The information and instructions in the following sections will help you to perform an online upgrade from Open Enterprise Server (OES) 2018 to OES 2023 using ZENworks 2020 Update 3. After you perform the steps detailed in the Assigning the Bundles and Scheduling the Upgrades section, your OES 2018 servers will be upgraded based on the configured schedule.
To ensure that your upgrade runs smoothly, we recommend that you read the following sections before performing the work outlined in them: