Problems

KDE Bug:

Ubuntu/Kubuntu bugs:

Search other Bugs tagged Kubuntu 18.04

Older bugs:


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BionicBeaver/ReleaseNotes/Kubuntu (last edited 2018-08-31 20:13:52 by rikmills)