v11.11 Upgrade Notes - #9150
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Update docs for the Mattermost Server v11.11 feature release (September 16, 2026): - Add the v11.11 row to the server releases table (released 2026-09-16, support ends 2026-12-15) - Bump the "Latest release" download command in the RHEL and tar deployment guides to 11.11.0 - Add v11.11 to the Desktop app v6.3 server compatibility list - Add v11.11 to the release policy Gantt chart timeline (v11.8 support ends 2026-09-15, so mark it complete and add v12.0) - Add the v11.11.0 open source components (NOTICE.txt) link Co-authored-by: Amy Blais <29708087+amyblais@users.noreply.github.com>
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Newest code from mattermost has been published to preview environment for Git SHA b7e9209 |
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Pull request overview
Updates the Mattermost documentation set to reflect the upcoming v11.11 server release and related lifecycle/support messaging (including ESR status), along with corresponding desktop app and upgrade/deployment references.
Changes:
- Add v11.11 to the server releases table and update deployment install commands to download v11.11.0 tarballs.
- Update release policy timeline (including adding v12.0) and adjust ESR lifecycle messaging.
- Refresh desktop app release references (v6.2.3) and changelog content.
Reviewed changes
Copilot reviewed 11 out of 11 changed files in this pull request and generated 6 comments.
Show a summary per file
| File | Description |
|---|---|
| source/product-overview/release-policy.md | Updates the lifecycle timeline (incl. v12.0) and ESR guidance text. |
| source/product-overview/mattermost-server-releases.md | Adds v11.11 release row with download/SBOM links and dates. |
| source/product-overview/mattermost-desktop-releases.md | Updates desktop release metadata (v6.2.3) and compatibility list (incl. v11.11). |
| source/product-overview/desktop-app-changelog.md | Adds v6.2.3 entry and updates compatibility note and download link. |
| source/product-overview/common-esr-support.md | Updates ESR EOL messaging for v10.11 and upgrade guidance. |
| source/product-overview/common-esr-support-upgrade.md | Updates ESR EOL messaging for v10.11 in the upgrade-focused snippet. |
| source/product-overview/common-esr-support-rst.rst | Updates ESR EOL messaging for v10.11 in the RST snippet. |
| source/deployment-guide/server/linux/deploy-tar.rst | Updates the tarball download command to v11.11.0. |
| source/deployment-guide/server/linux/deploy-rhel.rst | Updates the tarball download command to v11.11.0. |
| source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst | Updates upgrade guidance note related to v10.11 ESR end-of-life. |
| source/administration-guide/upgrade/open-source-components.rst | Adds v11.11.0 NOTICE link for open source components. |
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📝 WalkthroughWalkthroughThe documentation adds Mattermost v11.11 release metadata, updates Linux download commands, adds the Enterprise Edition component reference, extends the support timeline, and records Desktop v6.3 compatibility. ChangesMattermost v11.11 release documentation
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: 🟡 Moderate · up to The documentation currently marks v11.8 complete before its support period ends and advertises v11.11 and related commands before the September 16, 2026 release date, which could mislead administrators or direct them to an unavailable release. Correct the release status and publication timing, and verify the changelog reference before merging. Possibly related PRs
Suggested labels: 🚥 Pre-merge checks | ✅ 3 | ❌ 2❌ Failed checks (1 warning, 1 inconclusive)
✅ Passed checks (3 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Actionable comments posted: 2
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Inline comments:
In `@source/product-overview/mattermost-server-releases.md`:
- Line 22: Keep v11.10 as the latest release until September 16, 2026: update
source/product-overview/mattermost-server-releases.md lines 22-22 to restore
v11.10, and update the Latest release commands in
source/deployment-guide/server/linux/deploy-rhel.rst line 47 and
source/deployment-guide/server/linux/deploy-tar.rst line 48 to reference
v11.10.0.
In `@source/product-overview/release-policy.md`:
- Line 61: Update the v11.8 release entry from done to active while preserving
its existing dates, including the September 15, 2026 end date.
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📒 Files selected for processing (6)
source/administration-guide/upgrade/open-source-components.rstsource/deployment-guide/server/linux/deploy-rhel.rstsource/deployment-guide/server/linux/deploy-tar.rstsource/product-overview/mattermost-desktop-releases.mdsource/product-overview/mattermost-server-releases.mdsource/product-overview/release-policy.md
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Newest code from mattermost has been published to preview environment for Git SHA 951ed98 |
amyblais
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2: Editor Review
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Newest code from mattermost has been published to preview environment for Git SHA cbb2212 |
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@coderabbitai approve |
✅ Action performedComments resolved and changes approved. |
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Newest code from mattermost has been published to preview environment for Git SHA 78bb5ca |
amyblais
added
3: Reviews Complete
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Newest code from mattermost has been published to preview environment for Git SHA ad73e89 |
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Newest code from mattermost has been published to preview environment for Git SHA e3d53b4 |
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Newest code from mattermost has been published to preview environment for Git SHA f08705d |
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Resolves #9149
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