Complete end-of-life dates, support windows, and security status for all Longhorn versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
| Version | Latest Release | Release Date | EOL Date | Days | Status |
|---|---|---|---|---|---|
| 1.1 | 1.1.3 | Dec 18, 2020 | Apr 23, 2022 | 1477 days past EOL | EOL |
| 1.2 | 1.2.6 | Aug 31, 2021 | Oct 6, 2022 | 1311 days past EOL | EOL |
| 1.3 | 1.3.3 | Jun 15, 2022 | Aug 11, 2023 | 1002 days past EOL | EOL |
| 1.4 | 1.4.4 | Dec 30, 2022 | Mar 13, 2024 | 787 days past EOL | EOL |
| 1.5 | 1.5.5 | Jul 7, 2023 | Jul 19, 2024 | 659 days past EOL | EOL |
| 1.6 | 1.6.4 | Feb 1, 2024 | Mar 29, 2025 | 406 days past EOL | EOL |
| 1.7 | 1.7.3 | Aug 20, 2024 | Sep 4, 2025 | 247 days past EOL | EOL |
| 1.8 | 1.8.2 | Jan 22, 2025 | Already EOL | Supported | Active |
| 1.9 | 1.9.2 | May 27, 2025 | Already EOL | Supported | Active |
| 1.10 | 1.10.2 | Sep 25, 2025 | Already EOL | Supported | Active |
| 1.11 | 1.11.2 | Jan 29, 2026 | Already EOL | Supported | Active |
When a Longhorn version reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the accumulation of unpatched vulnerabilities in EOL software. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no patch will ever exist. This is the most dangerous gap in enterprise security posture.
Organizations running EOL Longhorn should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.
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