Mattermost 12.x — End of Life
EOL soonMattermost 12.x is still supported until Jan 15, 2027, in 84 days. The most recent release in this series is 12.0.1. No CVE is currently tracked for Mattermost 12.x.
Mattermost 12.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status | Alert me |
|---|---|---|---|---|---|---|
| 12.0 | Oct 16, 2026 | — | Jan 15, 2027 | 12.0.1 | EOL soon |
CVEs affecting Mattermost 12.x (0)
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[](https://eolcanary.com/explore/mattermost/12)Frequently asked questions
Is Mattermost 12 end of life?
No. Mattermost 12.x is still supported until January 15, 2027. It continues to receive security patches and bug fixes.
What CVEs affect Mattermost 12?
No CVEs are currently tracked for Mattermost 12.x in the NVD data we monitor.
What is the latest Mattermost 12 version?
The latest Mattermost 12.x patch release is 12.0.1, released on October 22, 2026. Always run the latest patch to benefit from all security fixes.
When was Mattermost 12 first released?
Mattermost 12.0 was released on October 16, 2026. See the full version timeline in the table above.
Is it safe to run Mattermost 12 in production?
Yes, Mattermost 12 is still supported. Support ends on January 15, 2027. Make sure you run the latest patch (12.0.1) to have all security fixes applied.
Data sourced from endoflife.date · CVE data from NVD · EPSS from FIRST.org · KEV from CISA