Q4OS 5.5 Aquarius has been released as a major update to the Q4OS 5 Aquarius LTS series. This update integrates recent Debian Bookworm 12.6 updates, the updated Debian stable 6.1.0-22 kernel, and important security and bug fixes. It includes Q4OS-specific improvements, a cumulative upgrade from the previous stable release, and enhancements to the Calamares installer, Q4OS Setup tool, and Desktop profiler. Updated packages are being pushed to Q4OS repositories, and existing users will be automatically upgraded. Installation media images are available for download from the Q4OS website.
Download Q4OS 5.51 images
ISO
q4os-5.5-x64.r1.iso
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Other releases
6.1
2025-09-14
5.8
2025-03-27
5.7 “Aquarius LTS”
2024-11-14
5.6
2024-09-04
5.4 “Aquarius”
2023-11-29
5.2 “Aquarius”
2023-07-08
4.12
2023-05-03
4.11 “Gemini”
2022-12-24
4.10 “Gemini”
2022-08-01
4.8 “Gemini”
2022-05-05
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