End of life / Alpine Linux / 3.21
Ends in 3 days
Alpine Linux 3.21 support ends on 1 Nov 2026.
Security fixes only until then. Plan the upgrade now; after that date new vulnerabilities stay open.
- Released
- 5 Dec 2024
- Active support
- —
- Security fixes
- until 1 Nov 2026
- Latest
- 3.21.9
Upgrade to Alpine Linux 3.24: security fixes until 1 Jun 2028.
Release cycles
Every Alpine Linux cycle, at a glance.
Active support means bug fixes and security fixes; after it, security fixes only. Past the end of security support, nothing.
- Active support
- Security fixes only
- Supported
- Ends within 90 days
- Ended
Cycle
Status
Released
Active until
Security until
Latest
What to upgrade to
Go to 3.24.
3.24 is the newest supported Alpine Linux cycle, with security fixes until 1 Jun 2028.
Before you upgrade
In a Dockerfile, raise the alpine tag in FROM and rebuild the image.
How to check your version
Which Alpine Linux is this site on?
On the server
In a Dockerfile
Know before support ends.
Porro reads the PHP, framework and database version from every site and tells you 90 days before support runs out.
Dates from endoflife.date/alpine, checked daily · data as of 29 Oct 2026.