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* Add OnLicenseChanged plugin hook Notify plugins when the server license changes via SetLicense. Returning an error does not roll back the license change, but deactivates the plugin and marks it failed to stay running. Co-authored-by: Julien Tant <JulienTant@users.noreply.github.com> * Drop error return from OnLicenseChanged hook Match OnCloudLimitsUpdated: fire-and-forget notification with no plugin deactivation on failure. Co-authored-by: Julien Tant <JulienTant@users.noreply.github.com> * Set OnLicenseChanged minimum server version to 12.0 Co-authored-by: Julien Tant <JulienTant@users.noreply.github.com> * Document OnLicenseChanged startup behavior in hook godoc Clarify that the hook is not invoked for the initial license load and that plugins should use API.GetLicense() from OnActivate instead. Co-authored-by: Julien Tant <JulienTant@users.noreply.github.com> --------- Co-authored-by: Cursor Agent <cursoragent@cursor.com> Co-authored-by: Julien Tant <JulienTant@users.noreply.github.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:
- Deploy Mattermost on Docker
- Mattermost Omnibus
- Install Mattermost from Tar
- Ubuntu 20.04 LTS
- Kubernetes
- Helm
- More server install guides
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.
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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
- Find "Help Wanted" projects
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- Get Help With Mattermost
Learn more
- API options - webhooks, slash commands, drivers, and web service
- See who's using Mattermost
- Browse over 700 Mattermost integrations
License
See the LICENSE file for license rights and limitations.
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- Mattermost - Join the ~contributors channel on the Mattermost Community Server.
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Contributing
Please see CONTRIBUTING.md. Join the Mattermost Contributors server to join community discussions about contributions, development, and more.