Upgrades and conversions The ServiceNow platform includes tools to help you during and after an upgrade, and also allows you to convert a ServiceNow Express instance to a ServiceNow Service Management enterprise platform. See also Upgrade to Istanbul The upgrade process moves your instance to a new ServiceNow release version. Understand the difference between upgrading and patching, release definitions, rollback and backup options, and how to test your sub-production and production instance upgrades. Upgrade History moduleThe Upgrade History module tracks every upgrade that has been made to an instance. Administrators can use the module to resolve upgrade conflicts and optionally to revert customizations to base system versions to take advantage of new features.Upgrade MonitorThe Upgrade Monitor helps you upgrade an individual instance. You can monitor the progress of an upgrade and resolve conflicts between the upgrade and customizations. Express conversion to ServiceNow EnterpriseWhen a ServiceNow Express instance is converted to the ServiceNow Service Management enterprise platform, the instance is changed significantly.