* Add Playwright E2E tests for demo plugin webapp components Adds 7 new spec files covering the demo plugin's webapp components: Root Modal (user actions, menus, post dropdown), sidebar components, channel header button/RHS, file upload/preview components, and user settings. Updates helpers.ts with shared assertRootModal and closeRootModal helpers. Adds sample-file.demo test asset. Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com> * Address CodeRabbit review feedback - Scope 'more actions' button to post container in demo_file_components - Replace regex with string for profile popover accessible name - Replace evaluate click with .click() and clean up dialog handler in demo_user_settings - Remove Cancel bug test from demo_root_modal_menus with explanatory comment Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com> * Implement feedback as per review Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com> * Implement CodeRabbit suggestion: wait for upload response in uploadFileViaYourComputer Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com> * Implement CodeRabbit suggestion: scope hover to post container in demo_file_components Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com> * fix: use import type for Client4 to satisfy consistent-type-imports rule Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * E2E/Test: Skip broken Sample Confirmation Dialog test; fix default_config after master merge - Skip demo_root_modal_menus "Sample Confirmation Dialog": unable to resolve this test failure, it is a bug with the demo plugin. v0.10.3 does not set a URL on the openInteractiveDialog call, causing the webapp to log "Interactive dialog missing URL" and render nothing. Test will be re-enabled once the plugin is fixed and the build bumped. - Remove EnableAccessControlAuditLogging and AIRecapSettings from default_config.ts — both fields were removed when I synced up from master. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * E2E/Test: Restore EnableAccessControlAuditLogging and AIRecapSettings to default_config Both fields are still required in @mattermost/types as of master. They were incorrectly removed in the previous commit because the local dist was stale after the master merge. Rebuilt webapp platform packages to confirm correct type state before restoring. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> --------- Co-authored-by: Mattermost Build <build@mattermost.com> Co-authored-by: Claude Sonnet 4.6 (1M context) <noreply@anthropic.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.
Deploy Mattermost on-premises, or try it for free in the cloud.
Learn more about the following use cases with Mattermost:
Other useful resources:
- Download and Install Mattermost - Install, setup, and configure your own Mattermost instance.
- Product documentation - Learn how to run a Mattermost instance and take advantage of all the features.
- Developer documentation - Contribute code to Mattermost or build an integration via APIs, Webhooks, slash commands, Apps, and plugins.
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
- Debian Buster
- RHEL 8
- 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.
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
- Find "Help Wanted" projects
- Join Developer Discussion on a Mattermost server for contributors
- 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.
Get the latest news
- X - Follow Mattermost on X, formerly Twitter.
- Blog - Get the latest updates from the Mattermost blog.
- Facebook - Follow Mattermost on Facebook.
- LinkedIn - Follow Mattermost on LinkedIn.
- Email - Subscribe to our newsletter (1 or 2 per month).
- Mattermost - Join the ~contributors channel on the Mattermost Community Server.
- IRC - Join the #matterbridge channel on Freenode (thanks to matterircd).
- YouTube - Subscribe to Mattermost.
Contributing
Please see CONTRIBUTING.md. Join the Mattermost Contributors server to join community discussions about contributions, development, and more.




