Alpine Linux 3.21 · Version Status
Alpine Linux 3.21 End of Life Date
Alpine Linux 3.21 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Alpine Linux 3.21 reaches end of life on November 1, 2026. Plan your migration now — 176 days remaining.
EOL Date
Nov 1, 2026
176 days remaining
Latest Release
3.21.7
Standard release
Release Date
Dec 5, 2024
Alpine Linux 3.21 series
All Alpine Linux Versions
| Version | Latest | EOL Date | Status |
|---|
| 2.1 |
2.1.6 |
Nov 1, 2012 |
EOL |
| 2.2 |
2.2.5 |
May 1, 2013 |
EOL |
| 2.3 |
2.3.6 |
Nov 1, 2013 |
EOL |
| 2.4 |
2.4.11 |
May 1, 2014 |
EOL |
| 2.5 |
2.5.4 |
Nov 1, 2014 |
EOL |
| 2.6 |
2.6.8 |
May 1, 2015 |
EOL |
| 2.7 |
2.7.9 |
Nov 1, 2015 |
EOL |
| 3.0 |
3.0.6 |
May 1, 2016 |
EOL |
What does Alpine Linux 3.21 end of life mean?
When Alpine Linux 3.21 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Alpine Linux 3.21 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Alpine Linux 3.23 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Alpine Linux 3.21 reach end of life?
Alpine Linux 3.21 reached end of life on November 1, 2026. That is 176 days remaining.
Is Alpine Linux 3.21 still supported?
Alpine Linux 3.21 is still supported but approaching end of life on November 1, 2026. Begin planning your migration now.
What should I upgrade to from Alpine Linux 3.21?
The recommended upgrade from Alpine Linux 3.21 is
Alpine Linux 3.23 — the latest actively supported version. Check the
Alpine Linux full timeline for all supported versions.
What are the security risks of running Alpine Linux 3.21 past EOL?
When Alpine Linux 3.21 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Alpine Linux should migrate immediately or implement compensating controls.