As of 2026-10-12: No. Mattermost 11.11 is supported; its end-of-life date is 2026-12-15 (in 64 days). Latest release: 11.11.1 (2026-09-24).
Status of every cycle as of 2026-10-12, newest first: supported, security-only (active support ended), eol or unknown.
| Cycle | Status |
|---|---|
| 11.11 | supported |
| 11.10 | supported |
| 11.9 | supported |
| 11.8 | eol |
| 11.7 | supported |
| 11.6 | eol |
| 11.5 | eol |
| 11.4 | eol |
| 11.3 | eol |
| 11.2 | eol |
| 11.1 | eol |
| 11.0 | eol |
| 10.12 | eol |
| 10.11 | eol |
| 10.10 | eol |
| 10.9 | eol |
| 10.8 | eol |
| 10.7 | eol |
| 10.6 | eol |
| 10.5 | eol |
| 10.4 | eol |
| 10.3 | eol |
| 10.2 | eol |
| 10.1 | eol |
| 10.0 | eol |
| 9.11 | eol |
| 9.10 | eol |
| 9.9 | eol |
| 9.8 | eol |
| 9.7 | eol |
| 9.6 | eol |
| 9.5 | eol |
| 9.4 | eol |
| 9.3 | eol |
| 9.2 | eol |
| 9.1 | eol |
| 9.0 | eol |
| 8.1 | eol |
| 8.0 | eol |
| 7.10 | eol |
| 7.9 | eol |
| 7.8 | eol |
| 7.7 | eol |
| 7.5 | eol |
| 7.4 | eol |
| 7.3 | eol |
| 7.2 | eol |
| 7.1 | eol |
| 7.0 | eol |
| 6.7 | eol |
| 6.6 | eol |
| 6.5 | eol |
| 6.4 | eol |
| 6.3 | eol |
| 6.2 | eol |
| 6.1 | eol |
| 6.0 | eol |
This page shows the status only. The signed API answer has every cycle with its release, support and end-of-life dates, LTS flag and latest version: GET /v1/eol/mattermost ($0.001 per call, paid with x402 in USDC; no account, no API key).
GET /v1/eol/{product}/{cycle}: one cycle, $0.001.POST /v1/eol/check: up to 50 product versions in one call, $0.01.GET /v1/eol/image?image=node:18-alpine3.19: a container image, its runtime and base OS, $0.005.POST /v1/stack/check: up to 50 product versions, 50 packages (purls) checked against OSV.dev and 100 CVEs checked against CISA KEV in one call, $0.012.POST /v1/stack/watch: the same stack check, then only what changed on each re-check with its signed token (an end-of-life date passed or near, a new KEV listing, a new advisory), $0.012.Data from endoflife.date (https://endoflife.date), Copyright 2020 endoflife.date contributors, MIT License.
Snapshot eol-20261011T184823Z-fb3e9d0a, data as of 2026-10-11T18:48:23Z, source last checked 2026-10-11T18:48:23.000Z.
Licences and attribution: /licences. How snapshots are made and verified: /provenance.
Data is provided as is, without warranty of any kind. Payments are final. Every dataset is normalised (modified) from the sources named here, and no source endorses this service.