Upgrade > Upgrade the applications from a version earlier than 9.60 > Planning an upgrade > Step 4: Create development and test environment

Step 4: Create development and test environments

Plan to have at least two copies of your existing production environment:

  • A development system that mirrors your current production environment. Use the development system to run the out-of-box upgrade and build a custom upgrade.
  • A test system that mirrors your current production environment. Apply the custom upgrade on the test system and verify it there.