mattermost end of life dates — full support timeline
51 of 55 tracked mattermost releases have already reached end of life. The dates below are published support dates, not estimates.
Version support timeline
| Release | Released | End of life | Latest | Status |
|---|---|---|---|---|
| 11.9 | 2026-07-16 | 2026-10-15 | 11.9.0 | ends soon |
| 11.8 | 2026-06-16 | 2026-09-15 | 11.8.4 | ends soon |
| 11.7 | 2026-05-15 | 2027-05-15 | 11.7.8 | supported |
| 11.6 | 2026-04-16 | 2026-07-15 | 11.6.6 | ended |
| 11.5 | 2026-03-16 | 2026-06-15 | 11.5.7 | ended |
| 11.4 | 2026-02-16 | 2026-05-15 | 11.4.5 | ended |
| 11.3 | 2026-01-16 | 2026-04-15 | 11.3.3 | ended |
| 11.2 | 2025-12-16 | 2026-03-15 | 11.2.4 | ended |
| 11.1 | 2025-11-14 | 2026-02-15 | 11.1.3 | ended |
| 11.0 | 2025-10-16 | 2026-01-15 | 11.0.7 | ended |
| 10.12 | 2025-09-16 | 2025-12-15 | 10.12.4 | ended |
| 10.11 | 2025-08-15 | 2026-08-15 | 10.11.22 | ends soon |
| 10.10 | 2025-07-16 | 2025-10-15 | 10.10.3 | ended |
| 10.9 | 2025-06-16 | 2025-09-15 | 10.9.5 | ended |
| 10.8 | 2025-05-16 | 2025-08-15 | 10.8.4 | ended |
| 10.7 | 2025-04-16 | 2025-07-15 | 10.7.4 | ended |
| 10.6 | 2025-03-16 | 2025-06-15 | 10.6.6 | ended |
| 10.5 LTS | 2025-02-16 | 2025-11-15 | 10.5.14 | ended |
| 10.4 | 2025-01-16 | 2025-04-15 | 10.4.5 | ended |
| 10.3 | 2024-12-16 | 2025-03-15 | 10.3.4 | ended |
| 10.2 | 2024-11-15 | 2025-02-15 | 10.2.3 | ended |
| 10.1 | 2024-10-16 | 2025-01-15 | 10.1.7 | ended |
| 10.0 | 2024-09-16 | 2024-12-15 | 10.0.4 | ended |
| 9.11 LTS | 2024-08-02 | 2025-05-15 | 9.11.18 | ended |
Who is affected
Anyone running an unsupported mattermost release. After end of life a version stops receiving security patches, which typically becomes an audit or compliance finding before it becomes an outage. Upgrading to a supported release is the migration path; the table above shows which releases still qualify.
Source
These dates are maintained by endoflife.date/mattermost, an open community dataset that cites vendor announcements. Verify against the vendor before making a compliance decision.
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