It's written in Golang and React and runs as a single Linux binary with MySQL or PostgreSQL. Every month on the 16th [a new compiled version is released under an MIT license](https://www.mattermost.com/download/).
<imgwidth="1006"alt="screenshot at nov 29 14-11-32"src="https://user-images.githubusercontent.com/13119842/56807911-1bf66f00-67fe-11e9-9b7b-96ce9ceab645.png">
- [Join the Mattermost Contributor's server](https://community.mattermost.com/signup_user_complete/?id=f1924a8db44ff3bb41c96424cdc20676) to join community discussions about contributions, development and more
- [Join the Mattermost Demo server](https://demo.mattermost.com/signup_email) to try out Mattermost and explore sample use cases
[Auto-deploy Mattermost](https://mattermost.com/download/#bitnami) to Amazon Web Services, Azure, Google Cloud Platform, or Oracle Cloud Platform via Bitnami.
In addition to the web interface, you can also download Mattermost clients for [Android](https://play.google.com/store/apps/details?id=com.mattermost.rn), [iOS](https://itunes.apple.com/us/app/mattermost/id1257222717?mt=8), [Windows PC](https://docs.mattermost.com/install/desktop.html#windows-10-windows-8-1-windows-7), [Mac OSX](https://docs.mattermost.com/install/desktop.html#macos-10-9), and [Linux](https://docs.mattermost.com/install/desktop.html#linux).
Receive notifications of critical security updates. The sophistication of online attackers is perpetually increasing. If you are deploying Mattermost it is highly recommended you subscribe to the Mattermost Security Bulletin mailing list for updates on critical security releases.
- [Join Developer Discussion on a Mattermost Server for contributors](https://community.mattermost.com/signup_user_complete/?id=f1924a8db44ff3bb41c96424cdc20676)
- **Email** - Subscribe to our [newsletter](http://mattermost.us11.list-manage.com/subscribe?u=6cdba22349ae374e188e7ab8e&id=2add1c8034) (1 or 2 per month)
- **Mattermost** - Join the ~contributors channel on [the Mattermost Community Server](https://community.mattermost.com/signup_user_complete/?id=f1924a8db44ff3bb41c96424cdc20676).
- **IRC** - Join the #matterbridge channel on [Freenode](https://freenode.net/) (thanks to [matterircd](https://github.com/42wim/matterircd)).