Desktop operating system: Windows: Windows 10+ Mac: macOS 11+ Linux: Ubuntu LTS releases 18.04 or later Server software: Ubuntu 18.04, Debian Buster, CentOS 6+, CentOS 7+, RedHat Enterprise Linux 7+, Oracle Linux 6+, Oracle Linux 7+. Using the Mattermost Docker deployment on a Docker-compatible operating system (Linux-based OS) is still recommended. While community support exists for Fedora, FreeBSD, and Arch Linux, Mattermost does not currently include production support for these platforms. Database software: PostgreSQL 11.0+ MySQL 5.7.12, 8.0.12+ (see note below on MySQL 8 support) For more detailed information, refer to the Mattermost software and hardware requirements.