Memcached 1.5 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
Memcached 1.5 reached end of life on 9 Mar 2020. It no longer receives security fixes.
2,344 days without security patches
Recommended action: upgrade to Memcached 1.6. Check your versionmemcached -h
Support timeline
Official dates from the Memcached release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 21 Jul 2017 | — |
| End of life | 9 Mar 2020 | 6.4 years ago |
| Latest release | 1.5.22 · 1 Feb 2020 | final |
Where to go from 1.5
Recommended target: Memcached 1.6.
The newest actively supported branch is Memcached 1.6 (latest release 1.6.45).
Frequently asked questions
Is Memcached 1.5 still safe to use?
Memcached 1.5 reached end of life on 9 Mar 2020, 2,344 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Memcached 1.5?
Yes — the final release (1.5.22) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Memcached 1.5 to?
Upgrade to Memcached 1.6, the newest actively supported branch.