Memcached End of Life (EOL) Dates and End of Support (EOS) Dates

Latest Release: 1.6.45 (July 09, 2026)

2 Memcached versions have reached End of Life (EOL) and End of Support (EOS), including Memcached 1.5 (EOL date: Mar 09, 2020) — no longer receiving security updates or patches. Memcached 1.6.45 is the current supported release. Also see CockroachDB end of life dates for related end-of-life information.

Memcached end of life dates timeline — release schedule chart of the 3 most recent Memcached versions, mapping security support windows against their EOL dates — Memcached end of life dates and end of support (EOS) dates shown as a release schedule — support windows for the 3 most recent Memcached releases. Each bar runs from the release date to the end of security support, with the dashed line marking today. Exact Memcached EOL, EOS and EOSL dates for every version are listed in the tables below.

Currently Supported Memcached Releases - Active EOS/EOSL Support (1)

Release	Released	Security Support	Latest
1.6	Mar 08, 2020 (6 years and 5 months ago)	Active	1.6.45 2026-07-09 (1 month and 2 weeks ago)

Memcached End of Life (EOL) Releases - No Longer Supported (2)

Release	Released	Security Support	Latest
1.5	Jul 21, 2017 (9 years and 1 month ago)	Mar 09, 2020 (6 years and 5 months ago)	1.5.22 2020-02-01 (6 years and 6 months ago)
1.4	Jul 09, 2009 (17 years and 1 month ago)	Jul 21, 2017 (9 years and 1 month ago)	1.4.39 2017-07-04 (9 years and 1 month ago)

Memcached End of Life & Support Summary

Which Memcached Versions Are Currently Supported?

Memcached currently has 1 supported release. Memcached 1.6.45 is the latest. Also see SQLite EOSL information for related end-of-life information.

Memcached End of Life (EOL) Version History

2 Memcached releases have reached End of Life (EOL) and End of Support (EOS) — no longer receiving updates or patches. Memcached 1.5 reached EOL on Mar 09, 2020. Memcached 1.6.45 is the recommended upgrade for users still on End of Life versions.