# Mattermost Desktop App 5.11 – Important Compatibility Notice **URL:** \ **Category:** Troubleshooting\ **Created:** [February 19, 2025, 3:55pm UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599 "2025-02-19T15:55:57Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![sven.huester](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/sven.huester/32/8724_2.png) [@sven.huester](https://forum.mattermost.com/u/sven.huester)\ **Post date:** [February 19, 2025, 3:55pm UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/1 "2025-02-19T15:55:57Z")
# Update March 12th 2025: 5.11.2 is out now and resolves the issues mentioned below. You can update through the app or by downloading the latest release from the [Desktop App releases page](https://docs.mattermost.com/about/mattermost-desktop-releases.html). Original Post: We recently released **Mattermost Desktop App version 5.11** , introducing key performance and reliability improvements. However, **this version is only compatible with Mattermost Server 9.4 or higher**. #### Who Is Affected? If your organization is running a **Mattermost Server version earlier than 9.4** , you may experience one of the following issues after updating to Desktop App 5.11: - A **blank page** when trying to access your workspace or boards - An **endless loading spinner** when starting up the app If your Mattermost Server is already on version 9.4 or higher, you will not be affected. #### How to Check Your Desktop App Version To confirm if you are using Desktop App 5.11: 1. Open the Mattermost Desktop App. 2. Click on **Help** in the top menu. 3. Locate the **Version Information** at the bottom of the dropdown. If your version is **5.11** , and you are unable to access Mattermost, follow the steps below to restore access. #### How to Fix This Issue You can **downgrade to an earlier version** of the Desktop App to restore functionality: 1. **Uninstall** Desktop App 5.11. 2. **Download and install** an earlier version: - [Mattermost Desktop App 5.10.2 (recommended)](https://github.com/mattermost/desktop/releases/tag/v5.10.2) - Any version **before 5.11** from our [Desktop App Releases page](https://docs.mattermost.com/about/mattermost-desktop-releases.html). 3. **Relaunch** the app and log in as usual. #### What We’re Doing About It We recognize the impact this has had on some users, and we’re actively working on a **hotfix**. The next update will: - Display a **clear error message** instead of a blank screen or endless spinner - Provide guidance on resolving the issue for affected users For more details, check out our [Desktop App changelog](https://docs.mattermost.com/about/desktop-app-changelog.html#release-v5-11-extended-support-release) and [Known Issues section](https://docs.mattermost.com/about/desktop-app-changelog.html#known-issues). If you need help, visit our [Community Forum](https://forum.mattermost.com/) or report issues on our [GitHub repository](https://github.com/mattermost/desktop/issues). We appreciate your patience and support as we work toward a resolution. Notice: This post has been updated today (Thu 20th Feb) with better wording and guidance for end users who will be most affected by this change. ---
**Author:** ![thomasvanderwoude](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/thomasvanderwoude/32/6988_2.png) [@thomasvanderwoude](https://forum.mattermost.com/u/thomasvanderwoude)\ **Post date:** [March 5, 2025, 10:33am UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/2 "2025-03-05T10:33:12Z")
We are running on Mattermost version: 9.11.6 and I do get the screen Incompatible Server Version ---
**Author:** ![jgcaruso](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/jgcaruso/32/8780_2.png) [@jgcaruso](https://forum.mattermost.com/u/jgcaruso)\ **Post date:** [March 8, 2025, 9:38pm UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/3 "2025-03-08T21:38:02Z")
I got this error running on Mattermost v10.5.1 which was installed through Cloudron. Downgrading the client worked, but should there be a compatibility issue with the above setup? ---
**Author:** ![spirrello](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/spirrello/32/7667_2.png) [@spirrello](https://forum.mattermost.com/u/spirrello)\ **Post date:** [March 10, 2025, 4:30pm UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/4 "2025-03-10T16:30:33Z")
We’re also getting the `Incompatible server version` while running 10.3 on our server. So far I have only seen this with Windows clients. ---
**Author:** ![kenchasonakai](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/kenchasonakai/32/8785_2.png) [@kenchasonakai](https://forum.mattermost.com/u/kenchasonakai)\ **Post date:** [March 10, 2025, 4:49pm UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/5 "2025-03-10T16:49:49Z")
After upgrading our server from version 9.0.5 to 10.5.1, the Mattermost Desktop App for Windows (version 5.11.1) still displays an `Incompatible server version` upon startup. However, when I click on “channels” in the header, the usual channel list appears. I would also like to know if there is a way to have the channel list page displayed immediately upon launching the application. ---
**Author:** ![kovalev](https://avatars.discourse-cdn.com/v4/letter/k/6f9a4e/32.png) [@kovalev](https://forum.mattermost.com/u/kovalev)\ **Post date:** [March 11, 2025, 7:18am UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/6 "2025-03-11T07:18:43Z")
Caught it too. macOS Sequoia 15.3.1, Mattermost Client (from AppStore) 5.11.1 (135901780382), Mattermost Server 10.5.1. ---
**Author:** ![john.oliver](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/john.oliver/32/6436_2.png) [@john.oliver](https://forum.mattermost.com/u/john.oliver)\ **Post date:** [March 11, 2025, 2:24pm UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/7 "2025-03-11T14:24:15Z")
Suggest rolling back to 5.10.2 until 5.11.2 comes out and should resolve these issues. ---
**Author:** ![sven.huester](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/sven.huester/32/8724_2.png) [@sven.huester](https://forum.mattermost.com/u/sven.huester)\ **Post date:** [March 11, 2025, 11:37pm UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/8 "2025-03-11T23:37:21Z")
Hi all, We’ve identified a bug with the incompatibility screen in 5.11.1 that causes issues on Windows systems even if the server is running a compatible version. The safe workaround is to downgrade to 5.10.2 for the time being while the team is working hard on getting a 5.11.2 dot release out to address this issue. Thanks again for understanding! ---
**Author:** ![catmechanic](https://avatars.discourse-cdn.com/v4/letter/c/5e9695/32.png) [@catmechanic](https://forum.mattermost.com/u/catmechanic)\ **Post date:** [March 12, 2025, 7:14pm UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/9 "2025-03-12T19:14:33Z")
For anyone still waiting on the update, it’s already available for download (thanks Mattermost staff ❤) You will need to **manually** check for the update. Click on the three dots in the top left of the App, hover over “help” and then “check for updates” ---
**Author:** ![sven.huester](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/sven.huester/32/8724_2.png) [@sven.huester](https://forum.mattermost.com/u/sven.huester)\ **Post date:** [March 12, 2025, 8:59pm UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/10 "2025-03-12T20:59:49Z")
Thank you @catmechanic. I have updated the OP with the desktop app release page and will mark this topic as resolved for now. If anyone is still encountering issues after upgrading 5.11.2 please continue to post in this thread. Thank you all for your patience and understanding! ---
**Author:** ![clemasde](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/clemasde/32/8883_2.png) [@clemasde](https://forum.mattermost.com/u/clemasde)\ **Post date:** [April 13, 2025, 8:02am UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/11 "2025-04-13T08:02:37Z")
Hello, the app (version 5.11.2, on Mac) works the first time I add a server, but if I close it, it then displays an error message when I reopen it (with a link bringing me here) “Incompatible server version” Thanks for your help ---
**Author:** ![john.oliver](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/john.oliver/32/6436_2.png) [@john.oliver](https://forum.mattermost.com/u/john.oliver)\ **Post date:** [April 13, 2025, 2:17pm UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/12 "2025-04-13T14:17:28Z")
@clemasde what version is your server? Does it align with [Desktop Releases - Mattermost documentation](https://docs.mattermost.com/about/mattermost-desktop-releases.html) ---
**Author:** ![sunsan](https://avatars.discourse-cdn.com/v4/letter/s/a3d4f5/32.png) [@sunsan](https://forum.mattermost.com/u/sunsan)\ **Post date:** [April 22, 2025, 4:27pm UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/13 "2025-04-22T16:27:08Z")
Mattermost Linux client 5.11.2 isn’t compatible with Rocky 8. Getting error that GLIBC\_2.29 is not found. That version is not available for Rocky 8 ---
**Author:** ![sqrl00](https://avatars.discourse-cdn.com/v4/letter/s/ba9def/32.png) [@sqrl00](https://forum.mattermost.com/u/sqrl00)\ **Post date:** [June 19, 2025, 11:16pm UTC](https://forum.mattermost.com/t/mattermost-desktop-app-5-11-important-compatibility-notice/22599/14 "2025-06-19T23:16:38Z")
Hi we are on Server 10.5 and have tried to move to 5.12 and now 5.11. Both of the new versions dont seem to work at all, downgrading to 5.10 works. When we log on with either we get the top nav bar but nothing else there is nothing in dev tools showing an error. Is there any idea on how we can resolve this