engineVersion

The database engine version. Updating this argument results in an outage. See the Aurora MySQL and Aurora Postgres documentation for your configured engine to determine this value, or by running aws rds describe-db-engine-versions. For example with Aurora MySQL 2, a potential value for this argument is 5.7.mysql_aurora.2.03.2. The value can contain a partial version where supported by the API. The actual engine version used is returned in the attribute engine_version_actual, , see Attributes Reference below.