# Operate and maintain Day-two operations cover the work that keeps a deployment healthy after it's installed: upgrades, provisioning capacity, and eventual removal. ## What this phase covers [#what-this-phase-covers] * [External provisioners](/beta-docs/@main/install/operate/provisioners/) to isolate workspace builds from the control plane and to add build capacity. * [Upgrading](/beta-docs/@main/install/operate/upgrade/), including [upgrade best practices](/beta-docs/@main/install/operate/upgrade/best-practices/) and the Extended Support Release upgrade paths. * [Uninstall](/beta-docs/@main/install/operate/uninstall/), for decommissioning a deployment and removing the resources it created. ## What lives elsewhere [#what-lives-elsewhere] Ongoing administration isn't part of this section. Authentication, user and group management, templates, networking, monitoring, and security are covered in [Administration](/beta-docs/@main/admin/). Revisit [Plan your deployment](/beta-docs/@main/install/plan/) when your user count outgrows the size you originally chose, and [Validate your deployment](/beta-docs/@main/install/validate/) after any change large enough to alter the load profile.