v11.10 upgrade notes by amyblais · Pull Request #9102 · mattermost/docs

amyblais · 2026-07-17T11:59:16Z

Resolves #9101

Add the v11.10 (2026-08-14) feature release across server releases, deployment guides, desktop compatibility, release policy timeline, and open source components. Co-authored-by: Amy Blais <29708087+amyblais@users.noreply.github.com> Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

github-actions · 2026-07-17T12:02:48Z

Newest code from mattermost has been published to preview environment for Git SHA 2fb1344

Copilot

Pull request overview

Updates Mattermost documentation to reflect the v11.10 feature release, primarily by adding v11.10 to release listings and updating “latest release” download URLs and timelines.

Changes:

Add v11.10 to the Server Releases table (including download + SBOM links) and adjust the release date to 2026-08-14.
Update “latest release” tarball download commands in the Linux deployment guides to 11.10.0.
Update release policy timeline and desktop/server compatibility list to include v11.10.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
source/product-overview/release-policy.md	Updates the v11.10 timeline date in the release-policy mermaid gantt chart.
source/product-overview/mattermost-server-releases.md	Adds v11.10 to the server release table (download/SBOM links, dates).
source/product-overview/mattermost-desktop-releases.md	Updates the desktop compatibility matrix to include server v11.10 for Desktop v6.2.
source/deployment-guide/server/linux/deploy-tar.rst	Updates “Latest release” wget URL to 11.10.0 tarball.
source/deployment-guide/server/linux/deploy-rhel.rst	Updates “Latest release” wget URL to 11.10.0 tarball.
source/administration-guide/upgrade/open-source-components.rst	Adds v11.10.0 entry linking to NOTICE/open source components for the 11.10 server release branch.

coderabbitai · 2026-07-17T12:09:51Z

📝 Walkthrough

Walkthrough

Documentation now records Mattermost v11.10 release metadata, deployment commands, upgrade notes, PostgreSQL support policy, compatibility requirements, open-source notices, lifecycle guidance, and UI/ADA changelog entries.

Changes

Mattermost v11.10 documentation

Layer / File(s)	Summary
Release metadata and support policy `source/product-overview/mattermost-server-releases.md`, `source/product-overview/release-policy.md`, `source/deployment-guide/software-hardware-requirements.rst`	Adds v11.10 release details, updates ESR timelines, and revises PostgreSQL support policy entries.
Linux deployment downloads `source/deployment-guide/server/linux/deploy-rhel.rst`, `source/deployment-guide/server/linux/deploy-tar.rst`	Updates Linux download commands to Mattermost 11.10.0.
Upgrade, compatibility, and component references `source/administration-guide/upgrade/important-upgrade-notes.rst`, `source/administration-guide/upgrade/open-source-components.rst`, `source/product-overview/mattermost-desktop-releases.md`, `source/deployment-guide/software-hardware-requirements.rst`	Documents database changes, updates desktop and browser compatibility, and adds component NOTICE links.
Lifecycle and migration guidance `source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst`, `source/product-overview/common-esr-support*`, `source/product-overview/common-esr-support-rst.rst`	Updates v10.11 end-of-life wording and corrects escaped Unicode migration examples.
UI and accessibility changelog `source/product-overview/ui-ada-changelog.rst`	Adds v11.10 UI and accessibility changelog entries.

Estimated code review effort: 2 (Simple) | ~15 minutes

Possibly related PRs

mattermost/docs#9110: Updates the desktop/server compatibility documentation for v11.10.
mattermost/docs#9112: Modifies the release-policy ESR timeline and legend.

Suggested labels: Guidance

🚥 Pre-merge checks | ✅ 3 | ❌ 2

❌ Failed checks (2 warnings)

Check name	Status	Explanation	Resolution
Linked Issues check	⚠️ Warning	Most requested v11.10 docs were updated, but deprecated-features.rst from `#9101` is missing.	Add the deprecated-features.rst v11.10 documentation update requested in `#9101`, then recheck the release-note coverage.
Out of Scope Changes check	⚠️ Warning	Changes to prepare-to-upgrade and common ESR support pages are not listed in `#9101` and appear outside the requested file set.	Remove or justify the v10.11 ESR support and prepare-to-upgrade edits, or add them to the issue scope if they are intended.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title is concise and accurately names the main change: v11.10 upgrade notes.
Description check	✅ Passed	The description references the linked issue and is related to the documentation update.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

🧪 Generate unit tests (beta)

Create PR with unit tests
Commit unit tests in branch claude/issue-9101-20260717-1151

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

_{Comment @coderabbitai help to get the list of available commands.}

coderabbitai

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@source/product-overview/mattermost-server-releases.md`:
- Line 22: Update the release-date wording near the v11.10 entry to state that
releases occur typically on the 16th, or add a clear note identifying v11.10’s
August 14, 2026 release as an exception; preserve the existing release table
data.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

Push a commit to this branch (recommended)
Create a new PR with the fixes

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 7fbd5261-0635-408a-b4f1-dcdb46b3b9db

📥 Commits

Reviewing files that changed from the base of the PR and between 6b23cdf and 2fb1344.

📒 Files selected for processing (6)

source/administration-guide/upgrade/open-source-components.rst
source/deployment-guide/server/linux/deploy-rhel.rst
source/deployment-guide/server/linux/deploy-tar.rst
source/product-overview/mattermost-desktop-releases.md
source/product-overview/mattermost-server-releases.md
source/product-overview/release-policy.md

github-actions · 2026-07-17T12:15:25Z

Newest code from mattermost has been published to preview environment for Git SHA a11c4e7

github-actions · 2026-07-22T09:14:55Z

Newest code from mattermost has been published to preview environment for Git SHA 3500705

github-actions · 2026-07-22T09:16:34Z

Newest code from mattermost has been published to preview environment for Git SHA a260f2c

github-actions · 2026-07-22T09:18:29Z

Newest code from mattermost has been published to preview environment for Git SHA dba1d4b

github-actions · 2026-07-22T09:22:24Z

Newest code from mattermost has been published to preview environment for Git SHA 30e9ac2

github-actions · 2026-07-22T09:24:29Z

Newest code from mattermost has been published to preview environment for Git SHA d43b153

github-actions · 2026-07-22T09:28:09Z

Newest code from mattermost has been published to preview environment for Git SHA ec37e58

github-actions · 2026-07-22T09:29:30Z

Newest code from mattermost has been published to preview environment for Git SHA eaef379

coderabbitai · 2026-07-22T09:30:53Z

✅ Action performed

Full review finished.

coderabbitai

Actionable comments posted: 3

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@source/administration-guide/upgrade/important-upgrade-notes.rst`:
- Around line 32-45: The upgrade note’s lock-timing statement is too absolute.
Update the description around the useraccesstokens migration and its
lastnotifiedat column to state that PostgreSQL performs a catalog-only operation
without a table rewrite, and that execution is quick after acquiring the
required ACCESS EXCLUSIVE lock, which may wait behind conflicting transactions.

In `@source/deployment-guide/software-hardware-requirements.rst`:
- Around line 140-142: Update the Release Date entries for v10.11 ESR and v11.7
ESR in the software and hardware requirements table to the canonical metadata
dates: 2025-08-15 and 2026-05-15, respectively.

In `@source/product-overview/ui-ada-changelog.rst`:
- Line 38: Update the changelog entry’s UI labels by applying bold formatting to
“Regenerate” and “Account Settings > Security,” matching the formatting style
used by surrounding entries while preserving the existing wording.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

Push a commit to this branch (recommended)
Create a new PR with the fixes

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 6bf870a0-0107-4814-82ba-f0a8d5715929

📥 Commits

Reviewing files that changed from the base of the PR and between 3b2e99a and eaef379.

📒 Files selected for processing (9)

source/administration-guide/upgrade/important-upgrade-notes.rst
source/administration-guide/upgrade/open-source-components.rst
source/deployment-guide/server/linux/deploy-rhel.rst
source/deployment-guide/server/linux/deploy-tar.rst
source/deployment-guide/software-hardware-requirements.rst
source/product-overview/mattermost-desktop-releases.md
source/product-overview/mattermost-server-releases.md
source/product-overview/release-policy.md
source/product-overview/ui-ada-changelog.rst

github-actions · 2026-07-22T12:01:43Z

Newest code from mattermost has been published to preview environment for Git SHA ac4a430

github-actions · 2026-07-22T12:06:42Z

Newest code from mattermost has been published to preview environment for Git SHA 7cb053b

github-actions · 2026-07-22T12:08:49Z

Newest code from mattermost has been published to preview environment for Git SHA b7a7ed8

v10 has reached end of support, so its changelog content is merged into unsupported-legacy-releases.md alongside v9/v8/v7, following the existing pattern for retired major versions. Updates all cross-references (version archive, release policy, redirects, kubernetes HA upgrade doc, changelog filter script, and the changelog-automation file list) to point at the new location, and removes the standalone v10 changelog page and its toctree/index entries.

github-actions · 2026-07-22T12:19:08Z

Newest code from mattermost has been published to preview environment for Git SHA 5049eb4

This reverts commit 5049eb4.

github-actions · 2026-07-22T12:23:13Z

Newest code from mattermost has been published to preview environment for Git SHA 73ed982

amyblais · 2026-07-22T12:24:07Z

@coderabbitai full review

coderabbitai · 2026-07-22T12:24:13Z

✅ Action performed

Full review finished.

github-actions · 2026-07-22T12:25:53Z

Newest code from mattermost has been published to preview environment for Git SHA eddec67

coderabbitai

Actionable comments posted: 5

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst`:
- Line 61: Update the shared v10.11 EOL notices to use future tense until August
15, 2026, while preserving the existing upgrade guidance:
source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst:61,
source/product-overview/common-esr-support-rst.rst:6,
source/product-overview/common-esr-support-upgrade.md:3, and
source/product-overview/common-esr-support.md:3.

In `@source/deployment-guide/software-hardware-requirements.rst`:
- Around line 144-145: Resolve the v12.0 entry in the release-support table by
either removing the row or explicitly marking it as an intentional ESR-policy
exception and documenting why its October 16, 2026 PostgreSQL 15.x upgrade
precedes the next ESR and the PostgreSQL 14 EOL. Keep the table’s stated ESR
policy and date ordering consistent.

In `@source/product-overview/release-policy.md`:
- Line 70: Update the v10.11 and Desktop App v5.13 entry in the release policy
to use the date-neutral label “Supported until August 15, 2026” instead of
stating that support has ended.

In `@source/product-overview/ui-ada-changelog.rst`:
- Line 16: Update the changelog entry to define “WYSIWYG” on first use as “what
you see is what you get” and describe Markdown round-trip behavior in plain
language, clarifying that formatting is preserved when converting between the
editor and Markdown.
- Line 40: Update the changelog entry describing resizability to use the
established LHS/RHS terminology consistently, replacing
“Left-Hand-Side/Right-Hand-Side” with the nearby project wording while
preserving the rest of the entry.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

Push a commit to this branch (recommended)
Create a new PR with the fixes

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 689bb8ea-b7b2-486c-84d5-8c02af96f0c6

📥 Commits

Reviewing files that changed from the base of the PR and between 3b2e99a and eddec67.

📒 Files selected for processing (13)

source/administration-guide/upgrade/important-upgrade-notes.rst
source/administration-guide/upgrade/open-source-components.rst
source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst
source/deployment-guide/server/linux/deploy-rhel.rst
source/deployment-guide/server/linux/deploy-tar.rst
source/deployment-guide/software-hardware-requirements.rst
source/product-overview/common-esr-support-rst.rst
source/product-overview/common-esr-support-upgrade.md
source/product-overview/common-esr-support.md
source/product-overview/mattermost-desktop-releases.md
source/product-overview/mattermost-server-releases.md
source/product-overview/release-policy.md
source/product-overview/ui-ada-changelog.rst

github-actions · 2026-07-22T12:34:09Z

Newest code from mattermost has been published to preview environment for Git SHA 5fb33c8

github-actions · 2026-07-22T12:37:31Z

Newest code from mattermost has been published to preview environment for Git SHA cb7f874

github-actions · 2026-07-22T12:39:00Z

Newest code from mattermost has been published to preview environment for Git SHA 4af8dee

github-actions · 2026-07-23T07:57:44Z

Newest code from mattermost has been published to preview environment for Git SHA b81ee70

github-actions · 2026-07-23T08:05:50Z

Newest code from mattermost has been published to preview environment for Git SHA a497bb7

amyblais added this to the v11.10.0 milestone Jul 17, 2026

Copilot AI review requested due to automatic review settings July 17, 2026 11:59

amyblais added the Work In Progress Not yet ready for review label Jul 17, 2026

Copilot started reviewing on behalf of amyblais July 17, 2026 11:59 View session

Copilot AI reviewed Jul 17, 2026

View reviewed changes

Comment thread source/product-overview/mattermost-server-releases.md

Comment thread source/product-overview/mattermost-desktop-releases.md Outdated

Comment thread source/product-overview/mattermost-server-releases.md

Comment thread source/product-overview/release-policy.md

coderabbitai Bot requested changes Jul 17, 2026

View reviewed changes

Comment thread source/product-overview/mattermost-server-releases.md

Update important-upgrade-notes.rst

a11c4e7

amyblais changed the base branch from master to v11.10-documentation July 22, 2026 08:58

amyblais changed the title ~~Update docs for v11.10 feature release~~ v11.10 upgrade notes Jul 22, 2026

amyblais added 3 commits July 22, 2026 12:11

Add v11.10 User Interface entries to UI & ADA changelog

3500705

Update ui-ada-changelog.rst

a260f2c

Update important-upgrade-notes.rst

dba1d4b

amyblais added 2 commits July 22, 2026 12:18

Update open-source-components.rst

30e9ac2

Update mattermost-desktop-releases.md

d43b153

Update software-hardware-requirements.rst

ec37e58

Update release-policy.md

eaef379

coderabbitai Bot approved these changes Jul 22, 2026

View reviewed changes

coderabbitai Bot requested changes Jul 22, 2026

View reviewed changes

Comment thread source/administration-guide/upgrade/important-upgrade-notes.rst

Comment thread source/deployment-guide/software-hardware-requirements.rst Outdated

Comment thread source/product-overview/ui-ada-changelog.rst Outdated

amyblais added 2 commits July 22, 2026 15:02

Fix corrupted null-escape sequences in troubleshooting section

7cb053b

Update release-policy.md

b7a7ed8

claude and others added 2 commits July 22, 2026 12:19

Revert "Move v10 changelog into unsupported legacy releases"

73ed982

This reverts commit 5049eb4.

Update release-policy.md

eddec67

Update release-policy.md

5fb33c8

coderabbitai Bot requested changes Jul 22, 2026

View reviewed changes

Update ui-ada-changelog.rst

cb7f874

Update software-hardware-requirements.rst

4af8dee

coderabbitai Bot approved these changes Jul 22, 2026

View reviewed changes

amyblais added 3 commits July 23, 2026 10:53

Update mattermost-server-releases.md

b81ee70

Update release-policy.md

7601918

Update release-policy.md

627631f

amyblais added 4 commits July 23, 2026 10:57

Update prepare-to-upgrade-mattermost.rst

fa064b1

Update common-esr-support-rst.rst

517fc52

Update common-esr-support-upgrade.md

f381a76

Update common-esr-support.md

a497bb7

Uh oh!

Conversation

amyblais commented Jul 17, 2026

Uh oh!

github-actions Bot commented Jul 17, 2026

Uh oh!

Copilot AI left a comment

Choose a reason for hiding this comment

Pull request overview

Reviewed changes

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Uh oh!

coderabbitai Bot commented Jul 17, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Walkthrough

Changes

❌ Failed checks (2 warnings)

Uh oh!

coderabbitai Bot left a comment

Choose a reason for hiding this comment

Uh oh!

Uh oh!

github-actions Bot commented Jul 17, 2026

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

coderabbitai Bot commented Jul 22, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

coderabbitai Bot left a comment

Choose a reason for hiding this comment

Uh oh!

Uh oh!

Uh oh!

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

amyblais commented Jul 22, 2026

Uh oh!

coderabbitai Bot commented Jul 22, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

coderabbitai Bot left a comment

Choose a reason for hiding this comment

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

github-actions Bot commented Jul 22, 2026

Uh oh!

github-actions Bot commented Jul 22, 2026

coderabbitai Bot commented Jul 17, 2026 •

edited

Loading

coderabbitai Bot commented Jul 22, 2026 •

edited

Loading

coderabbitai Bot commented Jul 22, 2026 •

edited

Loading