Upgrade, Downgrade, and Rollback

Throughout this chapter, the following terminologies will be used:

•

Upgrade - This is the process to upgrade to a higher release (for example, from 8.0.x to 8.1.x) by running the upgrade script that comes with the service pack.

•

Downgrade - This is the process to revert to a previous release (for example, 8.1.0 to 8.0.1, or 8.0.3 to 8.0.1) by running the downgrade script that comes with the service pack. Refer to Downgrade/Rollback for more details.

•

Rollback - This is the process to remove a hotfix/service pack within a release by running a rollback script, which is included with every service pack/hotfix. Refer to Downgrade/Rollback for more details.