Lubuntu 18.10 (Cosmic Cuttlefish) Released

Lubuntu 18.10 (Cosmic Cuttlefish) Released

Linux Distribution

Lubuntu 18.10 (Cosmic Cuttlefish) Released

 Lubuntu 18.10 has been released! With the codename Cosmic Cuttlefish, Lubuntu 18.10 is the 15th release of Lubuntu and the first release of Lubuntu with LXQt as the default desktop environment, with support until July of 2019.

Translated into: español

What is Lubuntu?

Lubuntu is an official Ubuntu flavor which uses the Lightweight Qt Desktop Environment (LXQt). The project’s goal is to provide a lightweight yet functional Linux distribution based on a rock-solid Ubuntu base. Lubuntu provides a simple but modern and powerful graphical user interface, and comes with a wide variety of applications so you can browse, email, chat, play, and be productive.

Welcome to LXQt

This is the first Lubuntu release with LXQt as the main desktop environment. The Lubuntu project, in 18.10 and successive releases, will no longer support the LXDE desktop environment or tools in the Ubuntu archive, and will instead focus on the LXQt desktop environment. You can find the following major applications and toolkits installed by default in this release:

  • LXQt 0.13.0, with many bugfixes and improvements backported from upstream.
  • Qt 5.11.1, which is the first point release in the Qt 5.11 series.
  • Mozilla Firefox 62, which will receive updates from the Ubuntu Security Team throughout the support cycle of the release.
  • The LibreOffice 6.1.2 suite, with the Qt 5 frontend.
  • VLC 3.0.4, for viewing media and listening to music.
  • Featherpad 0.9.0, for notes and code editing.
  • Discover Software Center 5.13.5, for an easy, graphical way to install and update software.
  • The powerful and fast email client Trojitá 0.7 to get you to inbox zero in no time.

You can find a variety of other applications installed which aim to enhance your experience while staying out of the way of your normal workflow.


Lubuntu has switched to using the Calamares system installer in place of the Ubiquity installer that other flavors use. Calamares is a universal installer framework that aims to be easy, usable, beautiful, pragmatic, inclusive, and distribution-agnostic.

In this cycle our main focus was working out any issues that arose from the switch in installer, especially around the Ubuntu tooling which is geared towards the use of Ubiquity, so it lacks features such as the minimal install, but in the next cycle we are going to put an emphasis on improving feature parity.

Unfortunately though, we had issues with EFI systems and encrypted LUKS systems setting up GRUB correctly. In the meantime, you are encouraged to utilize the enhanced and simple-to-use manual partitioning experience provided by Calamares. Otherwise, the Lubuntu QA Team has been hard at work testing many installation combinations to ensure everything else is working as expected. You can find a full chart of tested installations here.

Thanks to Adriaan de Groot and many others on the Calamares team; without you, Calamares would not have worked as well as it does for us.

Lubuntu Manual

The Lubuntu Team has been hard at work in polishing a Lubuntu Manual book to make it easy for new and experienced users alike to use their system more productively. The book can be found at

We will eventually ship this in the default install of Lubuntu, but for now our goal is to polish it and receive feedback from the community, so it will stay published as a website only for now.

The manual is built using Sphinx, and the source can be found on our Phabricator instance here, or if you prefer to use GitHub to contribute, it is mirrored there as well.

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