Hello TUXEDO Fans and Open-Source Enthusiasts!
Traditionally, developers number their software versions following the semantic pattern Major.Minor.Patch, for example, KDE Plasma 6.5.5. To clearly distinguish development versions from stable releases, some projects also rely on even and odd version numbers. For instance, GIMP 3.1.x is the development version leading up to a future GIMP 3.2. Other projects abandon this numerical scheme entirely and instead use the release date – like Ubuntu 24.04, which was released in April 2024.
The Linux kernel has also gone through various versioning schemes over the years. Up until Linux 2.6.39 (released in May 2011), the version number followed the classic cascade. With the jump to Linux 3.0, this changed: since then, versions run only from x.0 to x.19, after which the first digit is incremented to mark the next generation. This explicitly does not indicate major upheavals or dramatic changes. Linus Torvalds simply dislikes numbers that cannot be counted on ten fingers and ten toes – as he wryly noted in his announcement for Linux 6.19 here . Large numbers are simply confusing.
So it should come as no surprise: on February 8, Linux 6.19, the last kernel of the 6.x series, was released, and the next version is already Linux 7.0. The transition is seamless, as the so-called „merge window“ opened on February 9, 2026. The first test version is expected later in February. Meanwhile, many users are waiting for Linux 6.19 to arrive in their distributions. Rolling-release systems like Arch Linux or openSUSE Tumbleweed are expected to deliver the update first, as usual.
At TUXEDO OS, we take a deliberately more conservative approach. We test new kernels intensively on our own hardware, selectively adopt certain innovations in advance, and of course integrate security-relevant patches promptly. For reasons of stability – and especially to maintain compatibility with our current Ubuntu base – we do not chase every new version immediately. Currently, we rely on the software stack of Ubuntu 24.04 and place great value on ensuring all components work reliably together. So it will take a little longer before Linux 7.0 arrives on your TUXEDO. However, this does not affect the functionality or performance of your system in any way.
Enjoy reading,
The TUXEDO OS Team
Note: We would like to keep you updated on the latest developments in TUXEDO OS with the TWIX series and introduce you to exciting applications as well as practical tips related to the KDE desktop and TUXEDO OS. However, this section should not be a one-way street: your feedback, ideas, and suggestions for improvement are very welcome! For this purpose, we have created a thread on Reddit, where you can reach us directly.
Updates in TUXEDO OS
tuxedo-tomte 3.0.0 (Debian)
Introduced as a transitional package
Further information about migrating to TUXEDO Tomte Light
mixxx 2.5.4+dfsg-1~tux1
tuxedo-yt6801 1.0.30~tux6
Fix: Disabled ASPM on affected devices (Stellaris Slim 15 Intel Gen6, InfinityBook Pro 14 AMD Gen9, InfinityBook Pro 15 AMD Gen9)
tuxedo-reboot-into-grub 1.0.4
Improvement: Now checks whether the output of LANG is empty
TUXEDO Control Center 2.1.23
New: Added additional device ID for Gemini 17 Gen4 (Intel)
New: Added desktop shortcut to the TUXEDO category
Fix: Removed unused platform profiles for InfinityBook Max Gen10 (AMD)
Fix: Resolved unintended dGPU wake-up when reading display brightness in on-demand mode
apparmor 4.1.3–2~really4.0.1~tux3
Downgraded to original version 4.0.1
Integrated missing but required Qt 6 profiles
Related reports: Reddit , Reddit
apparmor 4.1.3–1~tux1
Rebuilt current Debian version
Reason: Ubuntu 25.10 ships AppArmor 5.0 beta
alsa-ucm-conf 1.2.10–8tux1
Synced patches with Ubuntu
tuxedo-webfai-creator 2.0.1+52192a09
KDE App of the Week: GCompris - KDE for Kids
KDE Plasma offers a wide range of applications with an educational focus. One of the outstanding applications in this area is GCompris . Don’t let the “G” instead of a “K” at the beginning confuse you. The name comes from the French j’ai compris , which means I understood . Since the latest update on February 4, 2026, GCompris includes 197 different activities.
From 2 to 10 years
GCompris was launched in 2000 and is released under the GNU Affero General Public License. It is a cross-platform learning suite for children aged 2 to 10 and is part of the GNU project. With nearly 200 entertaining activities, the collection ensures that children can acquire skills such as recognizing letters and numbers, using a mouse and keyboard, basic algebra training, reading the time on an analog clock, vector drawing, playful language learning, and much more.
The program also includes a simple word processor for creating documents with basic formatting. Another feature is the animation tool, which serves as a straightforward and effective way to support storytelling. This encourages communication with children and motivates them to express themselves creatively.
The various activities are grouped in a yellow bar on the left side of the screen, from which children can select them directly after starting the program. This design makes it easy to add new activities or adapt the application to specific requirements. Both the program itself and all included activities are available in numerous languages.
The clear menu displays all learning activities at a glance, making it easy for children to choose and navigate quickly for playful learning.
New activities
With the update to version 26.0, two new activities were added. Drawing Wheels allows children to create artwork using rotating gears and promotes fine motor skills as well as an understanding of geometry. Multiple Choice Questions integrates multiple-choice tests that can be activated via the new GCompris Teachers tool and are ideal for homeschooling.
Children can creatively draw with rotating gears, explore shapes, and develop fine motor skills, geometric understanding, and imagination – all without pen and paper.
The new tool GCompris Teachers is a companion application that was officially released for the first time with version 26.0. It is aimed at educators and parents who want to optimize the use of the 197 learning activities in classrooms or homeschooling environments.
Availability
GCompris is not preinstalled on TUXEDO OS, but it is available in the Discover software store as a Debian package and as a Flatpak. Alternatively, you can install the application via the terminal using the following command:
sudo apt update && sudo apt install gcompris-qt
Further information and a download link for GCompris Teachers can be obtained on a dedicated Website .
Info: Are you interested in Plasma development and want to know what new features are planned and which programs have been recently updated? You can find a detailed overview in the weekly column This week in Plasma by KDE developer Nate Graham.
TUXEDO OS Tips & Tricks: Klassy – Customize and Configure KDE Plasma in Style
With Klassy, the KDE Plasma desktop can be refreshed visually and carefully customized down to the smallest detail. Unlike many purely „eye-candy“ themes, Klassy is a complete Global Theme that combines window decorations, application style, color scheme, Plasma style, and icons.
The result is a coherent, everyday-ready desktop that builds on the familiar Breeze design while taking it further. Particularly striking—and very pleasant in daily use—are the extensively configurable scrollbars, which rank among the most polished in the KDE ecosystem.
Getting Started with Klassy in TUXEDO OS
Installation is straightforward via the provided packages, which are available, among other places, through the openSUSE Build Service . A helpful starting point is also the project’s GitHub page , where background information, design decisions, and ongoing developments are documented.
Installation
To install Klassy on TUXEDO OS, open the link to the openSUSE Build Service in your browser and follow the links for Ubuntu » Download Binary Packages » Packages for xUbuntu 25.10 . Then download the latest AMD64 version, currently the file klassy_6.5.2–1_amd64.deb . Next, open a file manager and double-click the downloaded file. You can then install the package via the Discover package manager.
Installing the Klassy DEB package via Discover, KDE’s graphical package manager that guides the installation process and automatically handles all necessary dependencies.
Alternatively, you can use the terminal. If the file is in the Downloads folder, run the following commands. Keep in mind that because Klassy is not installed from a package repository, the theme and the configuration tool do not receive automatic updates. If you use Klassy for a longer period, check occasionally for new versions.
cd Downloads
sudo apt install ./klassy*.deb
Activating the Theme
After installation, it is recommended to first activate the global theme Kite in one of its variants, for example Kite Light – Bottom Panel (Klassy) or Kite Dark – Left Panel (Klassy) . This is done via System Settings under Quick Settings » Global Theme . Using a left-positioned panel is particularly useful if you are working on a widescreen display.
Activating Klassy via the KDE System Settings, ensuring that all components of the global theme are selected for full functionality.
It is important to apply the theme fully through this view so that all components are correctly set. Make sure the checkboxes for Appearance Settings and Desktop and window layout are enabled. Only after this should you switch between light and dark modes or enable automatic day/night switching.
TUXEDO OS with Klassy theme activated, showing transparent titlebars and subtly animated scrollbars for a modern, clean desktop appearance.
Customization and Fine-Tuning
For detailed adjustments, Klassy comes with its own configuration tool: Klassy Settings . You can first select predefined presets, which give a good impression of the available options and serve as a solid starting point. Then you can customize individual aspects in detail.
Klassy Settings displays the theme’s comprehensive configuration tool, allowing detailed control over window decorations and the overall appearance.
These include the shape, size, and spacing of window buttons, different button styles from classic rounded to „Traffic Lights“, transparent or opaque titlebars, as well as finely adjustable borders and corner radii with HiDPI support. Colors and highlights can also be linked to the system-wide accent color scheme for a consistent overall look.
Various presets can be loaded, including designs inspired by familiar Windows or macOS interfaces, providing a starting point for customization.
Numerous details, such as titlebar transparency, can be fine-tuned in Klassy Settings to tailor the appearance exactly to your preferences.
Another advantage is the included application style and icon theme. Enabling both ensures that not only KDE applications but also many GTK programs appear visually consistent. Context menus, tabs, and dockable panels blend seamlessly without looking out of place. Configurable scrollbars and subtle animations further enhance usability without being intrusive.
Minimal visual differences between GNOME’s Files and KDE Dolphin when displayed side by side, as Klassy provides matching icons and styles for GNOME applications as well.
Klassy is aimed at users who want to use KDE Plasma long-term and value a calm, well-organized desktop. Spending a little time exploring presets and settings rewards you with a desktop that is simultaneously classic, modern, and surprisingly flexible. Further information, source code, and discussions can be found on the GitHub page , and packages for testing are available via Download .
Ubuntu Security Updates
The security updates listed here from Ubuntu are directly integrated into TUXEDO OS:
USN-8040–1: MUNGE vulnerability : MUNGE could be made to crash or run programs as your login if it opened a specially crafted file.
IDs: CVE-2026–25506
Affects: Ubuntu 25.10, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS, Ubuntu 14.04 LTS
USN-8039–1: libpng vulnerability : libpng could be made to crash if it opened a specially crafted file.
IDs: CVE-2026–25646
Affects: Ubuntu 25.10, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS
USN-8038–1: nginx vulnerability : nginx could be made to insert content into proxied server data.
IDs: CVE-2026–1642
Affects: Ubuntu 25.10, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS
USN-8037–1: DNSdist vulnerabilities : Several security issues were fixed in dnsdist.
IDs: CVE-2025–30187, CVE-2025–30193, CVE-2025–8671
Affects: Ubuntu 25.10, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS
USN-8015–4: Linux kernel vulnerabilities : Several security issues were fixed in the Linux kernel.
IDs: CVE-2025–38561, CVE-2025–39698, CVE-2025–40019
Affects: Ubuntu 24.04 LTS, Ubuntu 22.04 LTS
USN-8027–1: Python-Multipart vulnerabilities : Several security issues were fixed in Python-Multipart.
IDs: CVE-2024–53981, CVE-2024–24762, CVE-2026–24486
Affects: Ubuntu 24.04 LTS, Ubuntu 22.04 LTS
USN-8028–1: Linux kernel vulnerabilities : Several security issues were fixed in the Linux kernel.
IDs: CVE-2025–38702, CVE-2025–38351, CVE-2025–39694 + 750 others
Affects: Ubuntu 24.04 LTS
USN-8024–1: Libwebsockets vulnerabilities : Several security issues were fixed in Libwebsockets.
IDs: CVE-2025–11677, CVE-2025–11678
Affects: Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS
USN-8023–1: xmltok library vulnerabilities : Several security issues were fixed in the xmltok library.
IDs: CVE-2026–24515, CVE-2026–25210
Affects: Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS
USN-8021–1: ImageMagick vulnerability : ImageMagick could be made to crash or run programs as your login if it opened a specially crafted file.
IDs: CVE-2026–23876
Affects: Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS, Ubuntu 14.04 LTS
USN-8020–1: libsoup vulnerabilities : Several security issues were fixed in libsoup.
IDs: CVE-2026–1539, CVE-2026–1536, CVE-2026–1467
Affects: Ubuntu 25.10, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS
USN-8004–2: FreeRDP regression : USN-8004–1 introduced a regression in FreeRDP.
IDs: CVE-2026–23533
Affects: Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS