Summary
Qubes OS is a security-focused desktop operating system that uses Xen-based virtualisation to isolate different workloads into separate virtual machines ("qubes"). It is designed for users who require strong security compartmentalisation, such as security researchers, journalists, and high-risk individuals. Qubes OS has versioned releases with defined support windows.
Lifecycle Data Source
Qubes OS publishes an official supported releases page that lists all versions, their release dates, and their end-of-life dates. Each release is supported for approximately 6 months after the next release is published, giving each version roughly 12-18 months of active support.
Official sources:
Machine-readable data:
Qubes OS does not have a product entry on endoflife.date (the /api/qubes-os.json endpoint returns 404 as of 2026-04-21). There is no machine-readable JSON/YAML lifecycle file published by the Qubes OS project.
The official supported releases page (https://www.qubes-os.org/doc/supported-releases/) is the authoritative source and would need to be scraped or manually maintained. A GitHub issue could be filed with endoflife.date to add Qubes OS to their database.
Known lifecycle data (from official docs as of 2026-04-21):
- Qubes OS 4.2: released 2023-12-18, EOL 2024-06-18 (approximate)
- Qubes OS 4.1: released 2022-02-04, EOL 2024-06-18
Notes
- Qubes OS has an unusually short support window (~6 months post next-release), so users should be prompted to upgrade frequently.
- The project is slow-moving with major releases every 2-3 years; there is typically only one supported version at a time.
- Qubes OS versioning follows a major.minor scheme (e.g. 4.2), with point releases within the same major lifecycle.
- The official docs page at https://www.qubes-os.org/doc/supported-releases/ is the most reliable data source and is relatively stable/parseable.
Summary
Qubes OS is a security-focused desktop operating system that uses Xen-based virtualisation to isolate different workloads into separate virtual machines ("qubes"). It is designed for users who require strong security compartmentalisation, such as security researchers, journalists, and high-risk individuals. Qubes OS has versioned releases with defined support windows.
Lifecycle Data Source
Qubes OS publishes an official supported releases page that lists all versions, their release dates, and their end-of-life dates. Each release is supported for approximately 6 months after the next release is published, giving each version roughly 12-18 months of active support.
Official sources:
Machine-readable data:
Qubes OS does not have a product entry on endoflife.date (the
/api/qubes-os.jsonendpoint returns 404 as of 2026-04-21). There is no machine-readable JSON/YAML lifecycle file published by the Qubes OS project.The official supported releases page (https://www.qubes-os.org/doc/supported-releases/) is the authoritative source and would need to be scraped or manually maintained. A GitHub issue could be filed with endoflife.date to add Qubes OS to their database.
Known lifecycle data (from official docs as of 2026-04-21):
Notes