The process to upgrade in an Oracle Cloud Infrastructure US Government Cloud region is similar to upgrading in other regions. However, you must complete some additional pre-upgrade steps:

1. Grant Oracle Integration access to your tenancy. Add the following policy statements to your tenancy:

   allow service integration to read users in tenancy
   allow service integration to read groups in tenancy
   allow service integration to read group-memberships in tenancy
   allow service integration to manage credentials in tenancy
   allow service integration to read policies in tenancy
   allow service integration to read compartments in tenancy
   allow service integration to manage domains in tenancy
   allow service integration to manage integration-instances in tenancy

2. On the Upgrade page of your Oracle Integration Generation 2 instance, in the Policy OCIDs of Service Role box, enter the OCIDs for the policies you created to grant access to your service role groups. See Assign Policies to Service Role Groups That Grant Access and Permissions. These service role group mappings will be migrated to the Oracle Integration 3 instance during upgrade.

Continue with the remaining upgrade process, starting with Check Upgrade Readiness and Correct Precheck Issues.