Q4OS

Q4OS
Q4OS 4.8 (Gemini) running the Trinity Desktop Environment version R14.0.11
DeveloperQ4OS development team
OS familyUnix-like
Working stateCurrent
Source modelOpen source
Initial release0.5.0 / 4 July 2013 (2013-07-04)
Latest release5.8  / 27 March 2025 (27 March 2025)
Available inMultilingual
Update methodAPT
Package managerdpkg
Platformsx86-64, i386, armhf, arm64
Kernel typeLinux kernel
UserlandGNU
Default
user interface
TDE, KDE Plasma
LicenseFree software licenses (mainly GPL) + some proprietary
Official websiteq4os.org

Q4OS is a light-weight Linux distribution based on Debian, targeted as a replacement for operating systems that are no longer supported on outdated hardware. The distribution is known for an addon called XPQ4, which adds themes intended to replicate the look and feel of Windows 2000, XP, 7, 8 and 10.