--- title: "Upgrade Mattermost" sidebar_label: "Upgrade" --- Stay up to date with the latest features and improvements. - [Important upgrade notes](/administration-guide/upgrade/important-upgrade-notes) - Find version-specific upgrade considerations. - [Prepare to upgrade Mattermost](/administration-guide/upgrade/prepare-to-upgrade-mattermost) - Learn how to prepare for a Mattermost upgrade. - [Communicate scheduled maintenance best practices](/administration-guide/upgrade/communicate-scheduled-maintenance) - Learn best practices for communicating scheduled server maintenance in advance of a service maintenance window. - [Upgrade Mattermost Server](/administration-guide/upgrade/upgrading-mattermost-server) - Learn the basics of upgrading your Mattermost server to the latest version. - [Upgrade Mattermost in Kubernetes and High Availability environments](/administration-guide/upgrade/upgrade-mattermost-kubernetes-ha) - Learn how to upgrade Mattermost in Kubernetes and High Availability environments. - [Upgrade PostgreSQL](/administration-guide/upgrade/upgrading-postgres) - Learn how to upgrade your PostgreSQL database server. - [Upgrade Team Edition to Enterprise Edition](/administration-guide/upgrade/enterprise-install-upgrade) - Learn how to upgrade your Mattermost Team Edition server to Enterprise Edition. - [Downgrade Mattermost Server](/administration-guide/upgrade/downgrading-mattermost-server) - Find out how to roll back to older versions of Mattermost. ## After you upgrade - [Administrator onboarding tasks](/administration-guide/upgrade/admin-onboarding-tasks) - Learn about the onboarding tasks for administrators after an upgrade. - [Enterprise roll-out checklist](/administration-guide/upgrade/enterprise-roll-out-checklist) - Learn about the roll-out checklist for enterprise users. - [Welcome email to end users](/administration-guide/upgrade/welcome-email-to-end-users) - Learn how to send a welcome email to end users after an upgrade. ## Reference - [Open source components](/administration-guide/upgrade/open-source-components) - Find out about the open source components used in Mattermost.