Warning: 14.04 LTS to 16.04 LTS upgrades are problematic, and should not be attempted by the average user. Please install a fresh copy of 16.04.1 instead. To prevent messages about upgrading, change Prompt=lts with Prompt=normal or Prompt=never in the /etc/update-manager/release-upgrades file.

See the 16.04.1 release announcement.

Download 16.04.1 images.

This is the first release from the team since we became a completely volunteer group, just after the release of 15.10. Delivering an Long-Term Release (LTS) release is a superb achievement, and testimony to our community’s commitment to Ubuntu and KDE.

Beta-tester feedback has been resounding and positive. This confirms the amazing work that is being undertaken by our upstream KDE community. Plasma 5, KDE Frameworks 5 and all of KDE continue to demonstrate how Free/Libre Open Source Software sets world class standards for innovation, usability and integration.

What can you expect from this latest release?

Our new software center: Plasma Discover brim-full of software to choose from.

The latest KDE PIM with lots of features and fixes Including the latest Akonadi support and integration with MySQL 5.7.

Plasma 5, the next generation of KDE’s desktop has been rewritten to make it smoother to use while retaining the familiar setup.

Kubuntu 16.04 comes with KDE Applications 15.12 containing all your favourite apps from KDE, including Dolphin. Even more applications have been ported to KDE Frameworks 5 but those which aren’t, should fit in seamlessly. For a complete desktop suite of applications we’ve included some non-KDE applications such as LibreOffice 5.1 and Firefox 45.

Keen developer types and friends of Muon Package Manager will be delighted to know that the project has got a new team of maintainers, and a new release just in time for this Kubuntu LTS.

What are you waiting for? Download the ISO from our downloads section, or upgrade now from 15.10!

Warning: 14.04 LTS to 16.04 LTS upgrade is currently problematic and should not be attempted by the average user. Please install a fresh copy of 16.04.1 instead. To prevent messages about upgrading, change Prompt=lts to Prompt=normal or Prompt=never in the /etc/update-manager/release-upgrades file.

The Kubuntu Podcast team will be reviewing the latest release, and discussing feedback from the community on the next show. More details available in the podcast section.

Please also check out our release notes.

We are preparing Kubuntu Xenial Xerus (16.04 LTS) for distribution on April 21, 2016. With this Beta 2 pre-release, you can see what we are trying out in preparation for our next stable version. We would love to get some testing by our users.

Plasma 5, the next generation of KDE’s desktop has been rewritten to make it smoother to use while retaining the familiar setup. The fifth set of updates to Plasma 5 is the default in this version of Kubuntu. Plasma 5.6 should be available in backports soon after release of the LTS.

Kubuntu comes with KDE Applications 15.12 containing all your favorite apps from KDE, including Dolphin. Even more applications have been ported to KDE Frameworks 5 but those which aren’t should fit in seamlessly. Non-KDE applications include LibreOffice 5.1 and Firefox 45.

Please see Release Notes for more details, where to download, and known problems. We welcome help to fix those final issues; please join the Kubuntu-Devel mail list[1], just hop into #kubuntu-devel on freenode to connect with us.

1. Kubuntu-devel mail list: https://lists.ubuntu.com/mailman/listinfo/kubuntu-devel

See the 14.04.2 release announcement.

Download 14.04.2 images.

See the 14.04.1 release announcement.

Download 14.04.1 images.

Welcome to Kubuntu 14.04 LTS, a brand new Long Term Supported version with the latest KDE software to enjoy.

Long Term Support means bugfixes and security updates will be added for the next 5 years, so you can be safe to use it until 2019. New releases of important KDE Software will also be available from the Kubuntu Updates and Kubuntu Backports PPAs.

Software Highlights of Kubuntu 14.04 LTS

KDE Applications and Platform 4.13

Fresh out today, the KDE Applications and Platform 4.13 release introduces a greatly improved semantic search as well as stabilization and improvements in key applications like Okular.

Mozilla Firefox

Kubuntu 14.04 introduces award winning Mozilla Firefox as default web browser.

Muon Discover 2.2

Muon Suite 2.2 brings additional improvements to our Software Center applications, resolving various problems and offering an altogether more refined experience.

All New Driver Manager

The previous Additional Drivers application is being replaced by the all new Driver Manager. The manager allows you to install and select the driver you want to use for software that has more than one supported driver, including proprietary drivers.

Gwenview Plugin Installation

Plugins in Gwenview can now be installed on-demand from inside the application.

New Touchpad Configuration

Our new touchpad configuration tools includes many configuration options to get your touchpad working just as you like.

KDE Instant Messaging 0.8

KDE Telepathy now has a meta contact support for grouping the same contact across different IM networks. The new release also includes more stability and polish than ever before.

Improved Localization Configuration

Language configuration has seen numerous changes, improving reliability and localization coverage beyond KDE technology.

Plasma Network Manager 0.9.3.3

The new Plasma Network Manager features a redesigned user interface, giving you more control while retaining a simple design.

KDE Software Development Kit

The newly available KDE software development kit equips new installations with everything necessary to write beautiful code using KDE and Qt technology, allowing everyone to quickly get started with writing code on Kubuntu 14.04. Install kde-developer-sdk to get started.

USB Creator Improvements

USB Creator has seen some nice bugfixes. Disks are selected when you expect them to, widgets can’t be shrunk to be too small, list sizing is done smartly.

KDE Connect 0.5

Install KDE Connect on your desktop and your Android mobile phone to integrate the two. Text messages will appear on your screen, files can be shared, your music can be controlled from your phone and your music will be turned off when you receive a phone call.

Automatic Crash Reporting

No software is perfect; Kubuntu 14.04 makes it easier than ever before to inform developers when something has gone terribly wrong, using the all new automatic crash reporting.

Quassel 0.10

The IRC client Quassel 0.10 reduces network traffic while improving overall reliability.

New System Notifications

Kubuntu’s built-in recommendation software now notifies you when better drivers for your hardware can be installed and when additional software can be installed to improve the language support.

Known Problems

• The software updater can close unexpectedly in very specific complicated update scenarios (Bug #1295437 and #1295440)

Additional problems being tracked can be found at Kubuntu 14.04 milestoned bugs.

Problems in the installer, graphics and kernel are listed on the common release notes.

Commercial Support

Our commercial support offering is now open, available for those who need the reassurance of help on the end of a phone line.

Feedback

Tell us what you think about Kubuntu 14.04 LTS on Google+.

“Trust only movement. Life happens at the level of events, not of words. Trust movement.”
— Alfred Adler

The first Alpha of the Trusty Tahr (to become 14.04) has now been released!

The Alpha-1 images can be downloaded at:
http://cdimage.ubuntu.com/kubuntu/releases/trusty/alpha-1/

More information on Kubuntu Alpha-1 can be found here:
https://wiki.ubuntu.com/TrustyTahr/Alpha1/Kubuntu