Complete end-of-life dates, support windows, and security status for all Sles versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
| Version | Latest Release | Release Date | EOL Date | Days | Status |
|---|---|---|---|---|---|
| 10.0 | — | Jul 17, 2006 | Dec 31, 2007 | 6704 days past EOL | EOL |
| 10.1 | — | Jun 18, 2007 | Nov 30, 2008 | 6369 days past EOL | EOL |
| 10.2 | — | May 19, 2008 | Apr 11, 2010 | 5872 days past EOL | EOL |
| 11.0 | — | Mar 24, 2009 | Dec 31, 2010 | 5608 days past EOL | EOL |
| 10.3 | — | Oct 12, 2009 | Oct 11, 2011 | 5324 days past EOL | EOL |
| 11.1 | — | Jun 2, 2010 | Aug 31, 2012 | 4999 days past EOL | EOL |
| 10.4 | — | Apr 12, 2011 | Jul 31, 2013 | 4665 days past EOL | EOL |
| 11.2 | — | Feb 29, 2012 | Jan 31, 2014 | 4481 days past EOL | EOL |
| 11.3 | — | Jul 1, 2013 | Jan 31, 2016 | 3751 days past EOL | EOL |
| 12.0 | — | Oct 27, 2014 | Jun 30, 2016 | 3600 days past EOL | EOL |
| 11.4 | — | Jul 15, 2015 | Mar 31, 2019 | 2596 days past EOL | EOL |
| 12.1 | — | Dec 15, 2015 | May 31, 2017 | 3265 days past EOL | EOL |
| 12.2 | — | Nov 8, 2016 | Mar 31, 2018 | 2961 days past EOL | EOL |
| 12.3 | — | Sep 7, 2017 | Jun 30, 2019 | 2505 days past EOL | EOL |
| 15.0 | — | Jul 16, 2018 | Dec 31, 2019 | 2321 days past EOL | EOL |
| 12.4 | — | Dec 12, 2018 | Jun 30, 2020 | 2139 days past EOL | EOL |
| 15.1 | — | Jun 24, 2019 | Jan 31, 2021 | 1924 days past EOL | EOL |
| 12.5 | — | Dec 9, 2019 | Oct 31, 2024 | 555 days past EOL | EOL |
| 15.2 | — | Jul 21, 2020 | Dec 31, 2021 | 1590 days past EOL | EOL |
| 15.3 | — | Jun 22, 2021 | Dec 31, 2022 | 1225 days past EOL | EOL |
| 15.4 | — | Jun 21, 2022 | Dec 31, 2023 | 860 days past EOL | EOL |
| 15.5 | — | Jun 20, 2023 | Dec 31, 2024 | 494 days past EOL | EOL |
| 15.6 | — | Jun 26, 2024 | Dec 31, 2025 | 129 days past EOL | EOL |
| 15.7 | — | Jun 17, 2025 | Jul 31, 2031 | 1909 days remaining | Active |
| 16.0 | — | Nov 4, 2025 | Nov 30, 2027 | 570 days remaining | Active |
When a Sles 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 Sles 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.
Upload requirements.txt, package.json, or Gemfile — full EOL report instantly.
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