Ports content drift from the legacy Sphinx docs repo (mattermost/docs) since the P13 migration fork point into the corresponding Administration Guide > Manage MDX pages: - ABAC v11.7/v11.8: public channel membership policies (advisory vs. hard-gate behavior), channel-level permission policies, policy simulation, and team-scoped membership policies in Team Settings (abac-channel-access-rules, abac-system-wide-policies, attribute-based-access-control) - User Attributes: separate Display Name/Attribute name fields, backfill note, terminology updates - Content flagging: quarantined message report generation and post deletion report documentation - Autotranslation: translation target language and language-pair clarifications - Generating support packet: sanitize typo fixes, removed stale ElasticsearchSettings.ClientKey reference - Installing license key: Site Statistics -> System Statistics rename - Team/channel members: SetChannelMembers bulk API note - Telemetry: removed Rudder/Segment-specific reporting details following the telemetry stack migration - Statistics: Site Statistics -> System Statistics rename - Health check probes: corrected Go import path example - mmctl: documented --workers flag for import process, renamed Custom Profile Attribute -> User Attribute in cpa command docs - Logging: removed unused audit log file rotation settings from the Cloud defaults note Co-authored-by: Cursor <cursoragent@cursor.com>
Mattermost is an open core, self-hosted collaboration platform that offers chat, workflow automation, voice calling, screen sharing, and AI integration. This repo is the primary source for core development on the Mattermost platform; it's written in Go and React, runs as a single Linux binary, and relies on PostgreSQL. A new compiled version is released under an MIT license every month on the 16th.
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Learn more about the following use cases with Mattermost:
Other useful resources:
- Download and Install Mattermost - Install, setup, and configure your own Mattermost instance.
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Table of contents
- Install Mattermost
- Native mobile and desktop apps
- Get security bulletins
- Get involved
- Learn more
- License
- Get the latest news
- Contributing
Install Mattermost
- Download and Install Mattermost Self-Hosted - Deploy a Mattermost Self-hosted instance in minutes via Docker, Ubuntu, or tar.
- Get started in the cloud to try Mattermost today.
- Developer machine setup - Follow this guide if you want to write code for Mattermost.
Other install guides:
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- Kubernetes
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Native mobile and desktop apps
In addition to the web interface, you can also download Mattermost clients for Android, iOS, Windows PC, macOS, and Linux.
Get security bulletins
Receive notifications of critical security updates. The sophistication of online attackers is perpetually increasing. If you're deploying Mattermost it's highly recommended you subscribe to the Mattermost Security Bulletin mailing list for updates on critical security releases.
Get involved
- Contribute to Mattermost
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Learn more
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License
See the LICENSE file for license rights and limitations.
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Contributing
Please see CONTRIBUTING.md. Join the Mattermost Contributors server to join community discussions about contributions, development, and more.




