Starting with Oracle Database 21c, AutoUpgrade automates the steps necessary to upgrade a database in an Oracle Data Guard configuration.
Steps that AutoUpgrade automates includes disabling and re-enabling the Data Guard Broker (if present), and deferring log file transport while the upgrade takes place. Automation of these Oracle Data Guard operations in the context of a database upgrade eliminates the need for manual or scripted steps that you otherwise would have to perform yourself. This in turn makes it easier to automate upgrades of databases in Oracle Data Guard configurations. This feature particularly helps to automate upgrades in high-end environments, where there can be many hundreds of such databases that you upgrade as part of your upgrade project.