[root@oda1db0host ~]# odacli describe-component System Version --------------- 19.15.0.0.0 System node Name --------------- oda1db0host Local System Version --------------- 19.15.0.0.0 ... snip
https://docs.oracle.com/en/engineered-systems/oracle-database-appliance/19.19/cmtrn/oda-patches.html#GUID-CE9A339E-595B-45DC-889B-AE2F7187D64F
https://blogs.oracle.com/oda/post/oracle-database-19c-support-for-oracle-database-appliance
https://www.dbi-services.com/blog/oda-version-19-18-is-available-how-to-patch/