While the latest version, Trisquel 9.0 is based on Ubuntu 18.04.5 LTS, but with all the proprietary software and firmware removed from the codebase, and all supported packages are up-to-date with security patches.
Trisquel GNU/Linux is among the few operating systems directly endorsed and listed under the “Free GNU/Linux Distributions” by the Free Software Foundation (FSF), as such Trisquel is 100% free and contains only free software with Linux-libre kernel, which means that non-free firmware like drivers, and everything deemed non-free by the FSF are completely eliminated.
Trisquel has “Abrowser” as the default web browser, which is Trisquel's version of Mozilla's popular web browser with the trademarked logos removed; it now includes all the latest updates from the upstream Mozilla Firefox. And Trisquel 9.0 has added backports to provide extended hardware support, with latest software like LibreOffice.
What's New in Trisquel 9.0 “Etiona” Release
Trisquel 9.0 runs the lightweight GNOME 2.x fork, known as MATE as the default desktop environment, and under the hood is Ubuntu 18.04 LTS, albeit the Trisquel team added a little tweak to make the Ubuntu-derivative truly unique.
And the Trisquel Mini with the LXDE desktop environment is perfect for those who want a low-resource hungry desktop for older machines and netbooks, but if you’re looking for a modern look and highly customizable desktop, then you should go for the Triskel edition featuring KDE plasma.
Additionally, LibreOffice is added to Trisquel 9.0, also added is GIMP, Icedove (Thunderbird replacement), and other useful tools, and applications, including: VLC, Brasero, Rhythmbox, and the MATE software/tools collection.
How to Download and Install Trisquel 9.0
If you're new to Trisquel and want to give the new Trisquel 9.0 a spin, you can get the ISO image from the official download page. With all the different editions, including: Trisquel MATE, Triskel KDE, Trisquel Mini and Trisquel Sugar Toast, available in both 32-bit and 64-bit versions.
Trisquel 9.0 Etiona as an LTS release, means that the development team has already begun work on the next version, Trisquel 10 and you can join the community forum for help in installing the operating system or to contribute to the project.