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End of life  /  Debian  /  3.1

End of life

Debian 3.1 is past end of life.

Security fixes stopped on 31 Mar 2008, 6786 days ago. New vulnerabilities in 3.1 won’t be fixed.

Released
6 Jun 2005
Active support
ended 31 Mar 2008
Security fixes
ended 31 Mar 2008
Latest
3.1r8

Upgrade to Debian 13: security fixes until 30 Jun 2030.

Release cycles

Every Debian cycle, at a glance.

Active support means bug fixes and security fixes; after it, security fixes only. Past the end of security support, nothing.

  1. 13
  2. 12
  3. 11
  4. 10
  5. 3.1
  • Active support
  • Security fixes only
  • Supported
  • Ends within 90 days
  • Ended
All 18 Debian cycles →

What to upgrade to

Go to 13.

13 is the newest supported Debian cycle, with security fixes until 30 Jun 2030.

Before you upgrade

Upgrade one release at a time, after a backup. A fresh server on the new release is often quicker.

How to check your version

Which Debian is this site on?

On the server

$ cat /etc/debian_version
12.12

Release name

$ cat /etc/os-release
VERSION="12 (bookworm)"

Know before support ends.

Porro reads the PHP, framework and database version from every site and tells you 90 days before support runs out.

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Dates from endoflife.date/debian, checked daily · data as of 29 Oct 2026.