engineVersion

The name of your CEV. The name format is `major version.customized_string`. For example, a valid CEV name is `19.my_cev1`. This setting is required for RDS Custom for Oracle, but optional for Amazon RDS. The combination of `Engine` and `EngineVersion` is unique per customer per Region. Constraints: Minimum length is 1. Maximum length is 60. Pattern: `^[a-z0-9_.-]{1,60$`}