We are preparing Kubuntu Disco Dingo (19.04) for release in April, 2019. With this Beta pre-release, you can see what we are testing in preparation for our next version.

The Kubuntu team will be releasing 19.04 in April.


This is Beta Release. Kubuntu Beta Releases are NOT recommended for:

  • Regular users who are not aware of pre-release issues
  • Anyone who needs a stable system
  • Anyone uncomfortable running a possibly frequently broken system
  • Anyone in a production environment with data or workflows that need to be reliable

Kubuntu Beta Releases are recommended for:

  • Regular users who want to help us test by finding, reporting, and/or fixing bugs
  • Kubuntu, KDE, and Qt developers

Please report your results on the Release tracker.

Getting Kubuntu 19.04 Beta

Upgrading from 18.10

Download a Disk Image

To upgrade to a Kubuntu 19.04 pre-release from 18.10, run do-release-upgrade -d from a command line.

Download a Bootable image and put it onto a DVD or USB Drive

Embrace the dark side with Plasma 5.15: simple by default, powerful when needed


Plasma 5, the new generation of KDE's desktop has been developed to make it smoother to use while retaining the familiar setup. The Plasma 5.15 series is the default in this version of Kubuntu.

KDE Applications 18.12.3


Kubuntu comes with KDE Applications 18.12.3 containing all your favourite apps from KDE. Provided is the 18.12.3 update with bugfixes and translation updates. Most applications have been ported to KDE Frameworks 5 but those which aren't should fit in seamlessly.

Non-KDE applications include LibreOffice 6.1 and Firefox 65.

Notable changes since 18.04 LTS

  • To ease the transition from legacy operating systems, double-click to open files and folders (select icons on first click) is now the default. To return to prior KDE defaults, use System Settings > Desktop Behavior.

Other highlights/notes

Minimal install option

This is now available in the installer for Kubuntu.

For Kubuntu this removes KDE PIM applications, Libreoffice, Cantata and mpd, and 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.

The removal list will be reviewed and possibly amended for final release. Feedback to that end is welcome.

Plasma Wayland session - Available for testing, but not supported

  • A Plasma Wayland session is included for testing, but is not supported. Users needing a stable desktop experience should select the normal 'Plasma' (without Wayland) option at login.

New applications

  • latte-dock 0.8.7 is now in the ubuntu archive
  • Falkon 3.0.1 (was qupzilla) is available in the archive
  • kio-gdrive enables KIO-aware applications (such as Dolphin, Kate or Gwenview) to access and edit Google Drive files on the cloud.

Known Problems

  • (1759328) & (KDE Bug: 391642) plasmashell crash when changing deskop containment from 'folder view' to 'desktop' (Should be fixed).

  • (1761396) Ubiquity offers the choice to encrypt home, but choosing it gives an error (Should be fixed).

All bugs tagged with Kubuntu

Older bugs:

  • (1442512) Apport-kde crash when reporting bugs

  • (1706859) Auto-selected keyboard layout no longer matches chosen region on "Where are you" page


Development of Kubuntu 19.04, Disco Dingo, is ongoing and bugs are fixed every day. Before reporting bugs, please ensure your system is up to date. For verifying installation related bugs, updated disk images are available from Daily bootable images for standard PCs and laptops.

You can give us feedback on Google +https://plus.google.com/u/0/107577785796696065138/posts or Facebookhttps://www.facebook.com/kubuntu.org or Twitterhttps://twitter.com/kubuntu.

DiscoDingo/Beta/Kubuntu (last edited 2019-03-31 18:27:49 by marco-parillo)