From 27898f0c25368996ad6b801611df559428438bda Mon Sep 17 00:00:00 2001 From: "claude[bot]" <41898282+claude[bot]@users.noreply.github.com> Date: Tue, 21 Jul 2026 10:09:10 +0000 Subject: [PATCH 01/17] Transition v10.11 / Desktop v5.13 ESR out of supported status - release-policy: change v10.11 Gantt row from :crit to :done, add it to the Legacy Releases table (Support ended 2026-08-15), and update the timeline legend so the now-EOL ESR is listed under grey (not red) bars - Update shared ESR reminder snippets (common-esr-support.md, common-esr-support-upgrade.md, common-esr-support-rst.rst) to name both Server v10.11 and Desktop App v5.13 reaching end of support on August 15, 2026, keeping the reminder consistent across the desktop, server, changelog, and version-archive pages Co-authored-by: Amy Blais <29708087+amyblais@users.noreply.github.com> --- source/product-overview/common-esr-support-rst.rst | 2 +- source/product-overview/common-esr-support-upgrade.md | 2 +- source/product-overview/common-esr-support.md | 2 +- source/product-overview/release-policy.md | 8 +++++--- 4 files changed, 8 insertions(+), 6 deletions(-) diff --git a/source/product-overview/common-esr-support-rst.rst b/source/product-overview/common-esr-support-rst.rst index 48f6286cae3..bf9589e562c 100644 --- a/source/product-overview/common-esr-support-rst.rst +++ b/source/product-overview/common-esr-support-rst.rst @@ -3,4 +3,4 @@ .. important:: - Support for Mattermost Server v10.11 :ref:`Extended Support Release ` is coming to the end of its life cycle on August 15, 2026. Upgrading to :doc:`Mattermost Server v11.7 or later ` is recommended. + Support for the Mattermost Server v10.11 and Desktop App v5.13 :ref:`Extended Support Releases ` reaches the end of its life cycle on August 15, 2026. Upgrading to the :doc:`Mattermost Server v11.7 ` and :doc:`Desktop App v6.2 ` Extended Support Releases, or later, is recommended. diff --git a/source/product-overview/common-esr-support-upgrade.md b/source/product-overview/common-esr-support-upgrade.md index ca29711085c..3268b170be3 100644 --- a/source/product-overview/common-esr-support-upgrade.md +++ b/source/product-overview/common-esr-support-upgrade.md @@ -1,6 +1,6 @@ -- Support for Mattermost Server v10.11 [Extended Support Release](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) is coming to the end of its life cycle on August 15, 2026. Upgrading to Mattermost Server v11.7 or later is recommended. +- Support for the Mattermost Server v10.11 and Desktop App v5.13 [Extended Support Releases](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) reaches the end of its life cycle on August 15, 2026. Upgrading to the Mattermost Server v11.7 and Desktop App v6.2 Extended Support Releases, or later, is recommended. - Upgrading from one Extended Support Release (ESR) to the next ESR (``major`` -> ``major_next``) is fully supported and tested. However, upgrading across multiple ESR versions (``major`` to ``major+2``) is supported, but not tested. If you plan to skip versions, we strongly recommend upgrading only between ESR releases. For example, if you're upgrading from v8.1 ESR, upgrade to the v9.5 ESR or the v9.11 ESR before attempting to upgrade to the [v10.11 ESR](https://docs.mattermost.com/product-overview/mattermost-v10-changelog.html#release-v10-11-extended-support-release) or the [v11.7 ESR](https://docs.mattermost.com/product-overview/mattermost-server-releases.html). - See the [Important Upgrade Notes](https://docs.mattermost.com/upgrade/important-upgrade-notes.html) documentation for details on upgrading to a newer release. - See the [changelog in progress](https://bit.ly/2nK3cVf) for details about the upcoming release. diff --git a/source/product-overview/common-esr-support.md b/source/product-overview/common-esr-support.md index f04561abba2..ceb0a0a13d0 100644 --- a/source/product-overview/common-esr-support.md +++ b/source/product-overview/common-esr-support.md @@ -1,4 +1,4 @@ -- Support for Mattermost Server v10.11 [Extended Support Release](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) is coming to the end of its life cycle on August 15, 2026. Upgrading to [Mattermost Server v11.7](https://docs.mattermost.com/product-overview/mattermost-server-releases.html) or later is recommended. +- Support for the Mattermost Server v10.11 and Desktop App v5.13 [Extended Support Releases](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) reaches the end of its life cycle on August 15, 2026. Upgrading to the [Mattermost Server v11.7](https://docs.mattermost.com/product-overview/mattermost-server-releases.html) and [Desktop App v6.2](https://docs.mattermost.com/product-overview/mattermost-desktop-releases.html) Extended Support Releases, or later, is recommended. - All Mattermost users must accept Mattermost's [Acceptable Use Policy](https://mattermost.com/terms-of-use/#acceptable-use-policy) and [Privacy Policy](https://mattermost.com/privacy-policy/) when creating an account or accessing Mattermost. For customers with a Mattermost subscription, including self-hosted deployments, organizations may replace or override the Acceptable Use Policy in the [Mattermost System Console](https://docs.mattermost.com/administration-guide/configure/site-configuration-settings.html#terms-of-use-link) with their own acceptable use or conduct policies, based on contractual terms with Mattermost, so long as your own terms either incorporate the Acceptable Use Policy or include equivalent terms. If you change the default link to add your own terms for using the service you provide, your new terms must include a link to the default terms so end users are aware of the Mattermost Acceptable Use Policy for Mattermost software. \ No newline at end of file diff --git a/source/product-overview/release-policy.md b/source/product-overview/release-policy.md index e5ea9bb4722..6efab77b52e 100644 --- a/source/product-overview/release-policy.md +++ b/source/product-overview/release-policy.md @@ -49,7 +49,7 @@ gantt section Releases v10.10 :done, 2025-07-16, 2025-10-15 - v10.11 & Desktop App v5.13 Extended Support :crit, 2025-08-16, 2026-08-15 + v10.11 & Desktop App v5.13 Extended Support :done, 2025-08-16, 2026-08-15 v10.12 :done, 2025-09-16, 2025-12-15 v11.0 :done, 2025-10-16, 2026-01-15 v11.1 :done, 2025-11-14, 2026-02-15 @@ -67,8 +67,9 @@ gantt **Timeline Legend:** The chart above shows both release dates and end-of-life dates for each version. ESRs provide longer-term stability for organizations preferring less frequent updates. - 🔵 **Blue bars**: Regular feature releases (monthly releases with standard support lifecycle) +- ⚫ **Grey bars**: Regular feature releases that have reached end-of-life, and Extended Support Releases (ESRs) that have reached end-of-life + - v10.11 & Desktop App v5.13: Support ended August 15, 2026 - 🔴 **Red bars**: Extended Support Releases (ESRs), released every 9 months with 12 months of support - - v10.11 & Desktop App v5.13: Supported until August 15, 2026 - v11.7 & Desktop App v6.2: Supported until May 15, 2027 (esr-notifications)= @@ -84,7 +85,7 @@ For deprecated ESRs, an email announcement is sent 3 months in advance. We also ### Legacy Releases -The following table lists all releases across Mattermost v7.0, v8.0, and v9.0, including ESRs. See the [unsupported legacy releases](https://docs.mattermost.com/product-overview/unsupported-legacy-releases.html) documentation for comprehensive changelog details for these legacy releases. +The following table lists all releases across Mattermost v7.0, v8.0, v9.0, and v10.0, including ESRs. See the [unsupported legacy releases](https://docs.mattermost.com/product-overview/unsupported-legacy-releases.html) documentation for comprehensive changelog details for these legacy releases. ```{Important} - If you're on a legacy Mattermost release prior to v7.1, in order to take advantage of newer Mattermost releases, you must upgrade to [v7.1 ESR](https://docs.mattermost.com/product-overview/unsupported-legacy-releases.html#release-v7-1-extended-support-release) at a minimum. @@ -93,6 +94,7 @@ The following table lists all releases across Mattermost v7.0, v8.0, and v9.0, i | **Release** | **Release Type** | **Support ended** | |:---|:---|:---| +| v10.11 & Desktop App v5.13 | Extended | 2026-08-15 | | v9.11 | Extended | 2025-05-15 | | v9.10 | Feature | 2024-10-15 | | v9.9 | Feature | 2024-09-15 | From 62f1ca70e29eaedd583165aa8e5ef4bdb819f3bf Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Tue, 21 Jul 2026 13:12:04 +0300 Subject: [PATCH 02/17] Revert common-esr-support-rst.rst to master --- source/product-overview/common-esr-support-rst.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/source/product-overview/common-esr-support-rst.rst b/source/product-overview/common-esr-support-rst.rst index bf9589e562c..48f6286cae3 100644 --- a/source/product-overview/common-esr-support-rst.rst +++ b/source/product-overview/common-esr-support-rst.rst @@ -3,4 +3,4 @@ .. important:: - Support for the Mattermost Server v10.11 and Desktop App v5.13 :ref:`Extended Support Releases ` reaches the end of its life cycle on August 15, 2026. Upgrading to the :doc:`Mattermost Server v11.7 ` and :doc:`Desktop App v6.2 ` Extended Support Releases, or later, is recommended. + Support for Mattermost Server v10.11 :ref:`Extended Support Release ` is coming to the end of its life cycle on August 15, 2026. Upgrading to :doc:`Mattermost Server v11.7 or later ` is recommended. From abce0f1b23c60ec747eac5280bc4c046f74a5610 Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Tue, 21 Jul 2026 13:12:12 +0300 Subject: [PATCH 03/17] Revert common-esr-support-upgrade.md to master --- source/product-overview/common-esr-support-upgrade.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/source/product-overview/common-esr-support-upgrade.md b/source/product-overview/common-esr-support-upgrade.md index 3268b170be3..ca29711085c 100644 --- a/source/product-overview/common-esr-support-upgrade.md +++ b/source/product-overview/common-esr-support-upgrade.md @@ -1,6 +1,6 @@ -- Support for the Mattermost Server v10.11 and Desktop App v5.13 [Extended Support Releases](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) reaches the end of its life cycle on August 15, 2026. Upgrading to the Mattermost Server v11.7 and Desktop App v6.2 Extended Support Releases, or later, is recommended. +- Support for Mattermost Server v10.11 [Extended Support Release](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) is coming to the end of its life cycle on August 15, 2026. Upgrading to Mattermost Server v11.7 or later is recommended. - Upgrading from one Extended Support Release (ESR) to the next ESR (``major`` -> ``major_next``) is fully supported and tested. However, upgrading across multiple ESR versions (``major`` to ``major+2``) is supported, but not tested. If you plan to skip versions, we strongly recommend upgrading only between ESR releases. For example, if you're upgrading from v8.1 ESR, upgrade to the v9.5 ESR or the v9.11 ESR before attempting to upgrade to the [v10.11 ESR](https://docs.mattermost.com/product-overview/mattermost-v10-changelog.html#release-v10-11-extended-support-release) or the [v11.7 ESR](https://docs.mattermost.com/product-overview/mattermost-server-releases.html). - See the [Important Upgrade Notes](https://docs.mattermost.com/upgrade/important-upgrade-notes.html) documentation for details on upgrading to a newer release. - See the [changelog in progress](https://bit.ly/2nK3cVf) for details about the upcoming release. From 2cf36508563d014f05e3358cc059db78ae6c9395 Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Tue, 21 Jul 2026 13:12:16 +0300 Subject: [PATCH 04/17] Revert common-esr-support.md to master --- source/product-overview/common-esr-support.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/source/product-overview/common-esr-support.md b/source/product-overview/common-esr-support.md index ceb0a0a13d0..f04561abba2 100644 --- a/source/product-overview/common-esr-support.md +++ b/source/product-overview/common-esr-support.md @@ -1,4 +1,4 @@ -- Support for the Mattermost Server v10.11 and Desktop App v5.13 [Extended Support Releases](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) reaches the end of its life cycle on August 15, 2026. Upgrading to the [Mattermost Server v11.7](https://docs.mattermost.com/product-overview/mattermost-server-releases.html) and [Desktop App v6.2](https://docs.mattermost.com/product-overview/mattermost-desktop-releases.html) Extended Support Releases, or later, is recommended. +- Support for Mattermost Server v10.11 [Extended Support Release](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) is coming to the end of its life cycle on August 15, 2026. Upgrading to [Mattermost Server v11.7](https://docs.mattermost.com/product-overview/mattermost-server-releases.html) or later is recommended. - All Mattermost users must accept Mattermost's [Acceptable Use Policy](https://mattermost.com/terms-of-use/#acceptable-use-policy) and [Privacy Policy](https://mattermost.com/privacy-policy/) when creating an account or accessing Mattermost. For customers with a Mattermost subscription, including self-hosted deployments, organizations may replace or override the Acceptable Use Policy in the [Mattermost System Console](https://docs.mattermost.com/administration-guide/configure/site-configuration-settings.html#terms-of-use-link) with their own acceptable use or conduct policies, based on contractual terms with Mattermost, so long as your own terms either incorporate the Acceptable Use Policy or include equivalent terms. If you change the default link to add your own terms for using the service you provide, your new terms must include a link to the default terms so end users are aware of the Mattermost Acceptable Use Policy for Mattermost software. \ No newline at end of file From b441b5fbc9d0b8dd78d1101f09eb15fa10e68fd5 Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Tue, 21 Jul 2026 13:15:33 +0300 Subject: [PATCH 05/17] Update release-policy.md --- source/product-overview/release-policy.md | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/source/product-overview/release-policy.md b/source/product-overview/release-policy.md index 6efab77b52e..8be40c912f0 100644 --- a/source/product-overview/release-policy.md +++ b/source/product-overview/release-policy.md @@ -25,9 +25,9 @@ See the full list of all Mattermost Server and desktop app releases and life cyc Mattermost Extended Support Releases (ESRs) are a strategic choice for organizations looking for stability and reduced frequency of updates. Using ESRs can minimize disruptions associated with frequent upgrades, making them an attractive option for environments where stability is paramount. -Starting with the August 2025 Mattermost server and desktop app releases (server v10.11 and desktop app v5.13), Mattermost has adjusted the ESR life cycle as follows: - - **Extended Cadence**: ESRs are released every 9 months. - - **Prolonged Support**: ESRs are supported for 12 months. +The ESR lifecycle for Mattermost server and desktop app Extended Support Releases is as follows: + - **Cadence**: ESRs are released every 9 months. + - **Support**: ESRs are supported for 12 months. We strongly recommend planning ahead for upgrades before the end of an ESR's life cycle to ensure continuity in receiving security updates. @@ -48,9 +48,6 @@ gantt axisFormat %b %y section Releases - v10.10 :done, 2025-07-16, 2025-10-15 - v10.11 & Desktop App v5.13 Extended Support :done, 2025-08-16, 2026-08-15 - v10.12 :done, 2025-09-16, 2025-12-15 v11.0 :done, 2025-10-16, 2026-01-15 v11.1 :done, 2025-11-14, 2026-02-15 v11.2 :done, 2025-12-16, 2026-03-15 @@ -67,10 +64,9 @@ gantt **Timeline Legend:** The chart above shows both release dates and end-of-life dates for each version. ESRs provide longer-term stability for organizations preferring less frequent updates. - 🔵 **Blue bars**: Regular feature releases (monthly releases with standard support lifecycle) -- ⚫ **Grey bars**: Regular feature releases that have reached end-of-life, and Extended Support Releases (ESRs) that have reached end-of-life - - v10.11 & Desktop App v5.13: Support ended August 15, 2026 - 🔴 **Red bars**: Extended Support Releases (ESRs), released every 9 months with 12 months of support - v11.7 & Desktop App v6.2: Supported until May 15, 2027 + - v10.11 & Desktop App v5.13: Support ended August 15, 2026 (esr-notifications)= ### ESR Notifications @@ -94,7 +90,6 @@ The following table lists all releases across Mattermost v7.0, v8.0, v9.0, and v | **Release** | **Release Type** | **Support ended** | |:---|:---|:---| -| v10.11 & Desktop App v5.13 | Extended | 2026-08-15 | | v9.11 | Extended | 2025-05-15 | | v9.10 | Feature | 2024-10-15 | | v9.9 | Feature | 2024-09-15 | From 02179c15a41d7ad65d13c3872ffa885b0030f2fb Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Wed, 22 Jul 2026 11:08:55 +0300 Subject: [PATCH 06/17] Update ESR support snippet to reflect v10.11 ESR has reached end of life --- source/product-overview/common-esr-support-rst.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/source/product-overview/common-esr-support-rst.rst b/source/product-overview/common-esr-support-rst.rst index 48f6286cae3..9be83d71315 100644 --- a/source/product-overview/common-esr-support-rst.rst +++ b/source/product-overview/common-esr-support-rst.rst @@ -3,4 +3,4 @@ .. important:: - Support for Mattermost Server v10.11 :ref:`Extended Support Release ` is coming to the end of its life cycle on August 15, 2026. Upgrading to :doc:`Mattermost Server v11.7 or later ` is recommended. + Support for Mattermost Server v10.11 :ref:`Extended Support Release ` reached the end of its life cycle on August 15, 2026. Upgrading to :doc:`Mattermost Server v11.7 or later ` is recommended. From 4415b803b2ae1b2d57ef524f029eeafae3b4fd4e Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Wed, 22 Jul 2026 11:09:04 +0300 Subject: [PATCH 07/17] Update ESR support snippet to reflect v10.11 ESR has reached end of life --- source/product-overview/common-esr-support-upgrade.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/source/product-overview/common-esr-support-upgrade.md b/source/product-overview/common-esr-support-upgrade.md index ca29711085c..c0ca2331fcd 100644 --- a/source/product-overview/common-esr-support-upgrade.md +++ b/source/product-overview/common-esr-support-upgrade.md @@ -1,6 +1,6 @@ -- Support for Mattermost Server v10.11 [Extended Support Release](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) is coming to the end of its life cycle on August 15, 2026. Upgrading to Mattermost Server v11.7 or later is recommended. +- Support for Mattermost Server v10.11 [Extended Support Release](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) reached the end of its life cycle on August 15, 2026. Upgrading to Mattermost Server v11.7 or later is recommended. - Upgrading from one Extended Support Release (ESR) to the next ESR (``major`` -> ``major_next``) is fully supported and tested. However, upgrading across multiple ESR versions (``major`` to ``major+2``) is supported, but not tested. If you plan to skip versions, we strongly recommend upgrading only between ESR releases. For example, if you're upgrading from v8.1 ESR, upgrade to the v9.5 ESR or the v9.11 ESR before attempting to upgrade to the [v10.11 ESR](https://docs.mattermost.com/product-overview/mattermost-v10-changelog.html#release-v10-11-extended-support-release) or the [v11.7 ESR](https://docs.mattermost.com/product-overview/mattermost-server-releases.html). - See the [Important Upgrade Notes](https://docs.mattermost.com/upgrade/important-upgrade-notes.html) documentation for details on upgrading to a newer release. - See the [changelog in progress](https://bit.ly/2nK3cVf) for details about the upcoming release. From 772d8c56e827b642294d6966adf01dfeed02358f Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Wed, 22 Jul 2026 11:09:08 +0300 Subject: [PATCH 08/17] Update ESR support snippet to reflect v10.11 ESR has reached end of life --- source/product-overview/common-esr-support.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/source/product-overview/common-esr-support.md b/source/product-overview/common-esr-support.md index f04561abba2..55824a014d7 100644 --- a/source/product-overview/common-esr-support.md +++ b/source/product-overview/common-esr-support.md @@ -1,4 +1,4 @@ -- Support for Mattermost Server v10.11 [Extended Support Release](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) is coming to the end of its life cycle on August 15, 2026. Upgrading to [Mattermost Server v11.7](https://docs.mattermost.com/product-overview/mattermost-server-releases.html) or later is recommended. +- Support for Mattermost Server v10.11 [Extended Support Release](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) reached the end of its life cycle on August 15, 2026. Upgrading to [Mattermost Server v11.7](https://docs.mattermost.com/product-overview/mattermost-server-releases.html) or later is recommended. - All Mattermost users must accept Mattermost's [Acceptable Use Policy](https://mattermost.com/terms-of-use/#acceptable-use-policy) and [Privacy Policy](https://mattermost.com/privacy-policy/) when creating an account or accessing Mattermost. For customers with a Mattermost subscription, including self-hosted deployments, organizations may replace or override the Acceptable Use Policy in the [Mattermost System Console](https://docs.mattermost.com/administration-guide/configure/site-configuration-settings.html#terms-of-use-link) with their own acceptable use or conduct policies, based on contractual terms with Mattermost, so long as your own terms either incorporate the Acceptable Use Policy or include equivalent terms. If you change the default link to add your own terms for using the service you provide, your new terms must include a link to the default terms so end users are aware of the Mattermost Acceptable Use Policy for Mattermost software. \ No newline at end of file From d23dd59d896cca8d9939f979a462f44237d91909 Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Wed, 22 Jul 2026 11:09:39 +0300 Subject: [PATCH 09/17] Update ESR support note to reflect v10.11 ESR has reached end of life --- .../upgrade/prepare-to-upgrade-mattermost.rst | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst b/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst index 37eddc87485..564b9f44c2e 100644 --- a/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst +++ b/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst @@ -58,7 +58,7 @@ We strongly recommend that you: - Upgrade your instance of Mattermost to the latest :doc:`Extended Support Release (ESR) ` first before attempting to run the Mattermost v6.0 upgrade. .. important:: - Support for Mattermost Server v10.11 :doc:`Extended Support Release ` is coming to the end of its life cycle on August 15, 2026. Upgrading to Mattermost Server v11.7 Extended Support Release or later is recommended. Upgrading from the previous Extended Support Release to the latest Extended Support Release is supported. Review the :doc:`important-upgrade-notes` for all intermediate versions in between to ensure you’re aware of the possible migrations that could affect your upgrade. + Support for Mattermost Server v10.11 :doc:`Extended Support Release ` reached the end of its life cycle on August 15, 2026. Upgrading to Mattermost Server v11.7 Extended Support Release or later is recommended. Upgrading from the previous Extended Support Release to the latest Extended Support Release is supported. Review the :doc:`important-upgrade-notes` for all intermediate versions in between to ensure you’re aware of the possible migrations that could affect your upgrade. v6.0 database schema migrations ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -100,17 +100,17 @@ Ensure you review the :doc:`important-upgrade-notes` for all intermediate releas ALTER TABLE users ALTER COLUMN notifyprops TYPE jsonb USING notifyprops::jsonb; ALTER TABLE users ALTER COLUMN timezone TYPE jsonb USING timezone::jsonb; - Once you've identified the table being affected, verify how many invalid occurrences of `\u0000` you have using the following SELECT query: + Once you've identified the table being affected, verify how many invalid occurrences of `` you have using the following SELECT query: .. code-block:: sh - SELECT COUNT(*) FROM TableName WHERE ColumnName LIKE '%\u0000%'; + SELECT COUNT(*) FROM TableName WHERE ColumnName LIKE '%%'; Then select and fix the rows accordingly. If you prefer, you can also fix all occurrences at once in a given table or column using the following UPDATE query: .. code-block:: sh - UPDATE TableName SET ColumnName = regexp_replace(ColumnName, '\\u0000', '', 'g') WHERE ColumnName LIKE '%\u0000%'; + UPDATE TableName SET ColumnName = regexp_replace(ColumnName, '\\u0000', '', 'g') WHERE ColumnName LIKE '%%'; Upgrade high availability cluster-based deployments --------------------------------------------------- From 71758198f88bfd82c7cee537c3c75ec62ecce43c Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Wed, 22 Jul 2026 11:12:14 +0300 Subject: [PATCH 10/17] Update prepare-to-upgrade-mattermost.rst --- .../upgrade/prepare-to-upgrade-mattermost.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst b/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst index 564b9f44c2e..f6cca792b28 100644 --- a/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst +++ b/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst @@ -58,7 +58,7 @@ We strongly recommend that you: - Upgrade your instance of Mattermost to the latest :doc:`Extended Support Release (ESR) ` first before attempting to run the Mattermost v6.0 upgrade. .. important:: - Support for Mattermost Server v10.11 :doc:`Extended Support Release ` reached the end of its life cycle on August 15, 2026. Upgrading to Mattermost Server v11.7 Extended Support Release or later is recommended. Upgrading from the previous Extended Support Release to the latest Extended Support Release is supported. Review the :doc:`important-upgrade-notes` for all intermediate versions in between to ensure you’re aware of the possible migrations that could affect your upgrade. + Support for Mattermost Server v10.11 :doc:`Extended Support Release ` has come to the end of its life cycle on August 15, 2026. Upgrading to Mattermost Server v11.7 Extended Support Release or later is required. Upgrading from the previous Extended Support Release to the latest Extended Support Release is supported. Review the :doc:`important-upgrade-notes` for all intermediate versions in between to ensure you’re aware of the possible migrations that could affect your upgrade. v6.0 database schema migrations ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ From 1a667c09d28bbe34594134d8acec9f2ec0e66d58 Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Wed, 22 Jul 2026 11:13:13 +0300 Subject: [PATCH 11/17] Update common-esr-support-rst.rst --- source/product-overview/common-esr-support-rst.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/source/product-overview/common-esr-support-rst.rst b/source/product-overview/common-esr-support-rst.rst index 9be83d71315..aef3b56cbc3 100644 --- a/source/product-overview/common-esr-support-rst.rst +++ b/source/product-overview/common-esr-support-rst.rst @@ -3,4 +3,4 @@ .. important:: - Support for Mattermost Server v10.11 :ref:`Extended Support Release ` reached the end of its life cycle on August 15, 2026. Upgrading to :doc:`Mattermost Server v11.7 or later ` is recommended. + Support for Mattermost Server v10.11 :ref:`Extended Support Release ` has come to the end of its life cycle on August 15, 2026. Upgrading to :doc:`Mattermost Server v11.7 or later ` is required. From 77ad1a1ba7410ced45efce36b2ad95eeca920a4d Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Wed, 22 Jul 2026 11:13:25 +0300 Subject: [PATCH 12/17] Update common-esr-support-upgrade.md --- source/product-overview/common-esr-support-upgrade.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/source/product-overview/common-esr-support-upgrade.md b/source/product-overview/common-esr-support-upgrade.md index c0ca2331fcd..04ad3c8baf0 100644 --- a/source/product-overview/common-esr-support-upgrade.md +++ b/source/product-overview/common-esr-support-upgrade.md @@ -1,6 +1,6 @@ -- Support for Mattermost Server v10.11 [Extended Support Release](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) reached the end of its life cycle on August 15, 2026. Upgrading to Mattermost Server v11.7 or later is recommended. +- Support for Mattermost Server v10.11 [Extended Support Release](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) has come to the end of its life cycle on August 15, 2026. Upgrading to Mattermost Server v11.7 or later is required. - Upgrading from one Extended Support Release (ESR) to the next ESR (``major`` -> ``major_next``) is fully supported and tested. However, upgrading across multiple ESR versions (``major`` to ``major+2``) is supported, but not tested. If you plan to skip versions, we strongly recommend upgrading only between ESR releases. For example, if you're upgrading from v8.1 ESR, upgrade to the v9.5 ESR or the v9.11 ESR before attempting to upgrade to the [v10.11 ESR](https://docs.mattermost.com/product-overview/mattermost-v10-changelog.html#release-v10-11-extended-support-release) or the [v11.7 ESR](https://docs.mattermost.com/product-overview/mattermost-server-releases.html). - See the [Important Upgrade Notes](https://docs.mattermost.com/upgrade/important-upgrade-notes.html) documentation for details on upgrading to a newer release. - See the [changelog in progress](https://bit.ly/2nK3cVf) for details about the upcoming release. From 5f3643e523c6fdb95af1971332ea83523bc61ced Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Wed, 22 Jul 2026 11:13:37 +0300 Subject: [PATCH 13/17] Update common-esr-support.md --- source/product-overview/common-esr-support.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/source/product-overview/common-esr-support.md b/source/product-overview/common-esr-support.md index 55824a014d7..72a03cdee67 100644 --- a/source/product-overview/common-esr-support.md +++ b/source/product-overview/common-esr-support.md @@ -1,4 +1,4 @@ -- Support for Mattermost Server v10.11 [Extended Support Release](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) reached the end of its life cycle on August 15, 2026. Upgrading to [Mattermost Server v11.7](https://docs.mattermost.com/product-overview/mattermost-server-releases.html) or later is recommended. -- All Mattermost users must accept Mattermost's [Acceptable Use Policy](https://mattermost.com/terms-of-use/#acceptable-use-policy) and [Privacy Policy](https://mattermost.com/privacy-policy/) when creating an account or accessing Mattermost. For customers with a Mattermost subscription, including self-hosted deployments, organizations may replace or override the Acceptable Use Policy in the [Mattermost System Console](https://docs.mattermost.com/administration-guide/configure/site-configuration-settings.html#terms-of-use-link) with their own acceptable use or conduct policies, based on contractual terms with Mattermost, so long as your own terms either incorporate the Acceptable Use Policy or include equivalent terms. If you change the default link to add your own terms for using the service you provide, your new terms must include a link to the default terms so end users are aware of the Mattermost Acceptable Use Policy for Mattermost software. \ No newline at end of file +- Support for Mattermost Server v10.11 [Extended Support Release](https://docs.mattermost.com/product-overview/release-policy.html#extended-support-releases) has come to the end of its life cycle on August 15, 2026. Upgrading to [Mattermost Server v11.7](https://docs.mattermost.com/product-overview/mattermost-server-releases.html) or later is required. +- All Mattermost users must accept Mattermost's [Acceptable Use Policy](https://mattermost.com/terms-of-use/#acceptable-use-policy) and [Privacy Policy](https://mattermost.com/privacy-policy/) when creating an account or accessing Mattermost. For customers with a Mattermost subscription, including self-hosted deployments, organizations may replace or override the Acceptable Use Policy in the [Mattermost System Console](https://docs.mattermost.com/administration-guide/configure/site-configuration-settings.html#terms-of-use-link) with their own acceptable use or conduct policies, based on contractual terms with Mattermost, so long as your own terms either incorporate the Acceptable Use Policy or include equivalent terms. If you change the default link to add your own terms for using the service you provide, your new terms must include a link to the default terms so end users are aware of the Mattermost Acceptable Use Policy for Mattermost software. From 81c12862394ed666a96a78bb01dd631eaee92416 Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Wed, 22 Jul 2026 11:18:48 +0300 Subject: [PATCH 14/17] Fix corrupted null-escape sequences in troubleshooting section --- .../upgrade/prepare-to-upgrade-mattermost.rst | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst b/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst index f6cca792b28..ad49f759ff9 100644 --- a/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst +++ b/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst @@ -100,17 +100,17 @@ Ensure you review the :doc:`important-upgrade-notes` for all intermediate releas ALTER TABLE users ALTER COLUMN notifyprops TYPE jsonb USING notifyprops::jsonb; ALTER TABLE users ALTER COLUMN timezone TYPE jsonb USING timezone::jsonb; - Once you've identified the table being affected, verify how many invalid occurrences of `` you have using the following SELECT query: + Once you've identified the table being affected, verify how many invalid occurrences of `\\u0000` you have using the following SELECT query: .. code-block:: sh - SELECT COUNT(*) FROM TableName WHERE ColumnName LIKE '%%'; + SELECT COUNT(*) FROM TableName WHERE ColumnName LIKE '%\\u0000%'; Then select and fix the rows accordingly. If you prefer, you can also fix all occurrences at once in a given table or column using the following UPDATE query: .. code-block:: sh - UPDATE TableName SET ColumnName = regexp_replace(ColumnName, '\\u0000', '', 'g') WHERE ColumnName LIKE '%%'; + UPDATE TableName SET ColumnName = regexp_replace(ColumnName, '\\u0000', '', 'g') WHERE ColumnName LIKE '%\\u0000%'; Upgrade high availability cluster-based deployments --------------------------------------------------- From 88fa245782af1e72b20f311e3cc2fe0dd82abd9d Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Wed, 29 Jul 2026 16:56:32 +0300 Subject: [PATCH 15/17] Update release-policy.md --- source/product-overview/release-policy.md | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/source/product-overview/release-policy.md b/source/product-overview/release-policy.md index 8be40c912f0..7e8e0a41736 100644 --- a/source/product-overview/release-policy.md +++ b/source/product-overview/release-policy.md @@ -48,6 +48,8 @@ gantt axisFormat %b %y section Releases + v10.11 & Desktop App v5.13 Extended Support :crit, 2025-08-16, 2026-08-15 + v10.12 :done, 2025-09-16, 2025-12-15 v11.0 :done, 2025-10-16, 2026-01-15 v11.1 :done, 2025-11-14, 2026-02-15 v11.2 :done, 2025-12-16, 2026-03-15 @@ -58,7 +60,8 @@ gantt v11.7 & Desktop App v6.2 Extended Support :crit, 2026-05-15, 2027-05-15 v11.8 :active, 2026-06-16, 2026-09-15 v11.9 :active, 2026-07-16, 2026-10-15 - v11.10 :active, 2026-08-16, 2026-11-15 + v11.10 :active, 2026-08-14, 2026-11-15 + v11.11 :active, 2026-09-16, 2026-12-15 ``` **Timeline Legend:** @@ -81,11 +84,11 @@ For deprecated ESRs, an email announcement is sent 3 months in advance. We also ### Legacy Releases -The following table lists all releases across Mattermost v7.0, v8.0, v9.0, and v10.0, including ESRs. See the [unsupported legacy releases](https://docs.mattermost.com/product-overview/unsupported-legacy-releases.html) documentation for comprehensive changelog details for these legacy releases. +The following table lists all releases across Mattermost v7.0, v8.0, and v9.0, including ESRs. See the [unsupported legacy releases](https://docs.mattermost.com/product-overview/unsupported-legacy-releases.html) documentation for comprehensive changelog details for these legacy releases. ```{Important} - If you're on a legacy Mattermost release prior to v7.1, in order to take advantage of newer Mattermost releases, you must upgrade to [v7.1 ESR](https://docs.mattermost.com/product-overview/unsupported-legacy-releases.html#release-v7-1-extended-support-release) at a minimum. -- Upgrading from one Extended Support Release (ESR) to the next ESR (``major`` -> ``major_next``) is fully supported and tested. However, upgrading across multiple ESR versions (``major`` to ``major+2``) is supported, but not tested. If you plan to skip versions, we strongly recommend upgrading only between ESR releases. For example, if you're upgrading from v8.1 ESR, upgrade to the v9.5 ESR or the v9.11 ESR before attempting to upgrade to the [v10.11 ESR](https://docs.mattermost.com/product-overview/mattermost-v10-changelog.html#release-v10-11-extended-support-release) or the [v11.7 ESR](https://docs.mattermost.com/product-overview/mattermost-v11-changelog.html#release-v11-7-extended-support-release). +- Upgrading from one Extended Support Release (ESR) to the next ESR (``major`` -> ``major_next``) is fully supported and tested. However, upgrading across multiple ESR versions (``major`` to ``major+2``) is supported, but not tested. If you plan to skip versions, we strongly recommend upgrading only between ESR releases. For example, if you're upgrading from v8.1 ESR, upgrade to the v9.5 ESR or the v9.11 ESR before attempting to upgrade to the [v11.7 ESR](https://docs.mattermost.com/product-overview/mattermost-v11-changelog.html#release-v11-7-extended-support-release). ``` | **Release** | **Release Type** | **Support ended** | From 951155957159b887af886c3d50fbbc22979bb09a Mon Sep 17 00:00:00 2001 From: Claude Date: Tue, 4 Aug 2026 11:50:18 +0000 Subject: [PATCH 16/17] Revert unrelated backtick/escape fix in prepare-to-upgrade-mattermost.rst This change was out of scope for the ESR docs update and flagged as such in review; removing it to keep the PR focused. Co-Authored-By: Claude Sonnet 5 --- .../upgrade/prepare-to-upgrade-mattermost.rst | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst b/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst index ad49f759ff9..7d21ce4bc91 100644 --- a/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst +++ b/source/administration-guide/upgrade/prepare-to-upgrade-mattermost.rst @@ -100,17 +100,17 @@ Ensure you review the :doc:`important-upgrade-notes` for all intermediate releas ALTER TABLE users ALTER COLUMN notifyprops TYPE jsonb USING notifyprops::jsonb; ALTER TABLE users ALTER COLUMN timezone TYPE jsonb USING timezone::jsonb; - Once you've identified the table being affected, verify how many invalid occurrences of `\\u0000` you have using the following SELECT query: + Once you've identified the table being affected, verify how many invalid occurrences of `\u0000` you have using the following SELECT query: .. code-block:: sh - SELECT COUNT(*) FROM TableName WHERE ColumnName LIKE '%\\u0000%'; + SELECT COUNT(*) FROM TableName WHERE ColumnName LIKE '%\u0000%'; Then select and fix the rows accordingly. If you prefer, you can also fix all occurrences at once in a given table or column using the following UPDATE query: .. code-block:: sh - UPDATE TableName SET ColumnName = regexp_replace(ColumnName, '\\u0000', '', 'g') WHERE ColumnName LIKE '%\\u0000%'; + UPDATE TableName SET ColumnName = regexp_replace(ColumnName, '\\u0000', '', 'g') WHERE ColumnName LIKE '%\u0000%'; Upgrade high availability cluster-based deployments --------------------------------------------------- From c5b94e48493010142e4de2573c2b59a435103600 Mon Sep 17 00:00:00 2001 From: Amy Blais <29708087+amyblais@users.noreply.github.com> Date: Tue, 11 Aug 2026 09:03:26 +0300 Subject: [PATCH 17/17] Update release-policy.md --- source/product-overview/release-policy.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/source/product-overview/release-policy.md b/source/product-overview/release-policy.md index 7e8e0a41736..812fd460912 100644 --- a/source/product-overview/release-policy.md +++ b/source/product-overview/release-policy.md @@ -25,7 +25,7 @@ See the full list of all Mattermost Server and desktop app releases and life cyc Mattermost Extended Support Releases (ESRs) are a strategic choice for organizations looking for stability and reduced frequency of updates. Using ESRs can minimize disruptions associated with frequent upgrades, making them an attractive option for environments where stability is paramount. -The ESR lifecycle for Mattermost server and desktop app Extended Support Releases is as follows: +The lifecycle for Mattermost server and desktop app Extended Support Releases is as follows: - **Cadence**: ESRs are released every 9 months. - **Support**: ESRs are supported for 12 months.