mattermost · amyblais · Jun 17, 2025 · Jun 17, 2025 · Jun 17, 2025 · Jun 17, 2025
diff --git a/source/about/mattermost-server-releases.md b/source/about/mattermost-server-releases.md
@@ -18,7 +18,7 @@ Mattermost releases a new server version on the 16th of each month in [binary fo
 
 | **Release** | **Released on** | **Support ends** |
 |:---|:---|:---|
-| v10.9 [Download](https://releases.mattermost.com/10.9.0/mattermost-10.9.0-linux-amd64.tar.gz) \| {ref}`Changelog <release-v10.9-feature-release>` \| [SBOM download](https://github.com/mattermost/mattermost/releases/download/v10.9.0/sbom-mattermost-v10.9.0.json) | 2025-06-16 | 2025-09-15 |
+| v10.9 [Download](https://releases.mattermost.com/10.9.1/mattermost-10.9.1-linux-amd64.tar.gz) \| {ref}`Changelog <release-v10.9-feature-release>` \| [SBOM download](https://github.com/mattermost/mattermost/releases/download/v10.9.1/sbom-mattermost-v10.9.1.json) | 2025-06-16 | 2025-09-15 |
 | v10.8 [Download](https://releases.mattermost.com/10.8.1/mattermost-10.8.1-linux-amd64.tar.gz) \| {ref}`Changelog <release-v10.8-feature-release>` \| [SBOM download](https://github.com/mattermost/mattermost/releases/download/v10.8.1/sbom-mattermost-v10.8.1.json) | 2025-05-16 | 2025-08-15 |
 | v10.7 [Download](https://releases.mattermost.com/10.7.3/mattermost-10.7.3-linux-amd64.tar.gz) \| {ref}`Changelog <release-v10.7-feature-release>` \| [SBOM download](https://github.com/mattermost/mattermost/releases/download/v10.7.3/sbom-mattermost-v10.7.3.json) | 2025-04-16 | 2025-07-15 |
 | v10.6 [Download](https://releases.mattermost.com/10.6.6/mattermost-10.6.6-linux-amd64.tar.gz) \| {ref}`Changelog <release-v10.6-feature-release>` \| [SBOM download](https://github.com/mattermost/mattermost/releases/download/v10.6.6/sbom-mattermost-v10.6.6.json) | 2025-03-16 | 2025-06-15 |

diff --git a/source/about/mattermost-v10-changelog.md b/source/about/mattermost-v10-changelog.md
@@ -6,8 +6,11 @@
 (release-v10.9-feature-release)=
 ## Release v10.9 - [Feature Release](https://docs.mattermost.com/about/release-policy.html#release-types)
 
-- **10.9.1, release day TBD**
-  - Fixing an issue where Direct/Group Messages are sometimes missing on initial load [MM-64481](https://mattermost.atlassian.net/browse/MM-64481).
+- **10.9.1, released 2025-06-17**
+  - Mattermost v10.9.1 contains a medium severity level security fix. [Upgrading](https://docs.mattermost.com/upgrade/upgrading-mattermost-server.html) to this release as soon as possible is highly recommended. Details will be posted on our [security updates page](https://mattermost.com/security-updates/) 30 days after release as per the [Mattermost Responsible Disclosure Policy](https://mattermost.com/security-vulnerability-report/).
+  - Fixed an issue where Direct/Group Messages were missing on initial load [MM-64481](https://mattermost.atlassian.net/browse/MM-64481).
+  - Pre-packaged Boards plugin version [v9.1.3](https://github.com/mattermost/mattermost-plugin-boards/releases/tag/v9.1.3).
+  - Mattermost v10.9.1 contains no database or functional changes.
 - **10.9.0, released 2025-06-16**
   - Original 10.9.0 release.
 

diff --git a/source/about/version-archive.rst b/source/about/version-archive.rst
@@ -14,10 +14,10 @@ If you want to check that the version of Mattermost you are installing is the of
 
 .. tab:: Mattermost Enterprise
 
-  Mattermost Enterprise Edition v10.9.0 - `View Changelog <https://docs.mattermost.com/about/mattermost-v10-changelog.html#release-v10-9-feature-release>`__ - `Download <https://releases.mattermost.com/10.9.0/mattermost-10.9.0-linux-amd64.tar.gz?src=arc>`__
-    - ``https://releases.mattermost.com/10.9.0/mattermost-10.9.0-linux-amd64.tar.gz``
-    - SHA-256 Checksum: ``63d31e67a07047498a548ee421bbb68b1bd40e749a863a41475e7d79c2c975b3``
-    - GPG Signature: https://releases.mattermost.com/10.9.0/mattermost-10.9.0-linux-amd64.tar.gz.sig
+  Mattermost Enterprise Edition v10.9.1 - `View Changelog <https://docs.mattermost.com/about/mattermost-v10-changelog.html#release-v10-9-feature-release>`__ - `Download <https://releases.mattermost.com/10.9.1/mattermost-10.9.1-linux-amd64.tar.gz?src=arc>`__
+    - ``https://releases.mattermost.com/10.9.1/mattermost-10.9.1-linux-amd64.tar.gz``
+    - SHA-256 Checksum: ``236fe78ce69e0ce73ba33586c1bb869f1c6b1231bc1afa745d4eae078063f090``
+    - GPG Signature: https://releases.mattermost.com/10.9.1/mattermost-10.9.1-linux-amd64.tar.gz.sig
   Mattermost Enterprise Edition v10.8.1 - `View Changelog <https://docs.mattermost.com/about/mattermost-v10-changelog.html#release-v10-8-feature-release>`__ - `Download <https://releases.mattermost.com/10.8.1/mattermost-10.8.1-linux-amd64.tar.gz?src=arc>`__
     - ``https://releases.mattermost.com/10.8.1/mattermost-10.8.1-linux-amd64.tar.gz``
     - SHA-256 Checksum: ``f132f0c815f4db9ffbd39207885c5a601117922eb9a08f5a287fec65c40df426``
@@ -422,11 +422,11 @@ If you want to check that the version of Mattermost you are installing is the of
 
   We generally recommend installing Enterprise Edition, even if you don't currently need a license. This provides the flexibility to seamlessly unlock Enterprise features should you need them. However, if you only want to install software with a fully open source code base, then Team Edition is the best choice for you.
 
-  Mattermost Team Edition v10.9.0 - `View Changelog <https://docs.mattermost.com/about/mattermost-v10-changelog.html#release-v10-9-feature-release>`__ - `Download <https://releases.mattermost.com/10.9.0/mattermost-team-10.9.0-linux-amd64.tar.gz?src=arc>`__
-    - ``https://releases.mattermost.com/10.9.0/mattermost-team-10.9.0-linux-amd64.tar.gz``
-    - SHA-256 Checksum: ``2fd9798a5737ceedc4b4ae3e34143f341155c7f88fec69fa1149a9d05223bb18``
-    - GPG Signature: https://releases.mattermost.com/10.9.0/mattermost-team-10.9.0-linux-amd64.tar.gz.sig
-    - SBOM Download Link: https://github.com/mattermost/mattermost/releases/download/v10.9.0/sbom-mattermost-v10.9.0.json
+  Mattermost Team Edition v10.9.1 - `View Changelog <https://docs.mattermost.com/about/mattermost-v10-changelog.html#release-v10-9-feature-release>`__ - `Download <https://releases.mattermost.com/10.9.1/mattermost-team-10.9.1-linux-amd64.tar.gz?src=arc>`__
+    - ``https://releases.mattermost.com/10.9.1/mattermost-team-10.9.1-linux-amd64.tar.gz``
+    - SHA-256 Checksum: ``9c45d2406a77ea805ac2aa70b82798f09fa3bdedef450f275adf839408239240``
+    - GPG Signature: https://releases.mattermost.com/10.9.1/mattermost-team-10.9.1-linux-amd64.tar.gz.sig
+    - SBOM Download Link: https://github.com/mattermost/mattermost/releases/download/v10.9.1/sbom-mattermost-v10.9.1.json
   Mattermost Team Edition v10.8.1 - `View Changelog <https://docs.mattermost.com/about/mattermost-v10-changelog.html#release-v10-8-feature-release>`__ - `Download <https://releases.mattermost.com/10.8.1/mattermost-team-10.8.1-linux-amd64.tar.gz?src=arc>`__
     - ``https://releases.mattermost.com/10.8.1/mattermost-team-10.8.1-linux-amd64.tar.gz``
     - SHA-256 Checksum: ``5643cb6a08ea130b16c2623653b9fe039fbc56df2096008ab46db5021f66453a``

diff --git a/source/deploy/server/linux/deploy-rhel.rst b/source/deploy/server/linux/deploy-rhel.rst
@@ -39,7 +39,7 @@ In a terminal window, ssh onto the system that will host the Mattermost Server.
 
   .. code-block:: sh
 
-    wget https://releases.mattermost.com/10.9.0/mattermost-10.9.0-linux-amd64.tar.gz
+    wget https://releases.mattermost.com/10.9.1/mattermost-10.9.1-linux-amd64.tar.gz
 
 .. tab:: Current ESR
 

diff --git a/source/deploy/server/linux/deploy-tar.rst b/source/deploy/server/linux/deploy-tar.rst
@@ -38,7 +38,7 @@ In a terminal window, ssh onto the system that will host the Mattermost Server.
 
   .. code-block:: sh
 
-    wget https://releases.mattermost.com/10.9.0/mattermost-10.9.0-linux-amd64.tar.gz
+    wget https://releases.mattermost.com/10.9.1/mattermost-10.9.1-linux-amd64.tar.gz
 
 .. tab:: Current ESR
 

diff --git a/source/deploy/software-hardware-requirements.rst b/source/deploy/software-hardware-requirements.rst
@@ -41,10 +41,10 @@ PC web
 .. csv-table::
     :header: "Browser", "Self-Hosted Technical Requirement", "Cloud Technical Requirement"
 
-    "Chrome", "v132+", "v132+"
-    "Firefox", "v119+", "v119+"
+    "Chrome", "v134+", "v134+"
+    "Firefox", "v128+", "v128+"
     "Safari", "v17.4+", "v17.4+"
-    "Edge", "v132+", "v132+"
+    "Edge", "v134+", "v134+"
 
 `*` Internet Explorer (IE11) is no longer supported. We recommend using the `Mattermost desktop app <https://mattermost.com/apps/>`_ or another supported browser. See `this forum post <https://forum.mattermost.com/t/mattermost-is-dropping-support-for-internet-explorer-ie11-in-v5-16/7575>`__ to learn more.
 
@@ -68,8 +68,8 @@ Mobile web
 .. csv-table::
     :header: "Browser", "Technical Requirement"
 
-    "iOS", "iOS 15.1+ with Safari 17.4+ or Chrome 132+"
-    "Android", "Android 7+ with Chrome 132+"
+    "iOS", "iOS 15.1+ with Safari 17.4+ or Chrome 134+"
+    "Android", "Android 7+ with Chrome 134+"
 
 Email client
 ^^^^^^^^^^^^