public Boolean getAllowMajorVersionUpgrade() {
        return this.allowMajorVersionUpgrade;
    }
<p>
Indicates that major version upgrades are allowed. Changing this parameter doesn't result in an outage and the
change is asynchronously applied as soon as possible.
</p>

@return Indicates that major version upgrades are allowed. Changing this parameter doesn't result in an outage
        and the change is asynchronously applied as soon as possible.
aws-java-sdk-neptune/src/main/java/com/amazonaws/services/neptune/model/ModifyDBInstanceRequest.java