3.1 Options and Restrictions for Oracle Restart Downgrades

Review these downgrade options and restrictions when you downgrade Oracle Restart to an earlier release after a successful or a failed upgrade.

Downgrade options include the following earlier releases:

• Oracle Restart downgrade to Oracle Restart 18c.

• Oracle Restart downgrade to Oracle Restart 12c Release 2 (12.2).

• Oracle Restart downgrade to Oracle Restart 12c Release 1 (12.1.0.2).

• Oracle Restart downgrade to Oracle Restart 11g Release 2 (11.2.0.4).

Restrictions for Oracle Restart Downgrades

• You can downgrade Oracle Restart to an earlier release only if you did not make any configuration changes after the upgrade.
• You can only downgrade to the Oracle Restart release you upgraded from. For example, if you upgraded from Oracle Restart 18c to Oracle Restart 19c, then you can only downgrade to Oracle Restart 18c.